/** * [[GetProperty]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.2 * * @return pointer to a property - if it exists, * NULL (i.e. ecma-undefined) - otherwise. */ ecma_property_t* ecma_op_general_object_get_property (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p) /**< property name */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); // 1. ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2. if (prop_p != NULL) { return prop_p; } // 3. ecma_object_t *prototype_p = ecma_get_object_prototype (obj_p); // 4., 5. if (prototype_p != NULL) { return ecma_op_object_get_property (prototype_p, property_name_p); } else { return NULL; } } /* ecma_op_general_object_get_property */
/** * [[GetOwnProperty]] ecma Arguments object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 10.6 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_property_t * ecma_op_arguments_object_get_own_property (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p) /**< property name */ { // 1. ecma_property_t *desc_p = ecma_op_general_object_get_own_property (obj_p, property_name_p); // 2. if (desc_p == NULL) { return desc_p; } // 3. ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP); ecma_object_t *map_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_object_t, ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value); // 4. ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p); // 5. if (mapped_prop_p != NULL) { // a. ecma_value_t completion = ecma_arguments_get_mapped_arg_value (map_p, mapped_prop_p); ecma_named_data_property_assign_value (obj_p, desc_p, completion); ecma_free_value (completion); } // 6. return desc_p; } /* ecma_op_arguments_object_get_own_property */
/** * [[Get]] ecma Arguments object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 10.6 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_value_t ecma_op_arguments_object_get (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p) /**< property name */ { // 1. ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP); ecma_object_t *map_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_object_t, ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value); // 2. ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p); // 3. if (mapped_prop_p == NULL) { /* We don't check for 'caller' (item 3.b) here, because the 'caller' property is defined as non-configurable and it's get/set are set to [[ThrowTypeError]] object */ return ecma_op_general_object_get (obj_p, property_name_p); } else { // 4. return ecma_arguments_get_mapped_arg_value (map_p, mapped_prop_p); } } /* ecma_op_arguments_object_get */
/** * The Object object's 'isSealed' routine * * See also: * ECMA-262 v5, 15.2.3.11 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_object_is_sealed (ecma_value_t this_arg __attr_unused___, /**< 'this' argument */ ecma_value_t arg) /**< routine's argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // 1. if (!ecma_is_value_object (arg)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { ecma_object_t *obj_p = ecma_get_object_from_value (arg); bool is_sealed; // 3. if (ecma_get_object_extensible (obj_p)) { is_sealed = false; } else { /* the value can be updated in the loop below */ is_sealed = true; // 2. ecma_collection_header_t *props_p = ecma_op_object_get_property_names (obj_p, false, false, false); ecma_collection_iterator_t iter; ecma_collection_iterator_init (&iter, props_p); while (ecma_collection_iterator_next (&iter)) { ecma_string_t *property_name_p = ecma_get_string_from_value (*iter.current_value_p); // 2.a ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2.b if (ecma_is_property_configurable (property_p)) { is_sealed = false; break; } } ecma_free_values_collection (props_p, true); } // 4. ret_value = ecma_make_simple_completion_value (is_sealed ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE); } return ret_value; } /* ecma_builtin_object_object_is_sealed */
/** * The Object object's 'getOwnPropertyDescriptor' routine * * See also: * ECMA-262 v5, 15.2.3.3 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_object_get_own_property_descriptor (ecma_value_t this_arg __attr_unused___, /**< 'this' argument */ ecma_value_t arg1, /**< routine's first argument */ ecma_value_t arg2) /**< routine's second argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // 1. if (!ecma_is_value_object (arg1)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); return ret_value; } ecma_object_t *obj_p = ecma_get_object_from_value (arg1); // 2. ECMA_TRY_CATCH (name_str_value, ecma_op_to_string (arg2), ret_value); ecma_string_t *name_str_p = ecma_get_string_from_value (name_str_value); // 3. ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, name_str_p); if (prop_p != NULL) { ecma_property_descriptor_t prop_desc = ecma_get_property_descriptor_from_property (prop_p); // 4. ecma_object_t* desc_obj_p = ecma_op_from_property_descriptor (&prop_desc); ecma_free_property_descriptor (&prop_desc); ret_value = ecma_make_normal_completion_value (ecma_make_object_value (desc_obj_p)); } else { ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED); } ECMA_FINALIZE (name_str_value); return ret_value; } /* ecma_builtin_object_object_get_own_property_descriptor */
/** * The Object.prototype object's 'propertyIsEnumerable' routine * * See also: * ECMA-262 v5, 15.2.4.7 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_object_prototype_object_property_is_enumerable (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< routine's first argument */ { ecma_value_t return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 1. */ ECMA_TRY_CATCH (to_string_val, ecma_op_to_string (arg), return_value); /* 2. */ ECMA_TRY_CATCH (obj_val, ecma_op_to_object (this_arg), return_value); ecma_string_t *property_name_string_p = ecma_get_string_from_value (to_string_val); ecma_object_t *obj_p = ecma_get_object_from_value (obj_val); /* 3. */ ecma_property_t property = ecma_op_object_get_own_property (obj_p, property_name_string_p, NULL, ECMA_PROPERTY_GET_NO_OPTIONS); /* 4. */ if (property != ECMA_PROPERTY_TYPE_NOT_FOUND) { bool is_enumerable = ecma_is_property_enumerable (property); return_value = ecma_make_boolean_value (is_enumerable); } else { return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE); } ECMA_FINALIZE (obj_val); ECMA_FINALIZE (to_string_val); return return_value; } /* ecma_builtin_object_prototype_object_property_is_enumerable */
/** * [[Delete]] ecma Arguments object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 10.6 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_value_t ecma_op_arguments_object_delete (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ bool is_throw) /**< flag that controls failure handling */ { // 1. ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP); ecma_object_t *map_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t, map_prop_p->u.internal_property.value); // 2. ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p); // 3. ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_TRY_CATCH (delete_in_args_ret, ecma_op_general_object_delete (obj_p, property_name_p, is_throw), ret_value); if (ecma_is_value_true (delete_in_args_ret)) { if (mapped_prop_p != NULL) { ecma_value_t delete_in_map_completion = ecma_op_object_delete (map_p, property_name_p, false); JERRY_ASSERT (ecma_is_value_true (delete_in_map_completion)); } ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } else { JERRY_ASSERT (ecma_is_value_boolean (delete_in_args_ret)); ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE); } ECMA_FINALIZE (delete_in_args_ret); return ret_value; } /* ecma_op_arguments_object_delete */
