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jerryscript/jerry-core/ecma/operations/ecma-objects.c
Zoltan Herczeg c7dcce4fc7 Refactor object property chain to use property pairs. The patch 
itself seems a step back, but the primary aim is opening future
optimization opportunities. The list of changes follows:

 - Property is changed to be an abstract type, which has type, flags,
   and a value. It does not have a name anymore and property pointers
   cannot be compressed.
 - Full (32 bit) ecma values can be property values. This allows
   using non-compressed pointers for ecma values in the future.
 - The property chain is not restricted to the same item anymore,
   it can contain hash maps, arrays in the future.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2016-04-13 23:25:16 -07:00

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/* Copyright 2014-2015 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-array-object.h"
#include "ecma-builtins.h"
#include "ecma-exceptions.h"
#include "ecma-globals.h"
#include "ecma-function-object.h"
#include "ecma-lcache.h"
#include "ecma-string-object.h"
#include "ecma-objects-arguments.h"
#include "ecma-objects-general.h"
#include "ecma-objects.h"
/** \addtogroup ecma ECMA
* @{
*
* \addtogroup ecmaobjectsinternalops ECMA objects' operations
* @{
*/
/**
* Assert that specified object type value is valid
*/
static void
ecma_assert_object_type_is_valid (ecma_object_type_t type) /**< object's implementation-defined type */
{
JERRY_ASSERT (type == ECMA_OBJECT_TYPE_GENERAL
|| type == ECMA_OBJECT_TYPE_ARRAY
|| type == ECMA_OBJECT_TYPE_FUNCTION
|| type == ECMA_OBJECT_TYPE_BOUND_FUNCTION
|| type == ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION
|| type == ECMA_OBJECT_TYPE_STRING
|| type == ECMA_OBJECT_TYPE_ARGUMENTS
|| type == ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION);
} /* ecma_assert_object_type_is_valid */
/**
* [[Get]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_object_get (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);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
switch (type)
{
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_ARRAY:
case ECMA_OBJECT_TYPE_FUNCTION:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
case ECMA_OBJECT_TYPE_STRING:
{
return ecma_op_general_object_get (obj_p, property_name_p);
}
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
return ecma_op_arguments_object_get (obj_p, property_name_p);
}
}
JERRY_ASSERT (false);
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
} /* ecma_op_object_get */
/**
* Long path for ecma_op_object_get_own_property
*
* @return pointer to a property - if it exists,
* NULL (i.e. ecma-undefined) - otherwise.
*/
static ecma_property_t * __attr_noinline___
ecma_op_object_get_own_property_longpath (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p) /**< property name */
{
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
const bool is_builtin = ecma_get_object_is_builtin (obj_p);
ecma_property_t *prop_p = NULL;
switch (type)
{
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_ARRAY:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
{
prop_p = ecma_op_general_object_get_own_property (obj_p, property_name_p);
break;
}
case ECMA_OBJECT_TYPE_FUNCTION:
{
prop_p = ecma_op_function_object_get_own_property (obj_p, property_name_p);
break;
}
case ECMA_OBJECT_TYPE_STRING:
{
prop_p = ecma_op_string_object_get_own_property (obj_p, property_name_p);
break;
}
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
prop_p = ecma_op_arguments_object_get_own_property (obj_p, property_name_p);
break;
}
}
if (unlikely (prop_p == NULL))
{
if (is_builtin)
{
prop_p = ecma_builtin_try_to_instantiate_property (obj_p, property_name_p);
}
}
return prop_p;
} /* ecma_op_object_get_own_property_longpath */
/**
* [[GetOwnProperty]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return pointer to a property - if it exists,
* NULL (i.e. ecma-undefined) - otherwise.
