/** * Common function to create a formatted JSON string. * * See also: * ECMA-262 v5, 15.12.3 * * Used by: * - ecma_builtin_json_object step 10.b * - ecma_builtin_json_array step 10.b * * @return ecma value * Returned value must be freed with ecma_free_value. */ ecma_value_t ecma_builtin_helper_json_create_formatted_json (ecma_string_t *left_bracket_p, /**< left bracket*/ ecma_string_t *right_bracket_p, /**< right bracket*/ ecma_string_t *stepback_p, /**< stepback*/ ecma_collection_header_t *partial_p, /**< key-value pairs*/ ecma_json_stringify_context_t *context_p) /**< context*/ { /* 10.b */ ecma_string_t *comma_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_COMMA_CHAR); ecma_string_t *line_feed_p = ecma_get_magic_string (LIT_MAGIC_STRING_NEW_LINE_CHAR); ecma_string_t *properties_str_p; ecma_string_t *separator_p; /* 10.b.i */ ecma_string_t *tmp_str_p = ecma_concat_ecma_strings (comma_str_p, line_feed_p); ecma_deref_ecma_string (comma_str_p); separator_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (separator_p, context_p->indent_str_p); ecma_deref_ecma_string (separator_p); separator_p = tmp_str_p; /* 10.b.ii */ properties_str_p = ecma_builtin_helper_json_create_separated_properties (partial_p, separator_p); ecma_deref_ecma_string (separator_p); /* 10.b.iii */ ecma_string_t *final_str_p; tmp_str_p = ecma_concat_ecma_strings (left_bracket_p, line_feed_p); final_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (final_str_p, context_p->indent_str_p); ecma_deref_ecma_string (final_str_p); final_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (final_str_p, properties_str_p); ecma_deref_ecma_string (final_str_p); ecma_deref_ecma_string (properties_str_p); final_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (final_str_p, line_feed_p); ecma_deref_ecma_string (line_feed_p); ecma_deref_ecma_string (final_str_p); final_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (final_str_p, stepback_p); ecma_deref_ecma_string (final_str_p); final_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (final_str_p, right_bracket_p); ecma_deref_ecma_string (final_str_p); final_str_p = tmp_str_p; return ecma_make_string_value (final_str_p); } /* ecma_builtin_helper_json_create_formatted_json */
/** * The Date.prototype object's 'toString' routine * * See also: * ECMA-262 v5, 15.9.5.2 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_date_prototype_to_string (ecma_value_t this_arg) /**< this argument */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ECMA_TRY_CATCH (prim_value, ecma_date_get_primitive_value (this_arg), ret_value); ecma_number_t *prim_num_p = ecma_get_number_from_value (prim_value); if (ecma_number_is_nan (*prim_num_p)) { ecma_string_t *magic_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_INVALID_DATE_UL); ret_value = ecma_make_string_value (magic_str_p); } else { ret_value = ecma_date_value_to_string (*prim_num_p); } ECMA_FINALIZE (prim_value); return ret_value; } /* ecma_builtin_date_prototype_to_string */
/** * List names of a Function object's lazy instantiated properties, * adding them to corresponding string collections * * See also: * ecma_op_function_try_lazy_instantiate_property */ void ecma_op_function_list_lazy_property_names (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 */ { ecma_collection_header_t *for_enumerable_p = main_collection_p; JERRY_UNUSED (for_enumerable_p); ecma_collection_header_t *for_non_enumerable_p = separate_enumerable ? non_enum_collection_p : main_collection_p; ecma_string_t *name_p; /* 'length' property is non-enumerable (ECMA-262 v5, 13.2.5) */ 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); /* 'prototype' property is non-enumerable (ECMA-262 v5, 13.2.18) */ name_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE); ecma_append_to_values_collection (for_non_enumerable_p, ecma_make_string_value (name_p), true); ecma_deref_ecma_string (name_p); } /* ecma_op_function_list_lazy_property_names */
/** * The Date.prototype object's 'toJSON' routine * * See also: * ECMA-262 v5, 15.9.5.44 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_date_prototype_to_json (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< key */ { JERRY_UNUSED (arg); ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 1. */ ECMA_TRY_CATCH (obj, ecma_op_to_object (this_arg), ret_value); /* 2. */ ECMA_TRY_CATCH (tv, ecma_op_to_primitive (obj, ECMA_PREFERRED_TYPE_NUMBER), ret_value); /* 3. */ if (ecma_is_value_number (tv)) { ecma_number_t num_value = ecma_get_number_from_value (tv); if (ecma_number_is_nan (num_value) || ecma_number_is_infinity (num_value)) { ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_NULL); } } if (ecma_is_value_empty (ret_value)) { ecma_string_t *to_iso_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_TO_ISO_STRING_UL); ecma_object_t *value_obj_p = ecma_get_object_from_value (obj); /* 4. */ ECMA_TRY_CATCH (to_iso, ecma_op_object_get (value_obj_p, to_iso_str_p), ret_value); /* 5. */ if (!ecma_op_is_callable (to_iso)) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("")); } /* 6. */ else { ecma_object_t *to_iso_obj_p = ecma_get_object_from_value (to_iso); ret_value = ecma_op_function_call (to_iso_obj_p, this_arg, NULL, 0); } ECMA_FINALIZE (to_iso); ecma_deref_ecma_string (to_iso_str_p); } ECMA_FINALIZE (tv); ECMA_FINALIZE (obj); return ret_value; } /* ecma_builtin_date_prototype_to_json */