/** * The Object.prototype object's 'propertyIsEnumerable' routine * * See also: * ECMA-262 v5, 15.2.4.7 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_prototype_object_property_is_enumerable (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< routine's first argument */ { ecma_completion_value_t return_value = ecma_make_empty_completion_value (); /* 1. */ ECMA_TRY_CATCH (to_string_val, ecma_op_to_string (arg), return_value); /* 2. */ ECMA_TRY_CATCH (obj_val, ecma_op_to_object (this_arg), return_value); ecma_string_t *property_name_string_p = ecma_get_string_from_value (to_string_val); ecma_object_t *obj_p = ecma_get_object_from_value (obj_val); /* 3. */ ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_string_p); /* 4. */ if (property_p != NULL) { bool is_enumerable = ecma_is_property_enumerable (property_p); return_value = ecma_make_simple_completion_value (is_enumerable ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE); } else { return_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE); } ECMA_FINALIZE (obj_val); ECMA_FINALIZE (to_string_val); return return_value; } /* ecma_builtin_object_prototype_object_property_is_enumerable */
/** * [[Delete]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.7 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_general_object_delete (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); // 1. ecma_property_t *desc_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2. if (desc_p == NULL) { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } // 3. if (ecma_is_property_configurable (desc_p)) { // a. ecma_delete_property (obj_p, desc_p); // b. return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } else if (is_throw) { // 4. return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { // 5. return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE); } JERRY_UNREACHABLE (); } /* ecma_op_general_object_delete */
/** * The Object.prototype object's 'hasOwnProperty' routine * * See also: * ECMA-262 v5, 15.2.4.5 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_object_prototype_object_has_own_property (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< first argument */ { ecma_value_t return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 1. */ ECMA_TRY_CATCH (to_string_val, ecma_op_to_string (arg), return_value); /* 2. */ ECMA_TRY_CATCH (obj_val, ecma_op_to_object (this_arg), return_value); ecma_string_t *property_name_string_p = ecma_get_string_from_value (to_string_val); ecma_object_t *obj_p = ecma_get_object_from_value (obj_val); /* 3. */ ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_string_p); if (property_p != NULL) { return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } else { return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE); } ECMA_FINALIZE (obj_val); ECMA_FINALIZE (to_string_val); return return_value; } /* ecma_builtin_object_prototype_object_has_own_property */
/** * The Object object's 'freeze' routine * * See also: * ECMA-262 v5, 15.2.3.9 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_object_freeze (ecma_value_t this_arg __attr_unused___, /**< 'this' argument */ ecma_value_t arg) /**< routine's argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // 1. if (!ecma_is_value_object (arg)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { // 2. ecma_object_t *obj_p = ecma_get_object_from_value (arg); ecma_collection_header_t *props_p = ecma_op_object_get_property_names (obj_p, false, false, false); ecma_collection_iterator_t iter; ecma_collection_iterator_init (&iter, props_p); while (ecma_collection_iterator_next (&iter) && ecma_is_completion_value_empty (ret_value)) { ecma_string_t *property_name_p = ecma_get_string_from_value (*iter.current_value_p); ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2.a ecma_property_descriptor_t prop_desc = ecma_get_property_descriptor_from_property (property_p); // 2.b if (property_p->type == ECMA_PROPERTY_NAMEDDATA && ecma_is_property_writable (property_p)) { prop_desc.is_writable = false; } // 2.c if (ecma_is_property_configurable (property_p)) { prop_desc.is_configurable = false; } // 2.d ECMA_TRY_CATCH (define_own_prop_ret, ecma_op_object_define_own_property (obj_p, property_name_p, &prop_desc, true), ret_value); ECMA_FINALIZE (define_own_prop_ret); ecma_free_property_descriptor (&prop_desc); } ecma_free_values_collection (props_p, true); if (ecma_is_completion_value_empty (ret_value)) { // 3. ecma_set_object_extensible (obj_p, false); // 4. ret_value = ecma_make_normal_completion_value (ecma_copy_value (arg, true)); } } return ret_value; } /* ecma_builtin_object_object_freeze */
/** * [[DefineOwnProperty]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.9 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_general_object_define_own_property (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ const ecma_property_descriptor_t *property_desc_p, /**< property * descriptor */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); const bool is_property_desc_generic_descriptor = (!property_desc_p->is_value_defined && !property_desc_p->is_writable_defined && !property_desc_p->is_get_defined && !property_desc_p->is_set_defined); const bool is_property_desc_data_descriptor = (property_desc_p->is_value_defined || property_desc_p->is_writable_defined); const bool is_property_desc_accessor_descriptor = (property_desc_p->is_get_defined || property_desc_p->is_set_defined); // 1. ecma_property_t *current_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2. bool extensible = ecma_get_object_extensible (obj_p); if (current_p == NULL) { // 3. if (!extensible) { return ecma_reject (is_throw); } // 4. // a. if (is_property_desc_generic_descriptor || is_property_desc_data_descriptor) { ecma_property_t *new_prop_p = ecma_create_named_data_property (obj_p, property_name_p, property_desc_p->is_writable, property_desc_p->is_enumerable, property_desc_p->is_configurable); ecma_named_data_property_assign_value (obj_p, new_prop_p, property_desc_p->value); } else { // b. JERRY_ASSERT (is_property_desc_accessor_descriptor); ecma_create_named_accessor_property (obj_p, property_name_p, property_desc_p->get_p, property_desc_p->set_p, property_desc_p->is_enumerable, property_desc_p->is_configurable); } return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } // 5. if (is_property_desc_generic_descriptor && !property_desc_p->is_enumerable_defined && !property_desc_p->is_configurable_defined) { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } // 6. const bool is_current_data_descriptor = (current_p->type == ECMA_PROPERTY_NAMEDDATA); const bool is_current_accessor_descriptor = (current_p->type == ECMA_PROPERTY_NAMEDACCESSOR); JERRY_ASSERT (is_current_data_descriptor || is_current_accessor_descriptor); bool is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = true; if (property_desc_p->is_value_defined) { if (!is_current_data_descriptor || !ecma_op_same_value (property_desc_p->value, ecma_get_named_data_property_value (current_p))) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (property_desc_p->is_writable_defined) { if (!is_current_data_descriptor || property_desc_p->is_writable != ecma_is_property_writable (current_p)) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (property_desc_p->is_get_defined) { if (!is_current_accessor_descriptor || property_desc_p->get_p != ecma_get_named_accessor_property_getter (current_p)) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (property_desc_p->is_set_defined) { if (!is_current_accessor_descriptor || property_desc_p->set_p != ecma_get_named_accessor_property_setter (current_p)) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (property_desc_p->is_enumerable_defined) { if (property_desc_p->is_enumerable != ecma_is_property_enumerable (current_p)) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (property_desc_p->is_configurable_defined) { if (property_desc_p->is_configurable != ecma_is_property_configurable (current_p)) { is_every_field_in_desc_also_occurs_in_current_desc_with_same_value = false; } } if (is_every_field_in_desc_also_occurs_in_current_desc_with_same_value) { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } // 7. if (!ecma_is_property_configurable (current_p)) { if (property_desc_p->is_configurable || (property_desc_p->is_enumerable_defined && property_desc_p->is_enumerable != ecma_is_property_enumerable (current_p))) { // a., b. return ecma_reject (is_throw); } } // 8. if (is_property_desc_generic_descriptor) { // no action required } else if (is_property_desc_data_descriptor != is_current_data_descriptor) { // 9. if (!ecma_is_property_configurable (current_p)) { // a. return ecma_reject (is_throw); } bool was_enumerable = ecma_is_property_enumerable (current_p); bool was_configurable = ecma_is_property_configurable (current_p); ecma_delete_property (obj_p, current_p); if (is_current_data_descriptor) { // b. current_p = ecma_create_named_accessor_property (obj_p, property_name_p, NULL, NULL, was_enumerable, was_configurable); } else { // c. current_p = ecma_create_named_data_property (obj_p, property_name_p, false, was_enumerable, was_configurable); } } else if (is_property_desc_data_descriptor && is_current_data_descriptor) { // 10. if (!ecma_is_property_configurable (current_p)) { // a. if (!ecma_is_property_writable (current_p)) { // i. if (property_desc_p->is_writable) { return ecma_reject (is_throw); } // ii. if (property_desc_p->is_value_defined && !ecma_op_same_value (property_desc_p->value, ecma_get_named_data_property_value (current_p))) { return ecma_reject (is_throw); } } } } else { JERRY_ASSERT (is_property_desc_accessor_descriptor && is_current_accessor_descriptor); // 11. if (!ecma_is_property_configurable (current_p)) { // a. if ((property_desc_p->is_get_defined && property_desc_p->get_p != ecma_get_named_accessor_property_getter (current_p)) || (property_desc_p->is_set_defined && property_desc_p->set_p != ecma_get_named_accessor_property_setter (current_p))) { // i., ii. return ecma_reject (is_throw); } } } // 12. if (property_desc_p->is_value_defined) { JERRY_ASSERT (current_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_named_data_property_assign_value (obj_p, current_p, property_desc_p->value); } if (property_desc_p->is_writable_defined) { JERRY_ASSERT (current_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_set_property_writable_attr (current_p, property_desc_p->is_writable); } if (property_desc_p->is_get_defined) { JERRY_ASSERT (current_p->type == ECMA_PROPERTY_NAMEDACCESSOR); ecma_set_named_accessor_property_getter (obj_p, current_p, property_desc_p->get_p); } if (property_desc_p->is_set_defined) { JERRY_ASSERT (current_p->type == ECMA_PROPERTY_NAMEDACCESSOR); ecma_set_named_accessor_property_setter (obj_p, current_p, property_desc_p->set_p); } if (property_desc_p->is_enumerable_defined) { ecma_set_property_enumerable_attr (current_p, property_desc_p->is_enumerable); } if (property_desc_p->is_configurable_defined) { ecma_set_property_configurable_attr (current_p, property_desc_p->is_configurable); } return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } /* ecma_op_general_object_define_own_property */
/** * [[CanPut]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.4 * * @return true - if [[Put]] with the given property name can be performed; * false - otherwise. */ bool ecma_op_general_object_can_put (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p) /**< property name */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); // 1. ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 2. if (prop_p != NULL) { // a. if (prop_p->type == ECMA_PROPERTY_NAMEDACCESSOR) { ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (prop_p); // i. if (setter_p == NULL) { return false; } // ii. return true; } else { // b. JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); return ecma_is_property_writable (prop_p); } } // 3. ecma_object_t *proto_p = ecma_get_object_prototype (obj_p); // 4. if (proto_p == NULL) { return ecma_get_object_extensible (obj_p); } // 5. ecma_property_t *inherited_p = ecma_op_object_get_property (proto_p, property_name_p); // 6. if (inherited_p == NULL) { return ecma_get_object_extensible (obj_p); } // 7. if (inherited_p->type == ECMA_PROPERTY_NAMEDACCESSOR) { ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (inherited_p); // a. if (setter_p == NULL) { return false; } // b. return true; } else { // 8. JERRY_ASSERT (inherited_p->type == ECMA_PROPERTY_NAMEDDATA); // a. if (!ecma_get_object_extensible (obj_p)) { return false; } else { // b. return ecma_is_property_writable (inherited_p); } } JERRY_UNREACHABLE (); } /* ecma_op_general_object_can_put */
/** * [[Put]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.5 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_general_object_put (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ ecma_value_t value, /**< ecma-value */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); // 1. if (!ecma_op_object_can_put (obj_p, property_name_p)) { if (is_throw) { // a. return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { // b. return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE); } } // 2. ecma_property_t *own_desc_p = ecma_op_object_get_own_property (obj_p, property_name_p); // 3. if (own_desc_p != NULL && own_desc_p->type == ECMA_PROPERTY_NAMEDDATA) { // a. ecma_property_descriptor_t value_desc = ecma_make_empty_property_descriptor (); { value_desc.is_value_defined = true; value_desc.value = value; } // b., c. return ecma_op_object_define_own_property (obj_p, property_name_p, &value_desc, is_throw); } // 4. ecma_property_t *desc_p = ecma_op_object_get_property (obj_p, property_name_p); // 5. if (desc_p != NULL && desc_p->type == ECMA_PROPERTY_NAMEDACCESSOR) { // a. ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (desc_p); JERRY_ASSERT (setter_p != NULL); ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); ECMA_TRY_CATCH (call_ret, ecma_op_function_call_array_args (setter_p, ecma_make_object_value (obj_p), &value, 1), ret_value); ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); ECMA_FINALIZE (call_ret); return ret_value; } else { // 6.a., 6.b. return ecma_builtin_helper_def_prop (obj_p, property_name_p, value, true, /* Writable */ true, /* Enumerable */ true, /* Configurable */ is_throw); /* Failure handling */ } JERRY_UNREACHABLE (); } /* ecma_op_general_object_put */
/** * Abstract operation 'JO' defined in 15.12.3 * * See also: * ECMA-262 v5, 15.12.3 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_json_object (ecma_object_t *obj_p, /**< the object*/ ecma_json_stringify_context_t *context_p) /**< context*/ { ecma_value_t obj_value = ecma_make_object_value (obj_p); /* 1. */ if (ecma_has_object_value_in_collection (context_p->occurence_stack_p, obj_value)) { return ecma_raise_type_error (""); } ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 2. */ ecma_append_to_values_collection (context_p->occurence_stack_p, obj_value, true); /* 3. */ ecma_string_t *stepback_p = context_p->indent_str_p; /* 4. */ context_p->indent_str_p = ecma_concat_ecma_strings (context_p->indent_str_p, context_p->gap_str_p); ecma_collection_header_t *property_keys_p; /* 5. */ if (context_p->property_list_p->unit_number > 0) { property_keys_p = context_p->property_list_p; } /* 6. */ else { property_keys_p = ecma_new_values_collection (NULL, 0, true); ecma_collection_header_t *props_p = ecma_op_object_get_property_names (obj_p, false, true, false); ecma_collection_iterator_t iter; ecma_collection_iterator_init (&iter, props_p); while (ecma_collection_iterator_next (&iter)) { ecma_string_t *property_name_p = ecma_get_string_from_value (*iter.current_value_p); ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_p); JERRY_ASSERT (ecma_is_property_enumerable (property_p)); if (property_p->type == ECMA_PROPERTY_NAMEDDATA) { ecma_append_to_values_collection (property_keys_p, *iter.current_value_p, true); } } ecma_free_values_collection (props_p, true); } /* 7. */ ecma_collection_header_t *partial_p = ecma_new_values_collection (NULL, 0, true); /* 8. */ ecma_collection_iterator_t iterator; ecma_collection_iterator_init (&iterator, property_keys_p); while (ecma_collection_iterator_next (&iterator) && ecma_is_value_empty (ret_value)) { ecma_value_t value = *iterator.current_value_p; ecma_string_t *key_p = ecma_get_string_from_value (value); /* 8.a */ ECMA_TRY_CATCH (str_val, ecma_builtin_json_str (key_p, obj_p, context_p), ret_value); /* 8.b */ if (!ecma_is_value_undefined (str_val)) { ecma_string_t *colon_p = ecma_get_magic_string (LIT_MAGIC_STRING_COLON_CHAR); ecma_string_t *value_str_p = ecma_get_string_from_value (str_val); ecma_string_t *tmp_str_p; /* 8.b.i */ ecma_value_t str_comp_val = ecma_builtin_json_quote (key_p); JERRY_ASSERT (!ecma_is_value_error (str_comp_val)); ecma_string_t *member_str_p = ecma_get_string_from_value (str_comp_val); /* 8.b.ii */ tmp_str_p = ecma_concat_ecma_strings (member_str_p, colon_p); ecma_free_value (str_comp_val); ecma_deref_ecma_string (colon_p); member_str_p = tmp_str_p; /* 8.b.iii */ bool is_gap_empty = (ecma_string_get_length (context_p->gap_str_p) == 0); if (!is_gap_empty) { ecma_string_t *space_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_SPACE_CHAR); tmp_str_p = ecma_concat_ecma_strings (member_str_p, space_str_p); ecma_deref_ecma_string (member_str_p); ecma_deref_ecma_string (space_str_p); member_str_p = tmp_str_p; } /* 8.b.iv */ tmp_str_p = ecma_concat_ecma_strings (member_str_p, value_str_p); ecma_deref_ecma_string (member_str_p); member_str_p = tmp_str_p; /* 8.b.v */ ecma_value_t member_value = ecma_make_string_value (member_str_p); ecma_append_to_values_collection (partial_p, member_value, true); ecma_deref_ecma_string (member_str_p); } ECMA_FINALIZE (str_val); } if (context_p->property_list_p->unit_number == 0) { ecma_free_values_collection (property_keys_p, true); } if (!ecma_is_value_empty (ret_value)) { ecma_free_values_collection (partial_p, true); ecma_deref_ecma_string (stepback_p); return ret_value; } /* 9. */ if (partial_p->unit_number == 0) { ecma_string_t *left_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LEFT_BRACE_CHAR); ecma_string_t *right_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_RIGHT_BRACE_CHAR); ecma_string_t *final_str_p = ecma_concat_ecma_strings (left_brace_str_p, right_brace_str_p); ret_value = ecma_make_string_value (final_str_p); ecma_deref_ecma_string (left_brace_str_p); ecma_deref_ecma_string (right_brace_str_p); } /* 10. */ else { bool is_gap_empty = (ecma_string_get_length (context_p->gap_str_p) == 0); /* 10.a */ if (is_gap_empty) { ecma_string_t *left_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LEFT_BRACE_CHAR); ecma_string_t *right_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_RIGHT_BRACE_CHAR); ret_value = ecma_builtin_helper_json_create_non_formatted_json (left_brace_str_p, right_brace_str_p, partial_p); ecma_deref_ecma_string (left_brace_str_p); ecma_deref_ecma_string (right_brace_str_p); } /* 10.b */ else { ecma_string_t *left_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LEFT_BRACE_CHAR); ecma_string_t *right_brace_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_RIGHT_BRACE_CHAR); ret_value = ecma_builtin_helper_json_create_formatted_json (left_brace_str_p, right_brace_str_p, stepback_p, partial_p, context_p); ecma_deref_ecma_string (left_brace_str_p); ecma_deref_ecma_string (right_brace_str_p); } } ecma_free_values_collection (partial_p, true); /* 11. */ ecma_remove_last_value_from_values_collection (context_p->occurence_stack_p); /* 12. */ ecma_deref_ecma_string (context_p->indent_str_p); context_p->indent_str_p = stepback_p; /* 13. */ return ret_value; } /* ecma_builtin_json_object */
/** * [[DefineOwnProperty]] ecma array object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 15.4.5.1 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_array_object_define_own_property (ecma_object_t *obj_p, /**< the array object */ ecma_string_t *property_name_p, /**< property name */ const ecma_property_descriptor_t* property_desc_p, /**< property descriptor */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (ecma_get_object_type (obj_p) == ECMA_OBJECT_TYPE_ARRAY); // 1. ecma_string_t* magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_property_t *len_prop_p = ecma_op_object_get_own_property (obj_p, magic_string_length_p); JERRY_ASSERT (len_prop_p != NULL && len_prop_p->type == ECMA_PROPERTY_NAMEDDATA); // 2. ecma_value_t old_len_value = ecma_get_named_data_property_value (len_prop_p); ecma_number_t *num_p = ecma_get_number_from_value (old_len_value); uint32_t old_len_uint32 = ecma_number_to_uint32 (*num_p); // 3. bool is_property_name_equal_length = ecma_compare_ecma_strings (property_name_p, magic_string_length_p); ecma_deref_ecma_string (magic_string_length_p); if (is_property_name_equal_length) { // a. if (!property_desc_p->is_value_defined) { // i. return ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, is_throw); } ecma_number_t new_len_num; // c. ecma_completion_value_t completion = ecma_op_to_number (property_desc_p->value); if (ecma_is_completion_value_throw (completion)) { return completion; } JERRY_ASSERT (ecma_is_completion_value_normal (completion) && ecma_is_value_number (ecma_get_completion_value_value (completion))); new_len_num = *ecma_get_number_from_completion_value (completion); ecma_free_completion_value (completion); uint32_t new_len_uint32 = ecma_number_to_uint32 (new_len_num); // d. if (ecma_uint32_to_number (new_len_uint32) != new_len_num) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_RANGE)); } else { // b., e. ecma_number_t *new_len_num_p = ecma_alloc_number (); *new_len_num_p = new_len_num; ecma_property_descriptor_t new_len_property_desc = *property_desc_p; new_len_property_desc.value = ecma_make_number_value (new_len_num_p); ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // f. if (new_len_uint32 >= old_len_uint32) { // i. magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ret_value = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, is_throw); ecma_deref_ecma_string (magic_string_length_p); } else { // g. if (!ecma_is_property_writable (len_prop_p)) { ret_value = ecma_reject (is_throw); } else { // h. bool new_writable; if (!new_len_property_desc.is_writable_defined || new_len_property_desc.is_writable) { new_writable = true; } else { // ii. new_writable = false; // iii. new_len_property_desc.is_writable_defined = true; new_len_property_desc.is_writable = true; } // j. magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_completion_value_t succeeded = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, is_throw); ecma_deref_ecma_string (magic_string_length_p); /* Handling normal false and throw values */ if (!ecma_is_completion_value_normal_true (succeeded)) { JERRY_ASSERT (ecma_is_completion_value_normal_false (succeeded) || ecma_is_completion_value_throw (succeeded)); // k. ret_value = succeeded; } else { // l JERRY_ASSERT (new_len_uint32 < old_len_uint32); bool reduce_succeeded = true; while (new_len_uint32 < old_len_uint32) { // i old_len_uint32--; // ii ecma_string_t *old_length_string_p = ecma_new_ecma_string_from_uint32 (old_len_uint32); ecma_completion_value_t delete_succeeded = ecma_op_object_delete (obj_p, old_length_string_p, false); ecma_deref_ecma_string (old_length_string_p); // iii if (ecma_is_completion_value_normal_false (delete_succeeded)) { JERRY_ASSERT (ecma_is_value_number (new_len_property_desc.value)); ecma_number_t *new_len_num_p = ecma_get_number_from_value (new_len_property_desc.value); // 1. *new_len_num_p = ecma_uint32_to_number (old_len_uint32 + 1); // 2. if (!new_writable) { new_len_property_desc.is_writable_defined = true; new_len_property_desc.is_writable = false; } // 3. ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_completion_value_t completion = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, false); ecma_deref_ecma_string (magic_string_length_p); JERRY_ASSERT (ecma_is_completion_value_normal_true (completion) || ecma_is_completion_value_normal_false (completion)); reduce_succeeded = false; break; } } if (!reduce_succeeded) { ret_value = ecma_reject (is_throw); } else { // m. if (!new_writable) { ecma_property_descriptor_t prop_desc_not_writable = ecma_make_empty_property_descriptor (); prop_desc_not_writable.is_writable_defined = true; prop_desc_not_writable.is_writable = false; ecma_completion_value_t completion_set_not_writable; magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); completion_set_not_writable = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &prop_desc_not_writable, false); ecma_deref_ecma_string (magic_string_length_p); JERRY_ASSERT (ecma_is_completion_value_normal_true (completion_set_not_writable)); } ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } } } } ecma_dealloc_number (new_len_num_p); return ret_value; } JERRY_UNREACHABLE (); } else { // 4.a. uint32_t index; if (!ecma_string_get_array_index (property_name_p, &index)) { // 5. return ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, is_throw); } // 4. // b. if (index >= old_len_uint32 && !ecma_is_property_writable (len_prop_p)) { return ecma_reject (is_throw); } // c. ecma_completion_value_t succeeded = ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, false); // d. JERRY_ASSERT (ecma_is_completion_value_normal_true (succeeded) || ecma_is_completion_value_normal_false (succeeded)); if (ecma_is_completion_value_normal_false (succeeded)) { return ecma_reject (is_throw); } // e. if (index >= old_len_uint32) { // i., ii. ecma_number_t *num_p = ecma_alloc_number (); *num_p = ecma_number_add (ecma_uint32_to_number (index), ECMA_NUMBER_ONE); ecma_named_data_property_assign_value (obj_p, len_prop_p, ecma_make_number_value (num_p)); ecma_dealloc_number (num_p); } // f. return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } JERRY_UNREACHABLE (); } /* ecma_op_array_object_define_own_property */
/** * The Object object's 'isFrozen' routine * * See also: * ECMA-262 v5, 15.2.3.12 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_object_is_frozen (ecma_value_t this_arg __attr_unused___, /**< 'this' argument */ ecma_value_t arg) /**< routine's argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // 1. if (!ecma_is_value_object (arg)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { ecma_object_t *obj_p = ecma_get_object_from_value (arg); bool is_frozen; // 3. if (ecma_get_object_extensible (obj_p)) { is_frozen = false; } else { is_frozen = true; // 2. ecma_collection_header_t *props_p = ecma_op_object_get_property_names (obj_p, false, false, false); ecma_collection_iterator_t iter; ecma_collection_iterator_init (&iter, props_p); while (ecma_collection_iterator_next (&iter)) { ecma_string_t *property_name_p = ecma_get_string_from_value (*iter.current_value_p); // 2.a ecma_property_t *property_p = ecma_op_object_get_own_property (obj_p, property_name_p); JERRY_ASSERT (property_p->type == ECMA_PROPERTY_NAMEDDATA || property_p->type == ECMA_PROPERTY_NAMEDACCESSOR); // 2.b if (property_p->type == ECMA_PROPERTY_NAMEDDATA && ecma_is_property_writable (property_p)) { is_frozen = false; break; } // 2.c if (ecma_is_property_configurable (property_p)) { is_frozen = false; break; } } ecma_free_values_collection (props_p, true); } // 4. ret_value = ecma_make_simple_completion_value (is_frozen ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE); } return ret_value; } /* ecma_builtin_object_object_is_frozen */
/** * [[DefineOwnProperty]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.9 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_value_t ecma_op_general_object_define_own_property (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ const ecma_property_descriptor_t *property_desc_p, /**< property * descriptor */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); ecma_property_types_t property_desc_type = ECMA_PROPERTY_TYPE_GENERIC; if (property_desc_p->is_value_defined || property_desc_p->is_writable_defined) { /* A property descriptor cannot be both named data and named accessor. */ JERRY_ASSERT (!property_desc_p->is_get_defined && !property_desc_p->is_set_defined); property_desc_type = ECMA_PROPERTY_TYPE_NAMEDDATA; } else if (property_desc_p->is_get_defined || property_desc_p->is_set_defined) { property_desc_type = ECMA_PROPERTY_TYPE_NAMEDACCESSOR; } /* These three asserts ensures that a new property is created with the appropriate default flags. * E.g. if is_configurable_defined is false, the newly created property must be non-configurable. */ JERRY_ASSERT (property_desc_p->is_configurable_defined || !property_desc_p->is_configurable); JERRY_ASSERT (property_desc_p->is_enumerable_defined || !property_desc_p->is_enumerable); JERRY_ASSERT (property_desc_p->is_writable_defined || !property_desc_p->is_writable); // 1. ecma_property_t *current_p = ecma_op_object_get_own_property (obj_p, property_name_p); if (current_p == NULL) { // 3. if (!ecma_get_object_extensible (obj_p)) { // 2. return ecma_reject (is_throw); } // 4. if (property_desc_type != ECMA_PROPERTY_TYPE_NAMEDACCESSOR) { // a. JERRY_ASSERT (property_desc_type == ECMA_PROPERTY_TYPE_GENERIC || property_desc_type == ECMA_PROPERTY_TYPE_NAMEDDATA); ecma_property_t *new_prop_p = ecma_create_named_data_property (obj_p, property_name_p, property_desc_p->is_writable, property_desc_p->is_enumerable, property_desc_p->is_configurable); JERRY_ASSERT (property_desc_p->is_value_defined || ecma_is_value_undefined (property_desc_p->value)); ecma_named_data_property_assign_value (obj_p, new_prop_p, property_desc_p->value); } else { // b. ecma_create_named_accessor_property (obj_p, property_name_p, property_desc_p->get_p, property_desc_p->set_p, property_desc_p->is_enumerable, property_desc_p->is_configurable); } return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } // 6. ecma_property_types_t current_property_type = ECMA_PROPERTY_GET_TYPE (current_p); const bool is_current_configurable = ecma_is_property_configurable (current_p); JERRY_ASSERT (current_property_type == ECMA_PROPERTY_TYPE_NAMEDDATA || current_property_type == ECMA_PROPERTY_TYPE_NAMEDACCESSOR); // 7. a., b. if (!is_current_configurable && (property_desc_p->is_configurable || (property_desc_p->is_enumerable_defined && (property_desc_p->is_enumerable != ecma_is_property_enumerable (current_p))))) { return ecma_reject (is_throw); } // 8. if (property_desc_type == ECMA_PROPERTY_TYPE_GENERIC) { /* No action required. */ } else if (likely (property_desc_type == current_property_type)) { /* If property is configurable, there is no need for checks. */ if (unlikely (!is_current_configurable)) { if (property_desc_type == ECMA_PROPERTY_TYPE_NAMEDDATA) { // 10. a. i. & ii. if (!ecma_is_property_writable (current_p) && (property_desc_p->is_writable || (property_desc_p->is_value_defined && !ecma_op_same_value (property_desc_p->value, ecma_get_named_data_property_value (current_p))))) { return ecma_reject (is_throw); } } else { // 11. // a. if ((property_desc_p->is_get_defined && property_desc_p->get_p != ecma_get_named_accessor_property_getter (current_p)) || (property_desc_p->is_set_defined && property_desc_p->set_p != ecma_get_named_accessor_property_setter (current_p))) { // i., ii. return ecma_reject (is_throw); } } } } else { // 9. if (!is_current_configurable) { // a. return ecma_reject (is_throw); } /* The following implementation can be optimized by directly overwriting * the fields of current_p if this code path is performance critical. */ bool was_enumerable = ecma_is_property_enumerable (current_p); ecma_delete_property (obj_p, current_p); if (property_desc_type == ECMA_PROPERTY_TYPE_NAMEDACCESSOR) { // b. current_p = ecma_create_named_accessor_property (obj_p, property_name_p, NULL, NULL, was_enumerable, true); } else { // c. current_p = ecma_create_named_data_property (obj_p, property_name_p, false, was_enumerable, true); } } // 12. if (property_desc_type == ECMA_PROPERTY_TYPE_NAMEDDATA) { JERRY_ASSERT (ECMA_PROPERTY_GET_TYPE (current_p) == ECMA_PROPERTY_TYPE_NAMEDDATA); if (property_desc_p->is_value_defined) { ecma_named_data_property_assign_value (obj_p, current_p, property_desc_p->value); } if (property_desc_p->is_writable_defined) { ecma_set_property_writable_attr (current_p, property_desc_p->is_writable); } } else if (property_desc_type == ECMA_PROPERTY_TYPE_NAMEDACCESSOR) { JERRY_ASSERT (ECMA_PROPERTY_GET_TYPE (current_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR); if (property_desc_p->is_get_defined) { ecma_set_named_accessor_property_getter (obj_p, current_p, property_desc_p->get_p); } if (property_desc_p->is_set_defined) { ecma_set_named_accessor_property_setter (obj_p, current_p, property_desc_p->set_p); } } if (property_desc_p->is_enumerable_defined) { ecma_set_property_enumerable_attr (current_p, property_desc_p->is_enumerable); } if (property_desc_p->is_configurable_defined) { ecma_set_property_configurable_attr (current_p, property_desc_p->is_configurable); } return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } /* ecma_op_general_object_define_own_property */
/** * PutValue operation part (object base). * * See also: ECMA-262 v5, 8.7.2, section 4 * * @return ecma value * Returned value must be freed with ecma_free_value. */ ecma_value_t ecma_op_put_value_object_base (ecma_reference_t ref, /**< ECMA-reference */ ecma_value_t value) /**< ECMA-value */ { const ecma_value_t base = ref.base; const bool is_unresolvable_reference = ecma_is_value_undefined (base); const bool has_primitive_base = (ecma_is_value_boolean (base) || ecma_is_value_number (base) || ecma_is_value_string (base)); const bool has_object_base = (ecma_is_value_object (base) && !(ecma_is_lexical_environment (ecma_get_object_from_value (base)))); const bool is_property_reference = has_primitive_base || has_object_base; JERRY_ASSERT (!is_unresolvable_reference); JERRY_ASSERT (is_property_reference); // 4.a if (!has_primitive_base) { // 4.b case 1 ecma_object_t *obj_p = ecma_get_object_from_value (base); JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_TRY_CATCH (put_ret_value, ecma_op_object_put (obj_p, ECMA_GET_NON_NULL_POINTER (ecma_string_t, ref.referenced_name_cp), value, ref.is_strict), ret_value); ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_FINALIZE (put_ret_value); return ret_value; } else { // 4.b case 2 ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); // sub_1. ECMA_TRY_CATCH (obj_base, ecma_op_to_object (base), ret_value); ecma_object_t *obj_p = ecma_get_object_from_value (obj_base); JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); ecma_string_t *referenced_name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t, ref.referenced_name_cp); // sub_2. if (!ecma_op_object_can_put (obj_p, referenced_name_p)) { ret_value = ecma_reject_put (ref.is_strict); } else { // sub_3. ecma_property_t *own_prop_p = ecma_op_object_get_own_property (obj_p, referenced_name_p); // sub_5. ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, referenced_name_p); // sub_4., sub_7 if ((own_prop_p != NULL && (own_prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDDATA)) || (prop_p == NULL) || !(prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR)) { ret_value = ecma_reject_put (ref.is_strict); } else { // sub_6. JERRY_ASSERT (prop_p != NULL && (prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR)); ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (prop_p); JERRY_ASSERT (setter_p != NULL); ECMA_TRY_CATCH (call_ret, ecma_op_function_call (setter_p, base, &value, 1), ret_value); ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_FINALIZE (call_ret); } } ECMA_FINALIZE (obj_base); return ret_value; } } /* ecma_op_put_value_object_base */
/** * [[DefineOwnProperty]] ecma Arguments object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 10.6 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_value_t ecma_op_arguments_object_define_own_property (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ const ecma_property_descriptor_t *property_desc_p, /**< property * descriptor */ bool is_throw) /**< flag that controls failure handling */ { // 1. ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP); ecma_object_t *map_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_object_t, ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value); // 2. ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p); // 3. ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_TRY_CATCH (defined, ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, is_throw), ret_value); // 5. if (mapped_prop_p != NULL) { // a. if (property_desc_p->is_get_defined || property_desc_p->is_set_defined) { ecma_value_t completion = ecma_op_object_delete (map_p, property_name_p, false); JERRY_ASSERT (ecma_is_value_true (completion)); // 6. ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } else { // b. ecma_value_t completion = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); // i. if (property_desc_p->is_value_defined) { /* emulating execution of function described by MakeArgSetter */ ecma_property_t *scope_prop_p = ecma_get_internal_property (map_p, ECMA_INTERNAL_PROPERTY_SCOPE); ecma_object_t *lex_env_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_object_t, ECMA_PROPERTY_VALUE_PTR (scope_prop_p)->value); ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p); ecma_value_t arg_name_prop_value = ecma_get_named_data_property_value (mapped_prop_p); ecma_string_t *arg_name_p = ecma_get_string_from_value (arg_name_prop_value); completion = ecma_op_set_mutable_binding (lex_env_p, arg_name_p, property_desc_p->value, true); JERRY_ASSERT (ecma_is_value_empty (completion)); } // ii. if (property_desc_p->is_writable_defined && !property_desc_p->is_writable) { completion = ecma_op_object_delete (map_p, property_name_p, false); JERRY_ASSERT (ecma_is_value_true (completion)); } // 6. ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } } else { ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } ECMA_FINALIZE (defined); return ret_value; } /* ecma_op_arguments_object_define_own_property */
/** * List names of a built-in object's lazy instantiated properties * * See also: * ecma_builtin_try_to_instantiate_property */ void ecma_builtin_list_lazy_property_names (ecma_object_t *object_p, /**< a built-in object */ bool separate_enumerable, /**< true - list enumerable properties into * main collection, and non-enumerable * to collection of 'skipped non-enumerable' * properties, * false - list all properties into main collection. */ ecma_collection_header_t *main_collection_p, /**< 'main' collection */ ecma_collection_header_t *non_enum_collection_p) /**< skipped 'non-enumerable' * collection */ { JERRY_ASSERT (ecma_get_object_is_builtin (object_p)); ecma_extended_object_t *ext_obj_p = (ecma_extended_object_t *) object_p; if (ecma_get_object_type (object_p) == ECMA_OBJECT_TYPE_FUNCTION && ecma_builtin_function_is_routine (object_p)) { ecma_collection_header_t *for_enumerable_p = main_collection_p; (void) for_enumerable_p; ecma_collection_header_t *for_non_enumerable_p = separate_enumerable ? non_enum_collection_p : main_collection_p; /* 'length' property is non-enumerable (ECMA-262 v5, 15) */ ecma_string_t *name_p = ecma_new_ecma_length_string (); ecma_append_to_values_collection (for_non_enumerable_p, ecma_make_string_value (name_p), true); ecma_deref_ecma_string (name_p); } else { ecma_builtin_id_t builtin_id = (ecma_builtin_id_t) ext_obj_p->u.built_in.id; JERRY_ASSERT (builtin_id < ECMA_BUILTIN_ID__COUNT); JERRY_ASSERT (ecma_builtin_is (object_p, builtin_id)); const ecma_builtin_property_descriptor_t *curr_property_p = ecma_builtin_property_list_references[builtin_id]; ecma_length_t index = 0; uint32_t instantiated_bitset = ext_obj_p->u.built_in.instantiated_bitset; ecma_collection_header_t *for_non_enumerable_p = (separate_enumerable ? non_enum_collection_p : main_collection_p); while (curr_property_p->magic_string_id != LIT_MAGIC_STRING__COUNT) { JERRY_ASSERT (index < 64); if (index == 32) { ecma_property_t *mask_prop_p = ecma_find_internal_property (object_p, ECMA_INTERNAL_PROPERTY_INSTANTIATED_MASK_32_63); if (mask_prop_p == NULL) { instantiated_bitset = 0; } else { instantiated_bitset = ecma_get_internal_property_value (mask_prop_p); } } uint32_t bit_for_index; if (index >= 32) { bit_for_index = (uint32_t) 1u << (index - 32); } else { bit_for_index = (uint32_t) 1u << index; } bool was_instantiated = false; if (instantiated_bitset & bit_for_index) { was_instantiated = true; } ecma_string_t *name_p = ecma_get_magic_string (curr_property_p->magic_string_id); if (!was_instantiated || ecma_op_object_get_own_property (object_p, name_p) != NULL) { ecma_append_to_values_collection (for_non_enumerable_p, ecma_make_string_value (name_p), true); } ecma_deref_ecma_string (name_p); curr_property_p++; index++; } } } /* ecma_builtin_list_lazy_property_names */
/** * [[DefineOwnProperty]] ecma array object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 15.4.5.1 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_array_object_define_own_property (ecma_object_t *obj_p, /**< the array object */ ecma_string_t *property_name_p, /**< property name */ const ecma_property_descriptor_t *property_desc_p, /**< property descriptor */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (ecma_get_object_type (obj_p) == ECMA_OBJECT_TYPE_ARRAY); // 1. ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_property_t *len_prop_p = ecma_op_object_get_own_property (obj_p, magic_string_length_p); JERRY_ASSERT (len_prop_p != NULL && len_prop_p->type == ECMA_PROPERTY_NAMEDDATA); // 2. ecma_value_t old_len_value = ecma_get_named_data_property_value (len_prop_p); ecma_number_t *num_p = ecma_get_number_from_value (old_len_value); uint32_t old_len_uint32 = ecma_number_to_uint32 (*num_p); // 3. bool is_property_name_equal_length = ecma_compare_ecma_strings (property_name_p, magic_string_length_p); ecma_deref_ecma_string (magic_string_length_p); if (is_property_name_equal_length) { // a. if (!property_desc_p->is_value_defined) { // i. return ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, is_throw); } ecma_number_t new_len_num; // c. ecma_completion_value_t completion = ecma_op_to_number (property_desc_p->value); if (ecma_is_completion_value_throw (completion)) { return completion; } JERRY_ASSERT (ecma_is_completion_value_normal (completion) && ecma_is_value_number (ecma_get_completion_value_value (completion))); new_len_num = *ecma_get_number_from_completion_value (completion); ecma_free_completion_value (completion); uint32_t new_len_uint32 = ecma_number_to_uint32 (new_len_num); // d. if (ecma_uint32_to_number (new_len_uint32) != new_len_num) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_RANGE)); } else { // b., e. ecma_number_t *new_len_num_p = ecma_alloc_number (); *new_len_num_p = new_len_num; ecma_property_descriptor_t new_len_property_desc = *property_desc_p; new_len_property_desc.value = ecma_make_number_value (new_len_num_p); ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); // f. if (new_len_uint32 >= old_len_uint32) { // i. magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ret_value = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, is_throw); ecma_deref_ecma_string (magic_string_length_p); } else { // g. if (!ecma_is_property_writable (len_prop_p)) { ret_value = ecma_reject (is_throw); } else { // h. bool new_writable; if (!new_len_property_desc.is_writable_defined || new_len_property_desc.is_writable) { new_writable = true; } else { // ii. new_writable = false; // iii. new_len_property_desc.is_writable_defined = true; new_len_property_desc.is_writable = true; } // j. magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_completion_value_t succeeded = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, is_throw); ecma_deref_ecma_string (magic_string_length_p); /* Handling normal false and throw values */ if (!ecma_is_completion_value_normal_true (succeeded)) { JERRY_ASSERT (ecma_is_completion_value_normal_false (succeeded) || ecma_is_completion_value_throw (succeeded)); // k. ret_value = succeeded; } else { // l JERRY_ASSERT (new_len_uint32 < old_len_uint32); /* * Item i. is replaced with faster iteration: only indices that actually exist in the array, are iterated */ bool is_reduce_succeeded = true; ecma_collection_header_t *array_index_props_p = ecma_op_object_get_property_names (obj_p, true, false, false); ecma_length_t array_index_props_num = array_index_props_p->unit_number; MEM_DEFINE_LOCAL_ARRAY (array_index_values_p, array_index_props_num, uint32_t); ecma_collection_iterator_t iter; ecma_collection_iterator_init (&iter, array_index_props_p); uint32_t array_index_values_pos = 0; while (ecma_collection_iterator_next (&iter)) { ecma_string_t *property_name_p = ecma_get_string_from_value (*iter.current_value_p); uint32_t index; bool is_index = ecma_string_get_array_index (property_name_p, &index); JERRY_ASSERT (is_index); JERRY_ASSERT (index < old_len_uint32); array_index_values_p[array_index_values_pos++] = index; } JERRY_ASSERT (array_index_values_pos == array_index_props_num); while (array_index_values_pos != 0 && array_index_values_p[--array_index_values_pos] >= new_len_uint32) { uint32_t index = array_index_values_p[array_index_values_pos]; // ii. ecma_string_t *index_string_p = ecma_new_ecma_string_from_uint32 (index); ecma_completion_value_t delete_succeeded = ecma_op_object_delete (obj_p, index_string_p, false); ecma_deref_ecma_string (index_string_p); if (ecma_is_completion_value_normal_false (delete_succeeded)) { // iii. new_len_uint32 = (index + 1u); ecma_number_t *new_len_num_p = ecma_get_number_from_value (new_len_property_desc.value); // 1. *new_len_num_p = ecma_uint32_to_number (index + 1u); // 2. if (!new_writable) { new_len_property_desc.is_writable_defined = true; new_len_property_desc.is_writable = false; } // 3. ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_completion_value_t completion = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &new_len_property_desc, false); ecma_deref_ecma_string (magic_string_length_p); JERRY_ASSERT (ecma_is_completion_value_normal_true (completion) || ecma_is_completion_value_normal_false (completion)); is_reduce_succeeded = false; break; } } MEM_FINALIZE_LOCAL_ARRAY (array_index_values_p); ecma_free_values_collection (array_index_props_p, true); if (!is_reduce_succeeded) { ret_value = ecma_reject (is_throw); } else { // m. if (!new_writable) { ecma_property_descriptor_t prop_desc_not_writable = ecma_make_empty_property_descriptor (); prop_desc_not_writable.is_writable_defined = true; prop_desc_not_writable.is_writable = false; ecma_completion_value_t completion_set_not_writable; magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); completion_set_not_writable = ecma_op_general_object_define_own_property (obj_p, magic_string_length_p, &prop_desc_not_writable, false); ecma_deref_ecma_string (magic_string_length_p); JERRY_ASSERT (ecma_is_completion_value_normal_true (completion_set_not_writable)); } ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } } } } ecma_dealloc_number (new_len_num_p); return ret_value; } JERRY_UNREACHABLE (); } else { // 4.a. uint32_t index; if (!ecma_string_get_array_index (property_name_p, &index)) { // 5. return ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, is_throw); } // 4. // b. if (index >= old_len_uint32 && !ecma_is_property_writable (len_prop_p)) { return ecma_reject (is_throw); } // c. ecma_completion_value_t succeeded = ecma_op_general_object_define_own_property (obj_p, property_name_p, property_desc_p, false); // d. JERRY_ASSERT (ecma_is_completion_value_normal_true (succeeded) || ecma_is_completion_value_normal_false (succeeded)); if (ecma_is_completion_value_normal_false (succeeded)) { return ecma_reject (is_throw); } // e. if (index >= old_len_uint32) { // i., ii. ecma_number_t *num_p = ecma_alloc_number (); *num_p = ecma_number_add (ecma_uint32_to_number (index), ECMA_NUMBER_ONE); ecma_named_data_property_assign_value (obj_p, len_prop_p, ecma_make_number_value (num_p)); ecma_dealloc_number (num_p); } // f. return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } JERRY_UNREACHABLE (); } /* ecma_op_array_object_define_own_property */
/** * [[Put]] ecma general object's operation * * See also: * ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8 * ECMA-262 v5, 8.12.5 * Also incorporates [[CanPut]] ECMA-262 v5, 8.12.4 * * @return ecma value * The returned value must be freed with ecma_free_value. * * Returns with ECMA_SIMPLE_VALUE_TRUE if the operation is * successful. Otherwise it returns with an error object * or ECMA_SIMPLE_VALUE_FALSE. * * Note: even if is_throw is false, the setter can throw an * error, and this function returns with that error. */ ecma_value_t ecma_op_general_object_put (ecma_object_t *obj_p, /**< the object */ ecma_string_t *property_name_p, /**< property name */ ecma_value_t value, /**< ecma value */ bool is_throw) /**< flag that controls failure handling */ { JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p)); JERRY_ASSERT (property_name_p != NULL); ecma_object_t *setter_p = NULL; ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p); if (prop_p != NULL) { if (ECMA_PROPERTY_GET_TYPE (prop_p) == ECMA_PROPERTY_TYPE_NAMEDDATA) { if (ecma_is_property_writable (prop_p)) { const ecma_object_type_t type = ecma_get_object_type (obj_p); if (type == ECMA_OBJECT_TYPE_ARGUMENTS || (type == ECMA_OBJECT_TYPE_ARRAY && ecma_op_general_object_property_name_is_length (property_name_p))) { /* These cases cannot be optimized. */ ecma_property_descriptor_t value_desc = ecma_make_empty_property_descriptor (); value_desc.is_value_defined = true; value_desc.value = value; return ecma_op_object_define_own_property (obj_p, property_name_p, &value_desc, is_throw); } /* There is no need for special casing arrays here because changing the * value of an existing property never changes the length of an array. */ ecma_named_data_property_assign_value (obj_p, prop_p, value); return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } } else { JERRY_ASSERT (ECMA_PROPERTY_GET_TYPE (prop_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR); setter_p = ecma_get_named_accessor_property_setter (prop_p); } } else { ecma_object_t *proto_p = ecma_get_object_prototype (obj_p); bool create_new_property = true; if (proto_p != NULL) { ecma_property_t *inherited_prop_p = ecma_op_object_get_property (proto_p, property_name_p); if (inherited_prop_p != NULL) { if (ECMA_PROPERTY_GET_TYPE (inherited_prop_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR) { setter_p = ecma_get_named_accessor_property_setter (inherited_prop_p); create_new_property = false; } else { create_new_property = ecma_is_property_writable (inherited_prop_p); } } } if (create_new_property && ecma_get_object_extensible (obj_p)) { const ecma_object_type_t type = ecma_get_object_type (obj_p); if (type == ECMA_OBJECT_TYPE_ARGUMENTS) { return ecma_builtin_helper_def_prop (obj_p, property_name_p, value, true, /* Writable */ true, /* Enumerable */ true, /* Configurable */ is_throw); /* Failure handling */ } uint32_t index; if (type == ECMA_OBJECT_TYPE_ARRAY && ecma_string_get_array_index (property_name_p, &index)) { /* Since the length of an array is a non-configurable named data * property, the prop_p must be a non-NULL pointer for all arrays. */ JERRY_ASSERT (!ecma_op_general_object_property_name_is_length (property_name_p)); ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_property_t *len_prop_p = ecma_op_object_get_own_property (obj_p, magic_string_length_p); ecma_deref_ecma_string (magic_string_length_p); JERRY_ASSERT (len_prop_p != NULL && ECMA_PROPERTY_GET_TYPE (len_prop_p) == ECMA_PROPERTY_TYPE_NAMEDDATA); uint32_t old_len = ecma_get_uint32_from_value (ecma_get_named_data_property_value (len_prop_p)); if (index < UINT32_MAX && index >= old_len) { if (!ecma_is_property_writable (len_prop_p)) { return ecma_reject (is_throw); } ecma_property_value_t *len_prop_value_p = ECMA_PROPERTY_VALUE_PTR (len_prop_p); ecma_value_assign_uint32 (&len_prop_value_p->value, index + 1); } } ecma_property_t *new_prop_p = ecma_create_named_data_property (obj_p, property_name_p, true, /* Writable */ true, /* Enumerable */ true); /* Configurable */ JERRY_ASSERT (ecma_is_value_undefined (ecma_get_named_data_property_value (new_prop_p))); ecma_set_named_data_property_value (new_prop_p, ecma_copy_value_if_not_object (value)); return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } } if (setter_p == NULL) { return ecma_reject (is_throw); } ecma_value_t ret_value = ecma_op_function_call (setter_p, ecma_make_object_value (obj_p), &value, 1); if (!ecma_is_value_error (ret_value)) { ecma_fast_free_value (ret_value); ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); } return ret_value; } /* ecma_op_general_object_put */