archive-gh-me/jerryscript
1
0
Fork 0
mirror of https://github.com/jerryscript-project/jerryscript.git synced 2025-12-15 16:29:21 +00:00
Code Issues Projects Releases Wiki Activity

Partial implementation of the Array.prototype built-in object.

Browse Source
This commit is contained in:
Ruben Ayrapetyan 2014-09-26 20:07:45 +04:00
parent 0e22967653
commit 47d384c565
3 changed files with 308 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

296
src/libecmabuiltins/ecma-builtin-array-prototype-object.c Normal file
View File

@ -0,0 +1,296 @@
/* Copyright 2014 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ecma-alloc.h"
#include "ecma-builtins.h"
#include "ecma-conversion.h"
#include "ecma-exceptions.h"
#include "ecma-gc.h"
#include "ecma-globals.h"
#include "ecma-helpers.h"
#include "ecma-objects.h"
#include "ecma-string-object.h"
#include "ecma-try-catch-macro.h"
#include "globals.h"
#define ECMA_BUILTINS_INTERNAL
#include "ecma-builtins-internal.h"
/** \addtogroup ecma ECMA
* @{
*
* \addtogroup ecmabuiltins
* @{
*
* \addtogroup arrayprototype ECMA Array.prototype object built-in
* @{
*/
/**
* List of the Array.prototype object built-in object value properties in format 'macro (name, value)'.
*/
#define ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_OBJECT_VALUES_PROPERTY_LIST(macro) \
macro (ECMA_MAGIC_STRING_CONSTRUCTOR, ecma_builtin_get (ECMA_BUILTIN_ID_ARRAY))
#define ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_NUMBER_VALUES_PROPERTY_LIST(macro) \
macro (ECMA_MAGIC_STRING_LENGTH, 0)
/**
* List of the Array.prototype object built-in routine properties in format
* 'macro (name, C function name, arguments number of the routine, length value of the routine)'.
*/
#define ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_ROUTINES_PROPERTY_LIST(macro) \
macro (ECMA_MAGIC_STRING_TO_STRING_UL, \
ecma_builtin_array_prototype_object_to_string, \
0, \
0)
TODO (/* Description of routines of Array.prototype object */)
/**
* List of the Array.prototype object's built-in property names
*/
static const ecma_magic_string_id_t ecma_builtin_property_names[] =
{
#define VALUE_PROP_LIST(name, value) name,
#define ROUTINE_PROP_LIST(name, c_function_name, args_number, length) name,
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_OBJECT_VALUES_PROPERTY_LIST (VALUE_PROP_LIST)
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_NUMBER_VALUES_PROPERTY_LIST (VALUE_PROP_LIST)
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_ROUTINES_PROPERTY_LIST (ROUTINE_PROP_LIST)
#undef VALUE_PROP_LIST
#undef ROUTINE_PROP_LIST
};
/**
* Number of the Array.prototype object's built-in properties
*/
const ecma_length_t ecma_builtin_array_prototype_property_number = (sizeof (ecma_builtin_property_names) /
sizeof (ecma_magic_string_id_t));
/**
* The Array.prototype object's 'toString' routine
*
* See also:
* ECMA-262 v5, 15.4.4.2
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_array_prototype_object_to_string (ecma_value_t this) /**< this argument */
{
JERRY_UNIMPLEMENTED_REF_UNUSED_VARS (this);
} /* ecma_builtin_array_prototype_object_to_string */
/**
* If the property's name is one of built-in properties of the Array.prototype object
* that is not instantiated yet, instantiate the property and
* return pointer to the instantiated property.
*
* @return pointer property, if one was instantiated,
* NULL - otherwise.
*/
ecma_property_t*
ecma_builtin_array_prototype_try_to_instantiate_property (ecma_object_t *obj_p, /**< object */
ecma_string_t *prop_name_p) /**< property's name */
{
JERRY_ASSERT (ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_ARRAY_PROTOTYPE));
JERRY_ASSERT (ecma_find_named_property (obj_p, prop_name_p) == NULL);
ecma_magic_string_id_t id;
if (!ecma_is_string_magic (prop_name_p, &id))
{
return NULL;
}
int32_t index = ecma_builtin_bin_search_for_magic_string_id_in_array (ecma_builtin_property_names,
ecma_builtin_array_prototype_property_number,
id);
if (index == -1)
{
return NULL;
}
JERRY_ASSERT (index >= 0 && (uint32_t) index < sizeof (uint64_t) * JERRY_BITSINBYTE);
uint32_t bit;
ecma_internal_property_id_t mask_prop_id;
if (index >= 32)
{
mask_prop_id = ECMA_INTERNAL_PROPERTY_NON_INSTANTIATED_BUILT_IN_MASK_32_63;
bit = (uint32_t) 1u << (index - 32);
}
else
{
mask_prop_id = ECMA_INTERNAL_PROPERTY_NON_INSTANTIATED_BUILT_IN_MASK_0_31;
bit = (uint32_t) 1u << index;
}
ecma_property_t *mask_prop_p = ecma_get_internal_property (obj_p, mask_prop_id);
uint32_t bit_mask = mask_prop_p->u.internal_property.value;
if (!(bit_mask & bit))
{
return NULL;
}
bit_mask &= ~bit;
mask_prop_p->u.internal_property.value = bit_mask;
ecma_value_t value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ecma_property_writable_value_t writable = ECMA_PROPERTY_WRITABLE;
ecma_property_enumerable_value_t enumerable = ECMA_PROPERTY_NOT_ENUMERABLE;
ecma_property_configurable_value_t configurable = ECMA_PROPERTY_CONFIGURABLE;
switch (id)
{
#define CASE_ROUTINE_PROP_LIST(name, c_function_name, args_number, length) case name:
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_ROUTINES_PROPERTY_LIST (CASE_ROUTINE_PROP_LIST)
#undef CASE_ROUTINE_PROP_LIST
{
ecma_object_t *func_obj_p = ecma_builtin_make_function_object_for_routine (ECMA_BUILTIN_ID_ARRAY_PROTOTYPE,
id);
value = ecma_make_object_value (func_obj_p);
break;
}
#define CASE_VALUE_PROP_LIST(name, value) case name:
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_OBJECT_VALUES_PROPERTY_LIST (CASE_VALUE_PROP_LIST)
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_NUMBER_VALUES_PROPERTY_LIST (CASE_VALUE_PROP_LIST)
#undef CASE_VALUE_PROP_LIST
{
switch (id)
{
#define CASE_OBJECT_VALUE_PROP_LIST(name, value_obj) case name: { value = ecma_make_object_value (value_obj); break; }
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_OBJECT_VALUES_PROPERTY_LIST (CASE_OBJECT_VALUE_PROP_LIST)
#undef CASE_OBJECT_VALUE_PROP_LIST
#define CASE_NUMBER_VALUE_PROP_LIST(name, value_num) case name: { ecma_number_t *num_p = ecma_alloc_number (); \
*num_p = (ecma_number_t) value_num; \
value = ecma_make_number_value (num_p); break; }
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_NUMBER_VALUES_PROPERTY_LIST (CASE_NUMBER_VALUE_PROP_LIST)
#undef CASE_NUMBER_VALUE_PROP_LIST
default:
{
JERRY_UNREACHABLE ();
}
}
break;
}
default:
{
JERRY_UNREACHABLE ();
}
}
ecma_property_t *prop_p = ecma_create_named_data_property (obj_p,
prop_name_p,
writable,
enumerable,
configurable);
prop_p->u.named_data_property.value = ecma_copy_value (value, false);
ecma_gc_update_may_ref_younger_object_flag_by_value (obj_p,
prop_p->u.named_data_property.value);
ecma_free_value (value, true);
return prop_p;
} /* ecma_builtin_array_prototype_try_to_instantiate_property */
/**
* Dispatcher of the Array.prototype object's built-in routines
*
* @return completion-value
* Returned value must be freed with ecma_free_completion_value.
*/
ecma_completion_value_t
ecma_builtin_array_prototype_dispatch_routine (ecma_magic_string_id_t builtin_routine_id, /**< Array.prototype
object's built-in
routine's name */
ecma_value_t this_arg_value __unused, /**< 'this' argument value */
ecma_value_t arguments_list [], /**< list of arguments
passed to routine */
ecma_length_t arguments_number) /**< length of arguments' list */
{
// const ecma_value_t value_undefined = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
FIXME (/*
* Remove void statements after implementation of
* an Array.prototype object's routine that accepts
* non-zero number of arguments.
*/);
(void) arguments_list;
(void) arguments_number;
switch (builtin_routine_id)
{
#define ROUTINE_ARG(n) (arguments_number >= n ? arguments_list[n - 1] : value_undefined)
#define ROUTINE_ARG_LIST_0
#define ROUTINE_ARG_LIST_1 , ROUTINE_ARG(1)
#define ROUTINE_ARG_LIST_2 ROUTINE_ARG_LIST_1, ROUTINE_ARG(2)
#define ROUTINE_ARG_LIST_3 ROUTINE_ARG_LIST_2, ROUTINE_ARG(3)
#define ROUTINE_ARG_LIST_NON_FIXED , arguments_list, arguments_number
#define CASE_ROUTINE_PROP_LIST(name, c_function_name, args_number, length) \
case name: \
{ \
return c_function_name (this_arg_value ROUTINE_ARG_LIST_ ## args_number); \
}
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_ROUTINES_PROPERTY_LIST (CASE_ROUTINE_PROP_LIST)
#undef CASE_ROUTINE_PROP_LIST
#undef ROUTINE_ARG_LIST_0
#undef ROUTINE_ARG_LIST_1
#undef ROUTINE_ARG_LIST_2
#undef ROUTINE_ARG_LIST_3
#undef ROUTINE_ARG_LIST_NON_FIXED
default:
{
JERRY_UNREACHABLE ();
}
}
} /* ecma_builtin_array_prototype_dispatch_routine */
/**
* Get number of routine's parameters
*
* @return number of parameters
*/
ecma_length_t
ecma_builtin_array_prototype_get_routine_parameters_number (ecma_magic_string_id_t builtin_routine_id) /**< built-in
routine's
name */
{
switch (builtin_routine_id)
{
#define CASE_ROUTINE_PROP_LIST(name, c_function_name, args_number, length) case name: return length;
ECMA_BUILTIN_ARRAY_PROTOTYPE_OBJECT_ROUTINES_PROPERTY_LIST (CASE_ROUTINE_PROP_LIST)
#undef CASE_ROUTINE_PROP_LIST
default:
{
JERRY_UNREACHABLE ();
}
}
} /* ecma_builtin_array_prototype_get_routine_parameters_number */
/**
* @}
* @}
* @}
*/

7
src/libecmabuiltins/ecma-builtins-internal.h
View File

@ -69,6 +69,11 @@ ecma_builtin_bin_search_for_magic_string_id_in_array (const ecma_magic_string_id
FUNCTION_UL, \
ECMA_BUILTIN_ID_OBJECT_PROTOTYPE, \
function_prototype) \
macro (ARRAY_PROTOTYPE, \
TYPE_ARRAY, \
ARRAY_UL, \
ECMA_BUILTIN_ID_OBJECT_PROTOTYPE, \
array_prototype) \
macro (STRING_PROTOTYPE, \
TYPE_GENERAL, \
STRING_UL, \
@ -87,7 +92,7 @@ ecma_builtin_bin_search_for_magic_string_id_in_array (const ecma_magic_string_id
macro (ARRAY, \
TYPE_FUNCTION, \
ARRAY_UL, \
ECMA_BUILTIN_ID__COUNT /* FIXME: ECMA_BUILTIN_ID_ARRAY_PROTOTYPE */, \
ECMA_BUILTIN_ID_ARRAY_PROTOTYPE, \
array) \
macro (STRING, \
TYPE_FUNCTION, \

6
tests/jerry/array.js
View File

@ -65,3 +65,9 @@ b.length = 5;
assert(b[50000] === undefined);
assert(([1, 2, 3]).length === 3);
assert(Array.prototype.constructor === Array);
assert(Array.prototype.length === 0);
Array.prototype[0] = 'string value';
assert(Array.prototype.length === 1);
assert(Array.prototype[0] === 'string value');