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atoms

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This commit is contained in:
John Alanbrook
2026-01-23 05:44:02 -06:00
parent b60e79ccad
commit 0714017547
4 changed files with 54 additions and 163 deletions
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1
source/quickjs-opcode.h
View File

@@ -134,7 +134,6 @@ DEF( put_array_el, 1, 3, 0, none)
DEF( define_field, 5, 2, 1, atom)
DEF( set_name, 5, 1, 1, atom)
DEF(set_name_computed, 1, 2, 2, none)
DEF( set_proto, 1, 2, 1, none)
DEF(define_array_el, 1, 3, 2, none)
DEF(copy_data_properties, 2, 3, 3, u8)
DEF( define_method, 6, 2, 1, atom_u8)

144
source/quickjs.c
View File

@@ -737,7 +737,6 @@ struct JSObject {
uint8_t stone : 1;
uint8_t free_mark : 1; /* only used when freeing objects with cycles */
uint8_t has_immutable_prototype : 1; /* cannot modify the prototype */
uint8_t tmp_mark : 1; /* used in JS_WriteObjectRec() */
uint16_t class_id; /* see JS_CLASS_x */
};
@@ -4501,7 +4500,6 @@ static JSValue JS_NewObjectFromShape(JSContext *ctx, JSShape *sh, JSClassID clas
p->class_id = class_id;
p->stone = FALSE;
p->free_mark = 0;
p->has_immutable_prototype = 0;
p->tmp_mark = 0;
p->object_key_atom = JS_ATOM_NULL;
p->u.opaque = NULL;
@@ -6271,79 +6269,6 @@ static inline __exception int js_poll_interrupts(JSContext *ctx)
}
}
static void JS_SetImmutablePrototype(JSContext *ctx, JSValueConst obj)
{
JSObject *p;
if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
return;
p = JS_VALUE_GET_OBJ(obj);
p->has_immutable_prototype = TRUE;
}
/* Return -1 (exception) or TRUE. */
static int JS_SetPrototypeInternal(JSContext *ctx, JSValueConst obj,
JSValueConst proto_val)
{
JSObject *proto, *p, *p1;
JSShape *sh;
if (JS_VALUE_GET_TAG(obj) == JS_TAG_NULL)
goto not_obj;
p = JS_VALUE_GET_OBJ(obj);
if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) {
if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_NULL) {
not_obj:
JS_ThrowTypeErrorNotAnObject(ctx);
return -1;
}
proto = NULL;
} else
proto = JS_VALUE_GET_OBJ(proto_val);
if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
return TRUE;
sh = p->shape;
if (sh->proto == proto)
return TRUE;
if (unlikely(p->has_immutable_prototype)) {
JS_ThrowTypeError(ctx, "prototype is immutable");
return -1;
}
if (unlikely(!p->stone)) {
JS_ThrowTypeError(ctx, "object is not stone");
return -1;
}
if (proto) {
/* check if there is a cycle */
p1 = proto;
do {
if (p1 == p) {
JS_ThrowTypeError(ctx, "circular prototype chain");
return -1;
}
/* Note: for Proxy objects, proto is NULL */
p1 = p1->shape->proto;
} while (p1 != NULL);
JS_DupValue(ctx, proto_val);
}
if (js_shape_prepare_update(ctx, p, NULL))
return -1;
sh = p->shape;
if (sh->proto)
JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
sh->proto = proto;
return TRUE;
}
/* return -1 (exception) or TRUE/FALSE */
int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val)
{
return JS_SetPrototypeInternal(ctx, obj, proto_val);
}
/* Return an Object, JS_NULL or JS_EXCEPTION in case of exotic object. */
JSValue JS_GetPrototype(JSContext *ctx, JSValueConst obj)
{
@@ -6671,7 +6596,7 @@ static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj,
return JS_GetPropertyNumber(ctx, this_obj, idx);
}
if (prop_tag == JS_TAG_STRING || prop_tag == JS_TAG_STRING_ROPE) {
if (prop_tag == JS_TAG_STRING || prop_tag == JS_TAG_STRING_ROPE || prop_tag == JS_TAG_OBJECT) {
atom = JS_ValueToAtom(ctx, prop);
JS_FreeValue(ctx, prop);
ret = JS_GetProperty(ctx, this_obj, atom);
@@ -6681,24 +6606,30 @@ static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj,
/* Unknown type -> null */
JS_FreeValue(ctx, prop);
return JS_ThrowInternalError(ctx, "attempted to access property on odd type");
return JS_ThrowInternalError(ctx, "attempted to access property on odd type: %d", prop_tag);
}
JSValue JS_SetPropertyNumber(JSContext *js, JSValueConst obj, int idx, JSValue val)
int JS_SetPropertyNumber(JSContext *js, JSValueConst obj, int idx, JSValue val)
{
if (JS_VALUE_GET_TAG(obj) != JS_TAG_ARRAY)
return JS_ThrowInternalError(js, "cannot set with a number on a non array");
if (JS_VALUE_GET_TAG(obj) != JS_TAG_ARRAY) {
JS_ThrowInternalError(js, "cannot set with a number on a non array");
return -1;
}
JSArray *a = JS_VALUE_GET_ARRAY(obj);
int len = a->len;
if (idx < 0 || idx >= len) {
return JS_ThrowInternalError(js, "index out of bounds");