/** * Allocate new ecma-string and fill it with characters from the utf8 string * * @return pointer to ecma-string descriptor */ ecma_string_t * ecma_new_ecma_string_from_utf8 (const lit_utf8_byte_t *string_p, /**< utf-8 string */ lit_utf8_size_t string_size) /**< string size */ { JERRY_ASSERT (string_p != NULL || string_size == 0); JERRY_ASSERT (lit_is_cesu8_string_valid (string_p, string_size)); lit_magic_string_id_t magic_string_id; if (lit_is_utf8_string_magic (string_p, string_size, &magic_string_id)) { return ecma_get_magic_string (magic_string_id); } lit_magic_string_ex_id_t magic_string_ex_id; if (lit_is_ex_utf8_string_magic (string_p, string_size, &magic_string_ex_id)) { return ecma_get_magic_string_ex (magic_string_ex_id); } JERRY_ASSERT (string_size > 0 && string_size <= UINT16_MAX); ecma_string_t *string_desc_p = jmem_heap_alloc_block (sizeof (ecma_string_t) + string_size); string_desc_p->refs_and_container = ECMA_STRING_CONTAINER_HEAP_UTF8_STRING | ECMA_STRING_REF_ONE; string_desc_p->hash = lit_utf8_string_calc_hash (string_p, string_size); string_desc_p->u.common_field = 0; string_desc_p->u.utf8_string.size = (uint16_t) string_size; string_desc_p->u.utf8_string.length = (uint16_t) lit_utf8_string_length (string_p, string_size); lit_utf8_byte_t *data_p = (lit_utf8_byte_t *) (string_desc_p + 1); memcpy (data_p, string_p, string_size); return string_desc_p; } /* ecma_new_ecma_string_from_utf8 */
/** * External function object creation operation. * * Note: * external function object is implementation-defined object type * that represent functions implemented in native code, using Embedding API * * @return pointer to newly created external function object */ ecma_object_t * ecma_op_create_external_function_object (ecma_external_pointer_t code_p) /**< pointer to external native handler */ { ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE); ecma_object_t *function_obj_p; function_obj_p = ecma_create_object (prototype_obj_p, sizeof (ecma_extended_object_t), ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION); ecma_deref_object (prototype_obj_p); /* * [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION type. * * See also: ecma_object_get_class_name */ ecma_extended_object_t *ext_func_obj_p = (ecma_extended_object_t *) function_obj_p; ext_func_obj_p->u.external_function = code_p; ecma_string_t *magic_string_prototype_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE); ecma_builtin_helper_def_prop (function_obj_p, magic_string_prototype_p, ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED), true, /* Writable */ false, /* Enumerable */ false, /* Configurable */ false); /* Failure handling */ ecma_deref_ecma_string (magic_string_prototype_p); return function_obj_p; } /* ecma_op_create_external_function_object */
/** * The Date.prototype object's 'getYear' routine * * See also: * ECMA-262 v5, AnnexB.B.2.4 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_date_prototype_get_year (ecma_value_t this_arg) /**< this argument */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 1. */ ECMA_TRY_CATCH (value, ecma_builtin_date_prototype_get_time (this_arg), ret_value); ecma_number_t *this_num_p = ecma_get_number_from_value (value); /* 2. */ if (ecma_number_is_nan (*this_num_p)) { ecma_string_t *nan_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_NAN); ret_value = ecma_make_string_value (nan_str_p); } else { /* 3. */ ecma_number_t *ret_num_p = ecma_alloc_number (); *ret_num_p = ecma_date_year_from_time (ecma_date_local_time (*this_num_p)) - 1900; ret_value = ecma_make_number_value (ret_num_p); } ECMA_FINALIZE (value); return ret_value; } /* ecma_builtin_date_prototype_get_year */
/** * Common function to create a non-formatted JSON string. * * See also: * ECMA-262 v5, 15.12.3 * * Used by: * - ecma_builtin_json_object step 10.a * - ecma_builtin_json_array step 10.a * * @return ecma value * Returned value must be freed with ecma_free_value. */ ecma_value_t ecma_builtin_helper_json_create_non_formatted_json (ecma_string_t *left_bracket_p, /**< left bracket*/ ecma_string_t *right_bracket_p, /**< right bracket*/ ecma_collection_header_t *partial_p) /**< key-value pairs*/ { /* 10.a */ ecma_string_t *comma_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_COMMA_CHAR); ecma_string_t *properties_str_p; ecma_string_t *tmp_str_p; /* 10.a.i */ properties_str_p = ecma_builtin_helper_json_create_separated_properties (partial_p, comma_str_p); ecma_deref_ecma_string (comma_str_p); /* 10.a.ii */ tmp_str_p = ecma_concat_ecma_strings (left_bracket_p, properties_str_p); ecma_deref_ecma_string (properties_str_p); properties_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (properties_str_p, right_bracket_p); ecma_deref_ecma_string (properties_str_p); properties_str_p = tmp_str_p; return ecma_make_string_value (properties_str_p); } /* ecma_builtin_helper_json_create_non_formatted_json */
/** * Allocate new ecma-string and fill it with ecma-number * * @return pointer to ecma-string descriptor */ ecma_string_t * ecma_new_ecma_string_from_number (ecma_number_t num) /**< ecma-number */ { uint32_t uint32_num = ecma_number_to_uint32 (num); if (num == ((ecma_number_t) uint32_num)) { return ecma_new_ecma_string_from_uint32 (uint32_num); } if (ecma_number_is_nan (num)) { return ecma_get_magic_string (LIT_MAGIC_STRING_NAN); } if (ecma_number_is_infinity (num)) { lit_magic_string_id_t id = (ecma_number_is_negative (num) ? LIT_MAGIC_STRING_NEGATIVE_INFINITY_UL : LIT_MAGIC_STRING_INFINITY_UL); return ecma_get_magic_string (id); } lit_utf8_byte_t str_buf[ECMA_MAX_CHARS_IN_STRINGIFIED_NUMBER]; lit_utf8_size_t str_size = ecma_number_to_utf8_string (num, str_buf, sizeof (str_buf)); JERRY_ASSERT (str_size > 0); #ifndef JERRY_NDEBUG lit_magic_string_id_t magic_string_id; lit_magic_string_ex_id_t magic_string_ex_id; JERRY_ASSERT (!lit_is_utf8_string_magic (str_buf, str_size, &magic_string_id) && !lit_is_ex_utf8_string_magic (str_buf, str_size, &magic_string_ex_id)); #endif /* !JERRY_NDEBUG */ ecma_string_t *string_desc_p = jmem_heap_alloc_block (sizeof (ecma_string_t) + str_size); string_desc_p->refs_and_container = ECMA_STRING_CONTAINER_HEAP_UTF8_STRING | ECMA_STRING_REF_ONE; string_desc_p->hash = lit_utf8_string_calc_hash (str_buf, str_size); string_desc_p->u.common_field = 0; string_desc_p->u.utf8_string.size = (uint16_t) str_size; string_desc_p->u.utf8_string.length = (uint16_t) str_size; lit_utf8_byte_t *data_p = (lit_utf8_byte_t *) (string_desc_p + 1); memcpy (data_p, str_buf, str_size); return string_desc_p; } /* ecma_new_ecma_string_from_number */