*/
ecma_property_t *
ecma_op_object_get_own_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);
ecma_property_t *prop_p = NULL;
if (likely (ecma_lcache_lookup (obj_p, property_name_p, &prop_p)))
{
return prop_p;
}
else
{
return ecma_op_object_get_own_property_longpath (obj_p, property_name_p);
}
} /* ecma_op_object_get_own_property */
/**
* [[GetProperty]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return pointer to a property - if it exists,
* NULL (i.e. ecma-undefined) - otherwise.
*/
ecma_property_t *
ecma_op_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);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
/*
* typedef ecma_property_t * (*get_property_ptr_t) (ecma_object_t *, ecma_string_t *);
* static const get_property_ptr_t get_property [ECMA_OBJECT_TYPE__COUNT] =
* {
* [ECMA_OBJECT_TYPE_GENERAL] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_ARRAY] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_FUNCTION] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_BOUND_FUNCTION] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_ARGUMENTS] = &ecma_op_general_object_get_property,
* [ECMA_OBJECT_TYPE_STRING] = &ecma_op_general_object_get_property
* };
*
* return get_property[type] (obj_p, property_name_p);
*/
return ecma_op_general_object_get_property (obj_p, property_name_p);
} /* ecma_op_object_get_property */
/**
* [[Put]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_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);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
/*
* typedef ecma_property_t * (*put_ptr_t) (ecma_object_t *, ecma_string_t *);
* static const put_ptr_t put [ECMA_OBJECT_TYPE__COUNT] =
* {
* [ECMA_OBJECT_TYPE_GENERAL] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_ARRAY] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_FUNCTION] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_BOUND_FUNCTION] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_ARGUMENTS] = &ecma_op_general_object_put,
* [ECMA_OBJECT_TYPE_STRING] = &ecma_op_general_object_put
* };
*
* return put[type] (obj_p, property_name_p);
*/
return ecma_op_general_object_put (obj_p, property_name_p, value, is_throw);
} /* ecma_op_object_put */
/**
* [[CanPut]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return true - if [[Put]] with the given property name can be performed;
* false - otherwise.
*/
bool
ecma_op_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);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
/*
* typedef ecma_property_t * (*can_put_ptr_t) (ecma_object_t *, ecma_string_t *);
* static const can_put_ptr_t can_put [ECMA_OBJECT_TYPE__COUNT] =
* {
* [ECMA_OBJECT_TYPE_GENERAL] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_ARRAY] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_FUNCTION] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_BOUND_FUNCTION] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_ARGUMENTS] = &ecma_op_general_object_can_put,
* [ECMA_OBJECT_TYPE_STRING] = &ecma_op_general_object_can_put
* };
*
* return can_put[type] (obj_p, property_name_p);
*/
return ecma_op_general_object_can_put (obj_p, property_name_p);
} /* ecma_op_object_can_put */
/**
* [[Delete]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_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);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
switch (type)
{
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_ARRAY:
case ECMA_OBJECT_TYPE_FUNCTION:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
case ECMA_OBJECT_TYPE_STRING:
{
return ecma_op_general_object_delete (obj_p,
property_name_p,
is_throw);
}
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
return ecma_op_arguments_object_delete (obj_p,
property_name_p,
is_throw);
}
}
JERRY_ASSERT (false);
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
} /* ecma_op_object_delete */
/**
* [[DefaultValue]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_object_default_value (ecma_object_t *obj_p, /**< the object */
ecma_preferred_type_hint_t hint) /**< hint on preferred result type */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
/*
* typedef ecma_property_t * (*default_value_ptr_t) (ecma_object_t *, ecma_string_t *);
* static const default_value_ptr_t default_value [ECMA_OBJECT_TYPE__COUNT] =
* {