JS_ThrowInternalError(js, "index out of bounds");
return -1;
}
if (a->stone)
return JS_ThrowInternalError(js, "cannot set on a stoned array");
if (a->stone) {
JS_ThrowInternalError(js, "cannot set on a stoned array");
return -1;
}
a->values[idx] = JS_DupValue(js, val);
return TRUE;
}
JSValue JS_GetPropertyNumber(JSContext *js, JSValueConst obj, int idx)
@@ -10451,15 +10382,13 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
if (is_proxy) {
JSValue name = call_argv[-1];
JSValue args = JS_NewArray(ctx);
JSValue args = JS_NewArrayLen(ctx, call_argc);
if (unlikely(JS_IsException(args)))
goto exception;
/* Move args into the array, then null out stack slots. */
for (i = 0; i < call_argc; i++) {
JSAtom prop = JS_NewAtomUInt32(ctx, i);
int r = JS_SetPropertyInternal(ctx, args, prop, call_argv[i]);
JS_FreeAtom(ctx, prop);
int r = JS_SetPropertyNumber(ctx, args, i, call_argv[i]);
call_argv[i] = JS_NULL;
if (unlikely(r < 0)) {
JS_FreeValue(ctx, args);
@@ -10496,14 +10425,12 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
call_argc = get_u16(pc);
pc += 2;
ret_val = JS_NewArray(ctx);
ret_val = JS_NewArrayLen(ctx, call_argc);
if (unlikely(JS_IsException(ret_val)))
goto exception;
call_argv = sp - call_argc;
for (i = 0; i < call_argc; i++) {
JSAtom prop = JS_NewAtomUInt32(ctx, i);
ret = JS_SetPropertyInternal(ctx, ret_val, prop, call_argv[i]);
JS_FreeAtom(ctx, prop);
JS_SetPropertyNumber(ctx, ret_val, i, call_argv[i]);
call_argv[i] = JS_NULL;
if (ret < 0) {
JS_FreeValue(ctx, ret_val);
@@ -11440,19 +11367,6 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
goto exception;
}
BREAK;
CASE(OP_set_proto):
{
JSValue proto;
sf->cur_pc = pc;
proto = sp[-1];
if (JS_IsObject(proto) || JS_IsNull(proto)) {
if (JS_SetPrototypeInternal(ctx, sp[-2], proto) < 0)
goto exception;
}
JS_FreeValue(ctx, proto);
sp--;
}
BREAK;
CASE(OP_define_method):
CASE(OP_define_method_computed):
{
@@ -12565,6 +12479,7 @@ enum {
TOK_DEF,
TOK_THIS,
TOK_DELETE,
TOK_VOID,
TOK_NEW,
TOK_IN,
TOK_DO,
@@ -28172,7 +28087,7 @@ static JSValue js_cell_array_sort(JSContext *ctx, JSValueConst this_val,
return JS_EXCEPTION;
/* Copy array */
JSValue result = JS_NewArray(ctx);
JSValue result = JS_NewArrayLen(ctx, len);
if (JS_IsException(result)) return result;
if (len == 0) return result;
@@ -29232,16 +29147,19 @@ static JSValue js_cell_pop(JSContext *ctx, JSValueConst this_val,
return last;
}
JSValue JS_ArrayPush(JSContext *ctx, JSValueConst obj, JSValueConst val)
int JS_ArrayPush(JSContext *ctx, JSValueConst obj, JSValueConst val)
{
if (!JS_IsArray(ctx, obj))
return JS_ThrowTypeError(ctx, "not an array");
if (!JS_IsArray(ctx, obj)) {
JS_ThrowTypeError(ctx, "not an array");
return -1;
}
JSValue stack[2];
stack[0] = obj;
stack[1] = val;
return js_cell_push(ctx, JS_NULL, 2, stack);
if (JS_IsException(js_cell_push(ctx, JS_NULL, 2, stack)))
return -1;
}
JSValue JS_ArrayPop(JSContext *ctx, JSValueConst obj)
@@ -29267,7 +29185,8 @@ static JSValue js_cell_push(JSContext *ctx, JSValueConst this_val,
if (js_intrinsic_array_push(ctx, arr, JS_DupValue(ctx, argv[i])) < 0)
return JS_EXCEPTION;
}
return JS_NewInt64(ctx, arr->len);
return JS_NULL;
}
static JSValue js_cell_proto(JSContext *ctx, JSValueConst this_val,
@@ -29760,7 +29679,6 @@ static void JS_AddIntrinsicBasicObjects(JSContext *ctx)
int i;
ctx->class_proto[JS_CLASS_OBJECT] = JS_NewObjectProto(ctx, JS_NULL);
JS_SetImmutablePrototype(ctx, ctx->class_proto[JS_CLASS_OBJECT]);
ctx->function_proto = JS_NewCFunction3(ctx, js_function_proto, "", 0,
JS_CFUNC_generic, 0,
@@ -29966,6 +29884,8 @@ void JS_AddIntrinsicBaseObjects(JSContext *ctx)
/* pop() - remove and return last element of array */
JS_SetPropertyStr(ctx, ctx->global_obj, "pop",
JS_NewCFunction(ctx, js_cell_pop, "pop", 1));
JS_SetPropertyStr(ctx, ctx->global_obj, "meme", JS_NewCFunction(ctx, js_cell_meme, "meme", 2));
}
}
@@ -31042,5 +30962,3 @@ JSValue js_math_cycles_use(JSContext *ctx)
JSContext *JS_GetContext(JSRuntime *rt) {
return rt->js;
}

2
source/quickjs.h
View File

@@ -639,7 +639,7 @@ JSValue JS_NewObject(JSContext *ctx);
JSValue JS_NewArray(JSContext *ctx);
JSValue JS_NewArrayLen(JSContext *ctx, uint32_t len);
JSValue JS_ArrayPush(JSContext *ctx, JSValueConst obj, JSValueConst val);
int JS_ArrayPush(JSContext *ctx, JSValueConst obj, JSValueConst val);
JSValue JS_ArrayPop(JSContext *ctx, JSValueConst obj);
JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj,