diff --git a/source/quickjs.c b/source/quickjs.c
index f370bebb..3163de6e 100644
--- a/source/quickjs.c
+++ b/source/quickjs.c
@@ -773,8 +773,6 @@ struct JSContext {
   JSGCRef *last_gc_ref; /* used to reference temporary GC roots (list) */
 
   JSValue *class_proto;
-  JSValue function_proto;
-  JSValue array_ctor;
   JSValue regexp_ctor;
   JSValue native_error_proto[JS_NATIVE_ERROR_COUNT];
   JSValue array_proto_values;
@@ -1645,7 +1643,6 @@ enum OPCodeEnum {
 static JSValue js_call_c_function (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, JSValue *argv);
 static JSValue js_call_bound_function (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, JSValue *argv);
 static JSValue JS_CallInternal (JSContext *ctx, JSValue func_obj, JSValue this_obj, int argc, JSValue *argv, int flags);
-static __exception int JS_ToArrayLength (JSContext *ctx, uint32_t *plen, JSValue val, BOOL is_array_ctor);
 static JSValue JS_EvalObject (JSContext *ctx, JSValue this_obj, JSValue val, int flags, int scope_idx);
 int JS_DeleteProperty (JSContext *ctx, JSValue obj, JSValue prop);
 JSValue __attribute__ ((format (printf, 2, 3)))
@@ -2261,8 +2258,6 @@ static int ctx_gc (JSContext *ctx) {
   /* Copy roots: global object, class prototypes, exception, etc. */
   ctx->global_obj = gc_copy_value (ctx, ctx->global_obj, &to_free, to_end);
   ctx->global_var_obj = gc_copy_value (ctx, ctx->global_var_obj, &to_free, to_end);
-  ctx->function_proto = gc_copy_value (ctx, ctx->function_proto, &to_free, to_end);
-  ctx->array_ctor = gc_copy_value (ctx, ctx->array_ctor, &to_free, to_end);
   ctx->regexp_ctor = gc_copy_value (ctx, ctx->regexp_ctor, &to_free, to_end);
   ctx->throw_type_error = gc_copy_value (ctx, ctx->throw_type_error, &to_free, to_end);
   ctx->eval_obj = gc_copy_value (ctx, ctx->eval_obj, &to_free, to_end);
@@ -2545,7 +2540,7 @@ JSContext *JS_NewContextRaw (JSRuntime *rt) {
   list_add_tail (&ctx->link, &rt->context_list);
   for (i = 0; i < rt->class_count; i++)
     ctx->class_proto[i] = JS_NULL;
-  ctx->array_ctor = JS_NULL;
+
   ctx->regexp_ctor = JS_NULL;
 
   /* Initialize VM stacks for trampoline */
@@ -2667,7 +2662,6 @@ static void JS_MarkContext (JSRuntime *rt, JSContext *ctx, JS_MarkFunc *mark_fun
   for (i = 0; i < rt->class_count; i++) {
     JS_MarkValue (rt, ctx->class_proto[i], mark_func);
   }
-  JS_MarkValue (rt, ctx->array_ctor, mark_func);
   JS_MarkValue (rt, ctx->regexp_ctor, mark_func);
 }
 
@@ -3500,10 +3494,9 @@ static int js_method_set_properties (JSContext *ctx, JSValue func_obj, JSValue n
 }
 
 /* Note: at least 'length' arguments will be readable in 'argv' */
-static JSValue JS_NewCFunction3 (JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic, JSValue proto_val) {
+static JSValue JS_NewCFunction3 (JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic) {
   JSValue func_obj;
   JSFunction *f;
-  (void)proto_val;
 
   func_obj = js_new_function (ctx, JS_FUNC_KIND_C);
   if (JS_IsException (func_obj)) return func_obj;
@@ -3519,7 +3512,7 @@ static JSValue JS_NewCFunction3 (JSContext *ctx, JSCFunction *func, const char *
 
 /* Note: at least 'length' arguments will be readable in 'argv' */
 JSValue JS_NewCFunction2 (JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic) {
-  return JS_NewCFunction3 (ctx, func, name, length, cproto, magic, ctx->function_proto);
+  return JS_NewCFunction3 (ctx, func, name, length, cproto, magic);
 }
 
 typedef struct JSCFunctionDataRecord {
@@ -5675,56 +5668,6 @@ redo:
   return 0;
 }
 
-static __exception int JS_ToArrayLength (JSContext *ctx, uint32_t *plen, JSValue val, BOOL is_array_ctor) {
-  uint32_t tag, len;
-
-  tag = JS_VALUE_GET_TAG (val);
-  switch (tag) {
-  case JS_TAG_INT:
-  case JS_TAG_BOOL:
-  case JS_TAG_NULL: {
-    int v;
-    v = JS_VALUE_GET_INT (val);
-    if (v < 0) goto fail;
-    len = v;
-  } break;
-  default:
-    if (JS_TAG_IS_FLOAT64 (tag)) {
-      double d;
-      d = JS_VALUE_GET_FLOAT64 (val);
-      if (!(d >= 0 && d <= UINT32_MAX)) goto fail;
-      len = (uint32_t)d;
-      if (len != d) goto fail;
-    } else {
-      uint32_t len1;
-
-      if (is_array_ctor) {
-        val = JS_ToNumber (ctx, val);
-        if (JS_IsException (val)) return -1;
-        /* cannot recurse because val is a number */
-        if (JS_ToArrayLength (ctx, &len, val, TRUE)) return -1;
-      } else {
-        /* legacy behavior: must do the conversion twice and compare */
-        if (JS_ToUint32 (ctx, &len, val)) {
-          return -1;
-        }
-        val = JS_ToNumber (ctx, val);
-        if (JS_IsException (val)) return -1;
-        /* cannot recurse because val is a number */
-        if (JS_ToArrayLength (ctx, &len1, val, FALSE)) return -1;
-        if (len1 != len) {
-        fail:
-          JS_ThrowRangeError (ctx, "invalid array length");
-          return -1;
-        }
-      }
-    }
-    break;
-  }
-  *plen = len;
-  return 0;
-}
-
 #define MAX_SAFE_INTEGER (((int64_t)1 << 53) - 1)
 
 /* convert a value to a length between 0 and MAX_SAFE_INTEGER.
@@ -19350,10 +19293,6 @@ static JSValue JS_ToObject (JSContext *ctx, JSValue val) {
 
 /* Function class */
 
-static JSValue js_function_proto (JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
-  return JS_NULL;
-}
-
 static __exception int js_get_length32 (JSContext *ctx, uint32_t *pres, JSValue obj) {
   int tag = JS_VALUE_GET_TAG (obj);
 
@@ -24560,11 +24499,7 @@ void JS_AddIntrinsicBasicObjects (JSContext *ctx) {
   int i;
 
   ctx->class_proto[JS_CLASS_OBJECT] = JS_NewObjectProto (ctx, JS_NULL);
-
-  /* function_proto is kept for API compatibility but functions are now
-   * intrinsic types */
-  ctx->function_proto
-    = JS_NewCFunction3 (ctx, js_function_proto, "", 0, JS_CFUNC_generic, 0, ctx->class_proto[JS_CLASS_OBJECT]);
+  
   ctx->class_proto[JS_CLASS_ERROR] = JS_NewObject (ctx);
 
   for (i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {