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Implement Proxy object [[Construct]] internal method (#3657)

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The algorithm is based on ECMA-262 v6, 9.5.14

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2020-04-06 12:17:23 +02:00
committed by GitHub
parent 48fa2ec01b
commit 901e57c7d0
4 changed files with 188 additions and 12 deletions
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jerry-core/ecma/operations/ecma-proxy-object.c
+55 -2
View File
@@ -1224,8 +1224,61 @@ ecma_proxy_object_construct (ecma_object_t *obj_p, /**< proxy object */
ecma_length_t argc) /**< number of arguments */
{
JERRY_ASSERT (ECMA_OBJECT_IS_PROXY (obj_p));
JERRY_UNUSED_4 (obj_p, new_target_p, args_p, argc);
return ecma_raise_type_error (ECMA_ERR_MSG ("UNIMPLEMENTED: Proxy.[[Construct]]"));
ecma_proxy_object_t * proxy_obj_p = (ecma_proxy_object_t *) obj_p;
/* 1. */
ecma_value_t handler = proxy_obj_p->handler;
/* 2-5. */
ecma_value_t trap = ecma_validate_proxy_object (handler, LIT_MAGIC_STRING_CONSTRUCT);
/* 6. */
if (ECMA_IS_VALUE_ERROR (trap))
{
return trap;
}
ecma_value_t target = proxy_obj_p->target;
ecma_object_t *target_obj_p = ecma_get_object_from_value (target);
/* 7. */
if (ecma_is_value_undefined (trap))
{
JERRY_ASSERT (ecma_object_is_constructor (target_obj_p));
return ecma_op_function_construct (target_obj_p, new_target_p, args_p, argc);
}
/* 8. */
ecma_value_t arg_array = ecma_op_create_array_object (args_p, argc, false);
ecma_object_t *func_obj_p = ecma_get_object_from_value (trap);
ecma_value_t new_target_value = ecma_make_object_value (new_target_p);
ecma_value_t function_call_args[] = {target, arg_array, new_target_value};
/* 9. */
ecma_value_t new_obj = ecma_op_function_call (func_obj_p, handler, function_call_args, 3);
ecma_free_value (arg_array);
ecma_deref_object (func_obj_p);
/* 10 .*/
if (ECMA_IS_VALUE_ERROR (new_obj))
{
return new_obj;
}
/* 11. */
if (!ecma_is_value_object (new_obj))
{
ecma_free_value (new_obj);
return ecma_raise_type_error (ECMA_ERR_MSG ("Trap returned non-object"));
}
/* 12. */
return new_obj;
} /* ecma_proxy_object_construct */
#endif /* ENABLED (JERRY_ES2015_BUILTIN_PROXY) */
jerry-core/lit/lit-magic-strings.inc.h
+2 -1
View File
@@ -589,7 +589,8 @@ LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_TYPE_ERROR_UL, "TypeError")
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_UNDEFINED_UL, "Undefined")
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING__PROTO__, "__proto__")
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_ARGUMENTS, "arguments")
#if ENABLED (JERRY_ES2015_BUILTIN_REFLECT)
#if ENABLED (JERRY_ES2015_BUILTIN_PROXY) \
|| ENABLED (JERRY_ES2015_BUILTIN_REFLECT)
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_CONSTRUCT, "construct")
#endif
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_DECODE_URI, "decodeURI")