/** * Checks whether the property name is "length". * * @return true if the property name is length * false otherwise */ static inline bool __attr_always_inline___ ecma_op_general_object_property_name_is_length (ecma_string_t *property_name_p) /**< property name */ { ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); bool property_name_is_length = ecma_compare_ecma_strings (property_name_p, magic_string_length_p); ecma_deref_ecma_string (magic_string_length_p); return property_name_is_length; } /* ecma_op_general_object_property_name_is_length */
/** * The RegExp.prototype object's 'exec' routine * * See also: * ECMA-262 v5, 15.10.6.2 * * @return array object containing the results - if the matched * null - otherwise * * May raise error, so returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_regexp_prototype_exec (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< routine's argument */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); if (!ecma_is_value_object (this_arg) || ecma_object_get_class_name (ecma_get_object_from_value (this_arg)) != LIT_MAGIC_STRING_REGEXP_UL) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Incomplete RegExp type")); } else { ECMA_TRY_CATCH (obj_this, ecma_op_to_object (this_arg), ret_value); ECMA_TRY_CATCH (input_str_value, ecma_op_to_string (arg), ret_value); ecma_property_t *bytecode_prop_p; ecma_object_t *obj_p = ecma_get_object_from_value (obj_this); bytecode_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_REGEXP_BYTECODE); void *bytecode_p = ECMA_GET_INTERNAL_VALUE_POINTER (void, ecma_get_internal_property_value (bytecode_prop_p)); if (bytecode_p == NULL) { /* Missing bytecode means empty RegExp: '/(?:)/', so always return empty string. */ ecma_string_t *capture_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY); ecma_value_t arguments_list[1]; arguments_list[0] = ecma_make_string_value (capture_str_p); ret_value = ecma_op_create_array_object (arguments_list, 1, false); ecma_deref_ecma_string (capture_str_p); re_set_result_array_properties (ecma_get_object_from_value (ret_value), ecma_get_string_from_value (input_str_value), 1, 0); } else { ret_value = ecma_regexp_exec_helper (obj_this, input_str_value, false); } ECMA_FINALIZE (input_str_value); ECMA_FINALIZE (obj_this); } return ret_value; } /* ecma_builtin_regexp_prototype_exec */
/** * The Function.prototype object's 'toString' routine * * See also: * ECMA-262 v5, 15.3.4.2 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_function_prototype_object_to_string (ecma_value_t this_arg) /**< this argument */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); if (!ecma_op_is_callable (this_arg)) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("")); } else { ecma_string_t *function_to_string_p = ecma_get_magic_string (LIT_MAGIC_STRING__FUNCTION_TO_STRING); ret_value = ecma_make_string_value (function_to_string_p); } return ret_value; } /* ecma_builtin_function_prototype_object_to_string */
/** * The Function.prototype object's 'toString' routine * * See also: * ECMA-262 v5, 15.3.4.2 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_function_prototype_object_to_string (ecma_value_t this_arg) /**< this argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); if (!ecma_op_is_callable (this_arg)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { ecma_string_t *function_to_string_p = ecma_get_magic_string (LIT_MAGIC_STRING__FUNCTION_TO_STRING); ret_value = ecma_make_normal_completion_value (ecma_make_string_value (function_to_string_p)); } return ret_value; } /* ecma_builtin_function_prototype_object_to_string */
/** * The String.prototype object's 'charAt' routine * * See also: * ECMA-262 v5, 15.5.4.4 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_string_prototype_object_char_at (ecma_value_t this_arg, /**< this argument */ ecma_value_t arg) /**< routine's argument */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); /* 1 */ ECMA_TRY_CATCH (check_coercible_val, ecma_op_check_object_coercible (this_arg), ret_value); /* 2 */ ECMA_TRY_CATCH (to_string_val, ecma_op_to_string (this_arg), ret_value); /* 3 */ ECMA_OP_TO_NUMBER_TRY_CATCH (index_num, arg, ret_value); /* 4 */ ecma_string_t *original_string_p = ecma_get_string_from_value (to_string_val); const ecma_length_t len = ecma_string_get_length (original_string_p); /* 5 */ if (index_num < 0 || index_num >= len || !len) { ret_value = ecma_make_normal_completion_value (ecma_make_string_value ( ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY))); } else { /* 6 */ ecma_char_t new_ecma_char = ecma_string_get_char_at_pos (original_string_p, ecma_number_to_uint32 (index_num)); ret_value = ecma_make_normal_completion_value (ecma_make_string_value ( ecma_new_ecma_string_from_code_unit (new_ecma_char))); } ECMA_OP_TO_NUMBER_FINALIZE (index_num); ECMA_FINALIZE (to_string_val); ECMA_FINALIZE (check_coercible_val); return ret_value; } /* ecma_builtin_string_prototype_object_char_at */
/** * Construct a Function object for specified built-in routine * * See also: ECMA-262 v5, 15 * * @return pointer to constructed Function object */ ecma_object_t* ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**< identifier of built-in object that initially contains property with the routine */ uint16_t routine_id, /**< builtin-wide identifier of the built-in object's routine property */ ecma_number_t length_prop_num_value) /**< ecma-number - value of 'length' property of function object to create */ { ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE); ecma_object_t *func_obj_p = ecma_create_object (prototype_obj_p, true, ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION); ecma_deref_object (prototype_obj_p); ecma_set_object_is_builtin (func_obj_p, true); uint64_t packed_value = jrt_set_bit_field_value (0, builtin_id, ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_POS, ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_WIDTH); packed_value = jrt_set_bit_field_value (packed_value, routine_id, ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_POS, ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_WIDTH); ecma_property_t *routine_id_prop_p = ecma_create_internal_property (func_obj_p, ECMA_INTERNAL_PROPERTY_BUILT_IN_ROUTINE_ID); JERRY_ASSERT ((uint32_t) packed_value == packed_value); routine_id_prop_p->u.internal_property.value = (uint32_t) packed_value; ecma_string_t* magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_property_t *len_prop_p = ecma_create_named_data_property (func_obj_p, magic_string_length_p, false, false, false); ecma_deref_ecma_string (magic_string_length_p); ecma_number_t* len_p = ecma_alloc_number (); *len_p = length_prop_num_value; ecma_set_named_data_property_value (len_prop_p, ecma_make_number_value (len_p)); return func_obj_p; } /* ecma_builtin_make_function_object_for_routine */
/** * Standard ecma-error object constructor. * * @return pointer to ecma-object representing specified error * with reference counter set to one. */ ecma_object_t * ecma_new_standard_error_with_message (ecma_standard_error_t error_type, /**< native error type */ ecma_string_t *message_string_p) /**< message string */ { ecma_object_t *new_error_obj_p = ecma_new_standard_error (error_type); ecma_string_t *message_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_MESSAGE); ecma_property_t *prop_p = ecma_create_named_data_property (new_error_obj_p, message_magic_string_p, ECMA_PROPERTY_CONFIGURABLE_WRITABLE); ecma_ref_ecma_string (message_string_p); ecma_set_named_data_property_value (prop_p, ecma_make_string_value (message_string_p)); ecma_deref_ecma_string (message_magic_string_p); return new_error_obj_p; } /* ecma_new_standard_error_with_message */
/** * External function object creation operation. * * Note: * external function object is implementation-defined object type * that represent functions implemented in native code, using Embedding API * * @return pointer to newly created external function object */ ecma_object_t* ecma_op_create_external_function_object (ecma_external_pointer_t code_p) /**< pointer to external native handler */ { ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE); ecma_object_t *function_obj_p = ecma_create_object (prototype_obj_p, true, ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION); ecma_deref_object (prototype_obj_p); /* * [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION type. * * See also: ecma_object_get_class_name */ bool is_created = ecma_create_external_pointer_property (function_obj_p, ECMA_INTERNAL_PROPERTY_NATIVE_CODE, (ecma_external_pointer_t) code_p); JERRY_ASSERT (is_created); ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor (); { prop_desc.is_value_defined = true; prop_desc.value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED); prop_desc.is_writable_defined = true; prop_desc.is_writable = true; prop_desc.is_enumerable_defined = true; prop_desc.is_enumerable = false; prop_desc.is_configurable_defined = true; prop_desc.is_configurable = false; } ecma_string_t *magic_string_prototype_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE); ecma_op_object_define_own_property (function_obj_p, magic_string_prototype_p, &prop_desc, false); ecma_deref_ecma_string (magic_string_prototype_p); return function_obj_p; } /* ecma_op_create_external_function_object */
/** * 'typeof' opcode handler. * * See also: ECMA-262 v5, 11.4.3 * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_value_t opfunc_typeof (ecma_value_t left_value) /**< left value */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); ecma_string_t *type_str_p = NULL; if (ecma_is_value_undefined (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_UNDEFINED); } else if (ecma_is_value_null (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_OBJECT); } else if (ecma_is_value_boolean (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_BOOLEAN); } else if (ecma_is_value_number (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_NUMBER); } else if (ecma_is_value_string (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_STRING); } else { JERRY_ASSERT (ecma_is_value_object (left_value)); if (ecma_op_is_callable (left_value)) { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_FUNCTION); } else { type_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_OBJECT); } } ret_value = ecma_make_string_value (type_str_p); return ret_value; } /* opfunc_typeof */
/** * Common function to concatenate key-value pairs into an ecma-string. * * See also: * ECMA-262 v5, 15.12.3 * * Used by: * - ecma_builtin_helper_json_create_formatted_json step 10.b.ii * - ecma_builtin_helper_json_create_non_formatted_json step 10.a.i * * @return pointer to ecma-string * Returned value must be freed with ecma_deref_ecma_string. */ ecma_string_t * ecma_builtin_helper_json_create_separated_properties (ecma_collection_header_t *partial_p, /**< key-value pairs*/ ecma_string_t *separator_p) /**< separator*/ { ecma_string_t *properties_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY); ecma_string_t *tmp_str_p; ecma_collection_iterator_t iterator; ecma_collection_iterator_init (&iterator, partial_p); uint32_t index = 0; while (ecma_collection_iterator_next (&iterator)) { ecma_value_t name_value = *iterator.current_value_p; ecma_string_t *current_p = ecma_get_string_from_value (name_value); if (index == 0) { index++; tmp_str_p = ecma_concat_ecma_strings (properties_str_p, current_p); ecma_deref_ecma_string (properties_str_p); properties_str_p = tmp_str_p; continue; } tmp_str_p = ecma_concat_ecma_strings (properties_str_p, separator_p); ecma_deref_ecma_string (properties_str_p); properties_str_p = tmp_str_p; tmp_str_p = ecma_concat_ecma_strings (properties_str_p, current_p); ecma_deref_ecma_string (properties_str_p); properties_str_p = tmp_str_p; } return properties_str_p; } /* ecma_builtin_helper_json_create_separated_properties */
/** * The Date.prototype object's 'toDateString' routine * * See also: * ECMA-262 v5, 15.9.5.3 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_date_prototype_to_date_string (ecma_value_t this_arg) /**< this argument */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); if (!ecma_is_value_object (this_arg) || ecma_object_get_class_name (ecma_get_object_from_value (this_arg)) != LIT_MAGIC_STRING_DATE_UL) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Incompatible type")); } else { ECMA_TRY_CATCH (obj_this, ecma_op_to_object (this_arg), ret_value); ecma_object_t *obj_p = ecma_get_object_from_value (obj_this); ecma_property_t *prim_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PRIMITIVE_NUMBER_VALUE); ecma_number_t *prim_value_num_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_number_t, ecma_get_internal_property_value (prim_prop_p)); if (ecma_number_is_nan (*prim_value_num_p)) { ecma_string_t *magic_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_INVALID_DATE_UL); ret_value = ecma_make_string_value (magic_str_p); } else { ret_value = ecma_date_value_to_date_string (*prim_value_num_p); } ECMA_FINALIZE (obj_this); } return ret_value; } /* ecma_builtin_date_prototype_to_date_string */
/** * Convert decimal value to 4 digit hexadecimal string value. * * See also: * ECMA-262 v5, 15.12.3 * * Used by: * - ecma_builtin_json_quote step 2.c.iii * * @return pointer to ecma-string * Returned value must be freed with ecma_deref_ecma_string. */ ecma_string_t * ecma_builtin_helper_json_create_hex_digit_ecma_string (uint8_t value) /**< value in decimal*/ { /* 2.c.iii */ ecma_string_t *hex_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY); JMEM_DEFINE_LOCAL_ARRAY (hex_buff, 4, lit_utf8_byte_t); for (uint32_t i = 0; i < 4; i++) { uint8_t remainder = value % 16; lit_utf8_byte_t ch = ' '; if (remainder < 10) { ch = (lit_utf8_byte_t) (LIT_CHAR_0 + remainder); } else { uint8_t a = (uint8_t) (remainder - 10); ch = (lit_utf8_byte_t) (LIT_CHAR_LOWERCASE_A + a); } hex_buff[3 - i] = ch; value = value / 16; } ecma_deref_ecma_string (hex_str_p); hex_str_p = ecma_new_ecma_string_from_utf8 ((lit_utf8_byte_t *) hex_buff, 4); JMEM_FINALIZE_LOCAL_ARRAY (hex_buff); JERRY_ASSERT (ecma_string_get_length (hex_str_p)); return hex_str_p; } /* ecma_builtin_helper_json_create_hex_digit_ecma_string */
/** * The Object.prototype object's 'toLocaleString' routine * * See also: * ECMA-262 v5, 15.2.4.3 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_object_prototype_object_to_locale_string (ecma_value_t this_arg) /**< this argument */ { ecma_value_t return_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 1. */ ECMA_TRY_CATCH (obj_val, ecma_op_to_object (this_arg), return_value); ecma_object_t *obj_p = ecma_get_object_from_value (obj_val); ecma_string_t *to_string_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_TO_STRING_UL); /* 2. */ ECMA_TRY_CATCH (to_string_val, ecma_op_object_get (obj_p, to_string_magic_string_p), return_value); /* 3. */ if (!ecma_op_is_callable (to_string_val)) { return_value = ecma_raise_type_error (ECMA_ERR_MSG ("")); } else { /* 4. */ ecma_object_t *to_string_func_obj_p = ecma_get_object_from_value (to_string_val); return_value = ecma_op_function_call (to_string_func_obj_p, this_arg, NULL, 0); } ECMA_FINALIZE (to_string_val); ecma_deref_ecma_string (to_string_magic_string_p); ECMA_FINALIZE (obj_val); return return_value; } /* ecma_builtin_object_prototype_object_to_locale_string */
/** * The Object.prototype object's 'toLocaleString' routine * * See also: * ECMA-262 v5, 15.2.4.3 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ static ecma_completion_value_t ecma_builtin_object_prototype_object_to_locale_string (ecma_value_t this_arg) /**< this argument */ { ecma_completion_value_t return_value = ecma_make_empty_completion_value (); /* 1. */ ECMA_TRY_CATCH (obj_val, ecma_op_to_object (this_arg), return_value); ecma_object_t *obj_p = ecma_get_object_from_value (obj_val); ecma_string_t *to_string_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_TO_STRING_UL); /* 2. */ ECMA_TRY_CATCH (to_string_val, ecma_op_object_get (obj_p, to_string_magic_string_p), return_value); /* 3. */ if (!ecma_op_is_callable (to_string_val)) { return_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { /* 4. */ ecma_object_t *to_string_func_obj_p = ecma_get_object_from_value (to_string_val); return_value = ecma_op_function_call (to_string_func_obj_p, this_arg, NULL); } ECMA_FINALIZE (to_string_val); ecma_deref_ecma_string (to_string_magic_string_p); ECMA_FINALIZE (obj_val); return return_value; } /* ecma_builtin_object_prototype_object_to_locale_string */
/** * Helper function for concatenating an ecma_value_t to an Array. * * See also: * ECMA-262 v5, 15.4.4.4 steps 5.b - 5.c * * Used by: * - The Array.prototype.concat routine. * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ ecma_completion_value_t ecma_builtin_helper_array_concat_value (ecma_object_t *obj_p, /**< array */ uint32_t *length_p, /**< in-out: array's length */ ecma_value_t value) /**< value to concat */ { ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); /* 5.b */ if (ecma_is_value_object (value) && (ecma_object_get_class_name (ecma_get_object_from_value (value)) == LIT_MAGIC_STRING_ARRAY_UL)) { ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); /* 5.b.ii */ ECMA_TRY_CATCH (arg_len_value, ecma_op_object_get (ecma_get_object_from_value (value), magic_string_length_p), ret_value); ECMA_OP_TO_NUMBER_TRY_CATCH (arg_len_number, arg_len_value, ret_value); uint32_t arg_len = ecma_number_to_uint32 (arg_len_number); /* 5.b.iii */ for (uint32_t array_index = 0; array_index < arg_len && ecma_is_completion_value_empty (ret_value); array_index++) { ecma_string_t *array_index_string_p = ecma_new_ecma_string_from_uint32 (array_index); /* 5.b.iii.2 */ if (ecma_op_object_get_property (ecma_get_object_from_value (value), array_index_string_p) != NULL) { ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 (*length_p + array_index); /* 5.b.iii.3.a */ ECMA_TRY_CATCH (get_value, ecma_op_object_get (ecma_get_object_from_value (value), array_index_string_p), ret_value); ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor (); { prop_desc.is_value_defined = true; prop_desc.value = get_value; prop_desc.is_writable_defined = true; prop_desc.is_writable = true; prop_desc.is_enumerable_defined = true; prop_desc.is_enumerable = true; prop_desc.is_configurable_defined = true; prop_desc.is_configurable = true; } /* 5.b.iii.3.b */ /* This will always be a simple value since 'is_throw' is false, so no need to free. */ ecma_completion_value_t put_comp = ecma_op_object_define_own_property (obj_p, new_array_index_string_p, &prop_desc, false); JERRY_ASSERT (ecma_is_completion_value_normal_true (put_comp)); ECMA_FINALIZE (get_value); ecma_deref_ecma_string (new_array_index_string_p); } ecma_deref_ecma_string (array_index_string_p); } *length_p += arg_len; ECMA_OP_TO_NUMBER_FINALIZE (arg_len_number); ECMA_FINALIZE (arg_len_value); ecma_deref_ecma_string (magic_string_length_p); } else { ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 ((*length_p)++); ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor (); { prop_desc.is_value_defined = true; prop_desc.value = value; prop_desc.is_writable_defined = true; prop_desc.is_writable = true; prop_desc.is_enumerable_defined = true; prop_desc.is_enumerable = true; prop_desc.is_configurable_defined = true; prop_desc.is_configurable = true; } /* 5.c.i */ /* This will always be a simple value since 'is_throw' is false, so no need to free. */ ecma_completion_value_t put_comp = ecma_op_object_define_own_property (obj_p, new_array_index_string_p, &prop_desc, false); JERRY_ASSERT (ecma_is_completion_value_normal_true (put_comp)); ecma_deref_ecma_string (new_array_index_string_p); } if (ecma_is_completion_value_empty (ret_value)) { ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE); } return ret_value; } /* ecma_builtin_helper_array_concat_value */
/** * The Function.prototype object's 'bind' routine * * See also: * ECMA-262 v5, 15.3.4.5 * * @return ecma value * Returned value must be freed with ecma_free_value. */ static ecma_value_t ecma_builtin_function_prototype_object_bind (ecma_value_t this_arg, /**< this argument */ const ecma_value_t *arguments_list_p, /**< list of arguments */ ecma_length_t arguments_number) /**< number of arguments */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); /* 2. */ if (!ecma_op_is_callable (this_arg)) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("")); } else { /* 4. 11. 18. */ ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE); ecma_object_t *function_p = ecma_create_object (prototype_obj_p, false, true, ECMA_OBJECT_TYPE_BOUND_FUNCTION); ecma_deref_object (prototype_obj_p); /* 7. */ ecma_value_t *target_function_prop_p; target_function_prop_p = ecma_create_internal_property (function_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_TARGET_FUNCTION); ecma_object_t *this_arg_obj_p = ecma_get_object_from_value (this_arg); ECMA_SET_INTERNAL_VALUE_POINTER (*target_function_prop_p, this_arg_obj_p); /* 8. */ ecma_value_t *bound_this_prop_p; bound_this_prop_p = ecma_create_internal_property (function_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_BOUND_THIS); const ecma_length_t arg_count = arguments_number; if (arg_count > 0) { *bound_this_prop_p = ecma_copy_value_if_not_object (arguments_list_p[0]); } else { *bound_this_prop_p = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED); } if (arg_count > 1) { ecma_collection_header_t *bound_args_collection_p; bound_args_collection_p = ecma_new_values_collection (&arguments_list_p[1], arg_count - 1, false); ecma_value_t *bound_args_prop_p; bound_args_prop_p = ecma_create_internal_property (function_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_BOUND_ARGS); ECMA_SET_INTERNAL_VALUE_POINTER (*bound_args_prop_p, bound_args_collection_p); } /* * [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_FUNCTION type. * * See also: ecma_object_get_class_name */ /* 16. */ ecma_number_t length = ECMA_NUMBER_ZERO; ecma_string_t *magic_string_length_p = ecma_new_ecma_length_string (); /* 15. */ if (ecma_object_get_class_name (this_arg_obj_p) == LIT_MAGIC_STRING_FUNCTION_UL) { ecma_value_t get_len_value = ecma_op_object_get (this_arg_obj_p, magic_string_length_p); JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (get_len_value)); JERRY_ASSERT (ecma_is_value_number (get_len_value)); const ecma_length_t bound_arg_count = arg_count > 1 ? arg_count - 1 : 0; /* 15.a */ length = ecma_get_number_from_value (get_len_value) - ((ecma_number_t) bound_arg_count); ecma_free_value (get_len_value); /* 15.b */ if (ecma_number_is_negative (length)) { length = ECMA_NUMBER_ZERO; } } /* 17. */ ecma_value_t completion = ecma_builtin_helper_def_prop (function_p, magic_string_length_p, ecma_make_number_value (length), false, /* Writable */ false, /* Enumerable */ false, /* Configurable */ false); /* Failure handling */ JERRY_ASSERT (ecma_is_value_boolean (completion)); ecma_deref_ecma_string (magic_string_length_p); /* 19-21. */ ecma_object_t *thrower_p = ecma_builtin_get (ECMA_BUILTIN_ID_TYPE_ERROR_THROWER); ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor (); { prop_desc.is_enumerable_defined = true; prop_desc.is_enumerable = false; prop_desc.is_configurable_defined = true; prop_desc.is_configurable = false; prop_desc.is_get_defined = true; prop_desc.get_p = thrower_p; prop_desc.is_set_defined = true; prop_desc.set_p = thrower_p; } ecma_string_t *magic_string_caller_p = ecma_get_magic_string (LIT_MAGIC_STRING_CALLER); completion = ecma_op_object_define_own_property (function_p, magic_string_caller_p, &prop_desc, false); JERRY_ASSERT (ecma_is_value_boolean (completion)); ecma_deref_ecma_string (magic_string_caller_p); ecma_string_t *magic_string_arguments_p = ecma_get_magic_string (LIT_MAGIC_STRING_ARGUMENTS); completion = ecma_op_object_define_own_property (function_p, magic_string_arguments_p, &prop_desc, false); JERRY_ASSERT (ecma_is_value_boolean (completion)); ecma_deref_ecma_string (magic_string_arguments_p); ecma_deref_object (thrower_p); /* 22. */ ret_value = ecma_make_object_value (function_p); } return ret_value; } /* ecma_builtin_function_prototype_object_bind */
/** * GetBindingValue operation. * * See also: ECMA-262 v5, 10.2.1 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ ecma_completion_value_t ecma_op_get_binding_value (ecma_object_t *lex_env_p, /**< lexical environment */ ecma_string_t *name_p, /**< argument N */ bool is_strict) /**< argument S */ { JERRY_ASSERT (lex_env_p != NULL && ecma_is_lexical_environment (lex_env_p)); JERRY_ASSERT (name_p != NULL); if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE) { #ifndef JERRY_NDEBUG # ifdef CONFIG_ECMA_COMPACT_PROFILE bool is_equal = false; ecma_string_t *arguments_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_ARGUMENTS); if (ecma_compare_ecma_strings (name_p, arguments_magic_string_p)) { is_equal = true; } ecma_deref_ecma_string (arguments_magic_string_p); JERRY_ASSERT (!is_equal); if (is_equal) { return ecma_make_throw_obj_completion_value (ecma_builtin_get (ECMA_BUILTIN_ID_COMPACT_PROFILE_ERROR)); } # endif /* CONFIG_ECMA_COMPACT_PROFILE */ #endif /* !JERRY_NDEBUG */ ecma_property_t *property_p = ecma_get_named_data_property (lex_env_p, name_p); ecma_value_t prop_value = ecma_get_named_data_property_value (property_p); /* is the binding mutable? */ if (!ecma_is_property_writable (property_p) && ecma_is_value_empty (prop_value)) { /* unitialized immutable binding */ if (is_strict) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_REFERENCE)); } else { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED); } } return ecma_make_normal_completion_value (ecma_copy_value (prop_value, true)); } else { JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND); ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p); if (ecma_op_object_get_property (binding_obj_p, name_p) == NULL) { if (is_strict) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_REFERENCE)); } else { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED); } } return ecma_op_object_get (binding_obj_p, name_p); } } /* ecma_op_get_binding_value */
/** * SetMutableBinding operation. * * See also: ECMA-262 v5, 10.2.1 * * @return completion value * Returned value must be freed with ecma_free_completion_value. */ ecma_completion_value_t ecma_op_set_mutable_binding (ecma_object_t *lex_env_p, /**< lexical environment */ ecma_string_t *name_p, /**< argument N */ ecma_value_t value, /**< argument V */ bool is_strict) /**< argument S */ { JERRY_ASSERT (lex_env_p != NULL && ecma_is_lexical_environment (lex_env_p)); JERRY_ASSERT (name_p != NULL); if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE) { #ifndef JERRY_NDEBUG # ifdef CONFIG_ECMA_COMPACT_PROFILE bool is_equal = false; ecma_string_t *arguments_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_ARGUMENTS); if (ecma_compare_ecma_strings (name_p, arguments_magic_string_p)) { is_equal = true; } ecma_deref_ecma_string (arguments_magic_string_p); JERRY_ASSERT (!is_equal); if (is_equal) { return ecma_make_throw_obj_completion_value (ecma_builtin_get (ECMA_BUILTIN_ID_COMPACT_PROFILE_ERROR)); } # endif /* CONFIG_ECMA_COMPACT_PROFILE */ #endif /* !JERRY_NDEBUG */ ecma_property_t *property_p = ecma_get_named_data_property (lex_env_p, name_p); if (ecma_is_property_writable (property_p)) { ecma_named_data_property_assign_value (lex_env_p, property_p, value); } else if (is_strict) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } } else { JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND); ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p); ecma_completion_value_t completion = ecma_op_object_put (binding_obj_p, name_p, value, is_strict); if (ecma_is_completion_value_throw (completion)) { return completion; } else { JERRY_ASSERT (ecma_is_completion_value_normal_true (completion) || ecma_is_completion_value_normal_false (completion)); } } return ecma_make_empty_completion_value (); } /* ecma_op_set_mutable_binding */
/** * [[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 */
