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Fix property enumeration order of built-in properties (#4761)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2021-09-13 15:32:14 +02:00
committed by GitHub
parent 2c2539c6b8
commit 723b26392d
13 changed files with 409 additions and 160 deletions
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jerry-core/ecma/operations/ecma-function-object.c
+108 -66
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@@ -1702,7 +1702,7 @@ ecma_op_lazy_instantiate_prototype_object (ecma_object_t *object_p) /**< the fun
ecma_property_value_t *prototype_prop_value_p;
prototype_prop_value_p = ecma_create_named_data_property (object_p,
ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE),
ECMA_PROPERTY_FLAG_WRITABLE,
ECMA_PROPERTY_BUILT_IN_WRITABLE,
&prototype_prop_p);
prototype_prop_value_p->value = ecma_make_object_value (proto_object_p);
@@ -1734,73 +1734,72 @@ ecma_op_function_try_to_lazy_instantiate_property (ecma_object_t *object_p, /**<
{
ecma_extended_object_t *ext_func_p = (ecma_extended_object_t *) object_p;
if (!ECMA_GET_FIRST_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp))
if (ECMA_GET_FIRST_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp))
{
/* Initialize 'length' property */
const ecma_compiled_code_t *bytecode_data_p = ecma_op_function_get_compiled_code (ext_func_p);
uint32_t len;
if (bytecode_data_p->status_flags & CBC_CODE_FLAGS_UINT16_ARGUMENTS)
{
cbc_uint16_arguments_t *args_p = (cbc_uint16_arguments_t *) bytecode_data_p;
len = args_p->argument_end;
}
else
{
cbc_uint8_arguments_t *args_p = (cbc_uint8_arguments_t *) bytecode_data_p;
len = args_p->argument_end;
}
if (bytecode_data_p->status_flags & CBC_CODE_FLAGS_HAS_EXTENDED_INFO)
{
uint8_t *extended_info_p = ecma_compiled_code_resolve_extended_info (bytecode_data_p);
if (*extended_info_p & CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH)
{
len = ecma_extended_info_decode_vlq (&extended_info_p);
}
}
/* Set tag bit to represent initialized 'length' property */
ECMA_SET_FIRST_BIT_TO_POINTER_TAG (ext_func_p->u.function.scope_cp);
ecma_property_t *value_prop_p;
ecma_property_value_t *value_p = ecma_create_named_data_property (object_p,
property_name_p,
ECMA_PROPERTY_FLAG_CONFIGURABLE,
&value_prop_p);
value_p->value = ecma_make_uint32_value (len);
return value_prop_p;
return NULL;
}
return NULL;
/* Initialize 'length' property */
const ecma_compiled_code_t *bytecode_data_p = ecma_op_function_get_compiled_code (ext_func_p);
uint32_t len;
if (bytecode_data_p->status_flags & CBC_CODE_FLAGS_UINT16_ARGUMENTS)
{
cbc_uint16_arguments_t *args_p = (cbc_uint16_arguments_t *) bytecode_data_p;
len = args_p->argument_end;
}
else
{
cbc_uint8_arguments_t *args_p = (cbc_uint8_arguments_t *) bytecode_data_p;
len = args_p->argument_end;
}
if (bytecode_data_p->status_flags & CBC_CODE_FLAGS_HAS_EXTENDED_INFO)
{
uint8_t *extended_info_p = ecma_compiled_code_resolve_extended_info (bytecode_data_p);
if (*extended_info_p & CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH)
{
len = ecma_extended_info_decode_vlq (&extended_info_p);
}
}
ecma_property_t *value_prop_p;
ecma_property_value_t *value_p = ecma_create_named_data_property (object_p,
property_name_p,
ECMA_PROPERTY_BUILT_IN_CONFIGURABLE,
&value_prop_p);
value_p->value = ecma_make_uint32_value (len);
return value_prop_p;
}
if (ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_NAME))
{
ecma_extended_object_t *ext_func_p = (ecma_extended_object_t *) object_p;
if (!ECMA_GET_SECOND_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp))
if (ECMA_GET_SECOND_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp))
{
/* Set tag bit to represent initialized 'name' property */
ECMA_SET_SECOND_BIT_TO_POINTER_TAG (ext_func_p->u.function.scope_cp);
const ecma_compiled_code_t *bytecode_data_p = ecma_op_function_get_compiled_code (ext_func_p);
if (CBC_FUNCTION_GET_TYPE (bytecode_data_p->status_flags) != CBC_FUNCTION_CONSTRUCTOR)
{
ecma_value_t value = *ecma_compiled_code_resolve_function_name (bytecode_data_p);
JERRY_ASSERT (ecma_is_value_string (value));
/* Initialize 'name' property */
ecma_property_t *value_prop_p;
ecma_property_value_t *value_p = ecma_create_named_data_property (object_p,
property_name_p,
ECMA_PROPERTY_FLAG_CONFIGURABLE,
&value_prop_p);
value_p->value = ecma_copy_value (value);
return value_prop_p;
}
return NULL;
}
return NULL;
const ecma_compiled_code_t *bytecode_data_p = ecma_op_function_get_compiled_code (ext_func_p);
if (CBC_FUNCTION_GET_TYPE (bytecode_data_p->status_flags) == CBC_FUNCTION_CONSTRUCTOR)
{
return NULL;
}
ecma_value_t value = *ecma_compiled_code_resolve_function_name (bytecode_data_p);
JERRY_ASSERT (ecma_is_value_string (value));
/* Initialize 'name' property */
ecma_property_t *value_prop_p;
ecma_property_value_t *value_p = ecma_create_named_data_property (object_p,
property_name_p,
ECMA_PROPERTY_BUILT_IN_CONFIGURABLE,
&value_prop_p);
value_p->value = ecma_copy_value (value);
return value_prop_p;
}
#endif /* JERRY_ESNEXT */
@@ -1826,7 +1825,7 @@ ecma_op_function_try_to_lazy_instantiate_property (ecma_object_t *object_p, /**<
/* The property_name_p argument contains the name. */
ecma_property_value_t *value_p = ecma_create_named_data_property (object_p,
property_name_p,
ECMA_PROPERTY_FIXED,
ECMA_PROPERTY_BUILT_IN_FIXED,
&value_prop_p);
value_p->value = is_arguments ? ECMA_VALUE_NULL : ECMA_VALUE_UNDEFINED;
return value_prop_p;
@@ -1842,7 +1841,7 @@ ecma_op_function_try_to_lazy_instantiate_property (ecma_object_t *object_p, /**<
property_name_p,
thrower_p,
thrower_p,
ECMA_PROPERTY_FIXED,
ECMA_PROPERTY_BUILT_IN_FIXED,
&caller_prop_p);
return caller_prop_p;
}
@@ -1909,13 +1908,10 @@ ecma_op_bound_function_try_to_lazy_instantiate_property (ecma_object_t *object_p
return NULL;
}
length_attributes = ECMA_PROPERTY_FLAG_CONFIGURABLE;
length_attributes = ECMA_PROPERTY_BUILT_IN_CONFIGURABLE;
length = ecma_get_number_from_value (bound_func_p->target_length) - (args_length - 1);
/* Set tag bit to represent initialized 'length' property */
ECMA_SET_FIRST_BIT_TO_POINTER_TAG (bound_func_p->header.u.bound_function.target_function);
#else /* !JERRY_ESNEXT */
length_attributes = ECMA_PROPERTY_FIXED;
length_attributes = ECMA_PROPERTY_BUILT_IN_FIXED;
ecma_object_t *target_func_p;
target_func_p = ECMA_GET_NON_NULL_POINTER_FROM_POINTER_TAG (ecma_object_t,
@@ -1960,7 +1956,7 @@ ecma_op_bound_function_try_to_lazy_instantiate_property (ecma_object_t *object_p
property_name_p,
thrower_p,
thrower_p,
ECMA_PROPERTY_FIXED,
ECMA_PROPERTY_BUILT_IN_FIXED,
&caller_prop_p);
return caller_prop_p;
}
@@ -1969,6 +1965,49 @@ ecma_op_bound_function_try_to_lazy_instantiate_property (ecma_object_t *object_p
return NULL;
} /* ecma_op_bound_function_try_to_lazy_instantiate_property */
#if JERRY_ESNEXT
/**
* Delete configurable properties of functions.
*/
void
ecma_op_function_delete_built_in_property (ecma_object_t *object_p, /**< object */
ecma_string_t *property_name_p) /**< property name */
{
ecma_extended_object_t *ext_func_p = (ecma_extended_object_t *) object_p;
if (ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_LENGTH))
{
JERRY_ASSERT (!ECMA_GET_FIRST_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp));
ECMA_SET_FIRST_BIT_TO_POINTER_TAG (ext_func_p->u.function.scope_cp);
return;
}
JERRY_ASSERT (ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_NAME));
JERRY_ASSERT (!ECMA_GET_SECOND_BIT_FROM_POINTER_TAG (ext_func_p->u.function.scope_cp));
ECMA_SET_SECOND_BIT_TO_POINTER_TAG (ext_func_p->u.function.scope_cp);
} /* ecma_op_function_delete_built_in_property */
/**
* Delete configurable properties of bound functions.
*/
void
ecma_op_bound_function_delete_built_in_property (ecma_object_t *object_p, /**< object */
ecma_string_t *property_name_p) /**< property name */
{
JERRY_UNUSED (property_name_p);
ecma_bound_function_t *bound_func_p = (ecma_bound_function_t *) object_p;
JERRY_ASSERT (ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_LENGTH));
JERRY_ASSERT (!ECMA_GET_FIRST_BIT_FROM_POINTER_TAG (bound_func_p->header.u.bound_function.target_function));
ECMA_SET_FIRST_BIT_TO_POINTER_TAG (bound_func_p->header.u.bound_function.target_function);
} /* ecma_op_bound_function_delete_built_in_property */
#endif /* JERRY_ESNEXT */
/**
* List names of a Function object's lazy instantiated properties,
* adding them to corresponding string collections
@@ -2058,7 +2097,10 @@ ecma_op_external_function_list_lazy_property_names (ecma_object_t *object_p, /**
#if !JERRY_ESNEXT
JERRY_UNUSED (object_p);
#else /* JERRY_ESNEXT */
if (!ecma_op_ordinary_object_has_own_property (object_p, ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE)))
/* TODO: implicit class constructors need rework, and this code should be updated afterwards. */
ecma_property_t *property_p = ecma_find_named_property (object_p, ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE));
if (property_p == NULL || (*property_p & ECMA_PROPERTY_FLAG_BUILT_IN))
#endif /* !JERRY_ESNEXT */
{
/* 'prototype' property is non-enumerable (ECMA-262 v5, 13.2.18) */