ffi module

benchmarks/binarytree.ce

@@ -27,7 +27,7 @@ function TreeNode(left, right) {
 }
 
 function itemCheck(node) {
-  if (node.left === null)
+  if (node.left == null)
     return 1;
   return 1 + itemCheck(node.left) + itemCheck(node.right);
 }

benchmarks/js_perf.ce

@@ -296,7 +296,7 @@ function benchClosures() {
 ////////////////////////////////////////////////////////////////////////////////
 
 log.console("JavaScript Performance Benchmark");
-log.console("================================\n");
+log.console("======================\n");
 
 // Property Access
 log.console("BENCHMARK: Property Access");

benchmarks/montecarlo.ce

@@ -1,4 +1,4 @@
-var N = 10000000;
+var N = 1000000;
 var num = 0;
 for (var i = 0; i < N; i ++) {
   var x = 2 * $_.random();

benchmarks/nota.ce

@@ -42,34 +42,34 @@ for (let i = 0; i < 100; i++) {
 
 // Calculate statistics
 function getStats(arr) {
-    const avg = arr.reduce((a, b) => a + b) / arr.length;
-    const min = Math.min(...arr);
-    const max = Math.max(...arr);
+    def avg = arr.reduce((a, b) => a + b) / arr.length;
+    def min = Math.min(...arr);
+    def max = Math.max(...arr);
     return { avg, min, max };
 }
 
 // Pretty print results
-log.console("\n=== Performance Test Results (100 iterations) ===");
+log.console("\n== Performance Test Results (100 iterations) ==");
 log.console("\nJSON Decoding (ms):");
-const jsonDecStats = getStats(jsonDecodeTimes);
+def jsonDecStats = getStats(jsonDecodeTimes);
 log.console(`Average: ${jsonDecStats.avg.toFixed(2)} ms`);
 log.console(`Min: ${jsonDecStats.min.toFixed(2)} ms`);
 log.console(`Max: ${jsonDecStats.max.toFixed(2)} ms`);
 
 log.console("\nJSON Encoding (ms):");
-const jsonEncStats = getStats(jsonEncodeTimes);
+def jsonEncStats = getStats(jsonEncodeTimes);
 log.console(`Average: ${jsonEncStats.avg.toFixed(2)} ms`);
 log.console(`Min: ${jsonEncStats.min.toFixed(2)} ms`);
 log.console(`Max: ${jsonEncStats.max.toFixed(2)} ms`);
 
 log.console("\nNOTA Encoding (ms):");
-const notaEncStats = getStats(notaEncodeTimes);
+def notaEncStats = getStats(notaEncodeTimes);
 log.console(`Average: ${notaEncStats.avg.toFixed(2)} ms`);
 log.console(`Min: ${notaEncStats.min.toFixed(2)} ms`);
 log.console(`Max: ${notaEncStats.max.toFixed(2)} ms`);
 
 log.console("\nNOTA Decoding (ms):");
-const notaDecStats = getStats(notaDecodeTimes);
+def notaDecStats = getStats(notaDecodeTimes);
 log.console(`Average: ${notaDecStats.avg.toFixed(2)} ms`);
 log.console(`Min: ${notaDecStats.min.toFixed(2)} ms`);
 log.console(`Max: ${notaDecStats.max.toFixed(2)} ms`);

benchmarks/wota.ce

@@ -36,7 +36,7 @@ function roundTripWota(value) {
 //   iterations: how many times to loop
 //
 // You can tweak these as you like for heavier or lighter tests.
-const benchmarks = [
+def benchmarks = [
   {
     name: "Small Integers",
     data: [0, 42, -1, 2023],
@@ -76,7 +76,7 @@ const benchmarks = [
 
 // Print a header
 log.console("Wota Encode/Decode Benchmark");
-log.console("============================\n");
+log.console("===================\n");
 
 // We'll run each benchmark scenario in turn.
 for (let bench of benchmarks) {

benchmarks/wota_nota_json.ce

@@ -13,7 +13,7 @@
 //
 
 // Parse command line arguments
-if (arg.length !== 2) {
+if (arg.length != 2) {
   log.console('Usage: cell benchmark_wota_nota_json.ce <LibraryName> <ScenarioName>');
   $_.stop()
 }
@@ -25,7 +25,7 @@ var scenario_name = arg[1];
 // 1. Setup "libraries" array to easily switch among wota, nota, and json
 ////////////////////////////////////////////////////////////////////////////////
 
-const libraries = [
+def libraries = [
   {
     name: "wota",
     encode: wota.encode,
@@ -62,7 +62,7 @@ const libraries = [
 //    Each scenario has { name, data, iterations }
 ////////////////////////////////////////////////////////////////////////////////
 
-const benchmarks = [
+def benchmarks = [
   {
     name: "empty",
     data: [{}, {}, {}, {}],
@@ -139,7 +139,7 @@ function runBenchmarkForLibrary(lib, bench) {
         let e = lib.encode(bench.data[j]);
         // store only in the very first iteration, so we can decode them later
         // but do not store them every iteration or we blow up memory.
-        if (i === 0) {
+        if (i == 0) {
           encodedList.push(e);
           totalSize += lib.getSize(e);
         }
@@ -166,8 +166,8 @@ function runBenchmarkForLibrary(lib, bench) {
 ////////////////////////////////////////////////////////////////////////////////
 
 // Find the requested library and scenario
-var lib = libraries.find(l => l.name === lib_name);
-var bench = benchmarks.find(b => b.name === scenario_name);
+var lib = libraries.find(l => l.name == lib_name);
+var bench = benchmarks.find(b => b.name == scenario_name);
 
 if (!lib) {
   log.console('Unknown library:', lib_name);

cell.md

@@ -1,5 +1,7 @@
 JAVASCRIPT VISION
 
+I see objects as being a sort of combination of a lisp cell and a record: symbols, which are used internally, and are private and non iterable, and record string values, which are iterable, readable, and writable; of course everything becomes locked in when stone.
+
 CELLSCRIPT
 
 Javascript to its core. Objects. What does the language need? It can be quite small, I think. The key is, ANYTHING that we want to be fast and JIT'd, must be present. So, record lookups. These are actually quicker in a jit'd language that have them as a feature. Most things should be libraries. Blobs need to be in the runtime.

examples/http_download_actor.ce

@@ -18,7 +18,7 @@ var state = {
 
 // Helper to calculate progress percentage
 function get_progress() {
-    if (state.total_bytes === 0) {
+    if (state.total_bytes == 0) {
         return 0;
     }
     return Math.round((state.downloaded_bytes / state.total_bytes) * 100);
@@ -150,7 +150,7 @@ function read_next_chunk() {
     try {
         var chunk = http.fetch_read_chunk(state.connection);
         
-        if (chunk === null) {
+        if (chunk == null) {
             // Download complete
             finish_download();
             return;

examples/nat.ce

@@ -18,7 +18,7 @@ $_.portal(e => {
     send(waiting_client, e.actor)
     send(e, waiting_client.actor)
     
-    waiting_client = undefined
+    waiting_client = null
     
     return
   }

meson.build

@@ -161,15 +161,6 @@ else
   endif
 endif
 
-# Try to find system-installed qjs-layout first
-qjs_layout_dep = dependency('qjs-layout', static: true, required: false)
-if not qjs_layout_dep.found()
-  message('⚙  System qjs-layout not found, building subproject...')
-  deps += dependency('qjs-layout', static:true)
-else
-  deps += qjs_layout_dep
-endif
-
 miniz_dep = dependency('miniz', static: true, required: false)
 if not miniz_dep.found()
   message('⚙  System miniz not found, building subproject...')
@@ -178,14 +169,6 @@ else
   deps += miniz_dep
 endif
 
-libuv_dep = dependency('libuv', static: true, required: false)
-if not libuv_dep.found()
-  message('⚙  System libuv not found, building subproject...')
-  deps += dependency('libuv', static:true, fallback: ['libuv', 'libuv_dep'])
-else
-  deps += libuv_dep
-endif
-
 # Try to find system-installed physfs first
 physfs_dep = dependency('physfs', static: true, required: false)
 if not physfs_dep.found()
@@ -207,6 +190,8 @@ else
   deps += chipmunk_dep
 endif
 
+deps += dependency('libffi', static:true)
+
 if host_machine.system() != 'emscripten'
   # Try to find system-installed enet first
   enet_dep = dependency('enet', static: true, required: false)
@@ -288,7 +273,7 @@ src += [
   'anim.c', 'config.c', 'datastream.c','font.c','HandmadeMath.c','jsffi.c','model.c',
   'render.c','simplex.c','spline.c', 'transform.c','cell.c',  'wildmatch.c',
   'sprite.c', 'rtree.c', 'qjs_nota.c', 'qjs_soloud.c', 'qjs_sdl.c', 'qjs_sdl_input.c', 'qjs_sdl_video.c', 'qjs_sdl_surface.c', 'qjs_math.c', 'qjs_geometry.c', 'qjs_transform.c', 'qjs_sprite.c', 'qjs_io.c', 'qjs_fd.c', 'qjs_os.c', 'qjs_actor.c',
-  'qjs_qr.c', 'qjs_wota.c', 'monocypher.c', 'qjs_blob.c', 'qjs_crypto.c', 'qjs_time.c', 'qjs_http.c', 'qjs_rtree.c', 'qjs_spline.c', 'qjs_js.c', 'qjs_debug.c', 'picohttpparser.c', 'qjs_miniz.c', 'qjs_num.c', 'timer.c', 'qjs_socket.c', 'qjs_kim.c', 'qjs_utf8.c', 'qjs_fit.c', 'qjs_text.c'
+  'qjs_qr.c', 'qjs_wota.c', 'monocypher.c', 'qjs_blob.c', 'qjs_crypto.c', 'qjs_time.c', 'qjs_http.c', 'qjs_rtree.c', 'qjs_spline.c', 'qjs_js.c', 'qjs_debug.c', 'picohttpparser.c', 'qjs_miniz.c', 'qjs_num.c', 'timer.c', 'qjs_socket.c', 'qjs_kim.c', 'qjs_utf8.c', 'qjs_fit.c', 'qjs_text.c', 'point.c', 'qjs_ffi.c'
 ]
 # quirc src
 src += [

prosperon/_sprite.cm

@@ -2,7 +2,7 @@ var graphics = use('graphics')
 var color = use('color')
 
 var sprite = {
-    image: undefined,
+    image: null,
     set color(x) { this._sprite.color = x; },
     get color() { return this._sprite.color; },
     anim_speed: 1,
@@ -12,7 +12,7 @@ var sprite = {
         return;
       }
     
-      if (typeof str === 'string') {
+      if (typeof str == 'string') {
         if (!this.animset[str])  {
           fn?.();
           return;
@@ -26,8 +26,8 @@ var sprite = {
 
       this.del_anim?.();
       this.del_anim = () => {
-        this.del_anim = undefined;
-        advance = undefined;
+        this.del_anim = null;
+        advance = null;
         stop?.();
       };
 
@@ -38,10 +38,10 @@ var sprite = {
       var done = false;
       if (reverse) {
         f = (((f - 1) % playing.frames.length) + playing.frames.length) % playing.frames.length;
-        if (f === playing.frames.length - 1) done = true;
+        if (f == playing.frames.length - 1) done = true;
       } else {
         f = (f + 1) % playing.frames.length;
-        if (f === 0) done = true;
+        if (f == 0) done = true;
       }
 
       this.image = playing.frames[f];
@@ -102,11 +102,11 @@ var sprite = {
   },
   garbage: function() {
     this.del_anim?.();
-    this.anim = undefined;
+    this.anim = null;
     tree.delete(this._sprite)
-    this.transform.parent = undefined
+    this.transform.parent = null
     for (var t of this.transform.children())
-      t.parent = undefined
+      t.parent = null
     delete this.transform.sprite      
     delete this._sprite
 //    log.console("CLEARED SPRITE")
@@ -216,7 +216,7 @@ sprite.to_queue = function(ysort = false)
   };
   var culled = sprite.tree.query(camrect)
   if (culled.length == 0) return [];
-  var cmd = graphics.make_sprite_queue(culled, prosperon.camera, undefined, 1);
+  var cmd = graphics.make_sprite_queue(culled, prosperon.camera, null, 1);
   return cmd;
 }
 

prosperon/clay.cm

@@ -11,18 +11,18 @@ var input = use('input')
 var lay_ctx = layout.make_context();
 
 var clay_base = {
-  font: undefined,
-  background_image: undefined,
+  font: null,
+  background_image: null,
   slice: 0,
   font: 'smalle.16',
-  font_size: undefined,
+  font_size: null,
   color: [1,1,1,1],
   spacing:0,
   padding:0,
   margin:0,
   offset:[0,0],
-  size:undefined,
-  background_color: undefined
+  size:null,
+  background_color: null
 };
 
 var root_item;
@@ -125,8 +125,8 @@ function add_item(config)
   // Adjust for child_gap
   if (root_config._childIndex > 0) {
     var parentContain = root_config.contain || 0;
-    var isVStack = (parentContain & layout.contain.column) !== 0;
-    var isHStack = (parentContain & layout.contain.row) !== 0;
+    var isVStack = (parentContain & layout.contain.column) != 0;
+    var isHStack = (parentContain & layout.contain.row) != 0;
 
     if (isVStack) {
       margin.t += childGap;
@@ -162,7 +162,7 @@ function add_item(config)
 
 function rectify_configs(config_array)
 {
-  if (config_array.length === 0)
+  if (config_array.length == 0)
     config_array = [{}];
 
   for (var i = config_array.length-1; i > 0; i--)
@@ -216,8 +216,8 @@ clay.button = function button(str, action, config = {})
   config.action = action;
 }
 
-var hovered = undefined;
-clay.newframe = function() { hovered = undefined; }
+var hovered = null;
+clay.newframe = function() { hovered = null; }
 
 // mousepos given in hud coordinates
 clay.draw_commands = function draw_commands(cmds, pos = [0,0], mousepos = prosperon.camera.screen2hud(input.mouse.screenpos()))

prosperon/color.cm

@@ -1,6 +1,6 @@
 function tohex(n) {
   var s = Math.floor(n).toString(16);
-  if (s.length === 1) s = "0" + s;
+  if (s.length == 1) s = "0" + s;
   return s.toUpperCase();
 };
 
@@ -98,14 +98,14 @@ Color.normalize = function (c) {
   };
 
   for (var p of Object.keys(c)) {
-    if (typeof c[p] !== "object") continue;
+    if (typeof c[p] != "object") continue;
     if (!Array.isArray(c[p])) {
       Color.normalize(c[p]);
       continue;
     }
 
     // Add alpha channel if not present
-    if (c[p].length === 3) {
+    if (c[p].length == 3) {
       c[p][3] = 1;
     }
 

prosperon/controller.cm

@@ -107,9 +107,9 @@ input.mouse.normal.doc = "Set the mouse to show again after hiding.";
 
 input.keyboard = {};
 input.keyboard.down = function (code) {
-  if (typeof code === "number") return downkeys[code];
-  if (typeof code === "string") return downkeys[code.toUpperCase().charCodeAt()] || downkeys[code.toLowerCase().charCodeAt()];
-  return undefined;
+  if (typeof code == "number") return downkeys[code];
+  if (typeof code == "string") return downkeys[code.toUpperCase().charCodeAt()] || downkeys[code.toLowerCase().charCodeAt()];
+  return null;
 };
 
 input.print_pawn_kbm = function (pawn) {
@@ -157,7 +157,7 @@ input.print_md_kbm = function print_md_kbm(pawn) {
 };
 
 input.has_bind = function (pawn, bind) {
-  return typeof pawn.inputs?.[bind] === "function";
+  return typeof pawn.inputs?.[bind] == "function";
 };
 
 input.action = {
@@ -176,17 +176,17 @@ input.tabcomplete = function tabcomplete(val, list) {
   if (!val) return val;
   list = filter(x => x.startsWith(val))
 
-  if (list.length === 1) {
+  if (list.length == 1) {
     return list[0];
   }
 
-  var ret = undefined;
+  var ret = null;
   var i = val.length;
-  while (!ret && list.length !== 0) {
+  while (!ret && list.length != 0) {
     var char = list[0][i];
     if (
       !list.every(function (x) {
-        return x[i] === char;
+        return x[i] == char;
       })
     )
       ret = list[0].slice(0, i);
@@ -213,7 +213,7 @@ var Player = {
 
   mouse_input(type, ...args) {
     for (var pawn of [...this.pawns].reverse()) {
-      if (typeof pawn.inputs?.mouse?.[type] === "function") {
+      if (typeof pawn.inputs?.mouse?.[type] == "function") {
         pawn.inputs.mouse[type].call(pawn, ...args);
         pawn.inputs.post?.call(pawn);
         if (!pawn.inputs.fallthru) return;
@@ -223,7 +223,7 @@ var Player = {
 
   char_input(c) {
     for (var pawn of [...this.pawns].reverse()) {
-      if (typeof pawn.inputs?.char === "function") {
+      if (typeof pawn.inputs?.char == "function") {
         pawn.inputs.char.call(pawn, c);
         pawn.inputs.post?.call(pawn);
         if (!pawn.inputs.fallthru) return;
@@ -270,16 +270,16 @@ var Player = {
           fn = inputs[cmd].released;
           break;
         case "down":
-          if (typeof inputs[cmd].down === "function") fn = inputs[cmd].down;
+          if (typeof inputs[cmd].down == "function") fn = inputs[cmd].down;
           else if (inputs[cmd].down) fn = inputs[cmd];
       }
 
       var consumed = false;
-      if (typeof fn === "function") {
+      if (typeof fn == "function") {
         fn.call(pawn, ...args);
         consumed = true;
       }
-      if (state === "released") inputs.release_post?.call(pawn);
+      if (state == "released") inputs.release_post?.call(pawn);
       if (inputs.block) return;
       if (consumed) return;
     }

prosperon/draw2d.cm

@@ -76,8 +76,8 @@ draw.point = function(pos, size, opt = {}, material) {
   })
 }
 
-draw.ellipse = function(pos, radii, def, material) {
-  var opt = def ? {...ellipse_def, ...def} : ellipse_def
+draw.ellipse = function(pos, radii, defl, material) {
+  var opt = defl ? {...ellipse_def, ...defl} : ellipse_def
   if (opt.thickness <= 0) opt.thickness = Math.max(radii[0], radii[1])
   
   add_command("draw_ellipse", {
@@ -88,9 +88,9 @@ draw.ellipse = function(pos, radii, def, material) {
   })
 }
 
-draw.line = function(points, def, material)
+draw.line = function(points, defl, material)
 {
-  var opt = def ? {...line_def, ...def} : line_def
+  var opt = defl ? {...line_def, ...defl} : line_def
     
   add_command("draw_line", {
     points: points,
@@ -99,24 +99,24 @@ draw.line = function(points, def, material)
   })
 }
 
-draw.cross = function render_cross(pos, size, def, material) {
+draw.cross = function render_cross(pos, size, defl, material) {
   var a = [pos.add([0, size]), pos.add([0, -size])]
   var b = [pos.add([size, 0]), pos.add([-size, 0])]
-  draw.line(a, def, material)
-  draw.line(b, def, material)
+  draw.line(a, defl, material)
+  draw.line(b, defl, material)
 }
 
-draw.arrow = function render_arrow(start, end, wingspan = 4, wingangle = 10, def, material) {
+draw.arrow = function render_arrow(start, end, wingspan = 4, wingangle = 10, defl, material) {
   var dir = math.norm(end.sub(start))
   var wing1 = [math.rotate(dir, wingangle).scale(wingspan).add(end), end]
   var wing2 = [math.rotate(dir, -wingangle).scale(wingspan).add(end), end]
-  draw.line([start, end], def, material)
-  draw.line(wing1, def, material)
-  draw.line(wing2, def, material)
+  draw.line([start, end], defl, material)
+  draw.line(wing1, defl, material)
+  draw.line(wing2, defl, material)
 }
 
-draw.rectangle = function render_rectangle(rect, def, material) {
-  var opt = def ? {...rect_def, ...def} : rect_def
+draw.rectangle = function render_rectangle(rect, defl, material) {
+  var opt = defl ? {...rect_def, ...defl} : rect_def
   
   add_command("draw_rect", {
     rect: rect,
@@ -154,8 +154,8 @@ draw.image = function image(image, rect, rotation, anchor, shear, info, material
   })
 }
 
-draw.circle = function render_circle(pos, radius, def, material) {
-  draw.ellipse(pos, [radius,radius], def, material)
+draw.circle = function render_circle(pos, radius, defl, material) {
+  draw.ellipse(pos, [radius,radius], defl, material)
 }
 
 draw.text = function text(text, pos, font = 'fonts/c64.ttf', size = 8, color = color.white, wrap = 0) {

prosperon/emitter.cm

@@ -111,7 +111,7 @@ ex.draw = function()
   if (!diff) throw new Error("emitter does not have a proper diffuse texture")
 
   var mesh = graphics.make_sprite_mesh(this.particles)
-  if (mesh.num_indices === 0) return
+  if (mesh.num_indices == 0) return
   render.queue({
     type:'geometry',
     mesh,

prosperon/examples/bunnymark/main.ce

@@ -66,5 +66,5 @@ this.hud = function() {
   draw.images(bunnyTex, bunnies)
 
   var msg = 'FPS: ' + fpsAvg.toFixed(2) + '   Bunnies: ' + bunnies.length
-  draw.text(msg, {x:0, y:0, width:config.width, height:40}, undefined, 0, color.white, 0)
+  draw.text(msg, {x:0, y:0, width:config.width, height:40}, null, 0, color.white, 0)
 }

prosperon/examples/chess/chess.ce

@@ -41,7 +41,7 @@ function updateTitle() {
       break;
     case 'connected':
       if (myColor) {
-        title += (mover.turn === myColor ? "Your turn (" + myColor + ")" : "Opponent's turn (" + mover.turn + ")");
+        title += (mover.turn == myColor ? "Your turn (" + myColor + ")" : "Opponent's turn (" + mover.turn + ")");
       } else {
         title += mover.turn + " turn";
       }
@@ -64,10 +64,10 @@ var opponentHoldingPiece = false;
 var opponentSelectPos = null;
 
 function handleMouseButtonDown(e) {
-  if (e.which !== 0) return;
+  if (e.which != 0) return;
   
   // Don't allow piece selection unless we have an opponent
-  if (gameState !== 'connected' || !opponent) return;
+  if (gameState != 'connected' || !opponent) return;
   
   var mx = e.mouse.x;
   var my = e.mouse.y;
@@ -76,7 +76,7 @@ function handleMouseButtonDown(e) {
   if (!grid.inBounds(c)) return;
   
   var cell = grid.at(c);
-  if (cell.length && cell[0].colour === mover.turn) {
+  if (cell.length && cell[0].colour == mover.turn) {
     selectPos = c;
     holdingPiece = true;
     // Send pickup notification to opponent
@@ -92,10 +92,10 @@ function handleMouseButtonDown(e) {
 }
 
 function handleMouseButtonUp(e) {
-  if (e.which !== 0 || !holdingPiece || !selectPos) return;
+  if (e.which != 0 || !holdingPiece || !selectPos) return;
   
   // Don't allow moves unless we have an opponent and it's our turn
-  if (gameState !== 'connected' || !opponent || !isMyTurn) {
+  if (gameState != 'connected' || !opponent || !isMyTurn) {
     holdingPiece = false;
     return;
   }
@@ -147,7 +147,7 @@ function handleMouseMotion(e) {
   hoverPos = c;
   
   // Send mouse position to opponent in real-time
-  if (opponent && gameState === 'connected') {
+  if (opponent && gameState == 'connected') {
     send(opponent, {
       type: 'mouse_move',
       pos: c,
@@ -159,11 +159,11 @@ function handleMouseMotion(e) {
 
 function handleKeyDown(e) {
   // S key - start server
-  if (e.scancode === 22 && gameState === 'waiting') { // S key
+  if (e.scancode == 22 && gameState == 'waiting') { // S key
     startServer();
   }
   // J key - join server  
-  else if (e.scancode === 13 && gameState === 'waiting') { // J key
+  else if (e.scancode == 13 && gameState == 'waiting') { // J key
     joinServer();
   }
 }
@@ -181,8 +181,8 @@ var opponentMouseColor = [1.0, 0.0, 0.0, 1.0]; // Red for opponent mouse
 function drawBoard() {
   for (var y = 0; y < 8; ++y)
     for (var x = 0; x < 8; ++x) {
-      var isMyHover = hoverPos && hoverPos[0] === x && hoverPos[1] === y;
-      var isOpponentHover = opponentMousePos && opponentMousePos[0] === x && opponentMousePos[1] === y;
+      var isMyHover = hoverPos && hoverPos[0] == x && hoverPos[1] == y;
+      var isOpponentHover = opponentMousePos && opponentMousePos[0] == x && opponentMousePos[1] == y;
       var isValidMove = selectPos && holdingPiece && isValidMoveForTurn(selectPos, [x, y]);
       
       var color = ((x+y)&1) ? dark : light;
@@ -211,7 +211,7 @@ function isValidMoveForTurn(from, to) {
   
   // Check if the destination has a piece of the same color
   var destCell = grid.at(to);
-  if (destCell.length && destCell[0].colour === piece.colour) {
+  if (destCell.length && destCell[0].colour == piece.colour) {
     return false;
   }
   
@@ -225,15 +225,15 @@ function drawPieces() {
     
     // Skip drawing the piece being held (by me or opponent)
     if (holdingPiece && selectPos && 
-        piece.coord[0] === selectPos[0] && 
-        piece.coord[1] === selectPos[1]) {
+        piece.coord[0] == selectPos[0] && 
+        piece.coord[1] == selectPos[1]) {
       return;
     }
     
     // Skip drawing the piece being held by opponent
     if (opponentHoldingPiece && opponentSelectPos && 
-        piece.coord[0] === opponentSelectPos[0] && 
-        piece.coord[1] === opponentSelectPos[1]) {
+        piece.coord[0] == opponentSelectPos[0] && 
+        piece.coord[1] == opponentSelectPos[1]) {
       return;
     }
 
@@ -329,10 +329,10 @@ $_.receiver(e => {
     send(e, update(e.dt))
   else if (e.kind == 'draw')
     send(e, draw())
-  else if (e.type === 'game_start' || e.type === 'move' || e.type === 'greet')
+  else if (e.type == 'game_start' || e.type == 'move' || e.type == 'greet')
     log.console("Receiver got message:", e.type, e);
   
-  if (e.type === 'greet') {
+  if (e.type == 'greet') {
     log.console("Server received greet from client");
     // Store the client's actor object for ongoing communication
     opponent = e.client_actor;
@@ -348,13 +348,13 @@ $_.receiver(e => {
     });
     log.console("game_start message sent to client");
   }
-  else if (e.type === 'game_start') {
+  else if (e.type == 'game_start') {
     log.console("Game starting, I am:", e.your_color);
     myColor = e.your_color;
-    isMyTurn = (myColor === 'white');
+    isMyTurn = (myColor == 'white');
     gameState = 'connected';
     updateTitle();
-  } else if (e.type === 'move') {
+  } else if (e.type == 'move') {
     log.console("Received move from opponent:", e.from, "to", e.to);
     // Apply opponent's move
     var fromCell = grid.at(e.from);
@@ -370,26 +370,26 @@ $_.receiver(e => {
     } else {
       log.console("No piece found at from position");
     }
-  } else if (e.type === 'mouse_move') {
+  } else if (e.type == 'mouse_move') {
     // Update opponent's mouse position
     opponentMousePos = e.pos;
     opponentHoldingPiece = e.holding;
     opponentSelectPos = e.selectPos;
-  } else if (e.type === 'piece_pickup') {
+  } else if (e.type == 'piece_pickup') {
     // Opponent picked up a piece
     opponentSelectPos = e.pos;
     opponentHoldingPiece = true;
-  } else if (e.type === 'piece_drop') {
+  } else if (e.type == 'piece_drop') {
     // Opponent dropped their piece
     opponentHoldingPiece = false;
     opponentSelectPos = null;
-  } else if (e.type === 'mouse_button_down') {
+  } else if (e.type == 'mouse_button_down') {
     handleMouseButtonDown(e)
-  } else if (e.type === 'mouse_button_up') {
+  } else if (e.type == 'mouse_button_up') {
     handleMouseButtonUp(e)
-  } else if (e.type === 'mouse_motion') {
+  } else if (e.type == 'mouse_motion') {
     handleMouseMotion(e)
-  } else if (e.type === 'key_down') {
+  } else if (e.type == 'key_down') {
     handleKeyDown(e)
   }
 })

prosperon/examples/chess/grid.cm

@@ -1,57 +1,69 @@
-var CELLS = Symbol()
-
-var key = function key(x,y) { return `${x},${y}` }
-
-function grid(w, h)
-{
-  this[CELLS] = new Map()
-  this.width = w;
+function grid(w, h) {
+  this.width  = w;
   this.height = h;
+  // create a height×width array of empty lists
+  this.cells = new Array(h);
+  for (let y = 0; y < h; y++) {
+    this.cells[y] = new Array(w);
+    for (let x = 0; x < w; x++) {
+      this.cells[y][x] = [];     // each cell holds its own list
+    }
+  }
 }
 
 grid.prototype = {
-  cell(x,y) {
-    var k = key(x,y)
-    if (!this[CELLS].has(k)) this[CELLS].set(k,[])
-    return this[CELLS].get(k)
+  // return the array at (x,y)
+  cell(x, y) {
+    return this.cells[y][x];
   },
-  
+
+  // alias for cell
+  at(pos) {
+    return this.cell(pos.x, pos.y);
+  },
+
+  // add an entity into a cell
   add(entity, pos) {
     this.cell(pos.x, pos.y).push(entity);
     entity.coord = pos.slice();
   },
-  
-  remove(entity, pos) {
-    var c = this.cell(pos.x, pos.y);
-    c.splice(c.indexOf(entity), 1);
-  },
-  
-  at(pos) {
-    return this.cell(pos.x, pos.y);
-  },
-  
-  inBounds(pos) {
-    return pos.x >= 0 && pos.x < this.width && pos.y >= 0 && pos.y < this.height;
-  },
-  
-  each(fn) {
-    for (var [k, list] of this[CELLS])
-      for (var p of list) fn(p, p.coord);
-  },
-  
-  toString() {
-    var out = `grid [${this.width}x${this.height}]
-`
-    for (var y = 0; y < this.height; y++) {
-      for (var x = 0; x < this.width; x++) {
-        var cell = this.at([x,y]);
-        out += cell.length
-      }
-      if (y !== this.height - 1) out += "\n"
-    }
-      
-    return out
-  },
-}
 
-return grid
+  // remove an entity from a cell
+  remove(entity, pos) {
+    const c = this.cell(pos.x, pos.y);
+    const i = c.indexOf(entity);
+    if (i !== -1) c.splice(i, 1);
+  },
+
+  // bounds check
+  inBounds(pos) {
+    return (
+      pos.x >= 0 && pos.x < this.width &&
+      pos.y >= 0 && pos.y < this.height
+    );
+  },
+
+  // call fn(entity, coord) for every entity in every cell
+  each(fn) {
+    for (let y = 0; y < this.height; y++) {
+      for (let x = 0; x < this.width; x++) {
+        const list = this.cells[y][x];
+        for (let entity of list) {
+          fn(entity, entity.coord);
+        }
+      }
+    }
+  },
+
+  // printable representation
+  toString() {
+    let out = `grid [${this.width}×${this.height}]\n`;
+    for (let y = 0; y < this.height; y++) {
+      for (let x = 0; x < this.width; x++) {
+        out += this.cells[y][x].length;
+      }
+      if (y !== this.height - 1) out += "\n";
+    }
+    return out;
+  }
+};

prosperon/examples/chess/movement.cm

@@ -5,17 +5,17 @@ var MovementSystem = function(grid, rules) {
 }
 
 MovementSystem.prototype.tryMove = function (piece, to) {
-  if (piece.colour !== this.turn) return false;
+  if (piece.colour != this.turn) return false;
 
   // normalise ‘to’ into our hybrid coord
-  var dest = [to.x !== undefined ? to.x : to[0],
-              to.y !== undefined ? to.y : to[1]];
+  var dest = [to.x ?? t[0],
+              to.y ?? to[1]];
 
   if (!this.grid.inBounds(dest)) return false;
   if (!this.rules.canMove(piece, piece.coord, dest, this.grid)) return false;
 
   var victims = this.grid.at(dest);
-  if (victims.length && victims[0].colour === piece.colour) return false;
+  if (victims.length && victims[0].colour == piece.colour) return false;
   if (victims.length) victims[0].captured = true;
 
   this.grid.remove(piece, piece.coord);
@@ -25,7 +25,7 @@ MovementSystem.prototype.tryMove = function (piece, to) {
   piece.coord.x = dest.x;
   piece.coord.y = dest.y;
 
-  this.turn = (this.turn === 'white') ? 'black' : 'white';
+  this.turn = (this.turn == 'white') ? 'black' : 'white';
   return true;
 };
 

prosperon/examples/chess/rules.cm

@@ -1,32 +1,32 @@
 /* helper – robust coord access */
-function cx(c) { return (c.x !== undefined) ? c.x : c[0]; }
-function cy(c) { return (c.y !== undefined) ? c.y : c[1]; }
+function cx(c) { return c.x ?? c[0] }
+function cy(c) { return c.y ?? c[1] }
 
 /* simple move-shape checks */
 var deltas = {
   pawn: function (pc, dx, dy, grid, to) {
-    var dir  = (pc.colour === 'white') ? -1 : 1;
-    var base = (pc.colour === 'white') ? 6  : 1;
-    var one  = (dy === dir && dx === 0 && grid.at(to).length === 0);
-    var two  = (dy === 2 * dir && dx === 0 && cy(pc.coord) === base &&
-               grid.at({ x: cx(pc.coord), y: cy(pc.coord)+dir }).length === 0 &&
-               grid.at(to).length === 0);
-    var cap  = (dy === dir && Math.abs(dx) === 1 && grid.at(to).length);
+    var dir  = (pc.colour == 'white') ? -1 : 1;
+    var base = (pc.colour == 'white') ? 6  : 1;
+    var one  = (dy == dir && dx == 0 && grid.at(to).length == 0);
+    var two  = (dy == 2 * dir && dx == 0 && cy(pc.coord) == base &&
+               grid.at({ x: cx(pc.coord), y: cy(pc.coord)+dir }).length == 0 &&
+               grid.at(to).length == 0);
+    var cap  = (dy == dir && Math.abs(dx) == 1 && grid.at(to).length);
     return one || two || cap;
   },
-  rook  : function (pc, dx, dy) { return (dx === 0 || dy === 0); },
-  bishop: function (pc, dx, dy) { return Math.abs(dx) === Math.abs(dy); },
-  queen : function (pc, dx, dy) { return (dx === 0 || dy === 0 || Math.abs(dx) === Math.abs(dy)); },
-  knight: function (pc, dx, dy) { return (Math.abs(dx) === 1 && Math.abs(dy) === 2) ||
-                                         (Math.abs(dx) === 2 && Math.abs(dy) === 1); },
-  king  : function (pc, dx, dy) { return Math.max(Math.abs(dx), Math.abs(dy)) === 1; }
+  rook  : function (pc, dx, dy) { return (dx == 0 || dy == 0); },
+  bishop: function (pc, dx, dy) { return Math.abs(dx) == Math.abs(dy); },
+  queen : function (pc, dx, dy) { return (dx == 0 || dy == 0 || Math.abs(dx) == Math.abs(dy)); },
+  knight: function (pc, dx, dy) { return (Math.abs(dx) == 1 && Math.abs(dy) == 2) ||
+                                         (Math.abs(dx) == 2 && Math.abs(dy) == 1); },
+  king  : function (pc, dx, dy) { return Math.max(Math.abs(dx), Math.abs(dy)) == 1; }
 };
 
 function clearLine(from, to, grid) {
   var dx = Math.sign(cx(to) - cx(from));
   var dy = Math.sign(cy(to) - cy(from));
   var x  = cx(from) + dx, y = cy(from) + dy;
-  while (x !== cx(to) || y !== cy(to)) {
+  while (x != cx(to) || y != cy(to)) {
     if (grid.at({ x: x, y: y }).length) return false;
     x += dx; y += dy;
   }
@@ -38,7 +38,7 @@ function canMove(piece, from, to, grid) {
   var dy = cy(to) - cy(from);
   var f  = deltas[piece.kind];
   if (!f || !f(piece, dx, dy, grid, to)) return false;
-  if (piece.kind === 'knight') return true;
+  if (piece.kind == 'knight') return true;
   return clearLine(from, to, grid);
 }
 

prosperon/examples/pong/main.ce

@@ -82,5 +82,5 @@ this.hud = function() {
 
   // Simple score display
   var msg = score1 + "   " + score2
-  draw.text(msg, {x:0, y:10, width:config.width, height:40}, undefined, 0, color.white, 0)
+  draw.text(msg, {x:0, y:10, width:config.width, height:40}, null, 0, color.white, 0)
 }

prosperon/examples/snake/main.ce

@@ -36,7 +36,7 @@ function spawnApple() {
   apple = {x:Math.floor(Math.random()*gridW), y:Math.floor(Math.random()*gridH)}
   // Re-spawn if apple lands on snake
   for (var i=0; i<snake.length; i++)
-    if (snake[i].x === apple.x && snake[i].y === apple.y) { spawnApple(); return }
+    if (snake[i].x == apple.x && snake[i].y == apple.y) { spawnApple(); return }
 }
 
 function wrap(pos) {
@@ -49,7 +49,7 @@ function wrap(pos) {
 resetGame()
 
 this.update = function(dt) {
-  if (gameState !== "playing") return
+  if (gameState != "playing") return
   moveTimer += dt
   if (moveTimer < moveInterval) return
   moveTimer -= moveInterval
@@ -63,7 +63,7 @@ this.update = function(dt) {
 
   // Check collision with body
   for (var i=0; i<snake.length; i++) {
-    if (snake[i].x === head.x && snake[i].y === head.y) {
+    if (snake[i].x == head.x && snake[i].y == head.y) {
       gameState = "gameover"
       return
     }
@@ -73,7 +73,7 @@ this.update = function(dt) {
   snake.unshift(head)
 
   // Eat apple?
-  if (head.x === apple.x && head.y === apple.y) spawnApple()
+  if (head.x == apple.x && head.y == apple.y) spawnApple()
   else snake.pop()
 }
 
@@ -90,9 +90,9 @@ this.hud = function() {
   // Draw apple
   draw.rectangle({x:apple.x*cellSize, y:apple.y*cellSize, width:cellSize, height:cellSize}, color.red)
 