/** * Array object creation operation. * * See also: ECMA-262 v5, 15.4.2.1 * ECMA-262 v5, 15.4.2.2 * * @return completion value * Returned value must be freed with ecma_free_completion_value */ ecma_completion_value_t ecma_op_create_array_object (const ecma_value_t *arguments_list_p, /**< list of arguments that are passed to Array constructor */ ecma_length_t arguments_list_len, /**< length of the arguments' list */ bool is_treat_single_arg_as_length) /**< if the value is true, arguments_list_len is 1 and single argument is Number, then treat the single argument as new Array's length rather than as single item of the Array */ { JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL); uint32_t length; const ecma_value_t *array_items_p; ecma_length_t array_items_count; if (is_treat_single_arg_as_length && arguments_list_len == 1 && ecma_is_value_number (arguments_list_p[0])) { ecma_number_t *num_p = ecma_get_number_from_value (arguments_list_p[0]); uint32_t num_uint32 = ecma_number_to_uint32 (*num_p); if (*num_p != ecma_uint32_to_number (num_uint32)) { return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_RANGE)); } else { length = num_uint32; array_items_p = NULL; array_items_count = 0; } } else { length = arguments_list_len; array_items_p = arguments_list_p; array_items_count = arguments_list_len; } #ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN ecma_object_t *array_prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_ARRAY_PROTOTYPE); #else /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN */ ecma_object_t *array_prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE); #endif /* CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN */ ecma_object_t *obj_p = ecma_create_object (array_prototype_obj_p, true, ECMA_OBJECT_TYPE_ARRAY); ecma_deref_object (array_prototype_obj_p); /* * [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_ARRAY type. * * See also: ecma_object_get_class_name */ ecma_string_t *length_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH); ecma_number_t *length_num_p = ecma_alloc_number (); *length_num_p = ecma_uint32_to_number (length); ecma_property_t *length_prop_p = ecma_create_named_data_property (obj_p, length_magic_string_p, true, false, false); ecma_set_named_data_property_value (length_prop_p, ecma_make_number_value (length_num_p)); ecma_deref_ecma_string (length_magic_string_p); for (uint32_t index = 0; index < array_items_count; index++) { if (ecma_is_value_array_hole (array_items_p[index])) { continue; } ecma_string_t *item_name_string_p = ecma_new_ecma_string_from_uint32 (index); ecma_builtin_helper_def_prop (obj_p, item_name_string_p, array_items_p[index], true, /* Writable */ true, /* Enumerable */ true, /* Configurable */ false); /* Failure handling */ ecma_deref_ecma_string (item_name_string_p); } return ecma_make_normal_completion_value (ecma_make_object_value (obj_p)); } /* ecma_op_create_array_object */
/* * Initializes the source, global, ignoreCase, multiline, and lastIndex properties of RegExp instance. */ void re_initialize_props (ecma_object_t *re_obj_p, /**< RegExp obejct */ ecma_string_t *source_p, /**< source string */ uint8_t flags) /**< flags */ { /* Set source property. ECMA-262 v5, 15.10.7.1 */ ecma_string_t *magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_SOURCE); ecma_property_t *prop_p = ecma_find_named_property (re_obj_p, magic_string_p); if (prop_p == NULL) { prop_p = ecma_create_named_data_property (re_obj_p, magic_string_p, false, false, false); } ecma_deref_ecma_string (magic_string_p); JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_named_data_property_assign_value (re_obj_p, prop_p, ecma_make_string_value (source_p)); ecma_simple_value_t prop_value; /* Set global property. ECMA-262 v5, 15.10.7.2 */ magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_GLOBAL); prop_p = ecma_find_named_property (re_obj_p, magic_string_p); if (prop_p == NULL) { prop_p = ecma_create_named_data_property (re_obj_p, magic_string_p, false, false, false); } ecma_deref_ecma_string (magic_string_p); prop_value = flags & RE_FLAG_GLOBAL ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE; JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value)); /* Set ignoreCase property. ECMA-262 v5, 15.10.7.3 */ magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_IGNORECASE_UL); prop_p = ecma_find_named_property (re_obj_p, magic_string_p); if (prop_p == NULL) { prop_p = ecma_create_named_data_property (re_obj_p, magic_string_p, false, false, false); } ecma_deref_ecma_string (magic_string_p); prop_value = flags & RE_FLAG_IGNORE_CASE ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE; JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value)); /* Set multiline property. ECMA-262 v5, 15.10.7.4 */ magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_MULTILINE); prop_p = ecma_find_named_property (re_obj_p, magic_string_p); if (prop_p == NULL) { prop_p = ecma_create_named_data_property (re_obj_p, magic_string_p, false, false, false); } ecma_deref_ecma_string (magic_string_p); prop_value = flags & RE_FLAG_MULTILINE ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE; JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value)); /* Set lastIndex property. ECMA-262 v5, 15.10.7.5 */ magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_LASTINDEX_UL); prop_p = ecma_find_named_property (re_obj_p, magic_string_p); if (prop_p == NULL) { prop_p = ecma_create_named_data_property (re_obj_p, magic_string_p, true, false, false); } ecma_deref_ecma_string (magic_string_p); ecma_number_t *lastindex_num_p = ecma_alloc_number (); *lastindex_num_p = ECMA_NUMBER_ZERO; JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA); ecma_named_data_property_assign_value (re_obj_p, prop_p, ecma_make_number_value (lastindex_num_p)); ecma_dealloc_number (lastindex_num_p); } /* re_initialize_props */