-  if (gameState === "gameover") {
+  if (gameState == "gameover") {
     var msg = "GAME OVER! Press SPACE to restart."
-    draw.text(msg, {x:0, y:config.height*0.5-10, width:config.width, height:20}, undefined, 0, color.white)
+    draw.text(msg, {x:0, y:config.height*0.5-10, width:config.width, height:20}, null, 0, color.white)
   }
 }
 
@@ -100,19 +100,19 @@ this.hud = function() {
 // "Up" means y=1, so going physically up on screen
 this.inputs = {
   up: function() {
-    if (direction.y !== -1) nextDirection = {x:0,y:1}
+    if (direction.y != -1) nextDirection = {x:0,y:1}
   },
   down: function() {
-    if (direction.y !== 1) nextDirection = {x:0,y:-1}
+    if (direction.y != 1) nextDirection = {x:0,y:-1}
   },
   left: function() {
-    if (direction.x !== 1) nextDirection = {x:-1,y:0}
+    if (direction.x != 1) nextDirection = {x:-1,y:0}
   },
   right: function() {
-    if (direction.x !== -1) nextDirection = {x:1,y:0}
+    if (direction.x != -1) nextDirection = {x:1,y:0}
   },
   space: function() {
-    if (gameState==="gameover") resetGame()
+    if (gameState=="gameover") resetGame()
   }
 }
 

prosperon/examples/steam_example.ce

@@ -128,7 +128,7 @@ function end_game(score) {
   update_stat(STATS.TOTAL_SCORE, total_score, false);
   
   // Check for achievements
-  if (games_played === 1) {
+  if (games_played == 1) {
     unlock_achievement(ACHIEVEMENTS.FIRST_WIN);
   }
   

prosperon/examples/tetris/main.ce

@@ -128,10 +128,10 @@ function clearLines() {
     }
   }
   // Score
-  if (lines===1) score += 100
-  else if (lines===2) score += 300
-  else if (lines===3) score += 500
-  else if (lines===4) score += 800
+  if (lines==1) score += 100
+  else if (lines==2) score += 300
+  else if (lines==3) score += 500
+  else if (lines==4) score += 800
   linesCleared += lines
   level = Math.floor(linesCleared/10)
 }
@@ -153,7 +153,7 @@ spawnPiece()
 this.update = function(dt) {
   if (gameOver) return
 
-  // ========== Horizontal Movement Gate ==========
+  // ======= Horizontal Movement Gate =======
   var leftPressed = input.keyboard.down('a')
   var rightPressed = input.keyboard.down('d')
   var horizontalMove = 0
@@ -191,7 +191,7 @@ this.update = function(dt) {
   hMoveTimer -= dt
   prevLeft = leftPressed
   prevRight = rightPressed
-  // ========== End Horizontal Movement Gate ==========
+  // ======= End Horizontal Movement Gate =======
 
   // Rotate with W (once per press, no spinning)
   if (input.keyboard.down('w')) {
@@ -249,7 +249,7 @@ this.hud = function() {
   }
 
   // Next piece window
-  draw.text("Next", {x:70, y:5, width:50, height:10}, undefined, 0, color.white)
+  draw.text("Next", {x:70, y:5, width:50, height:10}, null, 0, color.white)
   if (nextPiece) {
     for (var i=0; i<nextPiece.blocks.length; i++) {
       var nx = nextPiece.blocks[i][0]
@@ -262,10 +262,10 @@ this.hud = function() {
 
   // Score & Level
   var info = "Score: " + score + "\nLines: " + linesCleared + "\nLevel: " + level
-  draw.text(info, {x:70, y:30, width:90, height:50}, undefined, 0, color.white)
+  draw.text(info, {x:70, y:30, width:90, height:50}, null, 0, color.white)
 
   if (gameOver) {
-    draw.text("GAME OVER", {x:10, y:config.height*0.5-5, width:config.width-20, height:20}, undefined, 0, color.red)
+    draw.text("GAME OVER", {x:10, y:config.height*0.5-5, width:config.width-20, height:20}, null, 0, color.red)
   }
 }
 

prosperon/geometry.cm

@@ -46,9 +46,9 @@ geometry.sphere.volume[cell.DOC] = `
 `
 
 geometry.sphere.random = function (r, theta = [0, 1], phi = [-0.5, 0.5]) {
-  if (typeof r === "number") r = [r, r]
-  if (typeof theta === "number") theta = [theta, theta]
-  if (typeof phi === "number") phi = [phi, phi]
+  if (typeof r == "number") r = [r, r]
+  if (typeof theta == "number") theta = [theta, theta]
+  if (typeof phi == "number") phi = [phi, phi]
 
   var ra = Math.random_range(r[0], r[1])
   var ta = Math.turn2rad(Math.random_range(theta[0], theta[1]))

prosperon/graphics.cm

@@ -18,13 +18,13 @@ var CPU = Symbol()
 var LASTUSE = Symbol()
 var LOADING = Symbol()
 
-var cache = new Map()
+var cache = {}
 
 // Image constructor function
 graphics.Image = function(surfaceData) {
   // Initialize private properties
-  this[CPU] = surfaceData || undefined;
-  this[GPU] = undefined;
+  this[CPU] = surfaceData || null;
+  this[GPU] = null;
   this[LOADING] = false;
   this[LASTUSE] = time.number();
   this.rect = {x:0, y:0, width:surfaceData.width, height:surfaceData.height};
@@ -89,11 +89,11 @@ Object.defineProperties(graphics.Image.prototype, {
 
 // Add methods to prototype
 graphics.Image.prototype.unload_gpu = function() {
-  this[GPU] = undefined
+  this[GPU] = null
 }
 
 graphics.Image.prototype.unload_cpu = function() {
-  this[CPU] = undefined
+  this[CPU] = null
 }
 
 function calc_image_size(img) {
@@ -123,7 +123,7 @@ function make_handle(obj)
 }
 
 function wrapSurface(surf, maybeRect){
-  const h = make_handle(surf);
+  def h = make_handle(surf);
   if(maybeRect) h.rect = maybeRect;  /* honour frame sub-rect */
   return h;
 }
@@ -150,7 +150,7 @@ function decode_image(bytes, ext)
 
 function create_image(path){
   try{
-    const bytes = io.slurpbytes(path);
+    def bytes = io.slurpbytes(path);
 
     let raw     = decode_image(bytes, path.ext());
     
@@ -169,8 +169,8 @@ function create_image(path){
       return makeAnim( wrapFrames(raw.frames), !!raw.loop );
 
     /* ── Case D: ASE helpers returned { animName:{frames,loop}, … } ── */
-    const anims = {};
-    for(const [name, anim] of Object.entries(raw)){
+    def anims = {};
+    for(def [name, anim] of Object.entries(raw)){
       if(anim && Array.isArray(anim.frames))
         anims[name] = makeAnim( wrapFrames(anim.frames), !!anim.loop );
       else if(anim && anim.surface)          /* ase with flat surface */
@@ -219,7 +219,7 @@ graphics.is_image[cell.DOC] = `
 
 graphics.texture_from_data = function(data)
 {
-  if (!(data instanceof ArrayBuffer)) return undefined
+  if (!(data instanceof ArrayBuffer)) return null
   
   var image = graphics.make_texture(data);
   var img = make_handle(image)
@@ -236,7 +236,7 @@ graphics.from_surface = function(id, surf)
 
 graphics.from = function(id, data)
 {
-  if (typeof id !== 'string')
+  if (typeof id != 'string')
     throw new Error('Expected a string ID')
     
   if (data instanceof ArrayBuffer)
@@ -246,18 +246,18 @@ graphics.from = function(id, data)
 graphics.texture = function texture(path) {
   if (path instanceof graphics.Image) return path
   
-  if (typeof path !== 'string')
+  if (typeof path != 'string')
     throw new Error('need a string for graphics.texture')
 
   var id = path //.split(':')[0]
-  if (cache.has(id)) return cache.get(id)
+  if (cache[id]) return cache[id]
   
   var ipath = res.find_image(id)
   if (!ipath)
     throw new Error(`unknown image ${id}`)
   
   var image = create_image(ipath)
-  cache.set(id, image)
+  cache[id] = image
   return image
 }
 graphics.texture[cell.DOC] = `
@@ -365,8 +365,8 @@ Load a font from file if not cached, or retrieve from cache if already loaded.
 `
 
 graphics.queue_sprite_mesh = function(queue) {
-  var sprites = queue.filter(x => x.type === 'sprite')
-  if (sprites.length === 0) return []
+  var sprites = queue.filter(x => x.type == 'sprite')
+  if (sprites.length == 0) return []
   var mesh = graphics.make_sprite_mesh(sprites)
   for (var i = 0; i < sprites.length; i++) {
     sprites[i].mesh = mesh

prosperon/imgui.cm

@@ -17,7 +17,7 @@ function imtoggle(name, obj, field) {
   var changed = false;
   var old = obj[field];
   obj[field] = imgui.checkbox(name, obj[field]);
-  if (old !== obj[field]) return true;
+  if (old != obj[field]) return true;
   return false;
 };
 
@@ -32,7 +32,7 @@ if (render_menu) {
   if (debug.console)
     debug.console = imgui.window("console", _ => {
       imgui.text(log.transcript);
-      replstr = imgui.textinput(undefined, replstr);
+      replstr = imgui.textinput(null, replstr);
       imgui.button("submit", _ => {
         eval(replstr);
         replstr = "";
@@ -242,14 +242,14 @@ imgui.imagebutton[cell.DOC] = `Create an ImageButton widget which displays a tex
 imgui.textinput[cell.DOC] = `Show a single-line text input widget.
 
 :param label: The label text next to the input box.
-:param text: The current text. If undefined, the box starts empty.
+:param text: The current text. If null, the box starts empty.
 :return: The updated text string after user editing.
 `;
 
 imgui.textbox[cell.DOC] = `Show a multi-line text input widget.
 
 :param label: The label text next to the input box.
-:param text: The current multi-line text. If undefined, starts empty.
+:param text: The current multi-line text. If null, starts empty.
 :return: The updated text after user editing.
 `;
 

prosperon/prosperon.ce

@@ -19,7 +19,7 @@ var video
 var cnf = use('accio/config')
 
 $_.start(e => {
-  if (e.type !== 'greet') return
+  if (e.type != 'greet') return
   video = e.actor
   graphics = use('graphics', video)
   send(video, {kind:"window", op:"makeRenderer"}, e => {
@@ -36,16 +36,16 @@ var geometry = use('geometry')
 
 function updateCameraMatrix(camera, winW, winH) {
   // world→NDC
-  const sx = 1 / camera.size[0];
-  const sy = 1 / camera.size[1];
-  const ox = camera.pos[0] - camera.size[0] * camera.anchor[0];
-  const oy = camera.pos[1] - camera.size[1] * camera.anchor[1];
+  def sx = 1 / camera.size[0];
+  def sy = 1 / camera.size[1];
+  def ox = camera.pos[0] - camera.size[0] * camera.anchor[0];
+  def oy = camera.pos[1] - camera.size[1] * camera.anchor[1];
 
   // NDC→pixels
-  const vx = camera.viewport.x * winW;
-  const vy = camera.viewport.y * winH;
-  const vw = camera.viewport.width  * winW;
-  const vh = camera.viewport.height * winH;
+  def vx = camera.viewport.x * winW;
+  def vy = camera.viewport.y * winH;
+  def vw = camera.viewport.width  * winW;
+  def vh = camera.viewport.height * winH;
 
   // final “mat” coefficients
   //   [ a   0   c ]
@@ -82,14 +82,14 @@ function screenToWorldPoint(pos, camera) {
 //---- rectangle (two corner) ----
 function worldToScreenRect(rect, camera) {
   // map bottom-left and top-right
-  const x1 = camera.a * rect.x                  + camera.c;
-  const y1 = camera.e * rect.y                  + camera.f;
-  const x2 = camera.a * (rect.x + rect.width)   + camera.c;
-  const y2 = camera.e * (rect.y + rect.height)  + camera.f;
+  def x1 = camera.a * rect.x                  + camera.c;
+  def y1 = camera.e * rect.y                  + camera.f;
+  def x2 = camera.a * (rect.x + rect.width)   + camera.c;
+  def y2 = camera.e * (rect.y + rect.height)  + camera.f;
 
   // pick mins and abs deltas
-  const x0 = x1 < x2 ? x1 : x2;
-  const y0 = y1 < y2 ? y1 : y2;
+  def x0 = x1 < x2 ? x1 : x2;
+  def y0 = y1 < y2 ? y1 : y2;
   return {
     x:      x0,
     y:      y0,
@@ -108,7 +108,7 @@ var camera = {
   ortho:true,
   anchor:[0.5,0.5],//{x:0.5,y:0.5},
   rotation:[0,0,0,1],
-  surface: undefined
+  surface: null
 }
 
 var util = use('util')
@@ -145,15 +145,15 @@ function translate_draw_commands(commands) {
         // Handle rectangles with optional rounding and thickness
         if (cmd.opt && cmd.opt.radius && cmd.opt.radius > 0) {
           // Rounded rectangle
-          var thickness = (cmd.opt.thickness === 0) ? 0 : (cmd.opt.thickness || 1)
+          var thickness = (cmd.opt.thickness == 0) ? 0 : (cmd.opt.thickness || 1)
           var raster_result = rasterize.round_rect(cmd.rect, cmd.opt.radius, thickness)
           
-          if (raster_result.type === 'rect') {
+          if (raster_result.type == 'rect') {
             renderer_commands.push({
               op: "fillRect",
               data: {rect: raster_result.data}
             })
-          } else if (raster_result.type === 'rects') {
+          } else if (raster_result.type == 'rects') {
             raster_result.data.forEach(function(rect) {
               renderer_commands.push({
                 op: "fillRect",
@@ -165,12 +165,12 @@ function translate_draw_commands(commands) {
           // Outlined rectangle
           var raster_result = rasterize.outline_rect(cmd.rect, cmd.opt.thickness)
           
-          if (raster_result.type === 'rect') {
+          if (raster_result.type == 'rect') {
             renderer_commands.push({
               op: "fillRect",
               data: {rect: raster_result.data}
             })
-          } else if (raster_result.type === 'rects') {
+          } else if (raster_result.type == 'rects') {
             renderer_commands.push({
               op: "rects",
               data: {rects: raster_result.data}
@@ -191,12 +191,12 @@ function translate_draw_commands(commands) {
         var radii = cmd.radii || [cmd.radius, cmd.radius]
         var raster_result = rasterize.ellipse(cmd.pos, radii, cmd.opt || {})
         
-        if (raster_result.type === 'points') {
+        if (raster_result.type == 'points') {
           renderer_commands.push({
             op: "point",
             data: {points: raster_result.data}
           })
-        } else if (raster_result.type === 'rects') {
+        } else if (raster_result.type == 'rects') {
           // Use 'rects' operation for multiple rectangles
           renderer_commands.push({
             op: "rects",
@@ -260,6 +260,7 @@ function translate_draw_commands(commands) {
           return graphics.texture(tile)
         })
         var geom = geometry.tilemap_to_data(cmd.tilemap)
+        if (!texid) break
         if (texid.gpu)
           geom.texture_id = texid.gpu.id
 
@@ -277,13 +278,13 @@ function translate_draw_commands(commands) {
 var parseq = use('parseq', $_.delay)
 
 // Wrap `send(actor,msg,cb)` into a parseq “requestor”
-//  • on success:   cb(data)        → value=data, reason=undefined
-//  • on failure:   cb(undefined,err)
+//  • on success:   cb(data)        → value=data, reason=null
+//  • on failure:   cb(null,err)
 function rpc_req(actor, msg) {
   return (cb, _) => {
     send(actor, msg, data => {
       if (data.error)
-        cb(undefined, data)
+        cb(null, data)
       else
         cb(data)
     })
@@ -311,7 +312,7 @@ var input_state = {
 function poll_input() {
   send(video, {kind:'input', op:'get'}, evs => {
     for (var ev of evs) {
-      if (ev.type === 'quit')
+      if (ev.type == 'quit')
         $_.stop()
         
       if (ev.type.includes('mouse')) {
@@ -335,7 +336,7 @@ function poll_input() {
 
 // 2) helper to build & send a batch, then call done()
 function create_batch(draw_cmds, done) {
-  const batch = [
+  def batch = [
     {op:'set',    prop:'drawColor', value:[0.1,0.1,0.15,1]},
     {op:'clear'}
   ]
@@ -349,8 +350,8 @@ function create_batch(draw_cmds, done) {
   )
 
   send(video, {kind:'renderer', op:'batch', data:batch}, () => {
-    const now = time.number()
-    const dt = now - last_time
+    def now = time.number()
+    def dt = now - last_time
     last_time = now
 
     frames.push(dt)
@@ -376,7 +377,7 @@ function start_pipeline() {
 
 function render_step() {
   // a) fire off the next update→draw immediately
-  const dt = time.number() - last_time
+  def dt = time.number() - last_time
   send(gameactor, {kind:'update', dt:1/60}, () =>
     send(gameactor, {kind:'draw'}, cmds => pending_next = cmds)
   )
@@ -390,8 +391,8 @@ function render_step() {
     }
 
     // d) schedule the next render step
-    const render_dur = time.number() - last_time
-    const wait = Math.max(0, 1/60 - ttr)
+    def render_dur = time.number() - last_time
+    def wait = Math.max(0, 1/60 - ttr)
     $_.delay(render_step, 0)
   })
 }

prosperon/rasterize.cm

@@ -35,7 +35,7 @@ rasterize.ellipse = function ellipse(pos, radii, opt) {
       ry_i = ry - thickness
   var hole = (rx_i > 0 && ry_i > 0)
 
-  if (!hole && thickness === 1) {
+  if (!hole && thickness == 1) {
     var points = []
     var rx_sq = rx * rx, ry_sq = ry * ry
     var two_rx_sq = rx_sq << 1, two_ry_sq = ry_sq << 1
@@ -82,9 +82,9 @@ rasterize.ellipse = function ellipse(pos, radii, opt) {
       if (hole && Math.abs(dx) <= x_in) { run_start = null; continue }
       if (!within_wedge(dx, dy, start, end, full_circle)) { run_start = null; continue }
 
-      if (run_start === null) run_start = cx + dx
+      if (run_start == null) run_start = cx + dx
 
-      var last = (dx === x_out)
+      var last = (dx == x_out)
       var next_in_ring =
         !last &&
         !(hole && Math.abs(dx+1) <= x_in) &&

prosperon/resources.cm

@@ -2,12 +2,12 @@ var io = use('io')
 
 Object.defineProperty(Function.prototype, "hashify", {
   value: function () {
-    var hash = new Map()
+    var hash = {}
     var fn = this
     function hashified(...args) {
       var key = args[0]
-      if (!hash.has(key)) hash.set(key, fn(...args))
-      return hash.get(key)
+      if (hash[key] == null) hash[key] = fn(...args)
+      return hash[key]
     }
     return hashified
   },
@@ -41,12 +41,12 @@ function isRecognizedExtension(ext) {
 }
 
 function find_in_path(filename, exts = []) {
-  if (typeof filename !== 'string') return undefined
+  if (typeof filename != 'string') return null
   
   if (filename.includes('.')) {
     var candidate = filename // possibly need "/" ?
     if (io.exists(candidate) && !io.is_directory(candidate)) return candidate
-    return undefined
+    return null
   }
 
   // Only check extensions if exts is provided and not empty
@@ -60,7 +60,7 @@ function find_in_path(filename, exts = []) {
     var candidate = filename
     if (io.exists(candidate) && !io.is_directory(candidate)) return candidate
   }
-  return undefined
+  return null
 }
 
 // Return a canonical path (the real directory plus the path)

prosperon/scenetree.cm

@@ -16,8 +16,8 @@ function add_timer(obj, fn, seconds) {
   var stop = function () {
     if (!timer) return
     timers.delete(stop)
-    timer.fn = undefined
-    timer = undefined
+    timer.fn = null
+    timer = null
   }
 
   function execute() {
@@ -45,7 +45,7 @@ globalThis.Register = {
     var fns = []
 
     n.register = function (fn, oname) {
-      if (typeof fn !== 'function') return
+      if (typeof fn != 'function') return
 
       var dofn = function (...args) {
         fn(...args)
@@ -59,7 +59,7 @@ globalThis.Register = {
 
       while (left <= right) {
         var mid = Math.floor((left + right) / 2)
-        if (fns[mid] === dofn.layer) {
+        if (fns[mid] == dofn.layer) {
           left = mid
           break
         } else if (fns[mid].layer < dofn.layer) left = mid + 1
@@ -93,7 +93,7 @@ globalThis.Register = {
 Register.pull_registers = function pull_registers(obj) {
   var reggies = []
   for (var reg in Register.registries) {
-    if (typeof obj[reg] === "function")
+    if (typeof obj[reg] == "function")
       reggies.push(reg)
   }
   return reggies
@@ -115,7 +115,7 @@ Register.check_registers = function check_registers(obj) {
     return
   }
   for (var reg in Register.registries) {
-    if (typeof obj[reg] === "function")
+    if (typeof obj[reg] == "function")
       Register.register_obj(obj,reg)
   }
 }
@@ -203,9 +203,9 @@ actor.spawn = function spawn(script, config, actor_context) {
     prog.prog_fn.call(underling, actor_dollar)
   } catch(e) { throw e; }
 
-  if (underling[DEAD]) return undefined;
+  if (underling[DEAD]) return null;
 
-  if (typeof config === 'object') Object.assign(underling, config)
+  if (typeof config == 'object') Object.assign(underling, config)
 
   if (!underling[REGGIES])
     underling.__proto__[REGGIES] = Register.pull_registers(underling)
@@ -238,8 +238,8 @@ actor.kill = function kill() {
   this[OVERLING][UNDERLINGS].delete(this)
   delete this[UNDERLINGS]
 
-  if (typeof this.garbage === "function") this.garbage()
-  if (typeof this.then === "function") this.then()
+  if (typeof this.garbage == "function") this.garbage()
+  if (typeof this.then == "function") this.then()
 
   act.tag_clear_guid(this)
 }
@@ -264,7 +264,7 @@ function eachobj(obj, fn) {
   var val = fn(obj)
   if (val) return val
   for (var o in obj.objects) {
-    if (obj.objects[o] === obj) log.error(`Object ${obj.toString()} is referenced by itself.`)
+    if (obj.objects[o] == obj) log.error(`Object ${obj.toString()} is referenced by itself.`)
     val = eachobj(obj.objects[o], fn)
     if (val) return val
   }
@@ -276,7 +276,7 @@ ex.all_objects = function (fn, startobj = world) {
 ex.all_objects[cell.DOC] = `
 :param fn: A callback function that receives each object. If it returns a truthy value, iteration stops and that value is returned.
 :param startobj: The root object at which iteration begins, default is the global "world".
-:return: The first truthy value returned by fn, or undefined if none.
+:return: The first truthy value returned by fn, or null if none.
 Iterate over each object (and its sub-objects) in the hierarchy, calling fn for each one. 
 `
 
@@ -379,10 +379,10 @@ var script_fn = function script_fn(path, args) {
     // Create a context object with args
     var context = Object.create(parsed.module_ret)
     context.__args__ = args || []
-    var mod_script = `(function setup_${module_name}_module(){ var self = this; var $ = this; var exports = {}; var module = {exports: exports}; var define = undefined; var arg = this.__args__; ${parsed.module}})`
+    var mod_script = `(function setup_${module_name}_module(){ var self = this; var $ = this; var exports = {}; var module = {exports: exports}; var define = null; var arg = this.__args__; ${parsed.module}})`
     var module_fn = js.eval(file, mod_script)
     parsed.module_ret = module_fn.call(context)
-    if (parsed.module_ret === undefined || parsed.module_ret === null)
+    if (parsed.module_ret == null || parsed.module_ret == null)
       throw new Error(`Module ${module_name} must return a value`)
     parsed.module_fn = module_fn
   }

prosperon/sdl_gpu.cm

@@ -138,14 +138,14 @@ function get_pipeline_ubo_slot(pipeline, name) {
     if (ubo.name.endsWith(name))
       return i;
   }
-  return undefined;
+  return null;
 }
 
 get_pipeline_ubo_slot[cell.DOC] = `Return the index of a uniform buffer block within the pipeline's vertex reflection data by name suffix.
 
 :param pipeline: The pipeline whose vertex reflection is inspected.
 :param name: A string suffix to match against the uniform buffer block name.
-:return: The integer index of the matching UBO, or undefined if not found.
+:return: The integer index of the matching UBO, or null if not found.
 `
 
 function transpose4x4(val) {
@@ -181,7 +181,7 @@ function ubo_obj_to_array(pipeline, name, obj) {
     var val = obj[mem.name];
     if (!val) throw new Error (`Could not find ${mem.name} on supplied object`);
 
-    if (mem.name === 'model')
+    if (mem.name == 'model')
       val = transpose4x4(val.array());
       
     for (var i = 0; i < val.length; i++)
@@ -226,9 +226,9 @@ var shader_times = {};
 function make_pipeline(pipeline) {
   if (pipeline.hasOwnProperty("gpu")) return; // this pipeline has already been made
 
-  if (typeof pipeline.vertex === 'string')
+  if (typeof pipeline.vertex == 'string')
     pipeline.vertex = make_shader(pipeline.vertex);
-  if (typeof pipeline.fragment === 'string')
+  if (typeof pipeline.fragment == 'string')
     pipeline.fragment = make_shader(pipeline.fragment)
     
   // 1) Reflection data for vertex shader
@@ -309,7 +309,7 @@ function make_shader(sh_file) {
     num_textures: 0,
     num_storage_buffers: refl.separate_storage_buffers ? refl.separate_storage_buffers.length : 0,
     num_uniform_buffers: refl.ubos ? refl.ubos.length : 0,
-    entrypoint: shader_type === "msl" ? "main0" : "main"
+    entrypoint: shader_type == "msl" ? "main0" : "main"
   }
 
   shader.gpu = context.make_shader(shader)
@@ -349,7 +349,7 @@ var std_sampler = {
 function upload_model(model) {
   var bufs = [];
   for (var i in model) {
-    if (typeof model[i] !== 'object') continue;
+    if (typeof model[i] != 'object') continue;
     bufs.push(model[i]);
   }
   context.upload(this, bufs);
@@ -405,7 +405,7 @@ bind_mat[cell.DOC] = `Bind the material images and samplers needed by the pipeli
 `
 
 function group_sprites_by_texture(sprites, mesh) {
-  if (sprites.length === 0) return;
+  if (sprites.length == 0) return;
   for (var i = 0; i < sprites.length; i++) {
     sprites[i].mesh = mesh;
     sprites[i].first_index = i*6;
@@ -418,7 +418,7 @@ function group_sprites_by_texture(sprites, mesh) {
   var group = {image:sprites[0].image, first_index:0};
   var count = 1;
   for (var i = 1; i < sprites.length; i++) {
-    if (sprites[i].image === group.image) {
+    if (sprites[i].image == group.image) {
       count++;
       continue;
     }
@@ -495,7 +495,7 @@ function render_camera(cmds, camera) {
 
   buffers = buffers.concat(graphics.queue_sprite_mesh(hud_queue));
   for (var q of hud_queue)
-    if (q.type === 'geometry') buffers = buffers.concat([q.mesh.pos, q.mesh.color, q.mesh.uv, q.mesh.indices]);
+    if (q.type == 'geometry') buffers = buffers.concat([q.mesh.pos, q.mesh.color, q.mesh.uv, q.mesh.indices]);
 
   full_upload(buffers)
 
@@ -505,11 +505,11 @@ function render_camera(cmds, camera) {
   bind_pipeline(pass,pipeline);
 
   var camslot = get_pipeline_ubo_slot(pipeline, 'TransformBuffer');
-  if (typeof camslot !== 'undefined')
+  if (camslot != null)
     cmds.camera(camera, camslot);
 
   modelslot = get_pipeline_ubo_slot(pipeline, "model");
-  if (typeof modelslot !== 'undefined') {
+  if (modelslot != null) {
     var ubo = ubo_obj_to_array(pipeline, 'model', sprite_model_ubo); 
     cmds.push_vertex_uniform_data(modelslot, ubo);
   }
@@ -537,7 +537,7 @@ function render_camera(cmds, camera) {
 
   cmds.push_debug_group("hud")
   var camslot = get_pipeline_ubo_slot(pipeline, 'TransformBuffer');
-  if (typeof camslot !== 'undefined')
+  if (camslot != null)
     cmds.hud(camera.size, camslot);
   
   for (var group of hud_queue) {
@@ -651,7 +651,7 @@ var stencil_invert = {
 };
 
 function mask(image, pos, scale, rotation = 0, ref = 1) {
-  if (typeof image === 'string')
+  if (typeof image == 'string')
     image = graphics.texture(image);
 
   var tex = image.texture;
@@ -661,7 +661,7 @@ function mask(image, pos, scale, rotation = 0, ref = 1) {
   var pipe = stencil_writer(ref);
   render.use_shader('sprite.cg', pipe);
   var t = new transform;
-  t.trs(pos, undefined, scale);
+  t.trs(pos, null, scale);
   set_model(t);
   render.use_mat({
     diffuse:image.texture,

prosperon/sdl_video.ce

@@ -17,8 +17,8 @@ var default_window = {
   height: 480,
   
   // Position - can be numbers or "centered"
-  x: undefined,  // SDL_WINDOWPOS_UNDEFINED by default
-  y: undefined,  // SDL_WINDOWPOS_UNDEFINED by default
+  x: null,  // SDL_WINDOWPOS_null by default
+  y: null,  // SDL_WINDOWPOS_null by default
   
   // Window behavior flags
   resizable: true,
@@ -52,7 +52,7 @@ var default_window = {
   metal: false,        // Force Metal context (macOS)
   
   // Advanced properties
-  parent: undefined,   // Parent window for tooltips/popups/modal
+  parent: null,   // Parent window for tooltips/popups/modal
   modal: false,        // Modal to parent window (requires parent)
   externalGraphicsContext: false,  // Use external graphics context
   
@@ -129,7 +129,7 @@ function handle_window(msg) {
   switch (msg.op) {
     case 'destroy':
       win.destroy();
-      win = undefined
+      win = null
       return {success: true};
       
     case 'show':
@@ -145,7 +145,7 @@ function handle_window(msg) {
       if (!prop) return {error: "Missing property name"};
       
       // Handle special cases
-      if (prop === 'surface') {
+      if (prop == 'surface') {
         var surf = win.surface;
         if (!surf) return {data: null};
         var surf_id = allocate_id();
@@ -157,12 +157,12 @@ function handle_window(msg) {
       
     case 'set':
       var prop = msg.data ? msg.data.property : null;
-      var value = msg.data ? msg.data.value : undefined;
+      var value = msg.data ? msg.data.value : null;
       if (!prop) return {error: "Missing property name"};
       
       // Validate property is settable
       var readonly = ['id', 'pixelDensity', 'displayScale', 'sizeInPixels', 'flags', 'surface'];
-      if (readonly.indexOf(prop) !== -1) {
+      if (readonly.indexOf(prop) != -1) {
         return {error: "Property '" + prop + "' is read-only"};
       }
       
@@ -220,7 +220,7 @@ function handle_window(msg) {
 // Renderer operation functions
 var renderfuncs = {
   destroy: function(msg) {
-    ren = undefined
+    ren = null
     return {success: true};
   },
   
@@ -244,9 +244,9 @@ var renderfuncs = {
     if (!prop) return {error: "Missing property name"};
     
     // Handle special getters that might return objects
-    if (prop === 'drawColor') {
+    if (prop == 'drawColor') {
       var color = ren[prop];
-      if (color && typeof color === 'object') {
+      if (color && typeof color == 'object') {
         // Convert color object to array format [r,g,b,a]
         return {data: [color.r || 0, color.g || 0, color.b || 0, color.a || 255]};
       }
@@ -264,12 +264,12 @@ var renderfuncs = {
     
     // Validate property is settable
     var readonly = ['window', 'name', 'outputSize', 'currentOutputSize', 'logicalPresentationRect', 'safeArea'];
-    if (readonly.indexOf(prop) !== -1) {
+    if (readonly.indexOf(prop) != -1) {
       return {error: "Property '" + prop + "' is read-only"};
     }
     
     // Special handling for render target
-    if (prop === 'target' && value !== null && value !== undefined) {
+    if (prop == 'target' && value != null && value != null) {
       var tex = resources.texture[value];
       if (!tex) return {error: "Invalid texture id"};
       value = tex;
@@ -468,7 +468,7 @@ function handle_renderer(msg) {
 // Texture operations
 function handle_texture(msg) {
   // Special case: create needs a renderer
-  if (msg.op === 'create') {
+  if (msg.op == 'create') {
     if (!msg.data) return {error: "Missing texture data"};
     var ren_id = msg.data.renderer_id;
     if (!ren_id || !resources.renderer[ren_id]) return {error: "Invalid renderer id"};
@@ -522,12 +522,12 @@ function handle_texture(msg) {
       
     case 'set':
       var prop = msg.data ? msg.data.property : null;
-      var value = msg.data ? msg.data.value : undefined;
+      var value = msg.data ? msg.data.value : null;
       if (!prop) return {error: "Missing property name"};
       
       // Validate property is settable
       var readonly = ['size', 'width', 'height'];
-      if (readonly.indexOf(prop) !== -1) {
+      if (readonly.indexOf(prop) != -1) {
         return {error: "Property '" + prop + "' is read-only"};
       }
       
@@ -616,12 +616,12 @@ function handle_mouse(msg) {
   
   switch (msg.op) {
     case 'show':
-      if (msg.data === undefined) return {error: "Missing show parameter"};
+      if (msg.data == null) return {error: "Missing show parameter"};
       mouse.show(msg.data);
       return {success: true};
       
     case 'capture':
-      if (msg.data === undefined) return {error: "Missing capture parameter"};
+      if (msg.data == null) return {error: "Missing capture parameter"};
       mouse.capture(msg.data);
       return {success: true};
       
@@ -655,7 +655,7 @@ function handle_mouse(msg) {
       if (!cursor) return {data: null};
       // Find or create cursor ID
       for (var id in resources.cursor) {
-        if (resources.cursor[id] === cursor) {
+        if (resources.cursor[id] == cursor) {
           return {data: id};
         }
       }
@@ -669,7 +669,7 @@ function handle_mouse(msg) {
       if (!cursor) return {data: null};
       // Find or create cursor ID
       for (var id in resources.cursor) {
-        if (resources.cursor[id] === cursor) {
+        if (resources.cursor[id] == cursor) {
           return {data: id};
         }
       }
@@ -679,7 +679,7 @@ function handle_mouse(msg) {
       return {data: cursor_id};
       
     case 'create_system_cursor':
-      if (msg.data === undefined) return {error: "Missing cursor type"};
+      if (msg.data == null) return {error: "Missing cursor type"};
       var cursor = mouse.create_system_cursor(msg.data);
       var cursor_id = allocate_id();
       resources.cursor[cursor_id] = cursor;
@@ -690,7 +690,7 @@ function handle_mouse(msg) {
       if (!window) return {data: null};
       // Find window ID
       for (var id in resources.window) {
-        if (resources.window[id] === window) {
+        if (resources.window[id] == window) {
           return {data: id};
         }
       }
@@ -717,7 +717,7 @@ function handle_keyboard(msg) {
       if (!window) return {data: null};
       // Find window ID
       for (var id in resources.window) {
-        if (resources.window[id] === window) {
+        if (resources.window[id] == window) {
           return {data: id};
         }
       }

prosperon/sound.cm

@@ -34,7 +34,7 @@ audio.cry = function cry(file) {
   if (!voice) return;
   return function() {
     voice.stop();
-    voice = undefined;
+    voice = null;
   }
 };
 audio.cry[doc.sym] =

prosperon/tests/animation.ce

@@ -1,6 +1,6 @@
 /* anim.js – drop this at top of your script or in a module */
 var Anim = (() => {
-  const DEFAULT_MIN = 1 / 60;           /* 16 ms – one frame */
+  def DEFAULT_MIN = 1 / 60;           /* 16 ms – one frame */
 
   function play(source, loop=true){
     return {
@@ -13,9 +13,9 @@ var Anim = (() => {
 
   function update(a, dt){
     a.timer += dt;
-    const frames = a.src.frames;
+    def frames = a.src.frames;
     while(true){
-      const time = Math.max(frames[a.idx].time || 0, Anim.minDelay);
+      def time = Math.max(frames[a.idx].time || 0, Anim.minDelay);
       if(a.timer < time) break;        /* still on current frame */
 
       a.timer -= time;
@@ -29,7 +29,7 @@ var Anim = (() => {
   }
 
   function current(a){ return a.src.frames[a.idx].image; }
-  function updateAll(arr, dt){ for(const a of arr) update(a, dt); }
+  function updateAll(arr, dt){ for(def a of arr) update(a, dt); }
   function draw(a, pos, opt, pipe){
     draw2d.image(current(a), pos, 0, [0,0], [0,0], opt, pipe);
   }
@@ -53,17 +53,17 @@ var camera = {
   fov:50,
   near_z: 0,
   far_z: 1000,
-  surface: undefined,
+  surface: null,
   viewport: {x:0,y:0,width:1,height:1},
   ortho:true,
   anchor:[0,0],
 }
 
 /* ── load animations ───────────────────── */
-const crab    = gfx.texture('tests/crab');        // gif → Animation
-const warrior = gfx.texture('tests/warrior');     // ase → {Original:Animation}
+def crab    = gfx.texture('tests/crab');        // gif → Animation
+def warrior = gfx.texture('tests/warrior');     // ase → {Original:Animation}
 
-const anims = [
+def anims = [
   Anim.play(crab),             // crab.frames
   Anim.play(warrior.Run)  // warrior.Original.frames
 ];
@@ -76,8 +76,8 @@ Anim.minDelay = 1 / 100;          // 10 ms, feel free to tune later
 let last = os.now();
 
 function loop(){
-  const now = os.now();
-  const dt  = now - last;         // real frame time
+  def now = os.now();
+  def dt  = now - last;         // real frame time
   last = now;
 
   Anim.updateAll(anims, dt);

prosperon/tests/bunnymark.ce

@@ -18,7 +18,7 @@ var camera = {
   fov:50,
   near_z: 0,
   far_z: 1000,
-  surface: undefined,
+  surface: null,
   viewport: {x:0,y:0,width:1,height:1},
   ortho:true,
   anchor:[0,0],

prosperon/tests/camera.ce

@@ -19,7 +19,7 @@ var camera = {
   fov:50,
   near_z: 0,
   far_z: 1000,
-  surface: undefined,
+  surface: null,
   viewport: {x:0,y:0,width:1,height:1},
   ortho:true,
   anchor:[0.5,0.5],
@@ -31,7 +31,7 @@ var hudcam = {
   fov:50,
   near_z: 0,
   far_z: 1000,
-  surface: undefined,
+  surface: null,
   viewport: {x:0,y:0,width:1,height:1},
   ortho:true,
   anchor:[0,0],

prosperon/tests/camera_colorspace.ce

@@ -4,7 +4,7 @@ var json = use('json');
 
 // Get list of cameras
 var cameras = camera.list();
-if (cameras.length === 0) {
+if (cameras.length == 0) {
   log.console("No cameras found!");
   $_. stop();
 }

prosperon/tests/camera_colorspace_convert.ce

@@ -5,7 +5,7 @@ var json = use('json');
 
 // Get first camera
 var cameras = camera.list();
-if (cameras.length === 0) {
+if (cameras.length == 0) {
   log.console("No cameras found!");
   $_.stop();
 }
@@ -30,10 +30,10 @@ log.console("  Colorspace:", format.colorspace);
 // Handle camera approval
 var approved = false;
 $_.receiver(e => {
-  if (e.type === 'camera_device_approved') {
+  if (e.type == 'camera_device_approved') {
     log.console("\nCamera approved!");
     approved = true;
-  } else if (e.type === 'camera_device_denied') {
+  } else if (e.type == 'camera_device_denied') {
     log.error("Camera access denied!");
     $_.stop();
   }
@@ -63,7 +63,7 @@ function capture_test() {
   log.console("\nTesting colorspace conversions:");
   
   // Convert to sRGB if not already
-  if (format.colorspace !== "srgb") {
+  if (format.colorspace != "srgb") {
     try {
       var srgb_surf = surf.convert(surf.format, "srgb");
       log.console("  Converted to sRGB colorspace");
@@ -89,7 +89,7 @@ function capture_test() {
   }
   
   // If YUV format, try BT.709 (HD video standard)
-  if (surf.format.indexOf("yuv") !== -1 || surf.format.indexOf("yuy") !== -1) {
+  if (surf.format.indexOf("yuv") != -1 || surf.format.indexOf("yuy") != -1) {
     try {
       var hd_surf = surf.convert(surf.format, "bt709_limited");
       log.console("  Converted to BT.709 limited (HD video standard)");

prosperon/tests/camera_info.ce

@@ -41,7 +41,7 @@ if (cameras.length > 0) {
   // Try to find a 640x480 format
   var preferred_format = null;
   for (var i = 0; i < formats.length; i++) {
-    if (formats[i].width === 640 && formats[i].height === 480) {
+    if (formats[i].width == 640 && formats[i].height == 480) {
       preferred_format = formats[i];
       break;
     }

prosperon/tests/webcam.ce

@@ -20,10 +20,10 @@ var webcam_texture = null;
 
 // Handle camera events
 $_.receiver(e => {
-  if (e.type === 'camera_device_approved' && e.which === cam_id) {
+  if (e.type == 'camera_device_approved' && e.which == cam_id) {
     log.console("Camera approved!");
     cam_approved = true;
-  } else if (e.type === 'camera_device_denied' && e.which === cam_id) {
+  } else if (e.type == 'camera_device_denied' && e.which == cam_id) {
     log.error("Camera access denied!");
     $_.stop();
   }
@@ -67,7 +67,7 @@ send(video_actor, {
     
     // List available cameras
     var cameras = camera.list();
-    if (cameras.length === 0) {
+    if (cameras.length == 0) {
       log.error("No cameras found!");
       log.console(json.encode(cameras))
       $_.stop();
@@ -89,10 +89,10 @@ send(video_actor, {
     // Look for a 640x480 format with preferred colorspace
     var preferred_format = null;
     for (var i = 0; i < formats.length; i++) {
-      if (formats[i].width === 640 && formats[i].height === 480) {
+      if (formats[i].width == 640 && formats[i].height == 480) {
         preferred_format = formats[i];
         // Prefer JPEG or sRGB colorspace if available
-        if (formats[i].colorspace === "jpeg" || formats[i].colorspace === "srgb") {
+        if (formats[i].colorspace == "jpeg" || formats[i].colorspace == "srgb") {
           break;
         }
       }

prosperon/tests/window.ce

@@ -49,7 +49,7 @@ send(ioguy, {
 })
 
 $_.receiver(e => {
-  if (e.type === 'quit')
+  if (e.type == 'quit')
     os.exit()
   else
     log.console(json.encode(e))

prosperon/tilemap.cm

@@ -14,12 +14,12 @@ tilemap.for = function (map, fn) {
   for (var x = 0; x < map.tiles.length; x++) {
     if (!map.tiles[x]) continue;
     for (var y = 0; y < map.tiles[x].length; y++) {
-      if (map.tiles[x][y] !== undefined) {
+      if (map.tiles[x][y] != null) {
         var result = fn(map.tiles[x][y], {
           x: x + map.offset_x,
           y: y + map.offset_y
         });
-        if (result !== undefined) {
+        if (result != null) {
           map.tiles[x][y] = result;
         }
       }
@@ -32,7 +32,7 @@ tilemap.prototype =
   at(pos) {
     var x = pos.x - this.offset_x;
     var y = pos.y - this.offset_y;
-    if (!this.tiles[x]) return undefined;
+    if (!this.tiles[x]) return null;
     return this.tiles[x][y];
   },
   
@@ -51,7 +51,7 @@ tilemap.prototype =
       for (var i = 0; i < this.tiles.length; i++) {
         if (!this.tiles[i]) this.tiles[i] = [];
         var new_col = [];
-        for (var j = 0; j < shift; j++) new_col[j] = undefined;
+        for (var j = 0; j < shift; j++) new_col[j] = null;
         this.tiles[i] = new_col.concat(this.tiles[i]);
       }
       this.offset_y = pos.y;

prosperon/tween.cm

@@ -43,15 +43,15 @@ Ease.quint = make_easing_fns(5)
 
 Ease.expo = {
   in(t) {
-    return t === 0 ? 0 : Math.pow(2, 10 * t - 10)
+    return t == 0 ? 0 : Math.pow(2, 10 * t - 10)
   },
   out(t) {
-    return t === 1 ? 1 : 1 - Math.pow(2, -10 * t)
+    return t == 1 ? 1 : 1 - Math.pow(2, -10 * t)
   },
   inout(t) {
-    return t === 0
+    return t == 0
       ? 0
-      : t === 1
+      : t == 1
       ? 1
       : t < 0.5
       ? Math.pow(2, 20 * t - 10) / 2
@@ -93,26 +93,26 @@ Ease.sine = {
 
 Ease.elastic = {
   in(t) {
-    return t === 0
+    return t == 0
       ? 0
-      : t === 1
+      : t == 1
       ? 1
       : -Math.pow(2, 10 * t - 10) *
           Math.sin((t * 10 - 10.75) * this.c4)
   },
   out(t) {
-    return t === 0
+    return t == 0
       ? 0
-      : t === 1
+      : t == 1
       ? 1
       : Math.pow(2, -10 * t) *
           Math.sin((t * 10 - 0.75) * this.c4) +
           1
   },
   inout(t) {
-    t === 0
+    t == 0
       ? 0
-      : t === 1
+      : t == 1
       ? 1
       : t < 0.5
       ? -(Math.pow(2, 20 * t - 10) * Math.sin((20 * t - 11.125) * this.c5)) / 2
@@ -128,10 +128,10 @@ var tween = function (from, to, time, fn, cb) {
 
   function cleanup() {
     stop()
-    fn = undefined
-    stop = undefined
-    cb = undefined
-    update = undefined
+    fn = null
+    stop = null
+    cb = null
+    update = null
   }
 
   var update = function tween_update(dt) {
@@ -159,8 +159,8 @@ var Tween = {
     var defn = Object.create(this.default)
     Object.assign(defn, options)
 
-    if (defn.loop === "circle") tvals.push(tvals[0])
-    else if (defn.loop === "yoyo") {
+    if (defn.loop == "circle") tvals.push(tvals[0])
+    else if (defn.loop == "yoyo") {
       for (var i = tvals.length - 2; i >= 0; i--) tvals.push(tvals[i])
     }
 
@@ -170,15 +170,15 @@ var Tween = {
 
     defn.fn = function (dt) {
       defn.accum += dt
-      if (defn.accum >= defn.time && defn.loop === "hold") {
-        if (typeof target === "string") obj[target] = tvals[tvals.length - 1]
+      if (defn.accum >= defn.time && defn.loop == "hold") {
+        if (typeof target == "string") obj[target] = tvals[tvals.length - 1]
         else target(tvals[tvals.length - 1])
         defn.pause()
         defn.cb.call(obj)
         return
       }
       defn.pct = (defn.accum % defn.time) / defn.time
-      if (defn.loop === "none" && defn.accum >= defn.time) defn.stop()
+      if (defn.loop == "none" && defn.accum >= defn.time) defn.stop()
 
       var t = defn.whole ? defn.ease(defn.pct) : defn.pct
       var nval = t / slicelen
@@ -186,7 +186,7 @@ var Tween = {
       nval -= i
       if (!defn.whole) nval = defn.ease(nval)
 
-      if (typeof target === "string") obj[target] = tvals[i].lerp(tvals[i + 1], nval)
+      if (typeof target == "string") obj[target] = tvals[i].lerp(tvals[i + 1], nval)
       else target(tvals[i].lerp(tvals[i + 1], nval))
     }
 
@@ -199,7 +199,7 @@ var Tween = {
     }
     defn.restart = function () {
       defn.accum = 0
-      if (typeof target === "string") obj[target] = tvals[0]
+      if (typeof target == "string") obj[target] = tvals[0]
       else target(tvals[0])
     }
     defn.stop = function () {

scripts/base.cm

@@ -1,30 +1,16 @@
 Object.mixin = function (target, source) {
-  if (typeof source !== "object") return target;
+  if (typeof source != "object") return target;
   Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
   return target;
 };
 
-Object.mixin[cell.DOC] = `Copy all property descriptors from 'source' into 'target'.
-  
-:param target: The object that will receive properties.
-:param source: The object whose properties are to be copied.
-:return: The updated 'target' object.
-`;
-
 Object.defineProperty(Object.prototype, "mixin", {
   value: function mixin(obj) {
-    if (typeof obj === "string") obj = use(obj);
+    if (typeof obj == "string") obj = use(obj);
     if (obj) Object.mixin(this, obj);
   },
 });
 
-(Object.prototype.mixin)[cell.DOC] = `Mix properties from 'obj' into the current object. If 'obj' is a string,
-it first calls 'use(obj)' to retrieve the object. 
-
-:param obj: The object (or string reference to an object) to mix in.
-:return: None
-`;
-
 /* STRING DEFS */
 Object.defineProperty(String.prototype, "rm", {
   value: function (index, endidx = index + 1) {
@@ -32,28 +18,14 @@ Object.defineProperty(String.prototype, "rm", {
   },
 });
 
-(String.prototype.rm)[cell.DOC] = `Remove characters from this string between 'index' (inclusive)
-and 'endidx' (exclusive). If 'endidx' is omitted, it defaults to 'index + 1'.
-
-:param index: The starting index to remove.
-:param endidx: The ending index (exclusive).
-:return: A new string with the specified characters removed.
-`;
-
 Object.defineProperty(String.prototype, "tolast", {
   value: function (val) {
     var idx = this.lastIndexOf(val);
-    if (idx === -1) return this.slice();
+    if (idx == -1) return this.slice();
     return this.slice(0, idx);
   },
 });
 
-(String.prototype.tolast)[cell.DOC] = `Return the substring of this string up to the last occurrence of 'val'. 
-If 'val' is not found, the entire string is returned.
-
-:param val: The substring to locate from the end.
-:return: A substring up to the last occurrence of 'val'.
-`;
 
 Object.defineProperty(String.prototype, "dir", {
   value: function () {
@@ -62,11 +34,6 @@ Object.defineProperty(String.prototype, "dir", {
   },
 });
 
-(String.prototype.dir)[cell.DOC] = `Return everything before the last slash ('/') in the string.
-If no slash is found, return an empty string.
-
-:return: The directory portion of the path.
-`;
 
 Object.defineProperty(String.prototype, "next", {
   value: function (char, from) {
@@ -75,7 +42,7 @@ Object.defineProperty(String.prototype, "next", {
     else if (!from) from = 0;
 
     var find = this.slice(from).search(char[0]);
-    if (find === -1) return -1;
+    if (find == -1) return -1;
     else return from + find;
 
     var i = 0;
@@ -89,14 +56,6 @@ Object.defineProperty(String.prototype, "next", {
   },
 });
 
-(String.prototype.next)[cell.DOC] = `Search for the next occurrence of 'char' in this string, starting at 'from'.
-If 'char' is an array, any of those characters qualifies. Return the matching index,
-or -1 if none is found.
-
-:param char: A character (or array of characters) to locate.
-:param from: The index to start from.
-:return: The index of the next occurrence, or -1 if not found.
-`;
 
 Object.defineProperty(String.prototype, "prev", {
   value: function (char, from, count = 0) {
@@ -110,20 +69,11 @@ Object.defineProperty(String.prototype, "prev", {
       count--;
     }
 
-    if (find === -1) return 0;
+    if (find == -1) return 0;
     else return find;
   },
 });
 
-(String.prototype.prev)[cell.DOC] = `Search for the previous occurrence of 'char' before index 'from'. 
-If 'count' is greater than 1, skip multiple occurrences going backward. 
-Return the found index or 0 if not found.
-
-:param char: The character to locate.
-:param from: The index to start from (defaults to the end of the string).
-:param count: How many occurrences to skip backward (default 0).
-:return: The index of the previous occurrence, or 0 if not found.
-`;
 
 Object.defineProperty(String.prototype, "strip_ext", {
   value: function () {
@@ -131,11 +81,6 @@ Object.defineProperty(String.prototype, "strip_ext", {
   },
 });
 
-(String.prototype.strip_ext)[cell.DOC] = `Return the string up to (but not including) the last '.' character.
-If '.' is not found, the entire string is returned.
-
-:return: The string without its last extension.
-`;
 
 Object.defineProperty(String.prototype, "ext", {
   value: function () {
@@ -143,11 +88,6 @@ Object.defineProperty(String.prototype, "ext", {
   },
 });
 
-(String.prototype.ext)[cell.DOC] = `Return the substring after the last '.' in this string.
-If '.' is not found, return an empty string.
-
-:return: The file extension or an empty string.
-`;
 
 Object.defineProperty(String.prototype, "up_path", {
   value: function () {
@@ -158,70 +98,42 @@ Object.defineProperty(String.prototype, "up_path", {
   },
 });
 
-(String.prototype.up_path)[cell.DOC] = `Go up one directory level from the current path, preserving the file name at the end. 
-
-:return: A new path string one directory up, with the base filename preserved.
-`;
 
 Object.defineProperty(String.prototype, "fromlast", {
   value: function (val) {
     var idx = this.lastIndexOf(val);
-    if (idx === -1) return "";
+    if (idx == -1) return "";
     return this.slice(idx + 1);
   },
 });
 
-(String.prototype.fromlast)[cell.DOC] = `Return the substring that appears after the last occurrence of 'val'.
-If 'val' is not found, an empty string is returned.
-
-:param val: The substring to locate.
-:return: The substring after the last occurrence of 'val'.
-`;
 
 Object.defineProperty(String.prototype, "tofirst", {
   value: function (val) {
     var idx = this.indexOf(val);
-    if (idx === -1) return this.slice();
+    if (idx == -1) return this.slice();
     return this.slice(0, idx);
   },
 });
 
-(String.prototype.tofirst)[cell.DOC] = `Return the substring from the start of this string up to the first occurrence
-of 'val' (excluded). If 'val' is not found, the entire string is returned.
-
-:param val: The substring to locate.
-:return: A substring up to the first occurrence of 'val'.
-`;
 
 Object.defineProperty(String.prototype, "fromfirst", {
   value: function (val) {
     var idx = this.indexOf(val);
-    if (idx === -1) return this;
+    if (idx == -1) return this;
     return this.slice(idx + val.length);
   },
 });
 
-(String.prototype.fromfirst)[cell.DOC] = `Return the substring after the first occurrence of 'val'. 
-If 'val' is not found, the entire string is returned.
-
-:param val: The substring to locate.
-:return: The substring after 'val', or the entire string if 'val' not found.
-`;
 
 Object.defineProperty(String.prototype, "name", {
   value: function () {
     var idx = this.indexOf("/");
-    if (idx === -1) return this.tolast(".");
+    if (idx == -1) return this.tolast(".");
     return this.fromlast("/").tolast(".");
   },
 });
 
-(String.prototype.name)[cell.DOC] = `Return the "name" portion of the path without extension.
-If no slash is found, it's up to the last '.' in the entire string. 
-If there is a slash, it's from the last slash up to (but not including) the last '.'.
-
-:return: The name portion of the path without extension.
-`;
 
 Object.defineProperty(String.prototype, "set_name", {
   value: function (name) {
@@ -230,12 +142,6 @@ Object.defineProperty(String.prototype, "set_name", {
   },
 });
 
-(String.prototype.set_name)[cell.DOC] = `Set the base name (excluding extension) of the path to 'name', preserving
-the original directory and extension.
-
-:param name: The new name to use.
-:return: A new path string with the updated name.
-`;
 
 Object.defineProperty(String.prototype, "base", {
   value: function () {
@@ -243,25 +149,15 @@ Object.defineProperty(String.prototype, "base", {
   },
 });
 
-(String.prototype.base)[cell.DOC] = `Return the portion of this string after the last '/' character. 
-If no '/' is present, the entire string is returned.
-
-:return: The base name of the path.
-`;
 
 Object.defineProperty(String.prototype, "updir", {
   value: function () {
-    if (this.lastIndexOf("/") === this.length - 1) return this.slice(0, this.length - 1);
+    if (this.lastIndexOf("/") == this.length - 1) return this.slice(0, this.length - 1);
     var dir = (this + "/").dir();
     return dir.dir();
   },
 });
 
-(String.prototype.updir)[cell.DOC] = `Go up one directory from the current path, removing the last directory name.
-If the path ends with a slash, remove it first. Then remove the final directory.
-
-:return: A new string representing one directory level up.
-`;
 
 /* ARRAY DEFS */
 Object.defineProperty(Array.prototype, "filter!", {
@@ -276,28 +172,15 @@ Object.defineProperty(Array.prototype, "filter!", {
   },
 });
 
-(Array.prototype["filter!"])[cell.DOC] = `Perform an in-place filter of this array using the provided callback 'fn'. 
-Any element for which 'fn' returns a falsy value is removed. The array is modified
-and then returned.
-
-:param fn: A callback function(element, index, array) => boolean.
-:return: The filtered (modified) array.
-`;
 
 Object.defineProperty(Array.prototype, "delete", {
   value: function(item) {
     var idx = this.indexOf(item);
     if (idx > -1) this.splice(idx,1);
-    return undefined;
+    return null;
   }
 });
 
-(Array.prototype.delete)[cell.DOC] = `Remove the first occurrence of 'item' from the array, if it exists.
-Returns undefined.
-
-:param item: The item to remove.
-:return: undefined
-`;
 
 Object.defineProperty(Array.prototype, "copy", {
   value: function () {
@@ -309,32 +192,21 @@ Object.defineProperty(Array.prototype, "copy", {
   },
 });
 
-(Array.prototype.copy)[cell.DOC] = `Return a deep copy of this array by applying 'deep_copy' to each element.
-The resulting array is entirely new.
-
-:return: A new array that is a deep copy of the original.
-`;
 
 Object.defineProperty(Array.prototype, "equal", {
   value: function equal(b) {
-    if (this.length !== b.length) return false;
+    if (this.length != b.length) return false;
     if (b == null) return false;
-    if (this === b) return true;
-    return JSON.stringify(this) === JSON.stringify(b);
+    if (this == b) return true;
+    return JSON.stringify(this) == JSON.stringify(b);
 
     for (var i = 0; i < this.length; i++) {
-      if (!this[i] === b[i]) return false;
+      if (!this[i] == b[i]) return false;
     }
     return true;
   },
 });
 
-(Array.prototype.equal)[cell.DOC] = `Check if this array and array 'b' have the same elements in the same order. 
-If they are of different lengths, return false. Otherwise compare them via JSON.
-
-:param b: Another array to compare against.
-:return: True if they match, false otherwise.
-`;
 
 Object.defineProperty(Array.prototype, "last", {
   value: function () {
@@ -342,10 +214,6 @@ Object.defineProperty(Array.prototype, "last", {
   },
 });
 
-(Array.prototype.last)[cell.DOC] = `Return the last element of this array. If the array is empty, returns undefined.
-
-:return: The last element of the array, or undefined if empty.
-`;
 
 Object.defineProperty(Array.prototype, "wrapped", {
   value: function (x) {
@@ -355,12 +223,6 @@ Object.defineProperty(Array.prototype, "wrapped", {
   },
 });
 
-(Array.prototype.wrapped)[cell.DOC] = `Return a copy of the array with the first 'x' elements appended to the end.
-Does not modify the original array.
-
-:param x: The number of leading elements to re-append.
-:return: A new array with the leading elements wrapped to the end.
-`;
 
 Object.defineProperty(Array.prototype, "wrap_idx", {
   value: function (x) {
@@ -371,12 +233,6 @@ Object.defineProperty(Array.prototype, "wrap_idx", {
   },
 });
 
-(Array.prototype.wrap_idx)[cell.DOC] = `Wrap the integer 'x' around this array's length, ensuring the resulting index 
-lies within [0, this.length - 1].
-
-:param x: The index to wrap.
-:return: A wrapped index within this array's bounds.
-`;
 
 Object.defineProperty(Array.prototype, "mirrored", {
   value: function (x) {
@@ -387,9 +243,3 @@ Object.defineProperty(Array.prototype, "mirrored", {
   },
 });
 
-(Array.prototype.mirrored)[cell.DOC] = `Return a new array that appends a reversed copy (excluding the last element) 
-of itself to the end. For example, [1,2,3] -> [1,2,3,2,1]. If the array has length 
-<= 1, a copy of it is returned directly.
-
-:return: A new "mirrored" array.
-`;

scripts/config.ce

@@ -40,7 +40,7 @@ function parse_key(key) {
 function get_nested(obj, path) {
   var current = obj
   for (var segment of path) {
-    if (!current || typeof current !== 'object') return undefined
+    if (!current || typeof current != 'object') return null
     current = current[segment]
   }
   return current
@@ -51,7 +51,7 @@ function set_nested(obj, path, value) {
   var current = obj
   for (var i = 0; i < path.length - 1; i++) {
     var segment = path[i]
-    if (!current[segment] || typeof current[segment] !== 'object') {
+    if (!current[segment] || typeof current[segment] != 'object') {
       current[segment] = {}
     }
     current = current[segment]
@@ -62,8 +62,8 @@ function set_nested(obj, path, value) {
 // Parse value string into appropriate type
 function parse_value(str) {
   // Boolean
-  if (str === 'true') return true
-  if (str === 'false') return false
+  if (str == 'true') return true
+  if (str == 'false') return false
   
   // Number (including underscores)
   var num_str = str.replace(/_/g, '')
@@ -76,8 +76,8 @@ function parse_value(str) {
 
 // Format value for display
 function format_value(val) {
-  if (typeof val === 'string') return '"' + val + '"'
-  if (typeof val === 'number' && val >= 1000) {
+  if (typeof val == 'string') return '"' + val + '"'
+  if (typeof val == 'number' && val >= 1000) {
     // Add underscores to large numbers
     return val.toString().replace(/\B(?=(\d{3})+(?!\d))/g, '_')
   }
@@ -90,7 +90,7 @@ function print_config(obj, prefix = '') {
     var val = obj[key]
     var full_key = prefix ? prefix + '.' + key : key
     
-    if (val && typeof val === 'object' && !Array.isArray(val)) {
+    if (val && typeof val == 'object' && !Array.isArray(val)) {
       print_config(val, full_key)
     } else {
       log.console(full_key + ' = ' + format_value(val))
@@ -99,7 +99,7 @@ function print_config(obj, prefix = '') {
 }
 
 // Main command handling
-if (args.length === 0) {
+if (args.length == 0) {
   print_help()
   $_.stop()
   return
@@ -137,9 +137,9 @@ switch (command) {
     var path = parse_key(key)
     var value = get_nested(config, path)
     
-    if (value === undefined) {
+    if (value == null) {
       log.error("Key not found: " + key)
-    } else if (value && typeof value === 'object' && !Array.isArray(value)) {
+    } else if (value && typeof value == 'object' && !Array.isArray(value)) {
       // Print all nested values
       print_config(value, key)
     } else {
@@ -159,7 +159,7 @@ switch (command) {
     var value = parse_value(value_str)
     
     // Validate system keys
-    if (path[0] === 'system') {
+    if (path[0] == 'system') {
       var valid_system_keys = [
         'ar_timer', 'actor_memory', 'net_service', 
         'reply_timeout', 'actor_max', 'stack_max'
@@ -193,7 +193,7 @@ switch (command) {
     
     switch (actor_cmd) {
       case 'list':
-        if (Object.keys(config.actors[actor_name]).length === 0) {
+        if (Object.keys(config.actors[actor_name]).length == 0) {
           log.console("No configuration for actor: " + actor_name)
         } else {
           log.console("# Configuration for actor: " + actor_name)
@@ -212,7 +212,7 @@ switch (command) {
         var path = parse_key(key)
         var value = get_nested(config.actors[actor_name], path)
         
-        if (value === undefined) {
+        if (value == null) {
           log.error("Key not found for actor " + actor_name + ": " + key)
         } else {
           log.console('actors.' + actor_name + '.' + key + ' = ' + format_value(value))

scripts/doc.cm

@@ -5,20 +5,20 @@ function docOf(obj, prop) {
 
   // 1) If `block` is a string, that's the entire doc for `obj`.
   //    If a sub-property is requested, we have nowhere to look → return ''.
-  if (typeof block === 'string') {
+  if (typeof block == 'string') {
     return prop ? '' : block;
   }
 
   // 2) Otherwise, if `block` is an object:
   //    (a) With no `prop`, return block.doc or block[cell.DOC].
   //    (b) If `prop` is given, look for doc specifically for that property (just one level).
-  if (typeof block === 'object') {
+  if (typeof block == 'object') {
     // 2a) No property → top-level doc
     if (!prop) {
-      if (typeof block.doc === 'string') {
+      if (typeof block.doc == 'string') {
         return block.doc;
       }
-      if (typeof block[cell.DOC] === 'string') {
+      if (typeof block[cell.DOC] == 'string') {
         return block[cell.DOC];
       }
       return '';
@@ -27,14 +27,14 @@ function docOf(obj, prop) {
     // 2b) If a prop is requested → see if there's a doc string or object for that property
     var subBlock = block[prop];
     if (!subBlock) return '';
-    if (typeof subBlock === 'string') {
+    if (typeof subBlock == 'string') {
       return subBlock;
     }
-    if (typeof subBlock === 'object') {
-      if (typeof subBlock.doc === 'string') {
+    if (typeof subBlock == 'object') {
+      if (typeof subBlock.doc == 'string') {
         return subBlock.doc;
       }
-      if (typeof subBlock[cell.DOC] === 'string') {
+      if (typeof subBlock[cell.DOC] == 'string') {
         return subBlock[cell.DOC];
       }
       return '';
@@ -94,7 +94,7 @@ function parseDocStr(docStr) {
 
   if (returnLines.length) {
     // If there were param lines, ensure blank line before the returns
-    if (paramLines.length && returnLines[0] !== '') {
+    if (paramLines.length && returnLines[0] != '') {
       final.push('');
     }
     final.push.apply(final, returnLines);
@@ -131,14 +131,14 @@ function walkObject(obj, lines, level, name) {
   var propNames = Object.getOwnPropertyNames(obj);
   for (var i = 0; i < propNames.length; i++) {
     var prop = propNames[i];
-    if (prop === 'constructor') continue;
+    if (prop == 'constructor') continue;
 
     var desc = Object.getOwnPropertyDescriptor(obj, prop);
     if (!desc) continue;
 
     // Check if accessor property (getter/setter)
-    var hasGetter = typeof desc.get === 'function';
-    var hasSetter = typeof desc.set === 'function';
+    var hasGetter = typeof desc.get == 'function';
+    var hasSetter = typeof desc.set == 'function';
 
     if (hasGetter || hasSetter) {
       writeProperty(lines, obj, prop, desc, level);
@@ -150,11 +150,11 @@ function walkObject(obj, lines, level, name) {
       var val = desc.value;
 
       // If it's a function, treat it like a method
-      if (typeof val === 'function') {
+      if (typeof val == 'function') {
         writeMethod(lines, obj, prop, val, level);
       }
       // If it's an object, just print doc for that object (no deep recursion)
-      else if (val && typeof val === 'object') {
+      else if (val && typeof val == 'object') {
         writeSubObject(lines, obj, prop, val, level);
       }
       // Otherwise, it's a primitive or something else
@@ -192,8 +192,8 @@ function writeProperty(lines, parentObj, prop, desc, level) {
   var heading = '#'.repeat(level + 2) + ' ' + prop + ' <sub>accessor</sub>';
   lines.push(heading + '\n');
 
-  var hasGetter = typeof desc.get === 'function';
-  var hasSetter = typeof desc.set === 'function';
+  var hasGetter = typeof desc.get == 'function';
+  var hasSetter = typeof desc.set == 'function';
 
   if (hasGetter && !hasSetter) {
     lines.push('(read only)\n');

scripts/docstrings.cm

@@ -66,24 +66,24 @@ Angles in degrees or radians must first be converted prior to making a quaternio
 `;
 
 prosperon.c_types.transform[cell.DOC].parent = `Get or set the transform's parent. If set, this transform becomes a child of
-the parent (re-parenting). Must be another transform object or undefined.
+the parent (re-parenting). Must be another transform object or null.
 
-:param value: (when setting) Another transform or undefined.
+:param value: (when setting) Another transform or null.
 :return: The current parent transform (when getting), or None (when setting).
 `;
 
 prosperon.c_types.transform[cell.DOC].change_hook = `A user-supplied function that's called whenever the transform's local matrix changes.
-If undefined, no hook is called.
+If null, no hook is called.
 
 :param value: (when setting) A function. 
-:return: The current function or undefined.
+:return: The current function or null.
 `;
 
 prosperon.c_types.transform[cell.DOC].trs = `Set the transform's position, rotation, and scale in one call.
 
-:param pos: [x,y,z] for position, or undefined to keep existing.
-:param quat: [qx,qy,qz,qw] for rotation, or undefined.
-:param scale: [sx,sy,sz] for scale, or undefined.
+:param pos: [x,y,z] for position, or null to keep existing.
+:param quat: [qx,qy,qz,qw] for rotation, or null.
+:param scale: [sx,sy,sz] for scale, or null.
 :return: None
 `;
 
@@ -231,7 +231,7 @@ prosperon.c_types.datastream[cell.DOC].framerate = `Return the framerate (FPS) o
 prosperon.c_types.datastream[cell.DOC].callback = `A function to call whenever a new frame is decoded. If not set, no callback is invoked.
 
 :param fn: (when setting) A function that receives (surface).
-:return: The existing function or undefined if none.
+:return: The existing function or null if none.
 `;
 
 
@@ -325,10 +325,10 @@ prosperon.c_types.SDL_Camera[cell.DOC] = {}
 prosperon.c_types.SDL_Camera[cell.DOC][cell.DOC] = `A handle to a physical camera device. Freed when references drop or camera is closed.
 `;
 
-prosperon.c_types.SDL_Camera[cell.DOC].frame = `Acquire the latest camera frame (as an SDL_Surface). Returns undefined if no
+prosperon.c_types.SDL_Camera[cell.DOC].frame = `Acquire the latest camera frame (as an SDL_Surface). Returns null if no
 new frame is available yet. Throws on error.
 
-:return: SDL_Surface or undefined.
+:return: SDL_Surface or null.
 `;
 
 prosperon.c_types.SDL_Camera[cell.DOC].release_frame = `Release a frame surface previously acquired via camera.frame(). Must be
@@ -376,9 +376,9 @@ prosperon.c_types.SDL_Window[cell.DOC].keyboard_shown = `Return whether the on-s
 :return: True if shown, false otherwise.
 `;
 
-prosperon.c_types.SDL_Window[cell.DOC].theme = `Currently returns undefined. Placeholder for retrieving OS window theme info.
+prosperon.c_types.SDL_Window[cell.DOC].theme = `Currently returns null. Placeholder for retrieving OS window theme info.
 
-:return: undefined
+:return: null
 `;
 
 prosperon.c_types.SDL_Window[cell.DOC].safe_area = `Return a rect describing any OS-specific "safe" region for UI, e.g. on iPhone with a notch.
@@ -502,7 +502,7 @@ prosperon.c_types.SDL_Renderer[cell.DOC].tile = `Tile a texture repeatedly withi
 :return: None
 `;
 
-prosperon.c_types.SDL_Renderer[cell.DOC].get_image = `Read back the rendered pixels into a new SDL_Surface. If rect is undefined, capture entire output.
+prosperon.c_types.SDL_Renderer[cell.DOC].get_image = `Read back the rendered pixels into a new SDL_Surface. If rect is null, capture entire output.
 
 :param rect: Optional {x,y,w,h}.
 :return: An SDL_Surface with the requested region's pixels.
@@ -518,7 +518,7 @@ prosperon.c_types.SDL_Renderer[cell.DOC].fasttext = `Draw debug text using an in
 
 prosperon.c_types.SDL_Renderer[cell.DOC].geometry = `Render custom geometry from a mesh object {pos, uv, color, indices, count} with an optional texture.
 
-:param texture: The SDL_Texture or undefined.
+:param texture: The SDL_Texture or null.
 :param meshObject: The geometry data with typed arrays.
 :return: None
 `;
@@ -536,15 +536,15 @@ For example, (320, 240) can auto-scale up to the window resolution.
 :return: None
 `;
 
-prosperon.c_types.SDL_Renderer[cell.DOC].viewport = `Set the clipping viewport for rendering. Pass undefined to use the full render target.
+prosperon.c_types.SDL_Renderer[cell.DOC].viewport = `Set the clipping viewport for rendering. Pass null to use the full render target.
 
-:param rect: {x, y, w, h}, or undefined.
+:param rect: {x, y, w, h}, or null.
 :return: None
 `;
 
-prosperon.c_types.SDL_Renderer[cell.DOC].clip = `Set or clear the clipping rectangle for drawing. Pass undefined to clear.
+prosperon.c_types.SDL_Renderer[cell.DOC].clip = `Set or clear the clipping rectangle for drawing. Pass null to clear.
 
-:param rect: {x, y, w, h} or undefined.
+:param rect: {x, y, w, h} or null.
 :return: None
 `;
 
@@ -579,9 +579,9 @@ prosperon.c_types.SDL_Renderer[cell.DOC].screen2world = `Convert a screen coordi
 :return: [wx, wy] in world space
 `;
 
-prosperon.c_types.SDL_Renderer[cell.DOC].target = `Set or clear the current render target texture. Pass undefined to reset to the default/window.
+prosperon.c_types.SDL_Renderer[cell.DOC].target = `Set or clear the current render target texture. Pass null to reset to the default/window.
 
-:param texture: An SDL_Texture or undefined
+:param texture: An SDL_Texture or null
 :return: None
 `;
 

scripts/engine.cm

@@ -248,6 +248,7 @@ globalThis.use = function use(file, ...args) {
   
   return ret
 }
+
 globalThis.json = use('json')
 var time = use('time')
 var st_now = time.number()
@@ -303,7 +304,7 @@ function deepFreeze(object) {
   for (var name of propNames) {
     var value = object[name];
 
-    if ((value && typeof value === "object") || typeof value === "function") {
+    if ((value && typeof value == "object") || typeof value == "function") {
       deepFreeze(value);
     }
   }
@@ -374,10 +375,10 @@ $_.clock = function(fn) {
 $_.clock[cell.DOC] = "takes a function input value that will eventually be called with the current time in number form."
 
 var underlings = new Set() // this is more like "all actors that are notified when we die"
-var overling = undefined
-var root = undefined
+var overling = null
+var root = null
 
-var receive_fn = undefined
+var receive_fn = null
 var greeters = {} // Router functions for when messages are received for a specific actor
 
 globalThis.is_actor = function is_actor(actor) {
@@ -424,9 +425,9 @@ $_.connection[cell.DOC] = "The connection function takes a callback function, an
 
 var peers = {}
 var id_address = {}
-var peer_queue = new WeakMap()
-var portal = undefined
-var portal_fn = undefined
+var peer_queue = {}
+var portal = null
+var portal_fn = null
 
 $_.portal = function(fn, port) {
   if (portal) throw new Error(`Already started a portal listening on ${portal.port}`)
@@ -451,7 +452,7 @@ function handle_host(e) {
       break
     case "disconnect":
       peer_queue.delete(e.peer)
-      for (var id in peers) if (peers[id] === e.peer) delete peers[id]
+      for (var id in peers) if (peers[id] == e.peer) delete peers[id]
       log.system('portal got disconnect from ' + e.peer.address + ":" + e.peer.port)
       break
     case "receive":
@@ -461,7 +462,7 @@ function handle_host(e) {
         data.replycc[ACTORDATA].port = e.peer.port
       }
       function populate_actor_addresses(obj) {
-        if (typeof obj !== 'object' || obj === null) return
+        if (typeof obj != 'object' || obj == null) return
         if (obj[ACTORDATA] && !obj[ACTORDATA].address) {
           obj[ACTORDATA].address = e.peer.address
           obj[ACTORDATA].port = e.peer.port
@@ -494,7 +495,7 @@ $_.start = function start(cb, program, ...args) {
   if (!program) return
   var id = guid()
   
-  if (args.length === 1 && Array.isArray(args[0]))
+  if (args.length == 1 && Array.isArray(args[0]))
     args = args[0]
   
   var startup = {
@@ -543,7 +544,7 @@ $_.delay[cell.DOC] = "used to schedule the invocation of a function..."
 
 var couplings = new Set()
 $_.couple = function couple(actor) {
-  if (actor === $_) return // can't couple to self
+  if (actor == $_) return // can't couple to self
   couplings.add(actor[ACTORDATA].id)
   sys_msg(actor, {kind:'couple', from: $_})
   log.system(`coupled to ${actor}`)
@@ -569,10 +570,10 @@ function actor_send(actor, message) {
 
   if (!is_actor(actor) && !is_actor(actor.replycc)) throw new Error(`Must send to an actor object. Attempted send to ${json.encode(actor)}`)
   
-  if (typeof message !== 'object') throw new Error('Must send an object record.')
+  if (typeof message != 'object') throw new Error('Must send an object record.')
 
   // message to self
-  if (actor[ACTORDATA].id === cell.id) {
+  if (actor[ACTORDATA].id == cell.id) {
     if (receive_fn) receive_fn(message.data)
     return
   }
@@ -627,10 +628,10 @@ function send_messages() {
 var replies = {}
 
 globalThis.send = function send(actor, message, reply) {
-  if (typeof actor !== 'object')
+  if (typeof actor != 'object')
     throw new Error('Must send to an actor object. Provided: ' + actor);
     
-  if (typeof message !== 'object')
+  if (typeof message != 'object')
     throw new Error('Message must be an object')
   var send = {type:"user", data: message}
 
@@ -648,7 +649,7 @@ globalThis.send = function send(actor, message, reply) {
     replies[id] = reply
     $_.delay(_ => {
       if (replies[id]) {
-        replies[id](undefined, "timeout")
+        replies[id](null, "timeout")
         delete replies[id]
       }
     }, REPLYTIMEOUT)
@@ -763,7 +764,7 @@ function handle_message(msg) {
       Object.defineProperty(letter, HEADER, {
         value: msg, enumerable: false
       })
-      Object.defineProperty(letter, ACTORDATA, { // this is so is_actor === true
+      Object.defineProperty(letter, ACTORDATA, { // this is so is_actor == true
         value: { reply: msg.reply }, enumerable: false
       })
       

scripts/get.ce

@@ -19,7 +19,7 @@ var parsed = shop.parse_locator(locator)
 
 // If no version specified, append @head
 if (!parsed) {
-  if (locator.indexOf('@') === -1) {
+  if (locator.indexOf('@') == -1) {
     locator = locator + '@head'
     parsed = shop.parse_locator(locator)
   }

scripts/http.cm

@@ -8,7 +8,7 @@ This function enqueues an HTTP GET request for the specified URL. It supports bo
 :param options: Either a callback function or an object with optional properties:
   - 'callback': A function invoked upon request completion, receiving an object with 'data' (string or null) and 'error' (string or null) properties.
   - 'on_data': A function invoked for each chunk of streaming data, receiving a string chunk as its argument. If supplied, 'callback.data' will be null.
-:return: undefined
+:return: null
 :throws:
   - An error if the URL is not a string or is invalid.
   - An error if the options argument is neither a function nor an object.

scripts/io.cm

@@ -72,11 +72,11 @@ Throw on error.
 :return: None
 `
 
-io.mount[cell.DOC] = `Mount a directory or archive at the specified mount point. An undefined mount
+io.mount[cell.DOC] = `Mount a directory or archive at the specified mount point. An null mount
 point mounts to '/'. Throw on error.
 
 :param archiveOrDir: The directory or archive to mount.
-:param mountPoint: The path at which to mount. If omitted or undefined, '/' is used.
+:param mountPoint: The path at which to mount. If omitted or null, '/' is used.
 :return: None
 `
 
@@ -145,10 +145,10 @@ operations. Throw on error.
 `
 
 io.realdir[cell.DOC] = `Return the actual, real directory (on the host filesystem) that contains the given
-file path. Return undefined if not found.
+file path. Return null if not found.
 
 :param path: The file path whose real directory is requested.
-:return: A string with the real directory path, or undefined.
+:return: A string with the real directory path, or null.
 `
 
 io.searchpath[cell.DOC] = `Return an array of all directories in the current paths.

scripts/jswota.cm

@@ -71,21 +71,21 @@ function encode_key(key)
 function encode_val(b, val)
 {
   var type = typeof val
-  if (type === 'number') {
+  if (type == 'number') {
     b.write_blob(FP_HEADER)
     b.write_number(val)
-  } else if (type === 'string') {
+  } else if (type == 'string') {
     b.write_fit(utf8.byte_length(val), 56)
     b.write_blob(TEXT)
     b.write_blob(utf8.encode(val))
-  } else if (type === 'boolean') {
+  } else if (type == 'boolean') {
     if (val)
       b.write_blob(TRUE_SYMBOL)
     else
       b.write_blob(FALSE_SYMBOL)
-  } else if (type === 'undefined') {
+  } else if (type == 'null') {
     b.write_blob(NULL_SYMBOL)
-  } else if (type === 'object') {
+  } else if (type == 'object') {
     if (Array.isArray(val)) {
       b.write_fit(val.length, 56)
       b.write_blob(ARRAY)
@@ -100,7 +100,7 @@ function encode_val(b, val)
       b.write_fit(keys.length, 56)
       b.write_blob(RECORD)
       for (var key of keys) {
-        if (typeof val[key] === 'function') continue
+        if (typeof val[key] == 'function') continue
         b.write_blob(encode_key(key))
         encode_val(b, val[key])
       }
@@ -118,7 +118,7 @@ function encode(val)
 
 function decode(b)
 {
-  return undefined
+  return null
 }
 
 return { INT, FP_HEADER, ARRAY, RECORD, BLOB, TEXT, NULL_SYMBOL, FALSE_SYMBOL, TRUE_SYMBOL, PRIVATE_SYMBOL, SYSTEM_SYMBOL, encode, decode }

scripts/list.ce

@@ -16,7 +16,7 @@ if (!config) {
 }
 
 // List dependencies
-if (!config.dependencies || Object.keys(config.dependencies).length === 0) {
+if (!config.dependencies || Object.keys(config.dependencies).length == 0) {
   log.console("No modules installed")
   return
 }

scripts/miniz.cm

@@ -1,14 +1,14 @@
 var miniz = this
 
 miniz.read[cell.DOC] = `Create a zip reader from the given ArrayBuffer containing an entire ZIP archive.
-Return undefined if the data is invalid.
+Return null if the data is invalid.
 
 :param data: An ArrayBuffer with the entire ZIP file.
 :return: A 'zip reader' object with methods for reading from the archive (mod, exists, slurp).
 `
 
 miniz.write[cell.DOC] = `Create a zip writer that writes to the specified file path. Overwrites the file if
-it already exists. Return undefined on error.
+it already exists. Return null on error.
 
 :param path: The file path where the ZIP archive will be written.
 :return: A 'zip writer' object with methods for adding files to the archive (add_file).

scripts/mod.ce

@@ -60,7 +60,7 @@ uses.download = function()
     } else if (!io.exists(cache_path)) {
       log.console(`${mod}: cache missing, will download`)
       need_download = true
-    } else if (remote_commit && (!lock.modules[mod].commit || lock.modules[mod].commit !== remote_commit)) {
+    } else if (remote_commit && (!lock.modules[mod].commit || lock.modules[mod].commit != remote_commit)) {
       log.console(`${mod}: remote has new commit`)
       log.console(`  local:  ${lock.modules[mod].commit || 'unknown'}`)
       log.console(`  remote: ${remote_commit}`)
@@ -74,7 +74,7 @@ uses.download = function()
       var hash = crypto.hash(zip)
       var hash_b32 = text(hash, "t")
       
-      if (hash_b32 !== lock.modules[mod].hash) {
+      if (hash_b32 != lock.modules[mod].hash) {
         log.console(`${mod}: hash mismatch, will redownload`)
         log.console(`  expected: ${lock.modules[mod].hash}`)
         log.console(`  actual:   ${hash_b32}`)
@@ -136,7 +136,7 @@ uses.download = function()
       
       // Strip the module name prefix if present
       var prefix = mod + '/'
-      if (filename.indexOf(prefix) === 0)
+      if (filename.indexOf(prefix) == 0)
         filename = filename.substring(prefix.length)
       
       // Skip if filename is empty after stripping

scripts/module_resolver.cm

@@ -38,9 +38,9 @@ function resolve_relative(base, relative) {
   
   for (var i = 0; i < rel_parts.length; i++) {
     var part = rel_parts[i]
-    if (part === '.') {
+    if (part == '.') {
       continue
-    } else if (part === '..') {
+    } else if (part == '..') {
       parts.pop()
     } else {
       parts.push(part)
@@ -82,7 +82,7 @@ ModuleResolver.check_alias = function(request) {
   }
   
   // Check for single-alias fallback
-  if (config.dependencies && Object.keys(config.dependencies).length === 1) {
+  if (config.dependencies && Object.keys(config.dependencies).length == 1) {
     // If only one dependency and no local file matches, route there
     var only_dep = Object.keys(config.dependencies)[0]
     return '/' + only_dep + '/' + request

scripts/nota.cm

@@ -31,10 +31,10 @@ This function serializes JavaScript values (such as numbers, strings, booleans,
 
 nota.decode[cell.DOC] = `Decode a NOTA-encoded ArrayBuffer into a JavaScript value.
 
-This function deserializes a NOTA-formatted ArrayBuffer into its corresponding JavaScript representation, such as a number, string, boolean, array, object, or ArrayBuffer. If the input is invalid or empty, it returns undefined.
+This function deserializes a NOTA-formatted ArrayBuffer into its corresponding JavaScript representation, such as a number, string, boolean, array, object, or ArrayBuffer. If the input is invalid or empty, it returns null.
 
 :param buffer: An ArrayBuffer containing NOTA-encoded data to decode.
-:return: The decoded JavaScript value (e.g., number, string, boolean, array, object, or ArrayBuffer), or undefined if no argument is provided.
+:return: The decoded JavaScript value (e.g., number, string, boolean, array, object, or ArrayBuffer), or null if no argument is provided.
 `
 
 return nota

scripts/parseq.cm

@@ -14,18 +14,18 @@
   Each factory returns a **requestor** function as described by the spec.
 */
 
-const delay = arg[0] // may be undefined
+def delay = arg[0] // may be null
 
 // ———————————————————————————————————————— helpers
 
 function make_reason (factory, excuse, evidence) {
-  const reason = new Error(`parseq.${factory}${excuse ? ': ' + excuse : ''}`)
+  def reason = new Error(`parseq.${factory}${excuse ? ': ' + excuse : ''}`)
   reason.evidence = evidence
   return reason
 }
 
 function is_requestor (fn) {
-  return typeof fn === 'function' && (fn.length === 1 || fn.length === 2)
+  return typeof fn == 'function' && (fn.length == 1 || fn.length == 2)
 }
 
 function check_requestors (list, factory) {
@@ -34,13 +34,13 @@ function check_requestors (list, factory) {
 }
 
 function check_callback (cb, factory) {
-  if (typeof cb !== 'function' || cb.length !== 2)
+  if (typeof cb != 'function' || cb.length != 2)
     throw make_reason(factory, 'Not a callback.', cb)
 }
 
 function schedule (fn, seconds) {
-  if (seconds === undefined || seconds <= 0) return fn()
-  if (typeof delay === 'function') return delay(fn, seconds)
+  if (seconds == null || seconds <= 0) return fn()
+  if (typeof delay == 'function') return delay(fn, seconds)
   throw make_reason('schedule', '@.delay capability required for timeouts.')
 }
 
@@ -52,41 +52,41 @@ function run (factory, requestors, initial, action, time_limit, throttle = 0) {
   let timer_cancel
 
   function cancel (reason = make_reason(factory, 'Cancel.')) {
-    if (timer_cancel) timer_cancel(), timer_cancel = undefined
+    if (timer_cancel) timer_cancel(), timer_cancel = null
     if (!cancel_list) return
-    cancel_list.forEach(c => { try { if (typeof c === 'function') c(reason) } catch (_) {} })
-    cancel_list = undefined
+    cancel_list.forEach(c => { try { if (typeof c == 'function') c(reason) } catch (_) {} })
+    cancel_list = null
   }
 
   function start_requestor (value) {
     if (!cancel_list || next >= requestors.length) return
     let idx = next++
-    const req = requestors[idx]
+    def req = requestors[idx]
 
     try {
       cancel_list[idx] = req(function req_cb (val, reason) {
-        if (!cancel_list || idx === undefined) return
-        cancel_list[idx] = undefined
+        if (!cancel_list || idx == null) return
+        cancel_list[idx] = null
         action(val, reason, idx)
-        idx = undefined
-        if (factory === 'sequence') start_requestor(val)
+        idx = null
+        if (factory == 'sequence') start_requestor(val)
         else if (throttle) start_requestor(initial)
       }, value)
     } catch (ex) {
-      action(undefined, ex, idx)
-      idx = undefined
-      if (factory === 'sequence') start_requestor(value)
+      action(null, ex, idx)
+      idx = null
+      if (factory == 'sequence') start_requestor(value)
       else if (throttle) start_requestor(initial)
     }
   }
 
-  if (time_limit !== undefined) {
-    if (typeof time_limit !== 'number' || time_limit < 0)
+  if (time_limit != null) {
+    if (typeof time_limit != 'number' || time_limit < 0)
       throw make_reason(factory, 'Bad time limit.', time_limit)
     if (time_limit > 0) timer_cancel = schedule(() => cancel(make_reason(factory, 'Timeout.', time_limit)), time_limit)
   }
 
-  const concurrent = throttle ? Math.min(throttle, requestors.length) : requestors.length
+  def concurrent = throttle ? Math.min(throttle, requestors.length) : requestors.length
   for (let i = 0; i < concurrent; i++) start_requestor(initial)
 
   return cancel
@@ -96,9 +96,9 @@ function run (factory, requestors, initial, action, time_limit, throttle = 0) {
 
 function _normalize (collection, factory) {
   if (Array.isArray(collection)) return { names: null, list: collection }
-  if (collection && typeof collection === 'object') {
-    const names = Object.keys(collection)
-    const list = names.map(k => collection[k]).filter(is_requestor)
+  if (collection && typeof collection == 'object') {
+    def names = Object.keys(collection)
+    def list = names.map(k => collection[k]).filter(is_requestor)
     return { names, list }
   }
   throw make_reason(factory, 'Expected array or record.', collection)
@@ -106,29 +106,29 @@ function _normalize (collection, factory) {
 
 function _denormalize (names, list) {
   if (!names) return list
-  const obj = Object.create(null)
+  def obj = Object.create(null)
   names.forEach((k, i) => { obj[k] = list[i] })
   return obj
 }
 
 function par_all (collection, time_limit, throttle) {
-  const factory = 'par_all'
-  const { names, list } = _normalize(collection, factory)
-  if (list.length === 0) return (cb, v) => cb(names ? {} : [])
+  def factory = 'par_all'
+  def { names, list } = _normalize(collection, factory)
+  if (list.length == 0) return (cb, v) => cb(names ? {} : [])
   check_requestors(list, factory)
 
   return function par_all_req (cb, initial) {
     check_callback(cb, factory)
     let pending = list.length
-    const results = new Array(list.length)
+    def results = new Array(list.length)
 
-    const cancel = run(factory, list, initial, (val, reason, idx) => {
-      if (val === undefined) {
+    def cancel = run(factory, list, initial, (val, reason, idx) => {
+      if (val == null) {
         cancel(reason)
-        return cb(undefined, reason)
+        return cb(null, reason)
       }
       results[idx] = val
-      if (--pending === 0) cb(_denormalize(names, results))
+      if (--pending == 0) cb(_denormalize(names, results))
     }, time_limit, throttle)
 
     return cancel
@@ -136,24 +136,24 @@ function par_all (collection, time_limit, throttle) {
 }
 
 function par_any (collection, time_limit, throttle) {
-  const factory = 'par_any'
-  const { names, list } = _normalize(collection, factory)
-  if (list.length === 0) return (cb, v) => cb(names ? {} : [])
+  def factory = 'par_any'
+  def { names, list } = _normalize(collection, factory)
+  if (list.length == 0) return (cb, v) => cb(names ? {} : [])
   check_requestors(list, factory)
 
   return function par_any_req (cb, initial) {
     check_callback(cb, factory)
     let pending = list.length
-    const successes = new Array(list.length)
+    def successes = new Array(list.length)
 
-    const cancel = run(factory, list, initial, (val, reason, idx) => {
+    def cancel = run(factory, list, initial, (val, reason, idx) => {
       pending--
-      if (val !== undefined) successes[idx] = val
-      if (successes.some(v => v !== undefined)) {
+      if (val != null) successes[idx] = val
+      if (successes.some(v => v != null)) {
         if (!pending) cancel(make_reason(factory, 'Finished.'))
-        return cb(_denormalize(names, successes.filter(v => v !== undefined)))
+        return cb(_denormalize(names, successes.filter(v => v != null)))
       }
-      if (!pending) cb(undefined, make_reason(factory, 'No successes.'))
+      if (!pending) cb(null, make_reason(factory, 'No successes.'))
     }, time_limit, throttle)
 
     return cancel
@@ -161,24 +161,24 @@ function par_any (collection, time_limit, throttle) {
 }
 
 function race (list, time_limit, throttle) {
-  const factory = throttle === 1 ? 'fallback' : 'race'
-  if (!Array.isArray(list) || list.length === 0)
+  def factory = throttle == 1 ? 'fallback' : 'race'
+  if (!Array.isArray(list) || list.length == 0)
     throw make_reason(factory, 'No requestors.')
   check_requestors(list, factory)
 
   return function race_req (cb, initial) {
     check_callback(cb, factory)
     let done = false
-    const cancel = run(factory, list, initial, (val, reason, idx) => {
+    def cancel = run(factory, list, initial, (val, reason, idx) => {
       if (done) return
-      if (val !== undefined) {
+      if (val != null) {
         done = true
         cancel(make_reason(factory, 'Loser.', idx))
         cb(val)
-      } else if (--list.length === 0) {
+      } else if (--list.length == 0) {
         done = true
         cancel(reason)
-        cb(undefined, reason)
+        cb(null, reason)
       }
     }, time_limit, throttle)
     return cancel
@@ -190,10 +190,10 @@ function fallback (list, time_limit) {
 }
 
 function sequence (list, time_limit) {
-  const factory = 'sequence'
+  def factory = 'sequence'
   if (!Array.isArray(list)) throw make_reason(factory, 'Not an array.', list)
   check_requestors(list, factory)
-  if (list.length === 0) return (cb, v) => cb(v)
+  if (list.length == 0) return (cb, v) => cb(v)
 
   return function sequence_req (cb, initial) {
     check_callback(cb, factory)
@@ -203,11 +203,11 @@ function sequence (list, time_limit) {
       if (idx >= list.length) return cb(value)
       try {
         list[idx++](function seq_cb (val, reason) {
-          if (val === undefined) return cb(undefined, reason)
+          if (val == null) return cb(null, reason)
           next(val)
         }, value)
       } catch (ex) {
-        cb(undefined, ex)
+        cb(null, ex)
       }
     }
 

scripts/shop.cm

@@ -50,7 +50,7 @@ Shop.init = function() {
 // Parse module locator (e.g., "git.world/jj/mod@v0.6.3")
 Shop.parse_locator = function(locator) {
   var parts = locator.split('@')
-  if (parts.length !== 2) {
+  if (parts.length != 2) {
     return null
   }
   

scripts/test.ce

@@ -2,7 +2,7 @@
 
 var def = arg
 
-if (arg.length === 0)
+if (arg.length == 0)
   arg = [
     'send',
     'stop',

scripts/text.cm

@@ -17,7 +17,7 @@ function to_radix(num, radix) {
   var negative = n < 0;
   n = Math.abs(n);
   
-  if (n === 0) return "0";
+  if (n == 0) return "0";
   
   while (n > 0) {
     result = digits[n % radix] + result;
@@ -29,9 +29,9 @@ function to_radix(num, radix) {
 
 // Insert separator every n digits from right
 function add_separator(str, sep, n) {
-  if (!n || n === 0) return str;
+  if (!n || n == 0) return str;
   
-  var negative = str[0] === '-';
+  var negative = str[0] == '-';
   if (negative) str = str.substring(1);
   
   var parts = str.split('.');
@@ -41,7 +41,7 @@ function add_separator(str, sep, n) {
   // Add separators to integer part
   var result = "";
   for (var i = integer.length - 1, count = 0; i >= 0; i--) {
-    if (count === n && i !== integer.length - 1) {
+    if (count == n && i != integer.length - 1) {
       result = sep + result;
       count = 0;
     }
@@ -55,14 +55,14 @@ function add_separator(str, sep, n) {
 
 // Format number with separator from left
 function add_separator_left(str, sep, n) {
-  if (!n || n === 0) return str;
+  if (!n || n == 0) return str;
   
-  var negative = str[0] === '-';
+  var negative = str[0] == '-';
   if (negative) str = str.substring(1);
   
   var result = "";
   for (var i = 0, count = 0; i < str.length; i++) {
-    if (count === n && i !== 0) {
+    if (count == n && i != 0) {
       result += sep;
       count = 0;
     }
@@ -75,7 +75,7 @@ function add_separator_left(str, sep, n) {
 
 /* -------- main text function --------------------------------------- */
 
-function text() {
+function text(...arguments) {
   var arg = arguments[0];
   
   // Handle blob conversion
@@ -87,7 +87,7 @@ function text() {
     var bit_length = arg.length;
     var result = "";
     
-    if (typeof format === 'string') {
+    if (typeof format == 'string') {
       // Extract style from format
       var style = '';
       for (var i = 0; i < format.length; i++) {
@@ -120,7 +120,7 @@ function text() {
             value = (value << 1) | (bit ? 1 : 0);
             bits++;
             
-            if (bits === 3) {
+            if (bits == 3) {
               result += value.toString();
               bits = 0;
               value = 0;
@@ -150,13 +150,13 @@ function text() {
     var all_codepoints = true;
     for (var i = 0; i < arg.length; i++) {
       var item = arg[i];
-      if (!(typeof item === 'number' && item >= 0 && item <= 0x10FFFF && item === Math.floor(item))) {
+      if (!(typeof item == 'number' && item >= 0 && item <= 0x10FFFF && item == Math.floor(item))) {
         all_codepoints = false;
         break;
       }
     }
     
-    if (all_codepoints && separator === "") {
+    if (all_codepoints && separator == "") {
       // Use utf8 module to convert codepoints to string
       return utf8.from_codepoints(arg);
     } else {
@@ -166,7 +166,7 @@ function text() {
         if (i > 0) result += separator;
         
         var item = arg[i];
-        if (typeof item === 'number' && item >= 0 && item <= 0x10FFFF && item === Math.floor(item)) {
+        if (typeof item == 'number' && item >= 0 && item <= 0x10FFFF && item == Math.floor(item)) {
           // Single codepoint - use utf8 module
           result += utf8.from_codepoints([item]);
         } else {
@@ -178,16 +178,16 @@ function text() {
   }
   
   // Handle number conversion
-  if (typeof arg === 'number') {
+  if (typeof arg == 'number') {
     var format = arguments[1];
     
     // Simple radix conversion
-    if (typeof format === 'number') {
+    if (typeof format == 'number') {
       return to_radix(arg, format);
     }
     
     // Format string conversion
-    if (typeof format === 'string') {
+    if (typeof format == 'string') {
       return format_number(arg, format);
     }
     
@@ -196,13 +196,13 @@ function text() {
   }
   
   // Handle text operations
-  if (typeof arg === 'string') {
-    if (arguments.length === 1) return arg;
+  if (typeof arg == 'string') {
+    if (arguments.length == 1) return arg;
     
     var from = arguments[1];
     var to = arguments[2];
     
-    if (typeof from !== 'number' || typeof to !== 'number') return arg;
+    if (typeof from != 'number' || typeof to != 'number') return arg;
     
     var len = arg.length;
     
@@ -211,8 +211,8 @@ function text() {
     if (to < 0) to += len;
     
     // Default values
-    if (from === undefined) from = 0;
-    if (to === undefined) to = len;
+    if (from == null) from = 0;
+    if (to == null) to = len;
     
     // Validate range
     if (from < 0 || from > to || to > len) return null;
@@ -261,8 +261,8 @@ function format_number(num, format) {
   if (i < format.length) return null;
   
   // Real number styles
-  if (style === 'e' || style === 'n' || style === 's' || 
-      style === 'u' || style === 'd' || style === 'v' || style === 'l') {
+  if (style == 'e' || style == 'n' || style == 's' || 
+      style == 'u' || style == 'd' || style == 'v' || style == 'l') {
     
     var decimal_point = '.';
     var separator = '';
@@ -314,15 +314,15 @@ function format_number(num, format) {
         break;
     }
     
-    if (separation === 0) separation = default_separation;
-    if (places === 0 && style !== 'e' && style !== 'n') places = default_places;
+    if (separation == 0) separation = default_separation;
+    if (places == 0 && style != 'e' && style != 'n') places = default_places;
     
     // Format the number
-    if (style === 'e') {
+    if (style == 'e') {
       // Scientific notation
       var str = places > 0 ? num.toExponential(places) : num.toExponential();
       return str;
-    } else if (style === 'n' && (Math.abs(num) >= 1e21 || (Math.abs(num) < 1e-6 && num !== 0))) {
+    } else if (style == 'n' && (Math.abs(num) >= 1e21 || (Math.abs(num) < 1e-6 && num != 0))) {
       // Use scientific notation for extreme values
       return num.toExponential();
     } else {
@@ -335,7 +335,7 @@ function format_number(num, format) {
       }
       
       // Replace decimal point if needed
-      if (decimal_point !== '.') {
+      if (decimal_point != '.') {
         str = str.replace('.', decimal_point);
       }
       
@@ -349,8 +349,8 @@ function format_number(num, format) {
   }
   
   // Integer styles
-  if (style === 'i' || style === 'b' || style === 'o' || 
-      style === 'h' || style === 't') {
+  if (style == 'i' || style == 'b' || style == 'o' || 
+      style == 'h' || style == 't') {
     
     var radix = 10;
     var default_separation = 0;
@@ -384,15 +384,15 @@ function format_number(num, format) {
         break;
     }
     
-    if (separation === 0) separation = default_separation;
-    if (places === 0) places = default_places;
+    if (separation == 0) separation = default_separation;
+    if (places == 0) places = default_places;
     
     // Convert to integer
     var n = Math.trunc(num);
     var str = to_radix(n, radix).toUpperCase();
     
     // Pad with zeros if needed
-    var negative = str[0] === '-';
+    var negative = str[0] == '-';
     if (negative) str = str.substring(1);
     
     while (str.length < places) {

scripts/time.cm

@@ -41,10 +41,10 @@ time.week2day       = function() { return time.week / time.day;    };
 /* leap-year helpers */
 time.yearsize = function yearsize(y)
 {
-  if (y % 4 === 0 && (y % 100 !== 0 || y % 400 === 0)) return 366;
+  if (y % 4 == 0 && (y % 100 != 0 || y % 400 == 0)) return 366;
   return 365;
 };
-time.isleap = function(y) { return time.yearsize(y) === 366; };
+time.isleap = function(y) { return time.yearsize(y) == 366; };
 
 /* timecode utility */
 time.timecode = function(t, fps = 24)
@@ -64,7 +64,7 @@ function record(num = now(),
                 dst  = computer_dst())
 {
   /* caller passed an existing record → return it verbatim */
-  if (typeof num === "object") return num;
+  if (typeof num == "object") return num;
 
   /* -------------------------------------------------------------------- */
   /* convert seconds-since-epoch → broken-down record                      */
@@ -107,7 +107,7 @@ function record(num = now(),
   rec.yday  = day;
 
   /* month & month-day */
-  if (time.yearsize(y) === 366) monthdays[1] = 29;
+  if (time.yearsize(y) == 366) monthdays[1] = 29;
   var m = 0;
   for (; day >= monthdays[m]; m++) day -= monthdays[m];
   rec.month = m;
@@ -119,11 +119,15 @@ function record(num = now(),
 function number(rec = now())
 {
   /* fall through for numeric input or implicit “now” */
-  if (typeof rec === "number") return rec;
+  if (typeof rec == "number") return rec;
 
   /* -------------------------------------------------------------------- */
   /* record → seconds-since-epoch                                          */
 
+  log.console(typeof rec)
+  log.console(rec)  
+  log.console(rec.minute)
+
   var c      = 0;
   var year   = rec.year   || 0;
   var hour   = rec.hour   || 0;
@@ -165,15 +169,15 @@ function text(num = now(),
               zone = computer_zone(),
               dst  = computer_dst())
 {
-  var rec   = (typeof num === "number") ? record(num, zone, dst) : num;
+  var rec   = (typeof num == "number") ? record(num, zone, dst) : num;
   zone      = rec.zone;
   dst       = rec.dst;
 
   /* am/pm */
   if (fmt.includes("a")) {
     if (rec.hour >= 13) { rec.hour -= 12; fmt = fmt.replaceAll("a", "PM"); }
-    else if (rec.hour === 12)            { fmt = fmt.replaceAll("a", "PM"); }
-    else if (rec.hour === 0)  { rec.hour = 12; fmt = fmt.replaceAll("a", "AM"); }
+    else if (rec.hour == 12)            { fmt = fmt.replaceAll("a", "PM"); }
+    else if (rec.hour == 0)  { rec.hour = 12; fmt = fmt.replaceAll("a", "AM"); }
     else                                   fmt = fmt.replaceAll("a", "AM");
   }
 

scripts/toml.cm

@@ -42,9 +42,9 @@ function parse_toml(text) {
       } else if (value.startsWith('[') && value.endsWith(']')) {
         // Array
         current_section[key] = parse_array(value)
-      } else if (value === 'true' || value === 'false') {
+      } else if (value == 'true' || value == 'false') {
         // Boolean
-        current_section[key] = value === 'true'
+        current_section[key] = value == 'true'
       } else if (!isNaN(Number(value))) {
         // Number
         current_section[key] = Number(value)
@@ -70,10 +70,10 @@ function parse_array(str) {
   for (var i = 0; i < str.length; i++) {
     var char = str[i]
     
-    if (char === '"' && (i === 0 || str[i-1] !== '\\')) {
+    if (char == '"' && (i == 0 || str[i-1] != '\\')) {
       in_quotes = !in_quotes
       current += char
-    } else if (char === ',' && !in_quotes) {
+    } else if (char == ',' && !in_quotes) {
       items.push(parse_value(current.trim()))
       current = ''
     } else {
@@ -91,8 +91,8 @@ function parse_array(str) {
 function parse_value(str) {
   if (str.startsWith('"') && str.endsWith('"')) {
     return str.slice(1, -1).replace(/\\"/g, '"')
-  } else if (str === 'true' || str === 'false') {
-    return str === 'true'
+  } else if (str == 'true' || str == 'false') {
+    return str == 'true'
   } else if (!isNaN(Number(str))) {
     return Number(str)
   } else {
@@ -104,11 +104,11 @@ function encode_toml(obj) {
   var result = []
   
   function encode_value(value) {
-    if (typeof value === 'string') {
+    if (typeof value == 'string') {
       return '"' + value.replace(/"/g, '\\"') + '"'
-    } else if (typeof value === 'boolean') {
+    } else if (typeof value == 'boolean') {
       return value ? 'true' : 'false'
-    } else if (typeof value === 'number') {
+    } else if (typeof value == 'number') {
       return String(value)
     } else if (Array.isArray(value)) {
       var items = []
@@ -125,7 +125,7 @@ function encode_toml(obj) {
   for (var i = 0; i < keys.length; i++) {
     var key = keys[i]
     var value = obj[key]
-    if (value === null || typeof value !== 'object' || Array.isArray(value)) {
+    if (value == null || typeof value != 'object' || Array.isArray(value)) {
       result.push(key + ' = ' + encode_value(value))
     }
   }
@@ -138,7 +138,7 @@ function encode_toml(obj) {
       var key = keys[i]
       var value = obj[key]
       
-      if (value !== null && typeof value === 'object' && !Array.isArray(value)) {
+      if (value != null && typeof value == 'object' && !Array.isArray(value)) {
         // Nested object - create section
         var section_path = path ? path + '.' + key : key
         result.push('[' + section_path + ']')
@@ -148,7 +148,7 @@ function encode_toml(obj) {
         for (var j = 0; j < section_keys.length; j++) {
           var sk = section_keys[j]
           var sv = value[sk]
-          if (sv === null || typeof sv !== 'object' || Array.isArray(sv)) {
+          if (sv == null || typeof sv != 'object' || Array.isArray(sv)) {
             result.push(sk + ' = ' + encode_value(sv))
           }
         }

scripts/update.ce

@@ -77,7 +77,7 @@ for (var alias in deps_to_check) {
         local_commit: null,
         remote_commit: remote_commit
       })
-    } else if (local_commit !== remote_commit) {
+    } else if (local_commit != remote_commit) {
       log.console("  Update available!")
       log.console("    Local:  " + local_commit.substring(0, 8))
       log.console("    Remote: " + remote_commit.substring(0, 8))
@@ -95,7 +95,7 @@ for (var alias in deps_to_check) {
   }
 }
 
-if (updates_available.length === 0) {
+if (updates_available.length == 0) {
   log.console("\nAll dependencies are up to date!")
   $_.stop()
   return

scripts/util.cm

@@ -4,7 +4,7 @@ return util
 
 util.dainty_assign = function (target, source) {
   Object.keys(source).forEach(function (k) {
-    if (typeof source[k] === "function") return
+    if (typeof source[k] == "function") return
     if (!(k in target)) return
     if (Array.isArray(source[k])) target[k] = deep_copy(source[k])
     else if (Object.isObject(source[k])) Object.dainty_assign(target[k], source[k])
@@ -13,41 +13,41 @@ util.dainty_assign = function (target, source) {
 }
 
 util.get = function (obj, path, defValue) {
-  if (!path) return undefined
+  if (!path) return null
   var pathArray = Array.isArray(path) ? path : path.match(/([^[.\]])+/g)
   var result = pathArray.reduce((prevObj, key) => prevObj && prevObj[key], obj)
-  return result === undefined ? defValue : result
+  return result == null ? defValue : result
 }
 
 util.isEmpty = function(o) {
-  return Object.keys(o).length === 0
+  return Object.keys(o).length == 0
 }
 
-util.dig = function (obj, path, def = {}) {
+util.dig = function (obj, path, deflt = {}) {
   var pp = path.split(".")
   for (var i = 0; i < pp.length - 1; i++) {
     obj = obj[pp[i]] = obj[pp[i]] || {}
   }
-  obj[pp[pp.length - 1]] = def
-  return def
+  obj[pp[pp.length - 1]] = deflt
+  return deflt
 }
 
 util.access = function (obj, name) {
   var dig = name.split(".")
   for (var i of dig) {
     obj = obj[i]
-    if (!obj) return undefined
+    if (!obj) return null
   }
   return obj
 }
 
 util.mergekey = function (o1, o2, k) {
   if (!o2) return
-  if (typeof o2[k] === "object") {
+  if (typeof o2[k] == "object") {
     if (Array.isArray(o2[k])) o1[k] = deep_copy(o2[k])
     else {
       if (!o1[k]) o1[k] = {}
-      if (typeof o1[k] === "object") util.merge(o1[k], o2[k])
+      if (typeof o1[k] == "object") util.merge(o1[k], o2[k])
       else o1[k] = o2[k]
     }
   } else o1[k] = o2[k]
@@ -74,15 +74,15 @@ util.obj_lerp = function(a,b,t) {
 }
 
 util.normalizeSpacing = function normalizeSpacing(spacing) {
-  if (typeof spacing === 'number') {
+  if (typeof spacing == 'number') {
     return {l: spacing, r: spacing, t: spacing, b: spacing}
   } else if (Array.isArray(spacing)) {
-    if (spacing.length === 2) {
+    if (spacing.length == 2) {
       return {l: spacing[0], r: spacing[0], t: spacing[1], b: spacing[1]}
-    } else if (spacing.length === 4) {
+    } else if (spacing.length == 4) {
       return {l: spacing[0], r: spacing[1], t: spacing[2], b: spacing[3]}
     }
-  } else if (typeof spacing === 'object') {
+  } else if (typeof spacing == 'object') {
     return {l: spacing.l || 0, r: spacing.r || 0, t: spacing.t || 0, b: spacing.b || 0}
   } else {
     return {l:0, r:0, t:0, b:0}

scripts/wota.cm

@@ -33,11 +33,11 @@ This function serializes JavaScript values (such as numbers, strings, booleans,
 
 wota.decode[cell.DOC] = `Decode a WOTA-encoded ArrayBuffer into a JavaScript value.
 
-This function deserializes a WOTA-formatted ArrayBuffer into its corresponding JavaScript representation, such as a number, string, boolean, array, object, or ArrayBuffer. If the input is invalid or empty, it returns undefined.
+This function deserializes a WOTA-formatted ArrayBuffer into its corresponding JavaScript representation, such as a number, string, boolean, array, object, or ArrayBuffer. If the input is invalid or empty, it returns null.
 
 :param buffer: An ArrayBuffer containing WOTA-encoded data to decode.
 :param reviver: An optional function that transforms the decoded values.
-:return: The decoded JavaScript value (e.g., number, string, boolean, array, object, or ArrayBuffer), or undefined if no argument is provided.
+:return: The decoded JavaScript value (e.g., number, string, boolean, array, object, or ArrayBuffer), or null if no argument is provided.
 `
 
 return wota

source/cell.c

@@ -378,7 +378,7 @@ void actor_unneeded(cell_rt *actor, JSValue fn, double seconds)
   JS_FreeValue(actor->context, actor->unneeded);
   
   if (!JS_IsFunction(actor->context, fn)) {
-    actor->unneeded = JS_UNDEFINED;
+    actor->unneeded = JS_NULL;
     goto END;
   }
   
@@ -398,10 +398,10 @@ cell_rt *create_actor(void *wota)
   cell_rt *actor = calloc(sizeof(*actor), 1);
   actor->heap = mi_heap_new();
   actor->init_wota = wota;
-  actor->idx_buffer = JS_UNDEFINED;
-  actor->message_handle = JS_UNDEFINED;
-  actor->unneeded = JS_UNDEFINED;
-  actor->on_exception = JS_UNDEFINED;
+  actor->idx_buffer = JS_NULL;
+  actor->message_handle = JS_NULL;
+  actor->unneeded = JS_NULL;
+  actor->on_exception = JS_NULL;
   actor->actor_sym = JS_ATOM_NULL;
 
   arrsetcap(actor->letters, 5);
@@ -476,9 +476,9 @@ static Uint32 actor_remove_cb(cell_rt *actor, Uint32 id, Uint32 interval)
 {
   actor->disrupt = 1;
   
-  if (!JS_IsUndefined(actor->unneeded)) {
+  if (!JS_IsNull(actor->unneeded)) {
     SDL_LockMutex(actor->mutex);
-    JSValue ret = JS_Call(actor->context, actor->unneeded, JS_UNDEFINED, 0, NULL);
+    JSValue ret = JS_Call(actor->context, actor->unneeded, JS_NULL, 0, NULL);
     uncaught_exception(actor->context, ret);
     SDL_UnlockMutex(actor->mutex);
   }
@@ -574,11 +574,11 @@ void actor_turn(cell_rt *actor)
     size_t size = l.blob_data->length / 8; // Convert bits to bytes
     JSValue arg = js_new_blob_stoned_copy(actor->context, l.blob_data->data, size);
     blob_destroy(l.blob_data);
-    result = JS_Call(actor->context, actor->message_handle, JS_UNDEFINED, 1, &arg);
+    result = JS_Call(actor->context, actor->message_handle, JS_NULL, 1, &arg);
     uncaught_exception(actor->context, result);
     JS_FreeValue(actor->context, arg);
   } else if (l.type == LETTER_CALLBACK) {
-    result = JS_Call(actor->context, l.callback, JS_UNDEFINED, 0, NULL);
+    result = JS_Call(actor->context, l.callback, JS_NULL, 0, NULL);
     uncaught_exception(actor->context, result);
     JS_FreeValue(actor->context, l.callback);
   }
@@ -627,7 +627,7 @@ JSValue js_actor_delay(JSContext *js, JSValue self, int argc, JSValue *argv)
   JS_ToFloat64(js, &seconds, argv[1]);
   if (seconds <= 0) {
     actor_clock(actor, argv[0]);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   SDL_LockMutex(actor->msg_mutex);
@@ -643,11 +643,11 @@ JSValue js_actor_removetimer(JSContext *js, JSValue self, int argc, JSValue *arg
   cell_rt *actor = JS_GetContextOpaque(js);
   uint32_t timer_id;
   JS_ToUint32(js, &timer_id, argv[0]);
-  if (timer_id == -1) return JS_UNDEFINED;
+  if (timer_id == -1) return JS_NULL;
   
   SDL_RemoveTimer(timer_id);
   
-  JSValue cb = JS_UNDEFINED;
+  JSValue cb = JS_NULL;
   
   SDL_LockMutex(actor->msg_mutex);
   int id = hmgeti(actor->timers, timer_id);
@@ -659,7 +659,7 @@ JSValue js_actor_removetimer(JSContext *js, JSValue self, int argc, JSValue *arg
   
   JS_FreeValue(js,cb);
 
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Wrapper struct to keep the array pointer stable
@@ -770,7 +770,7 @@ void script_startup(cell_rt *prt)
   data[stat.filesize] = 0;
 
   prt->state = ACTOR_RUNNING;
-  JSValue v = JS_Eval(js, data, (size_t)stat.filesize, ENGINE, JS_EVAL_FLAG_STRICT);
+  JSValue v = JS_Eval(js, data, (size_t)stat.filesize, ENGINE, 0);
   uncaught_exception(js, v);
   prt->state = ACTOR_IDLE;
   set_actor_state(prt);
@@ -788,7 +788,7 @@ int uncaught_exception(JSContext *js, JSValue v)
   }
   
   JSValue exp = JS_GetException(js);
-  JSValue ret = JS_Call(js, rt->on_exception, JS_UNDEFINED, 1, &exp);
+  JSValue ret = JS_Call(js, rt->on_exception, JS_NULL, 1, &exp);
   JS_FreeValue(js,ret);  
   JS_FreeValue(js, exp);
   JS_FreeValue(js,v);
@@ -870,7 +870,80 @@ int main(int argc, char **argv)
   int profile_enabled = 0;
   int script_start = 1;
 
-  /* Check for --profile flag first */
+  /* Check for --script flag - execute script directly without engine */
+  if (argc > 2 && strcmp(argv[1], "--script") == 0) {
+    /* Read and execute the script file */
+    FILE *f = fopen(argv[2], "rb");
+    if (!f) {
+      perror("fopen");
+      return 1;
+    }
+    
+    fseek(f, 0, SEEK_END);
+    long size = ftell(f);
+    if (size < 0) {
+      perror("ftell");
+      fclose(f);
+      return 1;
+    }
+    
+    char *script = malloc(size + 1);
+    if (!script) {
+      perror("malloc");
+      fclose(f);
+      return 1;
+    }
+    
+    rewind(f);
+    if (fread(script, 1, size, f) != size) {
+      perror("fread");
+      free(script);
+      fclose(f);
+      return 1;
+    }
+    fclose(f);
+    script[size] = '\0';
+    
+    /* Create minimal JS runtime */
+    JSRuntime *rt = JS_NewRuntime();
+    JSContext *js = JS_NewContextRaw(rt);
+    
+    /* Add basic intrinsics */
+    JS_AddIntrinsicBaseObjects(js);
+    JS_AddIntrinsicEval(js);
+    JS_AddIntrinsicRegExp(js);
+    JS_AddIntrinsicJSON(js);
+    JS_AddIntrinsicMapSet(js);
+    JS_AddIntrinsicProxy(js);
+    
+    cell_rt *prt = malloc(sizeof(*prt));
+    JS_SetContextOpaque(js, prt);
+    
+    /* Load FFI functions */
+    ffi_load(js);
+    
+    /* Execute the script */
+    JSValue result = JS_Eval(js, script, size, argv[2], 0);
+    free(script);
+    
+    /* Check for exceptions */
+    if (JS_IsException(result)) {
+      JSValue exp = JS_GetException(js);
+      const char *str = JS_ToCString(js, exp);
+      if (str) {
+        fprintf(stderr, "Exception: %s\n", str);
+        JS_FreeCString(js, str);
+      }
+      JS_FreeValue(js, exp);
+    }
+    
+    JS_FreeValue(js, result);
+    JS_FreeContext(js);
+    JS_FreeRuntime(rt);
+    return 0;
+  }
+
+  /* Check for --profile flag */
   if (argc > 1 && strcmp(argv[1], "--profile") == 0) {
     profile_enabled = 1; script_start = 2;
   }

source/jsffi.c

@@ -170,33 +170,6 @@ typedef struct texture_vertex {
   uint8_t r, g, b,a;
 } texture_vertex;
 
-
-static inline size_t typed_array_bytes(JSTypedArrayEnum type) {
-    switch(type) {
-        case JS_TYPED_ARRAY_UINT8C:
-        case JS_TYPED_ARRAY_INT8:
-        case JS_TYPED_ARRAY_UINT8:
-            return 1;
-
-        case JS_TYPED_ARRAY_INT16:
-        case JS_TYPED_ARRAY_UINT16:
-            return 2;
-
-        case JS_TYPED_ARRAY_INT32:
-        case JS_TYPED_ARRAY_UINT32:
-        case JS_TYPED_ARRAY_FLOAT32:
-            return 4;
-
-        case JS_TYPED_ARRAY_BIG_INT64:
-        case JS_TYPED_ARRAY_BIG_UINT64:
-        case JS_TYPED_ARRAY_FLOAT64:
-            return 8;
-
-        default:
-            return 0; // Return 0 for unknown types
-    }
-}
-
 #define JS_GETNUM(JS,VAL,I,TO,TYPE) { \
 JSValue val = JS_GetPropertyUint32(JS,VAL,I); \
 TO = js2##TYPE(JS, val); \
@@ -270,34 +243,36 @@ void free_gpu_buffer(JSRuntime *rt, void *opaque, void *ptr)
 JSValue make_gpu_buffer(JSContext *js, void *data, size_t size, int type, int elements, int copy, int index)
 {
   JSValue tstack[3];
-  tstack[1] = JS_UNDEFINED;
-  tstack[2] = JS_UNDEFINED;
+  tstack[1] = JS_NULL;
+  tstack[2] = JS_NULL;
   // TODO: always copying; implement "takeover"
     tstack[0] = js_new_blob_stoned_copy(js,data,size);//, make_gpu_buffer, NULL, 1);
-  JSValue ret =  JS_NewTypedArray(js, 3, tstack, type);
-  JS_SetPropertyStr(js,ret,"stride", number2js(js,typed_array_bytes(type)*elements));
-  JS_SetPropertyStr(js,ret,"elen", number2js(js,typed_array_bytes(type)));
-  JS_SetPropertyStr(js,ret,"index", JS_NewBool(js,index));
-  JS_FreeValue(js,tstack[0]);
-  return ret;
+//  JSValue ret =  JS_NewTypedArray(js, 3, tstack, type);
+//  JS_SetPropertyStr(js,ret,"stride", number2js(js,typed_array_bytes(type)*elements));
+//  JS_SetPropertyStr(js,ret,"elen", number2js(js,typed_array_bytes(type)));
+//  JS_SetPropertyStr(js,ret,"index", JS_NewBool(js,index));
+//  JS_FreeValue(js,tstack[0]);
+//  return ret;
+  return JS_NULL;
 }
 
 void *get_gpu_buffer(JSContext *js, JSValue argv, size_t *stride, size_t *size)
 {
-  size_t o, len, bytes, msize;
+  return NULL;
+/*  size_t o, len, bytes, msize;
   JSValue buf = JS_GetTypedArrayBuffer(js, argv, &o, &len, &bytes);
   void *data = js_get_blob_data(js, &msize, buf);
   JS_FreeValue(js,buf); 
   if (stride) *stride = js_getnum_str(js, argv, "stride");
   if (size) *size = msize;
-  return data;
+  return data;*/
 }
 
 JSValue make_quad_indices_buffer(JSContext *js, int quads)
 {
   cell_rt *rt = JS_GetContextOpaque(js);
   int count = quads*6;
-  if (!JS_IsUndefined(rt->idx_buffer) && rt->idx_count >= count)
+  if (!JS_IsNull(rt->idx_buffer) && rt->idx_count >= count)
     return JS_DupValue(js,rt->idx_buffer);
 
   int verts = quads*4;
@@ -311,10 +286,10 @@ JSValue make_quad_indices_buffer(JSContext *js, int quads)
     indices[i+5] = v+1;
   }
 
-  if (!JS_IsUndefined(rt->idx_buffer))
+  if (!JS_IsNull(rt->idx_buffer))
     JS_FreeValue(js,rt->idx_buffer);
     
-  rt->idx_buffer = make_gpu_buffer(js,indices, sizeof(*indices)*count, JS_TYPED_ARRAY_UINT16, 1,0,1);
+//  rt->idx_buffer = make_gpu_buffer(js,indices, sizeof(*indices)*count, JS_TYPED_ARRAY_UINT16, 1,0,1);
   rt->idx_count = count;
   return JS_DupValue(js,rt->idx_buffer);
 }
@@ -333,9 +308,9 @@ JSValue quads_to_mesh(JSContext *js, text_vert *buffer)
     color[i] = buffer[i].color;
   }
 
-  JSValue jspos = make_gpu_buffer(js, pos, sizeof(HMM_Vec2)*arrlen(buffer), JS_TYPED_ARRAY_FLOAT32, 2,0,0);
-  JSValue jsuv = make_gpu_buffer(js, uv, sizeof(HMM_Vec2)*arrlen(buffer), JS_TYPED_ARRAY_FLOAT32, 2,0,0);
-  JSValue jscolor = make_gpu_buffer(js, color, sizeof(HMM_Vec4)*arrlen(buffer), JS_TYPED_ARRAY_FLOAT32, 4,0,0);
+  JSValue jspos = make_gpu_buffer(js, pos, sizeof(HMM_Vec2)*arrlen(buffer), 0, 2,0,0);
+  JSValue jsuv = make_gpu_buffer(js, uv, sizeof(HMM_Vec2)*arrlen(buffer), 0, 2,0,0);
+  JSValue jscolor = make_gpu_buffer(js, color, sizeof(HMM_Vec4)*arrlen(buffer), 0, 4,0,0);
 
   size_t quads = verts/4;
   size_t count = verts/2*3;
@@ -405,10 +380,10 @@ double js2angle(JSContext *js,JSValue v) {
 typedef HMM_Vec4 colorf;
 
 colorf js2color(JSContext *js,JSValue v) {
-  if (JS_IsUndefined(v)) return (colorf){1,1,1,1};
+  if (JS_IsNull(v)) return (colorf){1,1,1,1};
   JSValue c[4];
   for (int i = 0; i < 4; i++) c[i] = JS_GetPropertyUint32(js,v,i);
-  float a = JS_IsUndefined(c[3]) ? 1.0 : js2number(js,c[3]);
+  float a = JS_IsNull(c[3]) ? 1.0 : js2number(js,c[3]);
   colorf color = {
     .r = js2number(js,c[0]),
     .g = js2number(js,c[1]),
@@ -557,7 +532,7 @@ JSValue vecarr2js(JSContext *js,HMM_Vec2 *points, int n) {
 }
 
 rect js2rect(JSContext *js,JSValue v) {
-  if (JS_IsUndefined(v)) return (rect){0,0,1,1};
+  if (JS_IsNull(v)) return (rect){0,0,1,1};
   rect rect;
   JS_GETATOM(js,rect.x,v,x,number)
   JS_GETATOM(js,rect.y,v,y,number)
@@ -575,7 +550,7 @@ rect js2rect(JSContext *js,JSValue v) {
 
 irect js2irect(JSContext *js, JSValue v)
 {
-  if (JS_IsUndefined(v)) return (irect){0,0,1,1};
+  if (JS_IsNull(v)) return (irect){0,0,1,1};
   irect rect;
   JS_GETATOM(js,rect.x,v,x,number)
   JS_GETATOM(js,rect.y,v,y,number)
@@ -719,7 +694,7 @@ JSC_CCALL(os_make_text_buffer,
 JSValue js_util_camera_globals(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   JSValue camera = argv[0];
-  if(JS_IsUndefined(camera)) return JS_UNDEFINED;
+  if(JS_IsNull(camera)) return JS_NULL;
 
   HMM_Vec2  size; HMM_Vec3 pos; HMM_Quat rotation;
   double    fov = 0; int ortho; double near_z = 0; double far_z = 0;
@@ -840,10 +815,10 @@ JSC_CCALL(array_lerp,
 )
 
 JSValue js_array_get_x(JSContext *js, JSValue self)  { return JS_GetPropertyUint32(js,self,0); }
-JSValue js_array_set_x(JSContext *js, JSValue self, JSValue val) { JS_SetPropertyUint32(js,self,0,val); return JS_UNDEFINED; }
+JSValue js_array_set_x(JSContext *js, JSValue self, JSValue val) { JS_SetPropertyUint32(js,self,0,val); return JS_NULL; }
 
 JSValue js_array_get_y(JSContext *js, JSValue self) { return JS_GetPropertyUint32(js,self,1); }
-JSValue js_array_set_y(JSContext *js, JSValue self, JSValue val) { JS_SetPropertyUint32(js,self,1,val); return JS_UNDEFINED; }
+JSValue js_array_set_y(JSContext *js, JSValue self, JSValue val) { JS_SetPropertyUint32(js,self,1,val); return JS_NULL; }
 
 JSValue js_array_get_xy(JSContext *js, JSValue self)
 {
@@ -857,7 +832,7 @@ JSValue js_array_set_xy(JSContext *js, JSValue self, JSValue v)
 {
   JS_SetPropertyUint32(js,self,0,JS_GetPropertyUint32(js,v,0));
   JS_SetPropertyUint32(js,self,1,JS_GetPropertyUint32(js,v,1));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Single-value accessors
@@ -866,25 +841,25 @@ JSValue js_array_get_r(JSContext *js, JSValue self)
 { return JS_GetPropertyUint32(js, self, 0); }
 
 JSValue js_array_set_r(JSContext *js, JSValue self, JSValue val)
-{ JS_SetPropertyUint32(js, self, 0, val); return JS_UNDEFINED; }
+{ JS_SetPropertyUint32(js, self, 0, val); return JS_NULL; }
 
 JSValue js_array_get_g(JSContext *js, JSValue self)
 { return JS_GetPropertyUint32(js, self, 1); }
 
 JSValue js_array_set_g(JSContext *js, JSValue self, JSValue val)
-{ JS_SetPropertyUint32(js, self, 1, val); return JS_UNDEFINED; }
+{ JS_SetPropertyUint32(js, self, 1, val); return JS_NULL; }
 
 JSValue js_array_get_b(JSContext *js, JSValue self)
 { return JS_GetPropertyUint32(js, self, 2); }
 
 JSValue js_array_set_b(JSContext *js, JSValue self, JSValue val)
-{ JS_SetPropertyUint32(js, self, 2, val); return JS_UNDEFINED; }
+{ JS_SetPropertyUint32(js, self, 2, val); return JS_NULL; }
 
 JSValue js_array_get_a(JSContext *js, JSValue self)
 { return JS_GetPropertyUint32(js, self, 3); }
 
 JSValue js_array_set_a(JSContext *js, JSValue self, JSValue val)
-{ JS_SetPropertyUint32(js, self, 3, val); return JS_UNDEFINED; }
+{ JS_SetPropertyUint32(js, self, 3, val); return JS_NULL; }
 
 // Multi-value accessors
 
@@ -902,7 +877,7 @@ JSValue js_array_set_rgb(JSContext *js, JSValue self, JSValue val)
   JS_SetPropertyUint32(js, self, 0, JS_GetPropertyUint32(js, val, 0));
   JS_SetPropertyUint32(js, self, 1, JS_GetPropertyUint32(js, val, 1));
   JS_SetPropertyUint32(js, self, 2, JS_GetPropertyUint32(js, val, 2));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_array_get_rgba(JSContext *js, JSValue self)
@@ -921,7 +896,7 @@ JSValue js_array_set_rgba(JSContext *js, JSValue self, JSValue val)
   JS_SetPropertyUint32(js, self, 1, JS_GetPropertyUint32(js, val, 1));
   JS_SetPropertyUint32(js, self, 2, JS_GetPropertyUint32(js, val, 2));
   JS_SetPropertyUint32(js, self, 3, JS_GetPropertyUint32(js, val, 3));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static const JSCFunctionListEntry js_array_funcs[] = {
@@ -1239,10 +1214,12 @@ JSValue make_color_buffer(JSContext *js, colorf c, int verts)
   for (int i = 0; i < verts; i++)
     colordata[i] = c;
 
-  return make_gpu_buffer(js, colordata, sizeof(*colordata)*verts, JS_TYPED_ARRAY_FLOAT32, 4, 0, 0);
+  return make_gpu_buffer(js, colordata, sizeof(*colordata)*verts, 0, 4, 0, 0);
 }
 
 JSC_CCALL(os_make_line_prim,
+  return JS_NULL;
+  /*
   JSValue prim = JS_NewObject(js);
   HMM_Vec2 *v = js2cpvec2arr(js,argv[0]);
   
@@ -1262,7 +1239,7 @@ JSC_CCALL(os_make_line_prim,
     .closed = JS_ToBool(js,argv[3])
   });
 
-  JS_SetPropertyStr(js, prim, "pos", make_gpu_buffer(js,m->positions,sizeof(*m->positions)*m->num_vertices, JS_TYPED_ARRAY_FLOAT32, 2,1,0));
+  JS_SetPropertyStr(js, prim, "pos", make_gpu_buffer(js,m->positions,sizeof(*m->positions)*m->num_vertices, 0, 2,1,0));
   
   JS_SetPropertyStr(js, prim, "indices", make_gpu_buffer(js,m->triangle_indices,sizeof(*m->triangle_indices)*m->num_triangles*3, JS_TYPED_ARRAY_UINT32, 1,1,1));
   
@@ -1272,7 +1249,7 @@ JSC_CCALL(os_make_line_prim,
     uv[i*2+1] = m->annotations[i].v_across_curve;
   }
 
-  JS_SetPropertyStr(js, prim, "uv", make_gpu_buffer(js, uv, sizeof(uv), JS_TYPED_ARRAY_FLOAT32,2,1,0));
+  JS_SetPropertyStr(js, prim, "uv", make_gpu_buffer(js, uv, sizeof(uv), 0,2,1,0));
   JS_SetPropertyStr(js,prim,"vertices", number2js(js,m->num_vertices));
   JS_SetPropertyStr(js,prim,"color",make_color_buffer(js,js2color(js,argv[4]), m->num_vertices));
   JS_SetPropertyStr(js,prim,"num_indices", number2js(js,m->num_triangles*3));
@@ -1281,10 +1258,11 @@ JSC_CCALL(os_make_line_prim,
   parsl_destroy_context(par_ctx);
   
   return prim;
+  */
 )
 
 static void render_frame(plm_t *mpeg, plm_frame_t *frame, datastream *ds) {
-  if (JS_IsUndefined(ds->callback)) return;
+  if (JS_IsNull(ds->callback)) return;
   uint8_t *rgb = malloc(frame->height*frame->width*4);
   memset(rgb,255,frame->height*frame->width*4);
   plm_frame_to_rgba(frame, rgb, frame->width*4);
@@ -1300,7 +1278,7 @@ static void render_frame(plm_t *mpeg, plm_frame_t *frame, datastream *ds) {
   JSValue s[1];
   s[0] = surfData;
   JSValue cb = JS_DupValue(ds->js,ds->callback);
-  JSValue ret = JS_Call(ds->js, cb, JS_UNDEFINED, 1, s);
+  JSValue ret = JS_Call(ds->js, cb, JS_NULL, 1, s);
   JS_FreeValue(ds->js,cb);
   free(rgb);
   uncaught_exception(ds->js,ret);
@@ -1312,7 +1290,7 @@ JSC_CCALL(os_make_video,
   datastream *ds = ds_openvideo(data, len);
   if (!ds) return JS_ThrowReferenceError(js, "Video file was not valid.");
   ds->js = js;
-  ds->callback = JS_UNDEFINED;
+  ds->callback = JS_NULL;
   plm_set_video_decode_callback(ds->plm, render_frame, ds);
   return datastream2js(js,ds);  
 )
@@ -1336,7 +1314,7 @@ JSC_CCALL(os_rectpack,
   int packed = stbrp_pack_rects(ctx, rects, num);
   
   if (!packed) {
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   ret = JS_NewArray(js);
@@ -1361,7 +1339,7 @@ JSC_CCALL(os_insertion_sort,
     while (j >= 0) {
       JSValue arr_j = JS_GetPropertyUint32(js, arr, j);
 
-      JSValue ret = JS_Call(js, cmp, JS_UNDEFINED, 2, (JSValue[]){ arr_j, key });
+      JSValue ret = JS_Call(js, cmp, JS_NULL, 2, (JSValue[]){ arr_j, key });
       if (JS_IsException(ret)) {
         JS_FreeValue(js,arr_j);
         JS_FreeValue(js,key);
@@ -1389,13 +1367,13 @@ JSC_CCALL(os_power_state,
   SDL_PowerState state = SDL_GetPowerInfo(NULL, NULL);
   switch(state) {
   case SDL_POWERSTATE_ERROR: return JS_ThrowTypeError(js, "Error determining power status");
-  case SDL_POWERSTATE_UNKNOWN: return JS_UNDEFINED;
+  case SDL_POWERSTATE_UNKNOWN: return JS_NULL;
   case SDL_POWERSTATE_ON_BATTERY: return JS_NewString(js, "on battery");
   case SDL_POWERSTATE_NO_BATTERY: return JS_NewString(js, "no battery");
   case SDL_POWERSTATE_CHARGING: return JS_NewString(js, "charging");
   case SDL_POWERSTATE_CHARGED: return JS_NewString(js, "charged");
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(os_cull_sprites,
@@ -1530,7 +1508,6 @@ js_##NAME = JS_NewObject(js); \
 JS_SetPropertyFunctionList(js, js_##NAME, js_##NAME##_funcs, countof(js_##NAME##_funcs)); \
 JS_SetPrototype(js, js_##NAME, PARENT); \
 
-JSValue js_layout_use(JSContext *js);
 JSValue js_miniz_use(JSContext *js);
 JSValue js_num_use(JSContext *js);
 
@@ -1569,6 +1546,7 @@ JSC_CCALL(os_value_id,
 #include "qjs_wota.h"
 #include "qjs_socket.h"
 #include "qjs_nota.h"
+#include "qjs_ffi.h"
 
 //JSValue js_imgui_use(JSContext *js);
 #define MISTLINE(NAME) (ModuleEntry){#NAME, js_##NAME##_use}
@@ -1604,6 +1582,7 @@ void ffi_load(JSContext *js)
   arrput(rt->module_registry, MISTLINE(text));
   arrput(rt->module_registry, MISTLINE(wota));
   arrput(rt->module_registry, MISTLINE(nota));
+  arrput(rt->module_registry, MISTLINE(ffi));
 
   // power user
   arrput(rt->module_registry, MISTLINE(js));
@@ -1621,7 +1600,6 @@ void ffi_load(JSContext *js)
   arrput(rt->module_registry, MISTLINE(graphics));
   arrput(rt->module_registry, MISTLINE(video));
   arrput(rt->module_registry, MISTLINE(soloud));
-  arrput(rt->module_registry, MISTLINE(layout)); 
 
 //  arrput(rt->module_registry, MISTLINE(imgui));
   arrput(rt->module_registry, ((ModuleEntry){"camera", js_camera_use}));
@@ -1670,7 +1648,7 @@ void ffi_load(JSContext *js)
   
   const char actorsym_script[] = "var sym = Symbol(`actordata`); sym;";
   
-  JSValue actorsym = JS_Eval(js, actorsym_script, sizeof(actorsym_script)-1, "internal", JS_EVAL_FLAG_STRICT);
+  JSValue actorsym = JS_Eval(js, actorsym_script, sizeof(actorsym_script)-1, "internal", 0);
   
   JS_SetPropertyStr(js, hidden_fn, "actorsym", actorsym);
   

source/qjs_actor.c

@@ -20,7 +20,7 @@ cell_rt *js2actor(JSContext *js, JSValue v)
   cell_rt *crt = JS_GetContextOpaque(js);
   JSValue actor_data = JS_GetProperty(js, v, crt->actor_sym);
   
-  if (JS_IsUndefined(actor_data)) {
+  if (JS_IsNull(actor_data)) {
     JS_FreeValue(js, actor_data);
     return NULL;
   }
@@ -28,7 +28,7 @@ cell_rt *js2actor(JSContext *js, JSValue v)
   JSValue id_val = JS_GetPropertyStr(js, actor_data, "id");
   JS_FreeValue(js, actor_data);
   
-  if (JS_IsUndefined(id_val)) {
+  if (JS_IsNull(id_val)) {
     JS_FreeValue(js, id_val);
     return NULL;
   }
@@ -78,7 +78,7 @@ JSC_CCALL(os_createactor,
   if (rt->disrupt)
     return JS_ThrowInternalError(js, "Can't start a new actor while disrupting.");
 
-  void *startup = value2wota(js, argv[0], JS_UNDEFINED, NULL);
+  void *startup = value2wota(js, argv[0], JS_NULL, NULL);
   create_actor(startup);
 )
 
@@ -98,7 +98,7 @@ JSC_CCALL(os_mailbox_push,
   JS_FreeCString(js,id);  
     
 /*  JSValue sys = JS_GetPropertyStr(js, argv[1], "__SYSTEM__");
-  if (!JS_IsUndefined(sys)) {
+  if (!JS_IsNull(sys)) {
     const char *k = JS_ToCString(js,sys);
     int stop = 0;
     if (strcmp(k, "stop") == 0) {
@@ -108,7 +108,7 @@ JSC_CCALL(os_mailbox_push,
     JS_FreeValue(js,sys);
     JS_FreeCString(js,k);
     
-    if (stop) return JS_UNDEFINED;
+    if (stop) return JS_NULL;
   }
 */    
   size_t size;

source/qjs_blob.c

@@ -60,7 +60,7 @@ static JSValue js_blob_constructor(JSContext *ctx, JSValueConst new_target,
         
         size_t bits_written = 0;
         while (bits_written < length_bits) {
-          JSValue randval = JS_Call(ctx, argv[1], JS_UNDEFINED, 0, NULL);
+          JSValue randval = JS_Call(ctx, argv[1], JS_NULL, 0, NULL);
           if (JS_IsException(randval)) {
             blob_destroy(bd);
             return JS_EXCEPTION;
@@ -151,7 +151,7 @@ static JSValue js_blob_write_bit(JSContext *ctx, JSValueConst this_val,
   if (blob_write_bit(bd, bit_val) < 0) {
     return JS_ThrowTypeError(ctx, "write_bit: cannot write (maybe stone or OOM)");
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.write_blob(second_blob)
@@ -173,7 +173,7 @@ static JSValue js_blob_write_blob(JSContext *ctx, JSValueConst this_val,
     return JS_ThrowTypeError(ctx, "write_blob: cannot write to stone blob or OOM");
   }
   
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.write_dec64(number)
@@ -194,7 +194,7 @@ static JSValue js_blob_write_number(JSContext *ctx, JSValueConst this_val,
   if (blob_write_dec64(bd, d) < 0)
     return JS_ThrowTypeError(ctx, "write_dec64: cannot write to stone blob or OOM");
   
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.write_fit(value, len)
@@ -217,7 +217,7 @@ static JSValue js_blob_write_fit(JSContext *ctx, JSValueConst this_val,
     return JS_ThrowTypeError(ctx, "write_fit: value doesn't fit in specified bits, stone blob, or OOM");
   }
   
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.write_kim(fit)
@@ -239,7 +239,7 @@ static JSValue js_blob_write_text(JSContext *ctx, JSValueConst this_val,
   }
   
   JS_FreeCString(ctx,str);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.write_pad(block_size)
@@ -258,7 +258,7 @@ static JSValue js_blob_write_pad(JSContext *ctx, JSValueConst this_val,
   if (blob_write_pad(bd, block_size) < 0)
     return JS_ThrowTypeError(ctx, "write_pad: cannot write (stone blob, OOM, or invalid block size)");
   
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // blob.read_logical(from)
@@ -439,7 +439,7 @@ static JSValue js_blob_stone(JSContext *ctx, JSValueConst this_val,
   if (!bd->is_stone) {
     blob_make_stone(bd);
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_blob_stonep(JSContext *ctx, JSValueConst this_val,

source/qjs_dmon.c

@@ -73,7 +73,7 @@ JSValue js_dmon_watch(JSContext *js, JSValue self, int argc, JSValue *argv)
     return JS_ThrowReferenceError(js, "Already watching a directory.");
 
   watched = dmon_watch(".", watch_cb, DMON_WATCHFLAGS_RECURSIVE, NULL);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_dmon_unwatch(JSContext *js, JSValue self, int argc, JSValue *argv)
@@ -83,7 +83,7 @@ JSValue js_dmon_unwatch(JSContext *js, JSValue self, int argc, JSValue *argv)
     
   dmon_unwatch(watched);
   watched.id = 0;
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_dmon_poll(JSContext *js, JSValueConst this_val, int argc, JSValueConst *argv) {
@@ -110,9 +110,9 @@ JSValue js_dmon_poll(JSContext *js, JSValueConst this_val, int argc, JSValueCons
     JS_SetPropertyStr(js, jsevent, "root", JS_NewString(js, event.rootdir));
     JS_SetPropertyStr(js, jsevent, "file", JS_NewString(js, event.filepath));
     JS_SetPropertyStr(js, jsevent, "old", JS_NewString(js, event.oldfilepath));
-    JS_Call(js, argv[0], JS_UNDEFINED, 1, &jsevent);
+    JS_Call(js, argv[0], JS_NULL, 1, &jsevent);
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static const JSCFunctionListEntry js_dmon_funcs[] = {

source/qjs_enet.c

@@ -34,13 +34,13 @@ static void js_enet_peer_finalizer(JSRuntime *rt, JSValue val)
 static JSValue js_enet_initialize(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
 {
   if (enet_initialize() != 0) return JS_ThrowInternalError(ctx, "Error initializing ENet");
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_deinitialize(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
 {
   enet_deinitialize();
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_host_create(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -163,12 +163,12 @@ static JSValue js_enet_host_service(JSContext *ctx, JSValueConst this_val, int a
         break;
     }
 
-    uncaught_exception(ctx, JS_Call(ctx, callback, JS_UNDEFINED, 1, &event_obj));
+    uncaught_exception(ctx, JS_Call(ctx, callback, JS_NULL, 1, &event_obj));
     JS_FreeValue(ctx, event_obj);
   }
 
   JS_FreeValue(ctx, callback);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 /* Host connect: client -> connect to server */
@@ -201,7 +201,7 @@ static JSValue js_enet_host_flush(JSContext *ctx, JSValueConst this_val, int arg
   ENetHost *host = JS_GetOpaque(this_val, enet_host_id);
   if (!host) return JS_EXCEPTION;
   enet_host_flush(host);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 /* Broadcast a string or ArrayBuffer */
@@ -231,7 +231,7 @@ static JSValue js_enet_host_broadcast(JSContext *ctx, JSValueConst this_val, int
   if (!packet) return JS_ThrowInternalError(ctx, "Failed to create ENet packet");
 
   enet_host_broadcast(host, 0, packet);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_host_get_port(JSContext *js, JSValueConst self, int argc, JSValueConst *argv)
@@ -264,7 +264,7 @@ static JSValue js_enet_peer_disconnect(JSContext *ctx, JSValueConst this_val, in
   ENetPeer *peer = JS_GetOpaque(this_val, enet_peer_class_id);
   if (!peer) return JS_EXCEPTION;
   enet_peer_disconnect(peer, 0);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 /* Peer send must only accept string or ArrayBuffer */
@@ -294,7 +294,7 @@ static JSValue js_enet_peer_send(JSContext *ctx, JSValueConst this_val, int argc
   if (!packet) return JS_ThrowInternalError(ctx, "Failed to create ENet packet");
 
   if (enet_peer_send(peer, 0, packet) < 0) return JS_ThrowInternalError(ctx, "Unable to send packet");
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_disconnect_now(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -302,7 +302,7 @@ static JSValue js_enet_peer_disconnect_now(JSContext *ctx, JSValueConst this_val
   ENetPeer *peer = JS_GetOpaque(this_val, enet_peer_class_id);
   if (!peer) return JS_EXCEPTION;
   enet_peer_disconnect_now(peer, 0);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_disconnect_later(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -310,7 +310,7 @@ static JSValue js_enet_peer_disconnect_later(JSContext *ctx, JSValueConst this_v
   ENetPeer *peer = JS_GetOpaque(this_val, enet_peer_class_id);
   if (!peer) return JS_EXCEPTION;
   enet_peer_disconnect_later(peer, 0);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_reset(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -318,7 +318,7 @@ static JSValue js_enet_peer_reset(JSContext *ctx, JSValueConst this_val, int arg
   ENetPeer *peer = JS_GetOpaque(this_val, enet_peer_class_id);
   if (!peer) return JS_EXCEPTION;
   enet_peer_reset(peer);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_ping(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -326,7 +326,7 @@ static JSValue js_enet_peer_ping(JSContext *ctx, JSValueConst this_val, int argc
   ENetPeer *peer = JS_GetOpaque(this_val, enet_peer_class_id);
   if (!peer) return JS_EXCEPTION;
   enet_peer_ping(peer);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_throttle_configure(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -339,7 +339,7 @@ static JSValue js_enet_peer_throttle_configure(JSContext *ctx, JSValueConst this
     return JS_ThrowTypeError(ctx, "Expected 3 int arguments: interval, acceleration, deceleration");
 
   enet_peer_throttle_configure(peer, interval, acceleration, deceleration);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_enet_peer_timeout(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
@@ -352,7 +352,7 @@ static JSValue js_enet_peer_timeout(JSContext *ctx, JSValueConst this_val, int a
     return JS_ThrowTypeError(ctx, "Expected 3 integer arguments: timeout_limit, timeout_min, timeout_max");
 
   enet_peer_timeout(peer, timeout_limit, timeout_min, timeout_max);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 /* Class definitions */
@@ -372,7 +372,7 @@ JSValue js_enet_resolve_hostname(JSContext *js, JSValue self, int argc, JSValue
   // TODO: implement
   const char *hostname = JS_ToCString(js, argv[0]);
   JS_FreeCString(js, hostname);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 /* Function lists */
@@ -525,9 +525,6 @@ static const JSCFunctionListEntry js_enet_peer_funcs[] = {
   JS_CGETSET_DEF("address", js_enet_peer_get_address, NULL),
 };
 
-/* Module entry point */
-static int js_enet_init(JSContext *ctx, JSModuleDef *m);
-
 JSValue js_enet_use(JSContext *ctx)
 {
   JS_NewClassID(&enet_host_id);

source/qjs_fd.c

@@ -147,7 +147,7 @@ JSC_CCALL(fd_fsync,
     if (fsync(fd) != 0)
         return JS_ThrowReferenceError(js, "fsync failed: %s", strerror(errno));
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(fd_close,
@@ -157,7 +157,7 @@ JSC_CCALL(fd_close,
     if (close(fd) != 0)
         return JS_ThrowReferenceError(js, "close failed: %s", strerror(errno));
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(fd_fstat,

source/qjs_ffi.c

@@ -0,0 +1,413 @@
+/*
+ * qjs_ffi.c – QuickJS ↔ libffi bridge
+ *
+ * Works on macOS / Linux / Windows.  See examples/ffi_test.js.
+ */
+
+#include "qjs_ffi.h"
+#include <ffi.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+  #include <windows.h>
+#else
+  #include <dlfcn.h>
+#endif
+
+#ifndef countof
+  #define countof(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+/* -------------------------------------------------------------------------- */
+/*  internal structs                                                          */
+/* -------------------------------------------------------------------------- */
+
+typedef struct {
+  ffi_cif   cif;
+  ffi_type **arg_types;
+  ffi_type  *ret_type;
+  void      *fn_ptr;
+  int        nargs;
+} ffi_func;
+
+typedef struct {
+  void *ptr;
+  int   is_library;          /* 1 => real dlopen/LoadLibrary handle      */
+} ffi_pointer;
+
+/* -------------------------------------------------------------------------- */
+/*  QuickJS class plumbing                                                    */
+/* -------------------------------------------------------------------------- */
+
+static JSClassID js_ffi_func_id;
+static JSClassID js_ffi_pointer_id;
+
+static void ffi_func_free(ffi_func *f)
+{
+  if (!f) return;
+
+  if (f->arg_types) {
+    for (int i = 0; i < f->nargs; i++) {
+      ffi_type *t = f->arg_types[i];
+      if (t && t != &ffi_type_void    && t != &ffi_type_pointer &&
+          t != &ffi_type_sint8   && t != &ffi_type_uint8  &&
+          t != &ffi_type_sint16  && t != &ffi_type_uint16 &&
+          t != &ffi_type_sint32  && t != &ffi_type_uint32 &&
+          t != &ffi_type_sint64  && t != &ffi_type_uint64 &&
+          t != &ffi_type_float   && t != &ffi_type_double)
+        free(t);
+    }
+    free(f->arg_types);
+  }
+
+  ffi_type *rtp = f->ret_type;
+  if (rtp && rtp != &ffi_type_void    && rtp != &ffi_type_pointer &&
+      rtp != &ffi_type_sint8   && rtp != &ffi_type_uint8  &&
+      rtp != &ffi_type_sint16  && rtp != &ffi_type_uint16 &&
+      rtp != &ffi_type_sint32  && rtp != &ffi_type_uint32 &&
+      rtp != &ffi_type_sint64  && rtp != &ffi_type_uint64 &&
+      rtp != &ffi_type_float   && rtp != &ffi_type_double)
+    free(rtp);
+
+  free(f);
+}
+
+static void ffi_func_finalizer(JSRuntime *rt, JSValue val)
+{
+  ffi_func *f = JS_GetOpaque(val, js_ffi_func_id);
+  if (f) ffi_func_free(f);
+}
+
+static void ffi_pointer_free(ffi_pointer *p)
+{
+  if (p->is_library && p->ptr) {
+#ifdef _WIN32
+    FreeLibrary((HMODULE)p->ptr);
+#else
+    dlclose(p->ptr);
+#endif
+  }
+  free(p);
+}
+
+static void ffi_pointer_finalizer(JSRuntime *rt, JSValue val)
+{
+    ffi_pointer *f = JS_GetOpaque(val, js_ffi_pointer_id);
+    if (!f) return;
+    ffi_pointer_free(f);
+}
+
+static JSClassDef js_ffi_func_class    = { "FFIFunction", .finalizer = ffi_func_finalizer };
+static JSClassDef js_ffi_pointer_class = { "FFIPointer",  .finalizer = ffi_pointer_finalizer };
+
+/* -------------------------------------------------------------------------- */
+/*  helpers                                                                   */
+/* -------------------------------------------------------------------------- */
+
+static JSValue
+js_new_ffi_pointer(JSContext *ctx, void *ptr, int is_library)
+{
+  JSValue obj = JS_NewObjectClass(ctx, js_ffi_pointer_id);
+  if (JS_IsException(obj)) return obj;
+
+  ffi_pointer *p = malloc(sizeof *p);
+  if (!p) { JS_FreeValue(ctx, obj); return JS_ThrowOutOfMemory(ctx); }
+
+  p->ptr        = ptr;
+  p->is_library = is_library;
+  JS_SetOpaque(obj, p);
+  return obj;
+}
+
+static void *
+js_get_ffi_pointer(JSContext *ctx, JSValueConst val)
+{
+  ffi_pointer *p = JS_GetOpaque2(ctx, val, js_ffi_pointer_id);
+  return p ? p->ptr : NULL;
+}
+
+static ffi_type *
+js_to_ffi_type(JSContext *ctx, const char *name)
+{
+  if (!strcmp(name, "void"))    return &ffi_type_void;
+  if (!strcmp(name, "pointer")) return &ffi_type_pointer;
+  if (!strcmp(name, "float"))   return &ffi_type_float;
+  if (!strcmp(name, "double"))  return &ffi_type_double;
+  if (!strcmp(name, "int8"))    return &ffi_type_sint8;
+  if (!strcmp(name, "uint8"))   return &ffi_type_uint8;
+  if (!strcmp(name, "int16"))   return &ffi_type_sint16;
+  if (!strcmp(name, "uint16"))  return &ffi_type_uint16;
+  if (!strcmp(name, "int32"))   return &ffi_type_sint32;
+  if (!strcmp(name, "uint32"))  return &ffi_type_uint32;
+  if (!strcmp(name, "int64"))   return &ffi_type_sint64;
+  if (!strcmp(name, "uint64"))  return &ffi_type_uint64;
+
+  /* synonyms */
+  if (!strcmp(name, "int"))     return &ffi_type_sint32;
+  if (!strcmp(name, "uint"))    return &ffi_type_uint32;
+  if (!strcmp(name, "char*") || !strcmp(name, "string"))
+    return &ffi_type_pointer;
+
+  JS_ThrowTypeError(ctx, "unknown FFI type \"%s\"", name);
+  return NULL;
+}
+
+/* -------------------------------------------------------------------------- */
+/*  ffi.dlopen                                                                */
+/* -------------------------------------------------------------------------- */
+
+static JSValue
+js_ffi_dlopen(JSContext *ctx, JSValueConst this_val,
+              int argc, JSValueConst *argv)
+{
+  if (argc < 1)
+    return JS_ThrowTypeError(ctx, "dlopen: expected path or null");
+
+  const char *path = NULL;
+  if (!JS_IsNull(argv[0])) {
+    path = JS_ToCString(ctx, argv[0]);
+    if (!path) return JS_EXCEPTION;
+  }
+
+  void *h;
+#ifdef _WIN32
+  h = path ? (void *)LoadLibraryA(path)
+           : (void *)GetModuleHandle(NULL);
+#else
+  h = path ? dlopen(path, RTLD_LAZY | RTLD_LOCAL)
+           : dlopen(NULL, RTLD_LAZY | RTLD_LOCAL);
+#endif
+  if (path) JS_FreeCString(ctx, path);
+  if (!h)   return JS_ThrowInternalError(ctx, "dlopen failed");
+
+  /* ------------- FIX: only real libraries get is_library = 1 ------------- */
+  int is_library = (path != NULL);        /* self handle must not be closed */
+  return js_new_ffi_pointer(ctx, h, is_library);
+}
+
+/* -------------------------------------------------------------------------- */
+/*  ffi.prepare (unchanged from previous answer)                              */
+/* -------------------------------------------------------------------------- */
+
+static JSValue
+js_ffi_prepare(JSContext *ctx, JSValueConst this_val,
+               int argc, JSValueConst *argv)
+{
+  if (argc < 4)
+    return JS_ThrowTypeError(ctx,
+      "prepare: expected (lib, symbol, ret_type, arg_type_array)");
+
+  void *lib = js_get_ffi_pointer(ctx, argv[0]);
+  if (!lib) return JS_ThrowTypeError(ctx, "invalid library handle");
+
+  const char *sym = JS_ToCString(ctx, argv[1]);
+  if (!sym) return JS_EXCEPTION;
+
+  void *fn;
+#ifdef _WIN32
+  fn = (void *)GetProcAddress((HMODULE)lib, sym);
+#else
+  fn = dlsym(lib, sym);
+#endif
+  if (!fn) {
+    JS_FreeCString(ctx, sym);
+    return JS_ThrowTypeError(ctx, "symbol \"%s\" not found", sym);
+  }
+
+  const char *rt_name = JS_ToCString(ctx, argv[2]);
+  if (!rt_name) { JS_FreeCString(ctx, sym); return JS_EXCEPTION; }
+  ffi_type *ret_type = js_to_ffi_type(ctx, rt_name);
+  JS_FreeCString(ctx, rt_name);
+  if (!ret_type) { JS_FreeCString(ctx, sym); return JS_EXCEPTION; }
+
+  if (!JS_IsArray(ctx, argv[3])) {
+    JS_FreeCString(ctx, sym);
+    return JS_ThrowTypeError(ctx, "arg_types must be an array");
+  }
+
+  uint32_t nargs = JS_ArrayLength(ctx, argv[3]);
+
+  ffi_func *f = calloc(1, sizeof *f);
+  if (!f) { JS_FreeCString(ctx, sym); return JS_ThrowOutOfMemory(ctx); }
+
+  f->fn_ptr   = fn;
+  f->ret_type = ret_type;
+  f->nargs    = (int)nargs;
+
+  if (nargs) {
+    f->arg_types = calloc(nargs, sizeof(ffi_type *));
+    if (!f->arg_types) {
+      JS_FreeCString(ctx, sym);
+      ffi_func_free(f);
+      return JS_ThrowOutOfMemory(ctx);
+    }
+
+    for (uint32_t i = 0; i < nargs; i++) {
+      JSValue v   = JS_GetPropertyUint32(ctx, argv[3], i);
+      const char *tn = JS_ToCString(ctx, v);
+      JS_FreeValue(ctx, v);
+      if (!tn) { JS_FreeCString(ctx, sym); ffi_func_free(f); return JS_EXCEPTION; }
+
+      f->arg_types[i] = js_to_ffi_type(ctx, tn);
+      JS_FreeCString(ctx, tn);
+      if (!f->arg_types[i]) {
+        JS_FreeCString(ctx, sym);
+        ffi_func_free(f);
+        return JS_EXCEPTION;
+      }
+    }
+  }
+
+  JS_FreeCString(ctx, sym);
+
+  if (ffi_prep_cif(&f->cif, FFI_DEFAULT_ABI,
+                   f->nargs, f->ret_type, f->arg_types) != FFI_OK) {
+    ffi_func_free(f);
+    return JS_ThrowInternalError(ctx, "ffi_prep_cif failed");
+  }
+
+  JSValue obj = JS_NewObjectClass(ctx, js_ffi_func_id);
+  JS_SetOpaque(obj, f);
+  return obj;
+}
+
+/* -------------------------------------------------------------------------- */
+/*  box_result + js_ffi_call (unchanged)                                      */
+/* -------------------------------------------------------------------------- */
+
+static JSValue
+box_result(JSContext *ctx, ffi_type *t, void *data)
+{
+  if (t == &ffi_type_void)    return JS_NULL;
+  if (t == &ffi_type_pointer) return data ? js_new_ffi_pointer(ctx, *(void **)data, 0)
+                                          : JS_NULL;
+
+  if (t == &ffi_type_double)  return JS_NewFloat64(ctx, *(double *)data);
+  if (t == &ffi_type_float)   return JS_NewFloat64(ctx, (double)*(float *)data);
+
+  if (t == &ffi_type_sint8)   return JS_NewInt32(ctx, *(int8_t  *)data);
+  if (t == &ffi_type_uint8)   return JS_NewUint32(ctx, *(uint8_t *)data);
+  if (t == &ffi_type_sint16)  return JS_NewInt32(ctx, *(int16_t *)data);
+  if (t == &ffi_type_uint16)  return JS_NewUint32(ctx, *(uint16_t *)data);
+  if (t == &ffi_type_sint32)  return JS_NewInt32(ctx, *(int32_t *)data);
+  if (t == &ffi_type_uint32)  return JS_NewUint32(ctx, *(uint32_t *)data);
+  if (t == &ffi_type_sint64)  return JS_NewFloat64(ctx, (double)*(int64_t  *)data);
+  if (t == &ffi_type_uint64)  return JS_NewFloat64(ctx, (double)*(uint64_t *)data);
+
+  return JS_ThrowTypeError(ctx, "unsupported return type");
+}
+
+static JSValue
+js_ffi_call(JSContext *ctx, JSValueConst this_val,
+            int argc, JSValueConst *argv)
+{
+  ffi_func *f = JS_GetOpaque2(ctx, this_val, js_ffi_func_id);
+  if (!f) return JS_EXCEPTION;
+  if (argc != f->nargs)
+    return JS_ThrowTypeError(ctx, "expected %d arguments, got %d",
+                             f->nargs, argc);
+
+  /* one fixed stack block per argument ----------------------------------- */
+  typedef union {
+    double    d;
+    float     f;
+    int8_t    i8;   uint8_t  u8;
+    int16_t   i16;  uint16_t u16;
+    int32_t   i32;  uint32_t u32;
+    int64_t   i64;  uint64_t u64;
+    void     *p;
+  } arg_data_t;
+
+  arg_data_t  data[f->nargs];
+  void       *values[f->nargs];
+  const char *tmp_cstr[f->nargs];          /* only for JS strings */
+  memset(tmp_cstr, 0, sizeof tmp_cstr);
+
+  /* ---------- marshal JS → C  (no malloc for scalars) ------------------- */
+  for (int i = 0; i < f->nargs; i++) {
+    ffi_type *t = f->arg_types[i];
+
+    /* numbers ------------------------------------------------------------ */
+    if (t != &ffi_type_pointer) {
+      double d;
+      if (JS_ToFloat64(ctx, &d, argv[i]))
+        goto arg_error;
+
+      if      (t == &ffi_type_double)  data[i].d  = d;
+      else if (t == &ffi_type_float)   data[i].f  = (float)d;
+      else if (t == &ffi_type_sint8)   data[i].i8 = (int8_t)d;
+      else if (t == &ffi_type_uint8)   data[i].u8 = (uint8_t)d;
+      else if (t == &ffi_type_sint16)  data[i].i16= (int16_t)d;
+      else if (t == &ffi_type_uint16)  data[i].u16= (uint16_t)d;
+      else if (t == &ffi_type_sint32)  data[i].i32= (int32_t)d;
+      else if (t == &ffi_type_uint32)  data[i].u32= (uint32_t)d;
+      else if (t == &ffi_type_sint64)  data[i].i64= (int64_t)d;
+      else if (t == &ffi_type_uint64)  data[i].u64= (uint64_t)d;
+      else goto arg_error;  /* should be unreachable */
+
+      values[i] = &data[i];
+      continue;
+    }
+
+    /* pointers ----------------------------------------------------------- */
+    if (JS_IsString(argv[i])) {
+      const char *s = JS_ToCString(ctx, argv[i]);
+      if (!s) goto arg_error;
+      tmp_cstr[i]   = s;           /* remember to free */
+      data[i].p     = (void *)s;
+    } else {
+      data[i].p = js_get_ffi_pointer(ctx, argv[i]);
+    }
+    values[i] = &data[i];
+  }
+
+  /* ---------------------------- call   ---------------------------------- */
+  uint8_t ret_space[16] = {0};
+  void   *ret_buf = f->ret_type == &ffi_type_void ? NULL : (void *)ret_space;
+
+  ffi_call(&f->cif, FFI_FN(f->fn_ptr), ret_buf, values);
+  JSValue js_ret = box_result(ctx, f->ret_type, ret_buf);
+
+  /* --------------------------- cleanup ---------------------------------- */
+  for (int i = 0; i < f->nargs; i++)
+    if (tmp_cstr[i]) JS_FreeCString(ctx, tmp_cstr[i]);
+
+  return js_ret;
+
+arg_error:
+  for (int i = 0; i < f->nargs; i++)
+    if (tmp_cstr[i]) JS_FreeCString(ctx, tmp_cstr[i]);
+  return JS_EXCEPTION;
+}
+
+/* -------------------------------------------------------------------------- */
+/*  module init                                                               */
+/* -------------------------------------------------------------------------- */
+
+static const JSCFunctionListEntry js_ffi_funcs[] = {
+  JS_CFUNC_DEF("dlopen",  1, js_ffi_dlopen),
+  JS_CFUNC_DEF("prepare", 4, js_ffi_prepare),
+};
+
+static const JSCFunctionListEntry js_ffi_func_funcs[] = {
+  JS_CFUNC_DEF("call", 1, js_ffi_call),
+};
+
+JSValue
+js_ffi_use(JSContext *ctx)
+{
+  JS_NewClassID(&js_ffi_func_id);
+  JS_NewClass(JS_GetRuntime(ctx), js_ffi_func_id, &js_ffi_func_class);
+
+  JSValue fn_proto = JS_NewObject(ctx);
+  JS_SetPropertyFunctionList(ctx, fn_proto, js_ffi_func_funcs, countof(js_ffi_func_funcs));
+  JS_SetClassProto(ctx, js_ffi_func_id, fn_proto);
+
+  JS_NewClassID(&js_ffi_pointer_id);
+  JS_NewClass(JS_GetRuntime(ctx), js_ffi_pointer_id, &js_ffi_pointer_class);
+
+  JSValue mod = JS_NewObject(ctx);
+  JS_SetPropertyFunctionList(ctx, mod, js_ffi_funcs, countof(js_ffi_funcs));
+  return mod;
+}

source/qjs_ffi.h

@@ -0,0 +1,8 @@
+#ifndef QJS_FFI_H
+#define QJS_FFI_H
+
+#include "cell.h"
+
+JSValue js_ffi_use(JSContext *ctx);
+
+#endif

source/qjs_geometry.c

@@ -445,10 +445,10 @@ static BufferCheckResult get_or_extend_buffer(
   int copy,
   int index
 ) {
-  BufferCheckResult res = { JS_UNDEFINED, NULL, 0, 0 };
-  if (!JS_IsUndefined(old_mesh)) {
+  BufferCheckResult res = { JS_NULL, NULL, 0, 0 };
+  if (!JS_IsNull(old_mesh)) {
     JSValue old_buf = JS_GetPropertyStr(js, old_mesh, prop);
-    if (!JS_IsUndefined(old_buf)) {
+    if (!JS_IsNull(old_buf)) {
       size_t old_size;
       void *data = get_gpu_buffer(js, old_buf, NULL, &old_size);
       if (data && old_size >= needed_size) {
@@ -520,7 +520,7 @@ JSC_CCALL(gpu_make_sprite_mesh,
   }
 
   // Check old mesh
-  JSValue old_mesh = JS_UNDEFINED;
+  JSValue old_mesh = JS_NULL;
   if (argc > 1)
     old_mesh = argv[1];
 
@@ -529,9 +529,9 @@ JSC_CCALL(gpu_make_sprite_mesh,
   size_t uv_size = sizeof(*uvdata)*verts;
   size_t color_size = sizeof(*colordata)*verts;
 
-  BufferCheckResult pos_chk = get_or_extend_buffer(js, old_mesh, "pos", pos_size, JS_TYPED_ARRAY_FLOAT32, 2, 1, 0);
-  BufferCheckResult uv_chk = get_or_extend_buffer(js, old_mesh, "uv", uv_size, JS_TYPED_ARRAY_FLOAT32, 2, 1, 0);
-  BufferCheckResult color_chk = get_or_extend_buffer(js, old_mesh, "color", color_size, JS_TYPED_ARRAY_FLOAT32, 4, 1, 0);
+  BufferCheckResult pos_chk = get_or_extend_buffer(js, old_mesh, "pos", pos_size, 0, 2, 1, 0);
+  BufferCheckResult uv_chk = get_or_extend_buffer(js, old_mesh, "uv", uv_size, 0, 2, 1, 0);
+  BufferCheckResult color_chk = get_or_extend_buffer(js, old_mesh, "color", color_size, 0, 4, 1, 0);
 
   int need_new_all = pos_chk.need_new || uv_chk.need_new || color_chk.need_new;
 
@@ -539,9 +539,9 @@ JSC_CCALL(gpu_make_sprite_mesh,
 
   if (need_new_all) {
     // Create all new buffers
-    JSValue new_pos = make_gpu_buffer(js, posdata, pos_size, JS_TYPED_ARRAY_FLOAT32, 2, 1,0);
-    JSValue new_uv = make_gpu_buffer(js, uvdata, uv_size, JS_TYPED_ARRAY_FLOAT32, 2, 1,0);
-    JSValue new_color = make_gpu_buffer(js, colordata, color_size, JS_TYPED_ARRAY_FLOAT32, 0, 1,0);
+    JSValue new_pos = make_gpu_buffer(js, posdata, pos_size, 0, 2, 1,0);
+    JSValue new_uv = make_gpu_buffer(js, uvdata, uv_size, 0, 2, 1,0);
+    JSValue new_color = make_gpu_buffer(js, colordata, color_size, 0, 0, 1,0);
 
     JS_SetPropertyStr(js, ret, "pos", new_pos);
     JS_SetPropertyStr(js, ret, "uv", new_uv);
@@ -577,9 +577,9 @@ JSC_CCALL(gpu_make_sprite_mesh,
   free(colordata);
 
   // Free old buffer values if they were fetched
-  if (!JS_IsUndefined(pos_chk.val)) JS_FreeValue(js, pos_chk.val);
-  if (!JS_IsUndefined(uv_chk.val)) JS_FreeValue(js, uv_chk.val);
-  if (!JS_IsUndefined(color_chk.val)) JS_FreeValue(js, color_chk.val);
+  if (!JS_IsNull(pos_chk.val)) JS_FreeValue(js, pos_chk.val);
+  if (!JS_IsNull(uv_chk.val)) JS_FreeValue(js, uv_chk.val);
+  if (!JS_IsNull(color_chk.val)) JS_FreeValue(js, color_chk.val);
 
   return ret;
 )
@@ -603,9 +603,9 @@ struct quad_buffers quad_buffers_new(int verts)
 
 JSValue quadbuffers_to_mesh(JSContext *js, struct quad_buffers buffers)
 {
-  JSValue jspos = make_gpu_buffer(js, buffers.pos, sizeof(HMM_Vec2)*buffers.verts, JS_TYPED_ARRAY_FLOAT32, 2, 0, 0);
-  JSValue jsuv = make_gpu_buffer(js, buffers.uv, sizeof(HMM_Vec2)*buffers.verts, JS_TYPED_ARRAY_FLOAT32, 2,0,0);
-  JSValue jscolor = make_gpu_buffer(js, buffers.color, sizeof(HMM_Vec4)*buffers.verts, JS_TYPED_ARRAY_FLOAT32, 4,0,0);
+  JSValue jspos = make_gpu_buffer(js, buffers.pos, sizeof(HMM_Vec2)*buffers.verts, 0, 2, 0, 0);
+  JSValue jsuv = make_gpu_buffer(js, buffers.uv, sizeof(HMM_Vec2)*buffers.verts, 0, 2,0,0);
+  JSValue jscolor = make_gpu_buffer(js, buffers.color, sizeof(HMM_Vec4)*buffers.verts, 0, 4,0,0);
 
   size_t quads = buffers.verts/4;
   size_t count = buffers.verts/2*3;
@@ -685,11 +685,11 @@ JSC_CCALL(gpu_make_sprite_queue,
   
   rect uv;
   rect uv_px;
-  JSValue cur_img = JS_UNDEFINED;
+  JSValue cur_img = JS_NULL;
 
   for (size_t i = 0; i < quads; i++) {
     sprite *s = &sprites[i];  
-    if (JS_IsUndefined(cur_img) || !JS_StrictEq(js, s->image, cur_img)) {
+    if (JS_IsNull(cur_img) || !JS_StrictEq(js, s->image, cur_img)) {
       cur_img = s->image;
       JS_GETATOM(js, uv, cur_img, rect, rect)
       JS_GETATOM(js, uv_px, cur_img, rect_px, rect)
@@ -732,7 +732,7 @@ JSC_CCALL(gpu_make_sprite_queue,
   int first_index = 0;
   int count = 0;
   int n = 0;
-  JSValue img = JS_UNDEFINED;
+  JSValue img = JS_NULL;
 
   for (int i = 0; i < quads; i++) {
     if (!JS_SameValue(js, sprites[i].image, img)) {
@@ -832,7 +832,7 @@ JSC_CCALL(geometry_tilemap_to_data,
       int col_len = JS_ArrayLength(js, col);
       for (int y = 0; y < col_len; y++) {
         JSValue tile = JS_GetPropertyUint32(js, col, y);
-        if (!JS_IsUndefined(tile) && !JS_IsNull(tile)) {
+        if (!JS_IsNull(tile) && !JS_IsNull(tile)) {
           tile_count++;
         }
         JS_FreeValue(js, tile);
@@ -865,7 +865,7 @@ JSC_CCALL(geometry_tilemap_to_data,
       int col_len = JS_ArrayLength(js, col);
       for (int y = 0; y < col_len; y++) {
         JSValue tile = JS_GetPropertyUint32(js, col, y);
-        if (!JS_IsUndefined(tile) && !JS_IsNull(tile)) {
+        if (!JS_IsNull(tile) && !JS_IsNull(tile)) {
           // Calculate world position
           float world_x = (x + offset_x) * size_x;
           float world_y = (y + offset_y) * size_y;
@@ -895,7 +895,7 @@ JSC_CCALL(geometry_tilemap_to_data,
           SDL_FColor default_color = {1.0f, 1.0f, 1.0f, 1.0f};
           if (JS_IsObject(tile)) {
             JSValue color_val = JS_GetPropertyStr(js, tile, "color");
-            if (!JS_IsUndefined(color_val)) {
+            if (!JS_IsNull(color_val)) {
               HMM_Vec4 color = js2color(js, color_val);
               default_color.r = color.r;
               default_color.g = color.g;

source/qjs_imgui.cpp

@@ -106,38 +106,38 @@ JSC_CCALL(imgui_window,
   const char *str = JS_ToCString(js,argv[0]);
   bool active = true;
   ImGui::Begin(str, &active);
-  JS_Call(js, argv[1], JS_UNDEFINED, 0, NULL);
+  JS_Call(js, argv[1], JS_NULL, 0, NULL);
   ImGui::End();
   JS_FreeCString(js,str);
   return JS_NewBool(js,active);
 )
 JSC_SCALL(imgui_menu,
   if (ImGui::BeginMenu(str)) {
-    JS_Call(js, argv[1], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[1], JS_NULL, 0, NULL);
     ImGui::EndMenu();
   }
 )
 
 JSC_CCALL(imgui_menubar,
   if (ImGui::BeginMenuBar()) {
-    JS_Call(js, argv[0], JS_UNDEFINED, 0, NULL);  
+    JS_Call(js, argv[0], JS_NULL, 0, NULL);  
     ImGui::EndMenuBar();
   }
 )
 
 JSC_CCALL(imgui_mainmenubar,
   if (ImGui::BeginMainMenuBar()) {
-    JS_Call(js, argv[0], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[0], JS_NULL, 0, NULL);
     ImGui::EndMainMenuBar();
   }
 )
 
 JSC_CCALL(imgui_menuitem,
   const char *name = JS_ToCString(js,argv[0]);
-  const char *keyfn = JS_IsUndefined(argv[1]) ? NULL : JS_ToCString(js,argv[1]);
-  bool on = JS_IsUndefined(argv[3]) ? false : JS_ToBool(js,argv[3]);
+  const char *keyfn = JS_IsNull(argv[1]) ? NULL : JS_ToCString(js,argv[1]);
+  bool on = JS_IsNull(argv[3]) ? false : JS_ToBool(js,argv[3]);
   if (ImGui::MenuItem(JS_ToBool(js,argv[0]) ? name : "##empty" ,keyfn, &on))
-    JS_Call(js, argv[2], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[2], JS_NULL, 0, NULL);
 
   if (!JS_IsNull(argv[0])) JS_FreeCString(js,name);
   if (keyfn) JS_FreeCString(js,keyfn);
@@ -147,7 +147,7 @@ JSC_CCALL(imgui_menuitem,
 
 JSC_SCALL(imgui_plot,
   if (ImPlot::BeginPlot(str)) {
-    JS_Call(js, argv[1], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[1], JS_NULL, 0, NULL);
     ImPlot::EndPlot();
   }
 )
@@ -173,7 +173,7 @@ void fill_plotdata(JSContext *js, JSValue v, JSValue last)
   else {
     // Fill it with the x axis being the array index
     for (int i = 0; i < JS_ArrayLength(js, v); i++) {
-      if (JS_IsUndefined(js_getpropidx(v,i))) continue;
+      if (JS_IsNull(js_getpropidx(v,i))) continue;
       ImVec2 c;
       c.x = i;
       c.y = js2number(js, js_getpropidx(v,i));
@@ -181,7 +181,7 @@ void fill_plotdata(JSContext *js, JSValue v, JSValue last)
     }
   }
 
-  if (!JS_IsUndefined(last)) {
+  if (!JS_IsNull(last)) {
     int frame = js2number(js, last);
     ImVec2 c = js2vec2(js,last);
     c.y = arrlast(plotdata).y;
@@ -195,7 +195,7 @@ PLOT_FN(stairplot, PlotStairs,,ImPlotStairsFlags_Shaded)
 PLOT_FN(digitalplot, PlotDigital,,0)
 
 JSC_SCALL(imgui_barplot,
-  fill_plotdata(js, argv[1], JS_UNDEFINED);
+  fill_plotdata(js, argv[1], JS_NULL);
   ImPlot::PlotBars(str, &plotdata[0].x, &plotdata[0].y, JS_ArrayLength(js, argv[1]), js2number(js, argv[2]), 0, 0, sizeof(ImVec2));
 )
 
@@ -243,7 +243,7 @@ JSC_CCALL(imgui_fitaxis,
 
 JSC_SSCALL(imgui_textinput,
   char buffer[512];
-  if (JS_IsUndefined(argv[1]))
+  if (JS_IsNull(argv[1]))
     buffer[0] = 0;
   else
     strncpy(buffer, str2, sizeof(buffer)-1);
@@ -257,7 +257,7 @@ JSC_SSCALL(imgui_textinput,
 
 JSC_SSCALL(imgui_textbox,
   char buffer[512];
-  if (JS_IsUndefined(argv[1]))
+  if (JS_IsNull(argv[1]))
     buffer[0] = 0;
   else
     strncpy(buffer, str2, sizeof(buffer)-1);
@@ -273,12 +273,12 @@ JSC_SCALL(imgui_text, ImGui::Text("%s", str) )
 
 JSC_SCALL(imgui_button,
   if (ImGui::Button(str))
-    JS_Call(js, argv[1], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[1], JS_NULL, 0, NULL);
 )
 
 JSC_SCALL(imgui_slider,
-/*  float low = JS_IsUndefined(argv[2]) ? 0.0 : js2number(js, argv[2]);
-  float high = JS_IsUndefined(argv[3]) ? 1.0 : js2number(js, argv[3]);
+/*  float low = JS_IsNull(argv[2]) ? 0.0 : js2number(js, argv[2]);
+  float high = JS_IsNull(argv[3]) ? 1.0 : js2number(js, argv[3]);
   
   if (JS_IsArray(js, argv[1])) {
     int n = JS_ArrayLength(js, argv[1]);
@@ -306,8 +306,8 @@ JSC_SCALL(imgui_slider,
 )
 
 JSC_SCALL(imgui_intslider,
-  int low = JS_IsUndefined(argv[2]) ? 0.0 : js2number(js, argv[2]);
-  int high = JS_IsUndefined(argv[3]) ? 1.0 : js2number(js, argv[3]);
+  int low = JS_IsNull(argv[2]) ? 0.0 : js2number(js, argv[2]);
+  int high = JS_IsNull(argv[3]) ? 1.0 : js2number(js, argv[3]);
   
   JSValue arr = JS_NewTypedArray(js, 1, &argv[1], JS_TYPED_ARRAY_INT32);
   size_t len;
@@ -353,7 +353,7 @@ JSC_CCALL(imgui_image,
 JSC_SCALL(imgui_imagebutton,
   SDL_GPUTexture *tex = js2SDL_GPUTexture(js,argv[1]);
   if (ImGui::ImageButton(str, (ImTextureID)tex, ImVec2(100, 100)))
-    JS_Call(js, argv[2], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[2], JS_NULL, 0, NULL);
 )
 
 JSC_CCALL(imgui_sameline, ImGui::SameLine(js2number(js, argv[0])) )
@@ -364,21 +364,21 @@ JSC_SCALL(imgui_radio, ret = JS_NewBool(js,ImGui::RadioButton(str, JS_ToBool(js,
 
 JSC_SCALL(imgui_tree,
   if (ImGui::TreeNode(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);
     ImGui::TreePop();
   }
 )
 
 JSC_SCALL(imgui_tabbar,
   if (ImGui::BeginTabBar(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);  
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);  
     ImGui::EndTabBar();
   }
 )
 
 JSC_SCALL(imgui_tab,
   if (ImGui::BeginTabItem(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);    
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);    
     ImGui::EndTabItem();
   }
 )
@@ -407,7 +407,7 @@ JSC_SCALL(imgui_open_popup,
 
 JSC_SCALL(imgui_popup,
   if (ImGui::BeginPopup(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);      
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);      
     ImGui::EndPopup();
   }
 )
@@ -418,14 +418,14 @@ JSC_CCALL(imgui_close_popup,
 
 JSC_SCALL(imgui_modal,
   if (ImGui::BeginPopupModal(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);      
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);      
     ImGui::EndPopup();
   }
 )
 
 JSC_SCALL(imgui_context,
   if (ImGui::BeginPopupContextItem(str)) {
-    JS_Call(js, argv[1],JS_UNDEFINED, 0,NULL);      
+    JS_Call(js, argv[1],JS_NULL, 0,NULL);      
     ImGui::EndPopup();
   }
 )
@@ -433,11 +433,11 @@ JSC_SCALL(imgui_context,
 JSC_SCALL(imgui_table,
   int flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_SizingStretchProp;
   bool sort = false;  
-  if (!JS_IsUndefined(argv[3])) sort = true;  
+  if (!JS_IsNull(argv[3])) sort = true;  
 
   if (sort) flags |= ImGuiTableFlags_Sortable;
   if (ImGui::BeginTable(str, js2number(js, argv[1]), flags)) {
-    JS_Call(js, argv[2], JS_UNDEFINED, 0, NULL);
+    JS_Call(js, argv[2], JS_NULL, 0, NULL);
 
     if (sort) {
       ImGuiTableSortSpecs* sort_specs = ImGui::TableGetSortSpecs();
@@ -448,7 +448,7 @@ JSC_SCALL(imgui_table,
           JSValue send[2];
           send[0] = JS_NewInt32(js,spec->ColumnIndex);
           send[1] = JS_NewBool(js,spec->SortDirection == ImGuiSortDirection_Ascending);
-          JS_Call(js, argv[3], JS_UNDEFINED, 2, send);          
+          JS_Call(js, argv[3], JS_NULL, 2, send);          
           JS_FreeValue(js, send[0]);
           JS_FreeValue(js, send[1]);
         }
@@ -470,7 +470,7 @@ JSC_SCALL(imgui_dnd,
   if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
     double n = js2number(js, argv[1]);
     ImGui::SetDragDropPayload(str, &n, sizeof(n));
-//    JS_Call(js, argv[2], JS_UNDEFINED, 2, send);              
+//    JS_Call(js, argv[2], JS_NULL, 2, send);              
     ImGui::EndDragDropSource();
   }
 )
@@ -479,7 +479,7 @@ JSC_SCALL(imgui_dndtarget,
   if (ImGui::BeginDragDropTarget()) {
     if (const ImGuiPayload *payload = ImGui::AcceptDragDropPayload(str)) {
       JSValue n = JS_NewFloat64(js,*(double*)payload->Data);
-      JS_Call(js, argv[1], JS_UNDEFINED, 1, &n);                    
+      JS_Call(js, argv[1], JS_NULL, 1, &n);                    
     }
     ImGui::EndDragDropTarget();
   }
@@ -500,7 +500,7 @@ JSC_SCALL(imgui_color,
 
 JSC_CCALL(imgui_startnode,
   ImNodes::BeginNodeEditor();
-  JS_Call(js, argv[0], JS_UNDEFINED, 0,NULL);                     
+  JS_Call(js, argv[0], JS_NULL, 0,NULL);                     
   ImNodes::EndNodeEditor();
   int start_attr;
   int end_attr;
@@ -509,7 +509,7 @@ JSC_CCALL(imgui_startnode,
     JSValue ab[2];
     ab[0] = JS_NewInt32(js,start_attr);
     ab[1] = JS_NewInt32(js,end_attr);
-    JS_Call(js,argv[1], JS_UNDEFINED, 2, ab);
+    JS_Call(js,argv[1], JS_NULL, 2, ab);
     
     for (int i = 0; i < 2; i++) JS_FreeValue(js, ab[i]);
   }
@@ -518,7 +518,7 @@ JSC_CCALL(imgui_startnode,
   if (ImNodes::IsNodeHovered(&node_id))
   {
     JSValue a = JS_NewInt32(js,node_id);
-    JS_Call(js, argv[2], JS_UNDEFINED, 1,&a);                         
+    JS_Call(js, argv[2], JS_NULL, 1,&a);                         
     JS_FreeValue(js,a);
   }
 
@@ -526,26 +526,26 @@ JSC_CCALL(imgui_startnode,
   if (ImNodes::IsLinkHovered(&link_id))
   {
     JSValue a = JS_NewInt32(js,link_id);
-    JS_Call(js, argv[3], JS_UNDEFINED, 1,&a);                             
+    JS_Call(js, argv[3], JS_NULL, 1,&a);                             
     JS_FreeValue(js,a);
   }
 )
 
 JSC_CCALL(imgui_node,
   ImNodes::BeginNode(js2number(js, argv[0]));
-  JS_Call(js, argv[1], JS_UNDEFINED, 0,NULL);                               
+  JS_Call(js, argv[1], JS_NULL, 0,NULL);                               
   ImNodes::EndNode();
 )
 
 JSC_CCALL(imgui_nodein,
   ImNodes::BeginInputAttribute(js2number(js, argv[0]));
-  JS_Call(js, argv[1], JS_UNDEFINED, 0,NULL);                                 
+  JS_Call(js, argv[1], JS_NULL, 0,NULL);                                 
   ImNodes::EndInputAttribute();
 )
 
 JSC_CCALL(imgui_nodeout,
   ImNodes::BeginOutputAttribute(js2number(js, argv[0]));
-  JS_Call(js, argv[1], JS_UNDEFINED, 0,NULL);                                 
+  JS_Call(js, argv[1], JS_NULL, 0,NULL);                                 
   ImNodes::EndOutputAttribute();
 )
 
@@ -681,7 +681,7 @@ static JSValue axis_fmts[10];
 void jsformatter(double value, char *buff, int size, JSValue *fmt)
 {
 /*  JSValue v = JS_NewFloat64(js,value);
-  const char *str = JS_ToCString(js, JS_Call(js,*fmt, JS_UNDEFINED, 1, &v));
+  const char *str = JS_ToCString(js, JS_Call(js,*fmt, JS_NULL, 1, &v));
   strncpy(buff,str, size);
   JS_FreeCString(js, str);*/
 }
@@ -689,9 +689,9 @@ void jsformatter(double value, char *buff, int size, JSValue *fmt)
 JSC_CCALL(imgui_axisfmt,
   int y = num_to_yaxis(js2number(js, argv[0]));
   
-  if (!JS_IsUndefined(axis_fmts[y])) {
+  if (!JS_IsNull(axis_fmts[y])) {
     JS_FreeValue(js, axis_fmts[y]);
-    axis_fmts[y] = JS_UNDEFINED;
+    axis_fmts[y] = JS_NULL;
   }
   
   axis_fmts[y] = JS_DupValue(js,argv[1]);

source/qjs_io.c

@@ -159,14 +159,14 @@ JSC_SCALL(io_slurpwrite,
 JSC_CCALL(io_mount,
   const char *src = JS_ToCString(js, argv[0]);
   const char *mountpoint;
-  if (JS_IsUndefined(argv[1]))
+  if (JS_IsNull(argv[1]))
     mountpoint = NULL;
   else
     mountpoint = JS_ToCString(js, argv[1]);
     
   int prepend = 0;
   
-  if (argc > 2 && !JS_IsUndefined(argv[2]))
+  if (argc > 2 && !JS_IsNull(argv[2]))
     prepend = JS_ToBool(js, argv[2]);
   
   if (!PHYSFS_mount(src, mountpoint, prepend))
@@ -274,7 +274,7 @@ JSC_CCALL(io_globfs,
   data.globs = globs;
 
   const char *path = NULL;
-  if (!JS_IsUndefined(argv[1])) path = JS_ToCString(js,argv[1]);
+  if (!JS_IsNull(argv[1])) path = JS_ToCString(js,argv[1]);
   PHYSFS_enumerate(path, globfs_cb, &data);
 
   for (int i = 0; i < globs_len; i++)
@@ -297,7 +297,7 @@ JSC_SCALL(io_enumerate,
   data.globs = NULL;  /* not used here */
   data.recurse = 0;
 
-  if (!JS_IsUndefined(argv[1])) /* parse second arg if provided */
+  if (!JS_IsNull(argv[1])) /* parse second arg if provided */
     data.recurse = JS_ToBool(js, argv[1]);
 
   /* Enumerate the directory given by 'str'. */
@@ -322,7 +322,7 @@ JSC_SCALL(io_open,
 JSC_SCALL(io_realdir,
   const char *real = PHYSFS_getRealDir(str);
   if (!real)
-    ret = JS_UNDEFINED;
+    ret = JS_NULL;
   else
     ret = JS_NewString(js,real);
 )

source/qjs_js.c

@@ -39,11 +39,11 @@ JSC_CCALL(os_calc_mem,
 )
 
 JSC_SSCALL(os_eval,
-  ret = JS_Eval(js,str2,strlen(str2),str, JS_EVAL_FLAG_STRICT);
+  ret = JS_Eval(js,str2,strlen(str2),str, 0);
 )
 
 JSC_SSCALL(js_compile,
-  ret = JS_Eval(js, str2, strlen(str2), str, JS_EVAL_FLAG_STRICT | JS_EVAL_FLAG_COMPILE_ONLY);
+  ret = JS_Eval(js, str2, strlen(str2), str, JS_EVAL_FLAG_COMPILE_ONLY);
 )
 
 JSC_CCALL(js_eval_compile,

source/qjs_macros.h

@@ -5,13 +5,13 @@
 
 #define JS_SETSIG JSContext *js, JSValue self, JSValue val
 #define JSC_CCALL(NAME, ...) static JSValue js_##NAME (JSContext *js, JSValue self, int argc, JSValue *argv) { \
-  JSValue ret = JS_UNDEFINED; \
+  JSValue ret = JS_NULL; \
   __VA_ARGS__  ;\
   return ret; \
 }
 
 #define JSC_CCALL_EXTERN(NAME, ...) JSValue js_##NAME (JSContext *js, JSValue self, int argc, JSValue *argv) { \
-  JSValue ret = JS_UNDEFINED; \
+  JSValue ret = JS_NULL; \
   __VA_ARGS__  ;\
   return ret; \
 }
@@ -25,8 +25,8 @@
 #define JSC_SSCALL(NAME, ...) JSC_CCALL(NAME, \
   const char *str = NULL; \
   const char *str2 = NULL; \
-  if (!JS_IsUndefined(argv[0])) str = JS_ToCString(js,argv[0]); \
-  if (!JS_IsUndefined(argv[1])) str2 = JS_ToCString(js,argv[1]); \
+  if (!JS_IsNull(argv[0])) str = JS_ToCString(js,argv[0]); \
+  if (!JS_IsNull(argv[1])) str2 = JS_ToCString(js,argv[1]); \
   __VA_ARGS__ ; \
   JS_FreeCString(js,str2); \
   JS_FreeCString(js,str); \
@@ -41,21 +41,21 @@
 #define CGETSET_ADD(ID, ENTRY) MIST_CGETSET_DEF(#ENTRY, js_##ID##_get_##ENTRY, js_##ID##_set_##ENTRY)
 #define CGETSET_ADD_HID(ID, ENTRY) MIST_CGETSET_BASE(#ENTRY, js_##ID##_get_##ENTRY, js_##ID##_set_##ENTRY, JS_PROP_CONFIGURABLE)
 
-#define JSC_DCALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(); return JS_UNDEFINED; }
+#define JSC_DCALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(); return JS_NULL; }
 
-#define JSC_1CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0])); return JS_UNDEFINED; }
-#define JSC_2CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1])); return JS_UNDEFINED; }
-#define JSC_3CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2])); return JS_UNDEFINED; }
-#define JSC_4CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3])); return JS_UNDEFINED; }
-#define JSC_5CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4])); return JS_UNDEFINED; }
-#define JSC_6CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5])); return JS_UNDEFINED; }
-#define JSC_7CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5]), js2number(js,argv[6])); return JS_UNDEFINED; }
+#define JSC_1CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0])); return JS_NULL; }
+#define JSC_2CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1])); return JS_NULL; }
+#define JSC_3CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2])); return JS_NULL; }
+#define JSC_4CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3])); return JS_NULL; }
+#define JSC_5CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4])); return JS_NULL; }
+#define JSC_6CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5])); return JS_NULL; }
+#define JSC_7CALL(FN) JSValue js_##FN (JSContext *js, JSValue self, int argc, JSValue *argv) { FN(js2number(js,argv[0]), js2number(js,argv[1]), js2number(js,argv[2]), js2number(js,argv[3]), js2number(js,argv[4]), js2number(js,argv[5]), js2number(js,argv[6])); return JS_NULL; }
 
 #define GETSETPAIR(ID, ENTRY, TYPE, FN) \
 JSValue js_##ID##_set_##ENTRY (JS_SETSIG) { \
   js2##ID (js, self)->ENTRY = js2##TYPE (js,val); \
   {FN;} \
-  return JS_UNDEFINED; \
+  return JS_NULL; \
 } \
 \
 JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { \
@@ -67,9 +67,9 @@ JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { \
 #define JSC_GETSET_CALLBACK(ID, ENTRY) \
 JSValue js_##ID##_set_##ENTRY (JS_SETSIG) { \
   JSValue fn = js2##ID (js, self)->ENTRY; \
-  if (!JS_IsUndefined(fn)) JS_FreeValue(js, fn); \
+  if (!JS_IsNull(fn)) JS_FreeValue(js, fn); \
   js2##ID (js, self)->ENTRY = JS_DupValue(js, val); \
-  return JS_UNDEFINED; \
+  return JS_NULL; \
 }\
 JSValue js_##ID##_get_##ENTRY (JSContext *js, JSValue self) { return JS_DupValue(js, js2##ID (js, self)->ENTRY); } \
 

source/qjs_math.c

@@ -68,7 +68,7 @@ static int gcd(int a, int b) {
 JSC_CCALL(math_rotate,
   HMM_Vec2 vec = js2vec2(js,argv[0]);
   double angle = js2angle(js, argv[1]);
-  HMM_Vec2 pivot = JS_IsUndefined(argv[2]) ? v2zero : js2vec2(js,argv[2]);  
+  HMM_Vec2 pivot = JS_IsNull(argv[2]) ? v2zero : js2vec2(js,argv[2]);  
   vec = HMM_SubV2(vec,pivot);
 
   float r = HMM_LenV2(vec);
@@ -254,7 +254,7 @@ JSC_CCALL(math_project,
   if (!a || !b) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   // We'll work up to the smaller length
@@ -262,7 +262,7 @@ JSC_CCALL(math_project,
   if (len == 0) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   // Compute dot products: a·b and b·b
@@ -299,14 +299,14 @@ JSC_CCALL(math_midpoint,
   if (!a || !b) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   size_t len = (alen < blen) ? alen : blen;
   if (len == 0) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   float *m = (float*)malloc(sizeof(float) * len);
@@ -334,14 +334,14 @@ JSC_CCALL(math_reflect,
   if (!a || !b) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   size_t len = (alen < blen) ? alen : blen;
   if (len == 0) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   // Reflect vector a across normal b
@@ -378,14 +378,14 @@ JSC_CCALL(math_direction,
   if (!a || !b) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   size_t len = (alen < blen) ? alen : blen;
   if (len == 0) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   // Direction vector from a to b (normalized)
@@ -421,7 +421,7 @@ JSC_CCALL(math_angle,
   
   if (!v || len < 2) {
     free(v);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   // Return angle in radians for 2D vector
@@ -438,14 +438,14 @@ JSC_CCALL(math_distance,
   if (!a || !b) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   size_t len = (alen < blen) ? alen : blen;
   if (len == 0) {
     free(a);
     free(b);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   float distSq = 0.0f;

source/qjs_miniz.c

@@ -166,10 +166,10 @@ static JSValue js_miniz_decompress(JSContext *js,
   JSValue ret;
   int asString = (argc > 1) && JS_ToBool(js, argv[1]);
 
-  if (asString)
+//  if (asString)
     ret = JS_NewStringLen(js, (const char *)out_ptr, out_len);
-  else
-    ret = JS_NewArrayBufferCopy(js, out_ptr, out_len);
+//  else
+//    ret = JS_NewArrayBufferCopy(js, out_ptr, out_len);
 
 #ifdef MZ_FREE
   MZ_FREE(out_ptr);
@@ -210,7 +210,7 @@ JSValue js_writer_add_file(JSContext *js, JSValue self, int argc, JSValue *argv)
   if (!success)
     return JS_ThrowInternalError(js, "Failed to add memory to zip");
   
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 

source/qjs_nota.c

@@ -44,7 +44,7 @@ static int nota_stack_has(NotaEncodeContext *enc, JSValueConst val)
 }
 
 static JSValue apply_replacer(NotaEncodeContext *enc, JSValueConst holder, JSValueConst key, JSValueConst val) {
-  if (JS_IsUndefined(enc->replacer)) return JS_DupValue(enc->ctx, val);
+  if (JS_IsNull(enc->replacer)) return JS_DupValue(enc->ctx, val);
 
   JSValue args[2] = { JS_DupValue(enc->ctx, key), JS_DupValue(enc->ctx, val) };
   JSValue result = JS_Call(enc->ctx, enc->replacer, holder, 2, args);
@@ -103,17 +103,17 @@ char *js_do_nota_decode(JSContext *js, JSValue *tmp, char *nota, JSValue holder,
       nota = nota_read_sym(&b, nota);
       if (b == NOTA_PRIVATE) {
         JSValue inner;
-        nota = js_do_nota_decode(js, &inner, nota, holder, JS_UNDEFINED, reviver);
+        nota = js_do_nota_decode(js, &inner, nota, holder, JS_NULL, reviver);
         JSValue obj = JS_NewObject(js);
         cell_rt *crt = JS_GetContextOpaque(js);
         JS_SetProperty(js, obj, crt->actor_sym, inner);
         *tmp = obj;
       } else {
         switch(b) {
-          case NOTA_NULL: *tmp = JS_UNDEFINED; break;
+          case NOTA_NULL: *tmp = JS_NULL; break;
           case NOTA_FALSE: *tmp = JS_NewBool(js, 0); break;
           case NOTA_TRUE: *tmp = JS_NewBool(js, 1); break;
-          default: *tmp = JS_UNDEFINED; break;
+          default: *tmp = JS_NULL; break;
         }
       }
       break;
@@ -124,7 +124,7 @@ char *js_do_nota_decode(JSContext *js, JSValue *tmp, char *nota, JSValue holder,
       break;
   }
 
-  if (!JS_IsUndefined(reviver)) {
+  if (!JS_IsNull(reviver)) {
     JSValue args[2] = { JS_DupValue(js, key), JS_DupValue(js, *tmp) };
     JSValue revived = JS_Call(js, reviver, holder, 2, args);
     JS_FreeValue(js, args[0]);
@@ -170,7 +170,6 @@ static void nota_encode_value(NotaEncodeContext *enc, JSValueConst val, JSValueC
       else nota_write_sym(&enc->nb, NOTA_FALSE);
       break;
     case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
       nota_write_sym(&enc->nb, NOTA_NULL);
       break;
     case JS_TAG_OBJECT: {
@@ -202,9 +201,9 @@ static void nota_encode_value(NotaEncodeContext *enc, JSValueConst val, JSValueC
 
       cell_rt *crt = JS_GetContextOpaque(ctx);
       JSValue adata = JS_GetProperty(ctx, replaced, crt->actor_sym);
-      if (!JS_IsUndefined(adata)) {
+      if (!JS_IsNull(adata)) {
         nota_write_sym(&enc->nb, NOTA_PRIVATE);
-        nota_encode_value(enc, adata, replaced, JS_UNDEFINED);
+        nota_encode_value(enc, adata, replaced, JS_NULL);
         JS_FreeValue(ctx, adata);
         break;
       }
@@ -275,10 +274,10 @@ void *value2nota(JSContext *ctx, JSValue v) {
   enc->ctx = ctx;
   enc->visitedStack = JS_NewArray(ctx);
   enc->cycle = 0;
-  enc->replacer = JS_UNDEFINED;
+  enc->replacer = JS_NULL;
 
   nota_buffer_init(&enc->nb, 128);
-  nota_encode_value(enc, v, JS_UNDEFINED, JS_NewString(ctx, ""));
+  nota_encode_value(enc, v, JS_NULL, JS_NewString(ctx, ""));
 
   if (enc->cycle) {
     JS_FreeValue(ctx, enc->visitedStack);
@@ -294,10 +293,10 @@ void *value2nota(JSContext *ctx, JSValue v) {
 }
 
 JSValue nota2value(JSContext *js, void *nota) {
-  if (!nota) return JS_UNDEFINED;
+  if (!nota) return JS_NULL;
   JSValue ret;
   JSValue holder = JS_NewObject(js);
-  js_do_nota_decode(js, &ret, nota, holder, JS_NewString(js, ""), JS_UNDEFINED);
+  js_do_nota_decode(js, &ret, nota, holder, JS_NewString(js, ""), JS_NULL);
   JS_FreeValue(js, holder);
   return ret;
 }
@@ -309,10 +308,10 @@ static JSValue js_nota_encode(JSContext *ctx, JSValueConst this_val, int argc, J
   enc->ctx = ctx;
   enc->visitedStack = JS_NewArray(ctx);
   enc->cycle = 0;
-  enc->replacer = (argc > 1 && JS_IsFunction(ctx, argv[1])) ? argv[1] : JS_UNDEFINED;
+  enc->replacer = (argc > 1 && JS_IsFunction(ctx, argv[1])) ? argv[1] : JS_NULL;
 
   nota_buffer_init(&enc->nb, 128);
-  nota_encode_value(enc, argv[0], JS_UNDEFINED, JS_NewString(ctx, ""));
+  nota_encode_value(enc, argv[0], JS_NULL, JS_NewString(ctx, ""));
 
   if (enc->cycle) {
     JS_FreeValue(ctx, enc->visitedStack);
@@ -330,13 +329,13 @@ static JSValue js_nota_encode(JSContext *ctx, JSValueConst this_val, int argc, J
 }
 
 static JSValue js_nota_decode(JSContext *js, JSValueConst self, int argc, JSValueConst *argv) {
-  if (argc < 1) return JS_UNDEFINED;
+  if (argc < 1) return JS_NULL;
 
   size_t len;
   unsigned char *nota = js_get_blob_data(js, &len, argv[0]);
-  if (!nota) return JS_UNDEFINED;
+  if (!nota) return JS_NULL;
 
-  JSValue reviver = (argc > 1 && JS_IsFunction(js, argv[1])) ? argv[1] : JS_UNDEFINED;
+  JSValue reviver = (argc > 1 && JS_IsFunction(js, argv[1])) ? argv[1] : JS_NULL;
   JSValue ret;
   JSValue holder = JS_NewObject(js);
   js_do_nota_decode(js, &ret, (char*)nota, holder, JS_NewString(js, ""), reviver);

source/qjs_num.c

@@ -533,7 +533,7 @@ static JSValue js_array_slice(JSContext *js, JSValueConst self, int argc, JSValu
   int32_t end = arr->size;
   
   // Parse start argument
-  if (argc >= 1 && !JS_IsUndefined(argv[0])) {
+  if (argc >= 1 && !JS_IsNull(argv[0])) {
     if (JS_ToInt32(js, &start, argv[0]))
       return JS_EXCEPTION;
     
@@ -547,7 +547,7 @@ static JSValue js_array_slice(JSContext *js, JSValueConst self, int argc, JSValu
   }
   
   // Parse end argument
-  if (argc >= 2 && !JS_IsUndefined(argv[1])) {
+  if (argc >= 2 && !JS_IsNull(argv[1])) {
     if (JS_ToInt32(js, &end, argv[1]))
       return JS_EXCEPTION;
     

source/qjs_os.c

@@ -56,7 +56,7 @@ JSC_CCALL(os_totalmem, return number2js(js, SDL_GetSystemRAM()))
 JSC_CCALL(os_platform, return JS_NewString(js,SDL_GetPlatform()))
 
 static JSValue js_os_hostname(JSContext *js, JSValue self, int argc, JSValue *argv) {
-  JSValue ret = JS_UNDEFINED;
+  JSValue ret = JS_NULL;
 #ifdef _WIN32
   TCHAR buffer[256] = TEXT("");
   DWORD size = sizeof(buffer) / sizeof(TCHAR);
@@ -71,7 +71,7 @@ static JSValue js_os_hostname(JSContext *js, JSValue self, int argc, JSValue *ar
 }
 
 static JSValue js_os_arch(JSContext *js, JSValue self, int argc, JSValue *argv) {
-  JSValue ret = JS_UNDEFINED;
+  JSValue ret = JS_NULL;
 #if defined(__x86_64__) || defined(_M_X64)
   return JS_NewString(js,"x64");
 #elif defined(__aarch64__) || defined(_M_ARM64)
@@ -99,7 +99,7 @@ static JSValue js_os_arch(JSContext *js, JSValue self, int argc, JSValue *argv)
 }
 
 static JSValue js_os_freemem(JSContext *js, JSValue self, int argc, JSValue *argv) {
-  JSValue ret = JS_UNDEFINED;
+  JSValue ret = JS_NULL;
 #ifdef _WIN32
   MEMORYSTATUSEX statex;
   statex.dwLength = sizeof(statex);
@@ -126,7 +126,7 @@ static JSValue js_os_freemem(JSContext *js, JSValue self, int argc, JSValue *arg
 }
 
 static JSValue js_os_version(JSContext *js, JSValue self, int argc, JSValue *argv) {
-  JSValue ret = JS_UNDEFINED;
+  JSValue ret = JS_NULL;
 #ifdef _WIN32
   typedef LONG (WINAPI *RtlGetVersionPtr)(PRTL_OSVERSIONINFOW);
   HMODULE h = GetModuleHandleA("ntdll.dll");
@@ -200,7 +200,7 @@ JS_SetPropertyStr(js, OBJ, #FIELD, TYPE##2js(js,STRUCT.FIELD));\
 #define JSJMEMRET(FIELD) JSOBJ_ADD_FIELD(ret, jsmem, FIELD, number)
 
 JSC_CCALL(os_mallinfo,
-  ret = JS_UNDEFINED;
+  ret = JS_NULL;
   /*struct mallinfo jsmem = mallinfo();
   ret = JS_NewObject(js);
   JSJMEMRET(arena);
@@ -216,7 +216,7 @@ JSC_CCALL(os_mallinfo,
 )
 
 static JSValue js_os_rusage(JSContext *js, JSValue self, int argc, JSValue *argv) {
-  JSValue ret = JS_UNDEFINED;
+  JSValue ret = JS_NULL;
   ret = JS_NewObject(js);
 
 #ifndef _WIN32
@@ -244,12 +244,12 @@ static JSValue js_os_rusage(JSContext *js, JSValue self, int argc, JSValue *argv
 #ifdef TRACY_ENABLE
 #include <tracy/TracyC.h>
 JSC_CCALL(os_frame,
-  if (!tracy_profiling_enabled) return JS_UNDEFINED;
+  if (!tracy_profiling_enabled) return JS_NULL;
   TracyCFrameMark
 )
 
 JSC_CCALL(os_trace_img,
-  if (!tracy_profiling_enabled) return JS_UNDEFINED;
+  if (!tracy_profiling_enabled) return JS_NULL;
   size_t len;
   double width, height;
   JS_ToFloat64(js,&width,argv[1]);
@@ -258,7 +258,7 @@ JSC_CCALL(os_trace_img,
 )
 
 JSC_CCALL(os_trace_message,
-  if (!tracy_profiling_enabled) return JS_UNDEFINED;
+  if (!tracy_profiling_enabled) return JS_NULL;
   size_t len;
   const char *str = JS_ToCStringLen(js, &len, argv[0]);
   TracyCMessage(str,len);

source/qjs_qr.c

@@ -24,11 +24,11 @@ static JSValue js_qr_encode(JSContext *js, JSValueConst this_val, int argc, JSVa
     int use_byte_mode = 0;
 
     // Handle options object (argv[1])
-    if (argc > 1 && !JS_IsUndefined(argv[1]) && JS_IsObject(argv[1])) {
+    if (argc > 1 && !JS_IsNull(argv[1]) && JS_IsObject(argv[1])) {
         JSValue opt = argv[1];
         
                 JSValue m = JS_GetPropertyStr(js, opt, "mode");
-                if (!JS_IsUndefined(m)) {
+                if (!JS_IsNull(m)) {
                     const char *smode = JS_ToCString(js, m);
                     if (!smode) { JS_FreeValue(js, m); return JS_EXCEPTION; }
                     if (!strcasecmp(smode, "byte") || !strcasecmp(smode, "binary"))
@@ -45,7 +45,7 @@ static JSValue js_qr_encode(JSContext *js, JSValueConst this_val, int argc, JSVa
 
         // Version (1-40)
         JSValue v = JS_GetPropertyStr(js, opt, "version");
-        if (!JS_IsUndefined(v)) {
+        if (!JS_IsNull(v)) {
             int32_t ver;
             if (JS_ToInt32(js, &ver, v) || ver < 0 || ver > 40) {
                 JS_FreeValue(js, v);
@@ -57,7 +57,7 @@ static JSValue js_qr_encode(JSContext *js, JSValueConst this_val, int argc, JSVa
 
         // Error correction level ("l", "m", "q", "h")
         JSValue l = JS_GetPropertyStr(js, opt, "level");
-        if (!JS_IsUndefined(l)) {
+        if (!JS_IsNull(l)) {
             const char *level = JS_ToCString(js, l);
             if (!level) {
                 JS_FreeValue(js, l);
@@ -78,7 +78,7 @@ static JSValue js_qr_encode(JSContext *js, JSValueConst this_val, int argc, JSVa
 
         // Case sensitivity (true/false)
         JSValue ci = JS_GetPropertyStr(js, opt, "caseinsensitive");
-        if (!JS_IsUndefined(ci)) {
+        if (!JS_IsNull(ci)) {
             int bool_val;
             if (JS_ToBool(js, ci)) {
                 bool_val = 0;  // qrencode: 0 = case-insensitive
@@ -239,7 +239,7 @@ static JSValue js_qr_rgba(JSContext *js, JSValueConst self, int argc, JSValueCon
   if (argc > 2) JS_ToUint32(js, &off, argv[2]);
 
   JSValue js_w = JS_GetPropertyStr(js, mods, "width");
-  if (JS_IsUndefined(js_w)) {
+  if (JS_IsNull(js_w)) {
       JS_FreeValue(js, js_w);
       return JS_ThrowTypeError(js, "mods.width missing");
   }

source/qjs_renderer.c

@@ -48,7 +48,7 @@ JSC_CCALL(SDL_Renderer_draw_color,
 
 JSC_CCALL(SDL_Renderer_rect,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (!JS_IsUndefined(argv[1])) {
+  if (!JS_IsNull(argv[1])) {
     colorf color = js2color(js,argv[1]);  
     SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
   }
@@ -62,7 +62,7 @@ JSC_CCALL(SDL_Renderer_rect,
       JS_FreeValue(js,val);
     }
     SDL_RenderRects(r,rects,len);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   rect rect = js2rect(js,argv[0]);
@@ -85,7 +85,7 @@ JSC_CCALL(renderer_load_texture,
 
 JSC_CCALL(SDL_Renderer_fillrect,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (!JS_IsUndefined(argv[1])) {
+  if (!JS_IsNull(argv[1])) {
     colorf color = js2color(js,argv[1]);  
     SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
   }
@@ -112,12 +112,12 @@ JSC_CCALL(renderer_texture,
   SDL_Texture *tex = js2SDL_Texture(js,argv[0]);
   rect dst = transform_rect(js2rect(js,argv[1]), &cam_mat);
   
-  if (!JS_IsUndefined(argv[3])) {
+  if (!JS_IsNull(argv[3])) {
     colorf color = js2color(js,argv[3]);
     SDL_SetTextureColorModFloat(tex, color.r, color.g, color.b);
     SDL_SetTextureAlphaModFloat(tex,color.a);
   }
-  if (JS_IsUndefined(argv[2]))
+  if (JS_IsNull(argv[2]))
     SDL_RenderTexture(renderer,tex,NULL,&dst);
   else {
 
@@ -137,7 +137,7 @@ JSC_CCALL(renderer_tile,
   if (!dst.h) dst.h = tex->h;
   float scale = js2number(js,argv[3]);
   if (!scale) scale = 1;
-  if (JS_IsUndefined(argv[2]))
+  if (JS_IsNull(argv[2]))
     SDL_RenderTextureTiled(renderer,tex,NULL,scale, &dst);
   else {
     rect src = js2rect(js,argv[2]);
@@ -154,15 +154,15 @@ JSC_CCALL(renderer_slice9,
   dst = transform_rect(js2rect(js,argv[1]), &cam_mat);
 
   SDL_RenderTexture9Grid(renderer, tex,
-    JS_IsUndefined(argv[3]) ? NULL : &src,
+    JS_IsNull(argv[3]) ? NULL : &src,
     bounds.l, bounds.r, bounds.t, bounds.b, 0.0,
-    JS_IsUndefined(argv[1]) ? NULL : &dst);
+    JS_IsNull(argv[1]) ? NULL : &dst);
 )
 
 JSC_CCALL(renderer_get_image,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   SDL_Surface *surf = NULL;
-  if (!JS_IsUndefined(argv[0])) {
+  if (!JS_IsNull(argv[0])) {
     rect rect = js2rect(js,argv[0]);
     surf = SDL_RenderReadPixels(r,&rect);
   } else
@@ -173,7 +173,7 @@ JSC_CCALL(renderer_get_image,
 
 JSC_SCALL(renderer_fasttext,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (!JS_IsUndefined(argv[2])) {
+  if (!JS_IsNull(argv[2])) {
     colorf color = js2color(js,argv[2]);  
     SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
   }
@@ -185,7 +185,7 @@ JSC_SCALL(renderer_fasttext,
 
 JSC_CCALL(renderer_line,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (!JS_IsUndefined(argv[1])) {
+  if (!JS_IsNull(argv[1])) {
     colorf color = js2color(js,argv[1]);  
     SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
   }
@@ -205,7 +205,7 @@ JSC_CCALL(renderer_line,
 
 JSC_CCALL(renderer_point,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (!JS_IsUndefined(argv[1])) {
+  if (!JS_IsNull(argv[1])) {
     colorf color = js2color(js,argv[1]);  
     SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
   }
@@ -220,7 +220,7 @@ JSC_CCALL(renderer_point,
       JS_FreeValue(js,val);
     }
     SDL_RenderPoints(r, points, len);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   HMM_Vec2 point = transform_point(r, js2vec2(js,argv[0]), &cam_mat);
@@ -297,7 +297,7 @@ JSC_CCALL(renderer_logical_size,
 
 JSC_CCALL(renderer_viewport,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsUndefined(argv[0]))
+  if (JS_IsNull(argv[0]))
     SDL_SetRenderViewport(r,NULL);
   else {
     rect view = js2rect(js,argv[0]);
@@ -319,7 +319,7 @@ JSC_CCALL(renderer_get_viewport,
 
 JSC_CCALL(renderer_clip,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsUndefined(argv[0]))
+  if (JS_IsNull(argv[0]))
     SDL_SetRenderClipRect(r,NULL);
   else {
     rect view = js2rect(js,argv[0]);
@@ -376,7 +376,7 @@ JSC_CCALL(renderer_screen2world,
 
 JSC_CCALL(renderer_target,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsUndefined(argv[0]))
+  if (JS_IsNull(argv[0]))
     SDL_SetRenderTarget(r, NULL);
   else {
     SDL_Texture *tex = js2SDL_Texture(js,argv[0]);
@@ -408,12 +408,12 @@ JSC_CCALL(renderer_make_sprite_mesh,
     HMM_Vec4 color;
 
     rect src;
-    if (JS_IsUndefined(jssrc))
+    if (JS_IsNull(jssrc))
       src = (rect){.x = 0, .y = 0, .w = 1, .h = 1};
     else
       src = js2rect(js,jssrc);
     
-    if (JS_IsUndefined(jscolor))
+    if (JS_IsNull(jscolor))
       color = (HMM_Vec4){1,1,1,1};
     else
       color = js2vec4(js,jscolor);

source/qjs_rtree.c

@@ -105,7 +105,7 @@ struct rtree_each
 
 int rtree_foreach(const NUMTYPE *min, const NUMTYPE *max, const JSValue *value, struct rtree_each *each)
 {
-  JSValue ret = JS_Call(each->js, each->fn, JS_UNDEFINED, 0, NULL);
+  JSValue ret = JS_Call(each->js, each->fn, JS_NULL, 0, NULL);
   uncaught_exception(each->js, ret);
   return 1;
 }

source/qjs_sdl.c

@@ -183,7 +183,7 @@ static SDL_CameraSpec js2cameraspec(JSContext *js, JSValue obj) {
   JSValue v;
   
   v = JS_GetPropertyStr(js, obj, "format");
-  if (!JS_IsUndefined(v)) {
+  if (!JS_IsNull(v)) {
     const char *s = JS_ToCString(js, v);
     spec.format = str2pixelformat(s);
     JS_FreeCString(js, s);
@@ -191,23 +191,23 @@ static SDL_CameraSpec js2cameraspec(JSContext *js, JSValue obj) {
   JS_FreeValue(js, v);
   
   v = JS_GetPropertyStr(js, obj, "colorspace");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.colorspace, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.colorspace, v);
   JS_FreeValue(js, v);
   
   v = JS_GetPropertyStr(js, obj, "width");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.width, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.width, v);
   JS_FreeValue(js, v);
   
   v = JS_GetPropertyStr(js, obj, "height");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.height, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.height, v);
   JS_FreeValue(js, v);
   
   v = JS_GetPropertyStr(js, obj, "framerate_numerator");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.framerate_numerator, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.framerate_numerator, v);
   JS_FreeValue(js, v);
   
   v = JS_GetPropertyStr(js, obj, "framerate_denominator");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.framerate_denominator, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.framerate_denominator, v);
   JS_FreeValue(js, v);
   
   return spec;
@@ -229,7 +229,7 @@ JSC_CCALL(camera_open,
   SDL_CameraSpec spec;
   
   // Check if a format spec was provided
-  if (argc > 1 && !JS_IsUndefined(argv[1])) {
+  if (argc > 1 && !JS_IsNull(argv[1])) {
     spec = js2cameraspec(js, argv[1]);
     spec_ptr = &spec;
   }
@@ -300,7 +300,7 @@ JSC_CCALL(camera_capture,
     const char *msg = SDL_GetError();
     if (msg[0] != 0)
       return JS_ThrowReferenceError(js,"Could not get camera frame: %s", SDL_GetError());
-    else return JS_UNDEFINED;
+    else return JS_NULL;
   }
   
   // Create a copy of the surface
@@ -330,7 +330,7 @@ JSC_CCALL(camera_get_driver,
   if (!cam) return JS_ThrowReferenceError(js,"Self was not a camera: %s", SDL_GetError());
   
   const char *driver = SDL_GetCurrentCameraDriver();
-  if (!driver) return JS_UNDEFINED;
+  if (!driver) return JS_NULL;
   
   return JS_NewString(js, driver);
 )
@@ -415,7 +415,7 @@ static SDL_AudioSpec js2audiospec(JSContext *js, JSValue obj)
   JSValue v;
 
   v = JS_GetPropertyStr(js, obj, "format");
-  if (!JS_IsUndefined(v)) {
+  if (!JS_IsNull(v)) {
     const char *s = JS_ToCString(js, v);
     format_str_to_enum(s, &spec.format);
     JS_FreeCString(js, s);
@@ -423,11 +423,11 @@ static SDL_AudioSpec js2audiospec(JSContext *js, JSValue obj)
   JS_FreeValue(js, v);
 
   v = JS_GetPropertyStr(js, obj, "channels");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.channels, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.channels, v);
   JS_FreeValue(js, v);
 
   v = JS_GetPropertyStr(js, obj, "samplerate");
-  if (!JS_IsUndefined(v)) JS_ToInt32(js, &spec.freq, v);
+  if (!JS_IsNull(v)) JS_ToInt32(js, &spec.freq, v);
   JS_FreeValue(js, v);
 
   return spec;
@@ -461,7 +461,7 @@ JSC_CCALL(sdl_audio_open_stream,
 
   SDL_AudioStream *st;
   
-  if (JS_IsUndefined(argv[1]))
+  if (JS_IsNull(argv[1]))
     st = SDL_OpenAudioDeviceStream(devid, NULL, NULL, NULL);
   else {
     SDL_AudioSpec want = js2audiospec(js, argv[1]);
@@ -496,11 +496,11 @@ JSC_CCALL(sdl_audiostream_set_format,
   const SDL_AudioSpec *src_ptr=NULL,*dst_ptr=NULL;
   SDL_AudioSpec src={0},dst={0};
 
-  if(argc>0&&!JS_IsUndefined(argv[0])){
+  if(argc>0&&!JS_IsNull(argv[0])){
     src=js2audiospec(js,argv[0]);
     src_ptr=&src;
   }
-  if(argc>1&&!JS_IsUndefined(argv[1])){
+  if(argc>1&&!JS_IsNull(argv[1])){
     dst=js2audiospec(js,argv[1]);
     dst_ptr=&dst;
   }
@@ -508,7 +508,7 @@ JSC_CCALL(sdl_audiostream_set_format,
   if(!SDL_SetAudioStreamFormat(as,src_ptr,dst_ptr))
     return JS_ThrowInternalError(js,"%s",SDL_GetError());
 
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_resume,
@@ -516,21 +516,21 @@ JSC_CCALL(sdl_audiostream_resume,
   if (!SDL_ResumeAudioStreamDevice(as))
     return JS_ThrowInternalError(js,"%s",SDL_GetError());
 
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_clear,
   SDL_AudioStream *as=js2SDL_AudioStream(js,self);
   if (!SDL_ClearAudioStream(as))
     return JS_ThrowInternalError(js,"%s",SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_flush,
   SDL_AudioStream *as=js2SDL_AudioStream(js,self);
   if(!SDL_FlushAudioStream(as))
     return JS_ThrowInternalError(js,"%s",SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_available,
@@ -557,7 +557,7 @@ JSC_CCALL(sdl_audiostream_put,
 
   if (!SDL_PutAudioStreamData(as,buf,len))
     return JS_ThrowInternalError(js, "%s", SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_get,
@@ -587,7 +587,7 @@ JSC_CCALL(sdl_audiostream_set_gain,
   SDL_AudioStream *as=js2SDL_AudioStream(js,self);
   double g; JS_ToFloat64(js,&g,argv[0]);
   SDL_SetAudioStreamGain(as,(float)g);
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(sdl_audiostream_get_freq_ratio,
@@ -599,7 +599,7 @@ JSC_CCALL(sdl_audiostream_set_freq_ratio,
   SDL_AudioStream *as=js2SDL_AudioStream(js,self);
   double r; JS_ToFloat64(js,&r,argv[0]);
   SDL_SetAudioStreamFrequencyRatio(as,(float)r);
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 /* ---------- JS export list -------------------------------------------- */

source/qjs_sdl_gpu.c

@@ -70,7 +70,7 @@ SDL_GPUSampleCount js2SDL_GPUSampleCount(JSContext *js, JSValue v)
 
 #define JS2ENUM(NAME, RETS, VALS)                            \
 int js2##NAME(JSContext *js, JSValue v) {                    \
-  if (JS_IsUndefined(v)) return 0;                           \
+  if (JS_IsNull(v)) return 0;                           \
   const char *str = JS_ToCString(js, v);                     \
   int *rets = (RETS);                                        \
   const char **vals = (VALS);                                \
@@ -728,19 +728,19 @@ SDL_GPUStencilOpState js2SDL_GPUStencilOpState(JSContext *js, JSValue v)
   memset(&state, 0, sizeof(state));
 
   JSValue compare_val = JS_GetPropertyStr(js, v, "compare");
-  if(!JS_IsUndefined(compare_val)) state.compare_op = js2SDL_GPUCompareOp(js, compare_val);
+  if(!JS_IsNull(compare_val)) state.compare_op = js2SDL_GPUCompareOp(js, compare_val);
   JS_FreeValue(js, compare_val);
 
   JSValue fail_val = JS_GetPropertyStr(js, v, "fail");
-  if(!JS_IsUndefined(fail_val)) state.fail_op = js2SDL_GPUStencilOp(js, fail_val);
+  if(!JS_IsNull(fail_val)) state.fail_op = js2SDL_GPUStencilOp(js, fail_val);
   JS_FreeValue(js, fail_val);
 
   JSValue depth_fail_val = JS_GetPropertyStr(js, v, "depth_fail");
-  if(!JS_IsUndefined(depth_fail_val)) state.depth_fail_op = js2SDL_GPUStencilOp(js, depth_fail_val);
+  if(!JS_IsNull(depth_fail_val)) state.depth_fail_op = js2SDL_GPUStencilOp(js, depth_fail_val);
   JS_FreeValue(js, depth_fail_val);
 
   JSValue pass_val = JS_GetPropertyStr(js, v, "pass");
-  if(!JS_IsUndefined(pass_val)) state.pass_op = js2SDL_GPUStencilOp(js, pass_val);
+  if(!JS_IsNull(pass_val)) state.pass_op = js2SDL_GPUStencilOp(js, pass_val);
   JS_FreeValue(js, pass_val);
 
   return state;
@@ -798,8 +798,8 @@ JSC_CCALL(cmd_acquire_swapchain,
   Uint32 w,h;
   SDL_GPUTexture *texture;
   SDL_AcquireGPUSwapchainTexture(cmds,global_window, &texture, &w, &h);
-  if (!texture) return JS_UNDEFINED;
-  JSValue swap = JS_UNDEFINED;
+  if (!texture) return JS_NULL;
+  JSValue swap = JS_NULL;
 
   JSValue *js_swapchains = ((cell_rt*)JS_GetContextOpaque(js))->js_swapchains;
   
@@ -810,7 +810,7 @@ JSC_CCALL(cmd_acquire_swapchain,
     }
   }
   
-  if (JS_IsUndefined(swap)) {
+  if (JS_IsNull(swap)) {
     swap = SDL_GPUTexture2js(js,texture);
     arrput(js_swapchains,swap);
   }
@@ -1580,7 +1580,7 @@ JSC_CCALL(gpu_upload,
   for (size_t i = 0; i < len; i++) {
     JSValue js_buf = JS_GetPropertyUint32(js, js_buffers, i);
 
-    if (JS_IsUndefined(js_buf))
+    if (JS_IsNull(js_buf))
       continue;
 
     gpu_buffer_unpack(js, gpu, js_buf, &items[i].size, &items[i].data, &items[i].gpu_buffer);
@@ -1883,7 +1883,7 @@ JSC_CCALL(cmd_render_pass,
 
   // Optional depth_stencil
   JSValue depthval = JS_GetPropertyStr(js, passObj, "depth_stencil");
-  if (!JS_IsUndefined(depthval)) {
+  if (!JS_IsNull(depthval)) {
     has_depth = 1;
     JS_GETPROP(js, depthtar.texture, depthval, texture, SDL_GPUTexture)
     JS_GETPROP(js, depthtar.load_op, depthval, load, SDL_GPULoadOp)
@@ -2243,7 +2243,7 @@ SDL_GPUSampleCount js2SDL_GPUSampleCount(JSContext *js, JSValue v)
 // Enum conversion macro and definitions
 #define JS2ENUM(NAME, RETS, VALS)                            \
 int js2##NAME(JSContext *js, JSValue v) {                    \
-  if (JS_IsUndefined(v)) return 0;                           \
+  if (JS_IsNull(v)) return 0;                           \
   const char *str = JS_ToCString(js, v);                     \
   int *rets = (RETS);                                        \
   const char **vals = (VALS);                                \
@@ -2431,5 +2431,5 @@ JSValue js_sdl_gpu_use(JSContext *js)
 {
   // GPU classes are registered via the main FFI loading system
   // This module doesn't export its own functions, it just provides class definitions
-  return JS_UNDEFINED;
+  return JS_NULL;
 }

source/qjs_sdl_surface.c

@@ -16,7 +16,7 @@ JSValue pixelformat2js(JSContext *js, SDL_PixelFormat fmt)
 
 SDL_PixelFormat js2pixelformat(JSContext *js, JSValue v)
 {
-  if (JS_IsUndefined(v)) return SDL_PIXELFORMAT_UNKNOWN;
+  if (JS_IsNull(v)) return SDL_PIXELFORMAT_UNKNOWN;
   const char *s = JS_ToCString(js, v);
   if (!s) return SDL_PIXELFORMAT_UNKNOWN;
   
@@ -41,7 +41,7 @@ static JSValue scalemode2js(JSContext *js, SDL_ScaleMode mode){
 }
 
 SDL_ScaleMode js2SDL_ScaleMode(JSContext *js, JSValue v){
-  if(JS_IsUndefined(v)) return SDL_SCALEMODE_NEAREST;
+  if(JS_IsNull(v)) return SDL_SCALEMODE_NEAREST;
   const char *s = JS_ToCString(js, v);
   if(!s) return SDL_SCALEMODE_NEAREST;
   const scale_entry *it;
@@ -66,14 +66,14 @@ JSC_CCALL(surface_blit,
   SDL_Surface *dst = js2SDL_Surface(js, self);
 
   irect dr = {0},  *pdr = NULL;
-  if(!JS_IsUndefined(argv[0])){ dr = js2irect(js, argv[0]); pdr = &dr; }
+  if(!JS_IsNull(argv[0])){ dr = js2irect(js, argv[0]); pdr = &dr; }
 
   SDL_Surface *src = js2SDL_Surface(js, argv[1]);
   if (!src)
     return JS_ThrowReferenceError(js, "Argument must be a surface.");
 
   irect sr = {0}, *psr = NULL;
-  if(!JS_IsUndefined(argv[2])){ sr = js2irect(js, argv[2]); psr = &sr; }
+  if(!JS_IsNull(argv[2])){ sr = js2irect(js, argv[2]); psr = &sr; }
 
   SDL_ScaleMode mode = js2SDL_ScaleMode(js, argv[3]);
   
@@ -241,14 +241,14 @@ JSC_CCALL(surface_constructor,
   // Check for pixel format
   SDL_PixelFormat format = SDL_PIXELFORMAT_RGBA32;  // default
   JSValue format_val = JS_GetPropertyStr(js, argv[0], "format");
-  if (!JS_IsUndefined(format_val)) {
+  if (!JS_IsNull(format_val)) {
     format = js2pixelformat(js, format_val);
   }
   JS_FreeValue(js, format_val);
   
   // Check for pixel data
   JSValue pixels_val = JS_GetPropertyStr(js, argv[0], "pixels");
-  if (!JS_IsUndefined(pixels_val)) {
+  if (!JS_IsNull(pixels_val)) {
     // Create surface from pixel data
     size_t len;
     void *raw = js_get_blob_data(js, &len, pixels_val);
@@ -261,7 +261,7 @@ JSC_CCALL(surface_constructor,
     // Get pitch if provided, otherwise calculate it
     int pitch;
     JSValue pitch_val = JS_GetPropertyStr(js, argv[0], "pitch");
-    if (!JS_IsUndefined(pitch_val)) {
+    if (!JS_IsNull(pitch_val)) {
       pitch = js2number(js, pitch_val);
       JS_FreeValue(js, pitch_val);
     } else {

source/qjs_sdl_video.c

@@ -87,7 +87,7 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   // Get basic properties (defaults are handled in JavaScript)
   const char *title = NULL;
   JSValue title_val = JS_GetPropertyStr(js, opts, "title");
-  if (!JS_IsUndefined(title_val) && !JS_IsNull(title_val)) {
+  if (!JS_IsNull(title_val) && !JS_IsNull(title_val)) {
     title = JS_ToCString(js, title_val);
   }
   JS_FreeValue(js, title_val);
@@ -98,14 +98,14 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   
   int width = 640;
   JSValue width_val = JS_GetPropertyStr(js, opts, "width");
-  if (!JS_IsUndefined(width_val) && !JS_IsNull(width_val)) {
+  if (!JS_IsNull(width_val) && !JS_IsNull(width_val)) {
     width = js2number(js, width_val);
   }
   JS_FreeValue(js, width_val);
   
   int height = 480;
   JSValue height_val = JS_GetPropertyStr(js, opts, "height");
-  if (!JS_IsUndefined(height_val) && !JS_IsNull(height_val)) {
+  if (!JS_IsNull(height_val) && !JS_IsNull(height_val)) {
     height = js2number(js, height_val);
   }
   JS_FreeValue(js, height_val);
@@ -120,7 +120,7 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   
   // Handle window position
   JSValue x_val = JS_GetPropertyStr(js, opts, "x");
-  if (!JS_IsUndefined(x_val)) {
+  if (!JS_IsNull(x_val)) {
     if (JS_IsString(x_val)) {
       const char *pos = JS_ToCString(js, x_val);
       if (strcmp(pos, "centered") == 0) 
@@ -135,7 +135,7 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   JS_FreeValue(js, x_val);
   
   JSValue y_val = JS_GetPropertyStr(js, opts, "y");
-  if (!JS_IsUndefined(y_val)) {
+  if (!JS_IsNull(y_val)) {
     if (JS_IsString(y_val)) {
       const char *pos = JS_ToCString(js, y_val);
       if (strcmp(pos, "centered") == 0) 
@@ -152,7 +152,7 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   // Helper function to check and set boolean properties
   #define SET_BOOL_PROP(js_name, sdl_prop) do { \
     JSValue val = JS_GetPropertyStr(js, opts, js_name); \
-    if (!JS_IsUndefined(val)) { \
+    if (!JS_IsNull(val)) { \
       SDL_SetBooleanProperty(props, sdl_prop, JS_ToBool(js, val)); \
     } \
     JS_FreeValue(js, val); \
@@ -180,14 +180,14 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   
   // Handle focusable (inverse logic)
   JSValue focusable_val = JS_GetPropertyStr(js, opts, "focusable");
-  if (!JS_IsUndefined(focusable_val)) {
+  if (!JS_IsNull(focusable_val)) {
     SDL_SetBooleanProperty(props, SDL_PROP_WINDOW_CREATE_FOCUSABLE_BOOLEAN, JS_ToBool(js, focusable_val));
   }
   JS_FreeValue(js, focusable_val);
   
   // Handle notFocusable (for backwards compatibility)
   JSValue not_focusable_val = JS_GetPropertyStr(js, opts, "notFocusable");
-  if (!JS_IsUndefined(not_focusable_val)) {
+  if (!JS_IsNull(not_focusable_val)) {
     SDL_SetBooleanProperty(props, SDL_PROP_WINDOW_CREATE_FOCUSABLE_BOOLEAN, !JS_ToBool(js, not_focusable_val));
   }
   JS_FreeValue(js, not_focusable_val);
@@ -196,7 +196,7 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   
   // Handle parent window
   JSValue parent_val = JS_GetPropertyStr(js, opts, "parent");
-  if (!JS_IsUndefined(parent_val) && !JS_IsNull(parent_val)) {
+  if (!JS_IsNull(parent_val) && !JS_IsNull(parent_val)) {
     SDL_Window *parent = js2SDL_Window(js, parent_val);
     if (parent) {
       SDL_SetPointerProperty(props, SDL_PROP_WINDOW_CREATE_PARENT_POINTER, parent);
@@ -224,22 +224,22 @@ static JSValue js_window_constructor(JSContext *js, JSValueConst new_target, int
   // These will be applied through the property setters
   
   JSValue opacity_val = JS_GetPropertyStr(js, opts, "opacity");
-  if (!JS_IsUndefined(opacity_val)) {
+  if (!JS_IsNull(opacity_val)) {
     JS_SetPropertyStr(js, window_obj, "opacity", opacity_val);
   }
   
   JSValue min_size_val = JS_GetPropertyStr(js, opts, "minimumSize");
-  if (!JS_IsUndefined(min_size_val)) {
+  if (!JS_IsNull(min_size_val)) {
     JS_SetPropertyStr(js, window_obj, "minimumSize", min_size_val);
   }
   
   JSValue max_size_val = JS_GetPropertyStr(js, opts, "maximumSize");
-  if (!JS_IsUndefined(max_size_val)) {
+  if (!JS_IsNull(max_size_val)) {
     JS_SetPropertyStr(js, window_obj, "maximumSize", max_size_val);
   }
   
   JSValue pos_val = JS_GetPropertyStr(js, opts, "position");
-  if (!JS_IsUndefined(pos_val)) {
+  if (!JS_IsNull(pos_val)) {
     JS_SetPropertyStr(js, window_obj, "position", pos_val);
   }
   
@@ -275,7 +275,7 @@ JSValue js_SDL_Window_keyboard_shown(JSContext *js, JSValue self) {
 
 JSValue js_window_theme(JSContext *js, JSValue self)
 {
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_safe_area(JSContext *js, JSValue self)
@@ -290,7 +290,7 @@ JSValue js_window_bordered(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowBordered(w, JS_ToBool(js,argv[0]));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_get_title(JSContext *js, JSValue self)
@@ -306,7 +306,7 @@ JSValue js_window_set_title(JSContext *js, JSValue self, JSValue val)
   const char *title = JS_ToCString(js,val);
   SDL_SetWindowTitle(w,title);
   JS_FreeCString(js,title);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_get_size(JSContext *js, JSValue self)
@@ -322,7 +322,7 @@ JSValue js_window_set_size(JSContext *js, JSValue self, JSValue val)
   SDL_Window *w = js2SDL_Window(js,self);
   HMM_Vec2 size = js2vec2(js,val);
   SDL_SetWindowSize(w,size.x,size.y);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_set_icon(JSContext *js, JSValue self, int argc, JSValue *argv)
@@ -331,7 +331,7 @@ JSValue js_window_set_icon(JSContext *js, JSValue self, int argc, JSValue *argv)
   SDL_Surface *s = js2SDL_Surface(js,argv[0]);
   if (!SDL_SetWindowIcon(w,s))
     return JS_ThrowReferenceError(js, "could not set window icon: %s", SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Position getter/setter
@@ -348,7 +348,7 @@ JSValue js_window_set_position(JSContext *js, JSValue self, JSValue val)
   SDL_Window *w = js2SDL_Window(js,self);
   HMM_Vec2 pos = js2vec2(js,val);
   SDL_SetWindowPosition(w,pos.x,pos.y);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Mouse grab getter/setter
@@ -362,7 +362,7 @@ JSValue js_window_set_mouseGrab(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowMouseGrab(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Keyboard grab getter/setter
@@ -376,7 +376,7 @@ JSValue js_window_set_keyboardGrab(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowKeyboardGrab(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Opacity getter/setter  
@@ -391,7 +391,7 @@ JSValue js_window_set_opacity(JSContext *js, JSValue self, JSValue val)
   SDL_Window *w = js2SDL_Window(js,self);
   float opacity = js2number(js,val);
   SDL_SetWindowOpacity(w, opacity);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Minimum size getter/setter
@@ -408,7 +408,7 @@ JSValue js_window_set_minimumSize(JSContext *js, JSValue self, JSValue val)
   SDL_Window *w = js2SDL_Window(js,self);
   HMM_Vec2 size = js2vec2(js,val);
   SDL_SetWindowMinimumSize(w,size.x,size.y);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Maximum size getter/setter
@@ -425,7 +425,7 @@ JSValue js_window_set_maximumSize(JSContext *js, JSValue self, JSValue val)
   SDL_Window *w = js2SDL_Window(js,self);
   HMM_Vec2 size = js2vec2(js,val);
   SDL_SetWindowMaximumSize(w,size.x,size.y);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Resizable setter (read from flags)
@@ -440,7 +440,7 @@ JSValue js_window_set_resizable(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowResizable(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Bordered getter/setter
@@ -455,7 +455,7 @@ JSValue js_window_set_bordered(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowBordered(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Always on top getter/setter
@@ -470,7 +470,7 @@ JSValue js_window_set_alwaysOnTop(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowAlwaysOnTop(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Fullscreen getter/setter
@@ -485,7 +485,7 @@ JSValue js_window_set_fullscreen(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowFullscreen(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Focusable setter
@@ -500,7 +500,7 @@ JSValue js_window_set_focusable(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowFocusable(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Modal setter  
@@ -515,7 +515,7 @@ JSValue js_window_set_modal(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SetWindowModal(w, JS_ToBool(js,val));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Hidden/visible state
@@ -533,7 +533,7 @@ JSValue js_window_set_visible(JSContext *js, JSValue self, JSValue val)
     SDL_ShowWindow(w);
   else
     SDL_HideWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Minimized state
@@ -551,7 +551,7 @@ JSValue js_window_set_minimized(JSContext *js, JSValue self, JSValue val)
     SDL_MinimizeWindow(w);
   else
     SDL_RestoreWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Maximized state
@@ -569,7 +569,7 @@ JSValue js_window_set_maximized(JSContext *js, JSValue self, JSValue val)
     SDL_MaximizeWindow(w);
   else
     SDL_RestoreWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Other window methods
@@ -577,14 +577,14 @@ JSValue js_window_raise(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_RaiseWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_restore(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_RestoreWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_flash(JSContext *js, JSValue self, int argc, JSValue *argv)
@@ -599,14 +599,14 @@ JSValue js_window_flash(JSContext *js, JSValue self, int argc, JSValue *argv)
     JS_FreeCString(js,operation);
   }
   SDL_FlashWindow(w, op);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_destroy(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_DestroyWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_get_id(JSContext *js, JSValue self)
@@ -627,10 +627,10 @@ JSValue js_window_set_parent(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_Window *parent = NULL;
-  if (!JS_IsNull(val) && !JS_IsUndefined(val))
+  if (!JS_IsNull(val) && !JS_IsNull(val))
     parent = js2SDL_Window(js,val);
   SDL_SetWindowParent(w, parent);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_get_pixelDensity(JSContext *js, JSValue self)
@@ -667,7 +667,7 @@ JSValue js_window_updateSurface(JSContext *js, JSValue self, int argc, JSValue *
   SDL_Window *w = js2SDL_Window(js,self);
   if (!SDL_UpdateWindowSurface(w))
     return JS_ThrowReferenceError(js, "Failed to update window surface: %s", SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_updateSurfaceRects(JSContext *js, JSValue self, int argc, JSValue *argv)
@@ -689,7 +689,7 @@ JSValue js_window_updateSurfaceRects(JSContext *js, JSValue self, int argc, JSVa
   
   if (!SDL_UpdateWindowSurfaceRects(w, rects, len))
     return JS_ThrowReferenceError(js, "Failed to update window surface rects: %s", SDL_GetError());
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 JSValue js_window_get_flags(JSContext *js, JSValue self)
@@ -702,7 +702,7 @@ JSValue js_window_sync(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   SDL_Window *w = js2SDL_Window(js,self);
   SDL_SyncWindow(w);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static const JSCFunctionListEntry js_SDL_Window_funcs[] = {
@@ -768,7 +768,7 @@ JSC_CCALL(renderer_load_texture,
 JSC_CCALL(renderer_get_image,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   SDL_Surface *surf = NULL;
-  if (!JS_IsUndefined(argv[0])) {
+  if (!JS_IsNull(argv[0])) {
     rect rect = js2rect(js,argv[0]);
     surf = SDL_RenderReadPixels(r,&rect);
   } else
@@ -812,7 +812,7 @@ JSC_CCALL(renderer_point,
       pts[i] = (SDL_FPoint){pt.x, pt.y};
     }
     SDL_RenderPoints(r, pts, len);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   HMM_Vec2 pt = js2vec2(js, argv[0]);
@@ -839,7 +839,7 @@ JSC_CCALL(renderer_rects,
   /* array-of-rectangles case */
   if (JS_IsArray(js, argv[0])) {
     int len = JS_ArrayLength(js, argv[0]);
-    if (len <= 0) return JS_UNDEFINED;
+    if (len <= 0) return JS_NULL;
 
     SDL_FRect rects[len];
 
@@ -852,7 +852,7 @@ JSC_CCALL(renderer_rects,
 
     if (!SDL_RenderFillRects(r, rects, len))
       return JS_ThrowReferenceError(js, "SDL_RenderFillRects: %s", SDL_GetError());
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
 
   /* single-rect path */
@@ -893,7 +893,7 @@ JSC_CCALL(renderer_geometry_raw,
   
   // argv[0] is texture
   SDL_Texture *tex = NULL;
-  if (argc > 0 && !JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0]))
+  if (argc > 0 && !JS_IsNull(argv[0]) && !JS_IsNull(argv[0]))
     tex = js2SDL_Texture(js,argv[0]);
   
   // Get blob data
@@ -1045,7 +1045,7 @@ static JSValue logicalpresentation2js(JSContext *js,
 
 static SDL_RendererLogicalPresentation
 js2SDL_LogicalPresentation(JSContext *js, JSValue v){
-  if(JS_IsUndefined(v)) return SDL_LOGICAL_PRESENTATION_DISABLED;
+  if(JS_IsNull(v)) return SDL_LOGICAL_PRESENTATION_DISABLED;
   const char *s = JS_ToCString(js, v);
   if(!s) return SDL_LOGICAL_PRESENTATION_DISABLED;
   const pres_entry *it;
@@ -1069,13 +1069,13 @@ JSValue js_renderer_get_target(JSContext *js, JSValue self)
 JSValue js_renderer_set_target(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsNull(val) || JS_IsUndefined(val))
+  if (JS_IsNull(val) || JS_IsNull(val))
     SDL_SetRenderTarget(r, NULL);
   else {
     SDL_Texture *tex = js2SDL_Texture(js,val);
     SDL_SetRenderTarget(r,tex);
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Logical presentation getter/setter
@@ -1101,7 +1101,7 @@ JSValue js_renderer_set_logicalPresentation(JSContext *js, JSValue self, JSValue
   SDL_RendererLogicalPresentation mode = js2SDL_LogicalPresentation(js, mode_val);
   JS_FreeValue(js, mode_val);
   SDL_SetRenderLogicalPresentation(r, w, h, mode);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Viewport getter/setter
@@ -1116,13 +1116,13 @@ JSValue js_renderer_get_viewport(JSContext *js, JSValue self)
 JSValue js_renderer_set_viewport(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsNull(val) || JS_IsUndefined(val))
+  if (JS_IsNull(val) || JS_IsNull(val))
     SDL_SetRenderViewport(r,NULL);
   else {
     rect view = js2rect(js,val);
     SDL_SetRenderViewport(r,&view);
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Clip rect getter/setter
@@ -1137,13 +1137,13 @@ JSValue js_renderer_get_clipRect(JSContext *js, JSValue self)
 JSValue js_renderer_set_clipRect(JSContext *js, JSValue self, JSValue val)
 {
   SDL_Renderer *r = js2SDL_Renderer(js,self);
-  if (JS_IsNull(val) || JS_IsUndefined(val))
+  if (JS_IsNull(val) || JS_IsNull(val))
     SDL_SetRenderClipRect(r,NULL);
   else {
     rect clip = js2rect(js,val);
     SDL_SetRenderClipRect(r,&clip);
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Scale getter/setter
@@ -1160,7 +1160,7 @@ JSValue js_renderer_set_scale(JSContext *js, JSValue self, JSValue val)
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   HMM_Vec2 scale = js2vec2(js,val);
   SDL_SetRenderScale(r, scale.x, scale.y);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Draw color getter/setter (float version)
@@ -1182,7 +1182,7 @@ JSValue js_renderer_set_drawColor(JSContext *js, JSValue self, JSValue val)
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   colorf color = js2color(js,val);
   SDL_SetRenderDrawColorFloat(r, color.r, color.g, color.b, color.a);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Color scale getter/setter
@@ -1199,7 +1199,7 @@ JSValue js_renderer_set_colorScale(JSContext *js, JSValue self, JSValue val)
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   float scale = js2number(js,val);
   SDL_SetRenderColorScale(r, scale);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Draw blend mode getter/setter
@@ -1216,7 +1216,7 @@ JSValue js_renderer_set_drawBlendMode(JSContext *js, JSValue self, JSValue val)
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   SDL_BlendMode mode = js2blendmode(js,val);
   SDL_SetRenderDrawBlendMode(r, mode);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // VSync getter/setter
@@ -1233,7 +1233,7 @@ JSValue js_renderer_set_vsync(JSContext *js, JSValue self, JSValue val)
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   int vsync = js2number(js,val);
   SDL_SetRenderVSync(r, vsync);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Read-only properties
@@ -1360,7 +1360,7 @@ JSC_CCALL(renderer_textureTiled,
   SDL_Texture *tex = js2SDL_Texture(js, argv[0]);
   
   rect src_rect = {0};
-  if (argc > 1 && !JS_IsNull(argv[1]) && !JS_IsUndefined(argv[1]))
+  if (argc > 1 && !JS_IsNull(argv[1]) && !JS_IsNull(argv[1]))
     src_rect = js2rect(js, argv[1]);
   
   float scale = 1.0f;
@@ -1368,7 +1368,7 @@ JSC_CCALL(renderer_textureTiled,
     scale = js2number(js, argv[2]);
     
   rect dst_rect = {0};
-  if (argc > 3 && !JS_IsNull(argv[3]) && !JS_IsUndefined(argv[3]))
+  if (argc > 3 && !JS_IsNull(argv[3]) && !JS_IsNull(argv[3]))
     dst_rect = js2rect(js, argv[3]);
   
   if (!SDL_RenderTextureTiled(r, tex, 
@@ -1393,7 +1393,7 @@ JSC_CCALL(renderer_debugText,
 JSC_CCALL(renderer_readPixels,
   SDL_Renderer *r = js2SDL_Renderer(js,self);
   rect read_rect = {0};
-  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0]))
+  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsNull(argv[0]))
     read_rect = js2rect(js, argv[0]);
     
   SDL_Surface *surf = SDL_RenderReadPixels(r, 
@@ -1513,13 +1513,13 @@ static JSValue js_texture_constructor(JSContext *js, JSValueConst new_target, in
     
     JSValue format_val = JS_GetPropertyStr(js, obj, "format");
     SDL_PixelFormat format = SDL_PIXELFORMAT_RGBA8888;
-    if (!JS_IsUndefined(format_val))
+    if (!JS_IsNull(format_val))
       format = js2pixelformat(js, format_val);
     JS_FreeValue(js, format_val);
     
     // Check for pixels data
     JSValue pixels_val = JS_GetPropertyStr(js, obj, "pixels");
-    if (!JS_IsUndefined(pixels_val)) {
+    if (!JS_IsNull(pixels_val)) {
       // Create surface first, then texture
       size_t size;
       uint8_t *pixels = js_get_blob_data(js, &size, pixels_val);
@@ -1611,7 +1611,7 @@ JSValue js_texture_set_alphaMod(JSContext *js, JSValue self, JSValue val)
   SDL_Texture *tex = js2SDL_Texture(js,self);
   float alpha = js2number(js,val);
   SDL_SetTextureAlphaModFloat(tex, alpha);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Color mod getter/setter
@@ -1632,7 +1632,7 @@ JSValue js_texture_set_colorMod(JSContext *js, JSValue self, JSValue val)
   SDL_Texture *tex = js2SDL_Texture(js,self);
   colorf color = js2color(js,val);
   SDL_SetTextureColorModFloat(tex, color.r, color.g, color.b);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Blend mode getter/setter
@@ -1649,7 +1649,7 @@ JSValue js_texture_set_blendMode(JSContext *js, JSValue self, JSValue val)
   SDL_Texture *tex = js2SDL_Texture(js,self);
   SDL_BlendMode mode = js2blendmode(js,val);
   SDL_SetTextureBlendMode(tex, mode);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Scale mode getter/setter
@@ -1668,7 +1668,7 @@ JSValue js_texture_set_scaleMode(JSContext *js, JSValue self, JSValue val)
   SDL_Texture *tex = js2SDL_Texture(js,self);
   SDL_ScaleMode mode = js2SDL_ScaleMode(js,val);
   SDL_SetTextureScaleMode(tex, mode);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // Size getter (read-only)
@@ -1687,7 +1687,7 @@ JSC_CCALL(texture_update,
   void *pixels = NULL;
   int pitch = 0;
   
-  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0]))
+  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsNull(argv[0]))
     update_rect = js2rect(js, argv[0]);
   
   if (argc >= 2) {
@@ -1713,7 +1713,7 @@ JSC_CCALL(texture_lock,
   void *pixels;
   int pitch;
   
-  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0]))
+  if (argc >= 1 && !JS_IsNull(argv[0]) && !JS_IsNull(argv[0]))
     lock_rect = js2rect(js, argv[0]);
     
   if (!SDL_LockTexture(tex, 

source/qjs_socket.c

@@ -35,10 +35,10 @@ JSC_CCALL(socket_getaddrinfo,
     hints.ai_family = AF_UNSPEC;
     hints.ai_socktype = SOCK_STREAM;
     
-    if (!JS_IsNull(argv[0]) && !JS_IsUndefined(argv[0]))
+    if (!JS_IsNull(argv[0]) && !JS_IsNull(argv[0]))
         node = JS_ToCString(js, argv[0]);
     
-    if (!JS_IsNull(argv[1]) && !JS_IsUndefined(argv[1]))
+    if (!JS_IsNull(argv[1]) && !JS_IsNull(argv[1]))
         service = JS_ToCString(js, argv[1]);
     
     // Parse optional hints object
@@ -46,7 +46,7 @@ JSC_CCALL(socket_getaddrinfo,
         JSValue val;
         
         val = JS_GetPropertyStr(js, argv[2], "family");
-        if (!JS_IsUndefined(val)) {
+        if (!JS_IsNull(val)) {
             const char *family = JS_ToCString(js, val);
             if (strcmp(family, "AF_INET") == 0) hints.ai_family = AF_INET;
             else if (strcmp(family, "AF_INET6") == 0) hints.ai_family = AF_INET6;
@@ -55,7 +55,7 @@ JSC_CCALL(socket_getaddrinfo,
         JS_FreeValue(js, val);
         
         val = JS_GetPropertyStr(js, argv[2], "socktype");
-        if (!JS_IsUndefined(val)) {
+        if (!JS_IsNull(val)) {
             const char *socktype = JS_ToCString(js, val);
             if (strcmp(socktype, "SOCK_STREAM") == 0) hints.ai_socktype = SOCK_STREAM;
             else if (strcmp(socktype, "SOCK_DGRAM") == 0) hints.ai_socktype = SOCK_DGRAM;
@@ -64,7 +64,7 @@ JSC_CCALL(socket_getaddrinfo,
         JS_FreeValue(js, val);
         
         val = JS_GetPropertyStr(js, argv[2], "flags");
-        if (!JS_IsUndefined(val)) {
+        if (!JS_IsNull(val)) {
             hints.ai_flags = js2number(js, val);
         }
         JS_FreeValue(js, val);
@@ -192,7 +192,7 @@ JSC_CCALL(socket_bind,
         }
     }
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(socket_connect,
@@ -220,7 +220,7 @@ JSC_CCALL(socket_connect,
         }
     }
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(socket_listen,
@@ -236,7 +236,7 @@ JSC_CCALL(socket_listen,
         return JS_ThrowReferenceError(js, "listen failed: %s", strerror(errno));
     }
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(socket_accept,
@@ -448,7 +448,7 @@ JSC_CCALL(socket_shutdown,
         return JS_ThrowReferenceError(js, "shutdown failed: %s", strerror(errno));
     }
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(socket_getpeername,
@@ -538,7 +538,7 @@ JSC_CCALL(socket_setsockopt,
         return JS_ThrowTypeError(js, "Invalid option value");
     }
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 JSC_CCALL(socket_close,
@@ -548,7 +548,7 @@ JSC_CCALL(socket_close,
     if (close(sockfd) != 0)
         return JS_ThrowReferenceError(js, "close failed: %s", strerror(errno));
     
-    return JS_UNDEFINED;
+    return JS_NULL;
 )
 
 static const JSCFunctionListEntry js_socket_funcs[] = {

source/qjs_soloud.c

@@ -147,7 +147,7 @@ static const JSCFunctionListEntry *js_Wav_funcs;
 static JSValue js_voice_set_##ENTRY (JSContext *js, JSValueConst self, JSValue val) { \
   unsigned int voice = *js2voice(js, self); \
   Soloud_set##ENTRY(soloud, voice, js2##TYPE(js, val)); \
-  return JS_UNDEFINED; \
+  return JS_NULL; \
 } \
 static JSValue js_voice_get_##ENTRY (JSContext *js, JSValueConst self) { \
   unsigned int voice = *js2voice(js,self); \
@@ -158,14 +158,14 @@ static JSValue js_voice_seek(JSContext *js, JSValue self, int argc, JSValue *arg
 {
   unsigned int voice = *js2voice(js, self);
   Soloud_seek(soloud, voice, js2number(js, argv[0]));
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_voice_stop(JSContext *js, JSValue self, int argc, JSValue *argv)
 {
   unsigned int voice = *js2voice(js, self);
   Soloud_stop(soloud, voice);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_voice_setInaudibleBehavior(JSContext *js, JSValueConst self, int argc, JSValue *argv)
@@ -174,7 +174,7 @@ static JSValue js_voice_setInaudibleBehavior(JSContext *js, JSValueConst self, i
   int mustTick = js2bool(js, argv[0]);
   int kill = js2bool(js, argv[1]);
   Soloud_setInaudibleBehavior(soloud, voice, mustTick, kill);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 SOLOUD_GETSET(Volume, number);

source/qjs_spline.c

@@ -31,7 +31,7 @@ JSC_CCALL(spline_catmull,
   HMM_Vec2 *samples = catmull_rom_ma_v2(points, param);
 
   if (!samples)
-    ret = JS_UNDEFINED;
+    ret = JS_NULL;
   else
     ret = vecarr2js(js, samples, arrlen(samples));
 
@@ -45,7 +45,7 @@ JSC_CCALL(spline_bezier,
   HMM_Vec2 *samples = bezier_cb_ma_v2(points, param);
 
   if (!samples)
-    ret = JS_UNDEFINED;
+    ret = JS_NULL;
   else
     ret = vecarr2js(js, samples, arrlen(samples));
     

source/qjs_sprite.c

@@ -41,7 +41,7 @@ JSC_CCALL(sprite_set_affine,
 
 JSC_CCALL(sprite_set_image,
   sprite *sp = js2sprite(js,self);
-  if (!JS_IsUndefined(sp->image))
+  if (!JS_IsNull(sp->image))
     JS_FreeValue(js,sp->image);
   sp->image = JS_DupValue(js, argv[0]);
 )
@@ -75,7 +75,7 @@ static JSValue js_sprite_constructor(JSContext *js, JSValueConst new_target, int
     JS_GETATOM(js, sp->color, argv[0], color, color)
     
     JSValue image = JS_GetProperty(js, argv[0], JS_NewAtom(js, "image"));
-    if (!JS_IsUndefined(image)) {
+    if (!JS_IsNull(image)) {
       sp->image = image;  // Transfer ownership, no need to dup
     }
   }

source/qjs_steam.cpp

@@ -49,14 +49,14 @@ JSC_CCALL(steam_shutdown,
     SteamAPI_Shutdown();
     steam_initialized = false;
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(steam_run_callbacks,
   if (steam_initialized) {
     SteamAPI_RunCallbacks();
   }
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 // USER STATS & ACHIEVEMENTS
@@ -84,7 +84,7 @@ JSC_CCALL(stats_get_int,
   bool success = SteamAPI_ISteamUserStats_GetStatInt32(steam_stats, name, &value);
   JS_FreeCString(js, name);
   
-  if (!success) return JS_UNDEFINED;
+  if (!success) return JS_NULL;
   return JS_NewInt32(js, value);
 )
 
@@ -98,7 +98,7 @@ JSC_CCALL(stats_get_float,
   bool success = SteamAPI_ISteamUserStats_GetStatFloat(steam_stats, name, &value);
   JS_FreeCString(js, name);
   
-  if (!success) return JS_UNDEFINED;
+  if (!success) return JS_NULL;
   return JS_NewFloat64(js, value);
 )
 
@@ -143,7 +143,7 @@ JSC_CCALL(achievement_get,
   bool success = SteamAPI_ISteamUserStats_GetAchievement(steam_stats, name, &achieved);
   JS_FreeCString(js, name);
   
-  if (!success) return JS_UNDEFINED;
+  if (!success) return JS_NULL;
   return JS_NewBool(js, achieved);
 )
 
@@ -185,7 +185,7 @@ JSC_CCALL(achievement_name,
   JS_ToUint32(js, &index, argv[0]);
   
   const char *name = SteamAPI_ISteamUserStats_GetAchievementName(steam_stats, index);
-  if (!name) return JS_UNDEFINED;
+  if (!name) return JS_NULL;
   
   return JS_NewString(js, name);
 )
@@ -307,7 +307,7 @@ JSC_CCALL(cloud_enable,
   
   bool enable = JS_ToBool(js, argv[0]);
   SteamAPI_ISteamRemoteStorage_SetCloudEnabledForApp(steam_remote, enable);
-  return JS_UNDEFINED;
+  return JS_NULL;
 )
 
 JSC_CCALL(cloud_quota,
@@ -316,7 +316,7 @@ JSC_CCALL(cloud_quota,
   uint64 total, available;
   bool success = SteamAPI_ISteamRemoteStorage_GetQuota(steam_remote, &total, &available);
   
-  if (!success) return JS_UNDEFINED;
+  if (!success) return JS_NULL;
   
   JSValue obj = JS_NewObject(js);
   JS_SetPropertyStr(js, obj, "total", JS_NewBigUint64(js, total));
@@ -367,7 +367,7 @@ JSC_CCALL(cloud_read,
   int32 size = SteamAPI_ISteamRemoteStorage_GetFileSize(steam_remote, filename);
   if (size <= 0) {
     JS_FreeCString(js, filename);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   uint8_t *buffer = (uint8_t*)js_malloc(js, size);
@@ -381,7 +381,7 @@ JSC_CCALL(cloud_read,
   
   if (read != size) {
     js_free(js, buffer);
-    return JS_UNDEFINED;
+    return JS_NULL;
   }
   
   JSValue result = js_new_blob_stoned_copy(js, buffer, size);
@@ -509,6 +509,6 @@ extern "C" JSValue js_steam_use(JSContext *js) {
 #else
 // Stub when Steam is disabled
 extern "C" JSValue js_steam_use(JSContext *js) {
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 #endif

source/qjs_transform.c

@@ -35,23 +35,23 @@ static JSValue js_transform_get_change_hook(JSContext *js, JSValueConst self)
 static JSValue js_transform_set_change_hook(JSContext *js, JSValueConst self, JSValue v)
 {
   transform *t = js2transform(js,self);
-  if (!JS_IsUndefined(v) && !JS_IsFunction(js,v)) return JS_ThrowReferenceError(js, "Hook must be a function.");
+  if (!JS_IsNull(v) && !JS_IsFunction(js,v)) return JS_ThrowReferenceError(js, "Hook must be a function.");
   JS_FreeValue(js,t->change_hook);
   t->change_hook = JS_DupValue(js,v);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_transform_get_parent(JSContext *js, JSValueConst self)
 {
   transform *t = js2transform(js,self);
   if (t->parent) return JS_DupValue(js,t->jsparent);
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 static JSValue js_transform_set_parent(JSContext *js, JSValueConst self, JSValue v)
 {
   transform *p = js2transform(js,v);
-  if (!JS_IsUndefined(v) && !p)
+  if (!JS_IsNull(v) && !p)
     return JS_ThrowReferenceError(js,"Parent must be another transform.");
 
   transform *t = js2transform(js,self);
@@ -62,7 +62,7 @@ static JSValue js_transform_set_parent(JSContext *js, JSValueConst self, JSValue
   if (t->parent) {
     transform *cur_parent = t->parent;
     JS_FreeValue(js,t->jsparent);
-    t->jsparent = JS_UNDEFINED;
+    t->jsparent = JS_NULL;
 
     for (int i = 0; i < arrlen(cur_parent->children); i++) {
       if (cur_parent->children[i] == t) {
@@ -91,7 +91,7 @@ static JSValue js_transform_set_parent(JSContext *js, JSValueConst self, JSValue
 
   transform_apply(t);
     
-  return JS_UNDEFINED;
+  return JS_NULL;
 }
 
 // TRANSFORM ACTION FUNCTIONS
@@ -152,9 +152,9 @@ JSC_CCALL(transform_unit,
 
 JSC_CCALL(transform_trs,
   transform *t = js2transform(js,self);
-  t->pos = JS_IsUndefined(argv[0]) ? v3zero : js2vec3(js,argv[0]);
-  t->rotation = JS_IsUndefined(argv[1]) ? QUAT1 : js2quat(js,argv[1]);
-  t->scale = JS_IsUndefined(argv[2]) ? v3one : js2vec3(js,argv[2]);
+  t->pos = JS_IsNull(argv[0]) ? v3zero : js2vec3(js,argv[0]);
+  t->rotation = JS_IsNull(argv[1]) ? QUAT1 : js2quat(js,argv[1]);
+  t->scale = JS_IsNull(argv[2]) ? v3one : js2vec3(js,argv[2]);
   transform_apply(t);
 )