* [ECMA_OBJECT_TYPE_GENERAL] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_ARRAY] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_FUNCTION] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_BOUND_FUNCTION] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_ARGUMENTS] = &ecma_op_general_object_default_value,
* [ECMA_OBJECT_TYPE_STRING] = &ecma_op_general_object_default_value
* };
*
* return default_value[type] (obj_p, property_name_p);
*/
return ecma_op_general_object_default_value (obj_p, hint);
} /* ecma_op_object_default_value */
/**
* [[DefineOwnProperty]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_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 ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
switch (type)
{
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_FUNCTION:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
case ECMA_OBJECT_TYPE_STRING:
{
return ecma_op_general_object_define_own_property (obj_p,
property_name_p,
property_desc_p,
is_throw);
}
case ECMA_OBJECT_TYPE_ARRAY:
{
return ecma_op_array_object_define_own_property (obj_p,
property_name_p,
property_desc_p,
is_throw);
}
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
return ecma_op_arguments_object_define_own_property (obj_p,
property_name_p,
property_desc_p,
is_throw);
}
}
JERRY_ASSERT (false);
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
} /* ecma_op_object_define_own_property */
/**
* [[HasInstance]] ecma object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 9
*/
ecma_value_t
ecma_op_object_has_instance (ecma_object_t *obj_p, /**< the object */
ecma_value_t value) /**< argument 'V' */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
switch (type)
{
case ECMA_OBJECT_TYPE_ARRAY:
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_STRING:
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
return ecma_raise_type_error (ECMA_ERR_MSG (""));
}
case ECMA_OBJECT_TYPE_FUNCTION:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
{
return ecma_op_function_has_instance (obj_p, value);
}
}
JERRY_UNREACHABLE ();
} /* ecma_op_object_has_instance */
/**
* Object's isPrototypeOf operation
*
* See also:
* ECMA-262 v5, 15.2.4.6; 3
*
* @return true if the target object is prototype of the base object
* false if the target object is not prototype of the base object
*/
bool
ecma_op_object_is_prototype_of (ecma_object_t *base_p, /**< base object */
ecma_object_t *target_p) /**< target object */
{
do
{
target_p = ecma_get_object_prototype (target_p);
if (target_p == NULL)
{
return false;
}
else if (target_p == base_p)
{
return true;
}
} while (true);
} /* ecma_op_object_is_prototype_of */
/**
* Get collection of property names
*
* Order of names in the collection:
* - integer indices in ascending order
* - other indices in creation order (for built-ins - in the order the properties are listed in specification).
*
* Note:
* Implementation of the routine assumes that new properties are appended to beginning of corresponding object's
* property list, and the list is not reordered (in other words, properties are stored in order that is reversed
* to the properties' addition order).
*
* @return collection of strings - property names
*/
ecma_collection_header_t *
ecma_op_object_get_property_names (ecma_object_t *obj_p, /**< object */
bool is_array_indices_only, /**< true - exclude properties with names
* that are not indices */
bool is_enumerable_only, /**< true - exclude non-enumerable properties */
bool is_with_prototype_chain) /**< true - list properties from prototype chain,
* false - list only own properties */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
ecma_collection_header_t *ret_p = ecma_new_strings_collection (NULL, 0);
ecma_collection_header_t *skipped_non_enumerable_p = ecma_new_strings_collection (NULL, 0);
const ecma_object_type_t type = ecma_get_object_type (obj_p);
ecma_assert_object_type_is_valid (type);
const size_t bitmap_row_size = sizeof (uint32_t) * JERRY_BITSINBYTE;
uint32_t names_hashes_bitmap[(1u << LIT_STRING_HASH_BITS) / bitmap_row_size];
memset (names_hashes_bitmap, 0, sizeof (names_hashes_bitmap));
for (ecma_object_t *prototype_chain_iter_p = obj_p;
prototype_chain_iter_p != NULL;
prototype_chain_iter_p = is_with_prototype_chain ? ecma_get_object_prototype (prototype_chain_iter_p)
: NULL)
{
ecma_length_t string_named_properties_count = 0;
ecma_length_t array_index_named_properties_count = 0;
ecma_collection_header_t *prop_names_p = ecma_new_strings_collection (NULL, 0);
if (ecma_get_object_is_builtin (obj_p))
{
ecma_builtin_list_lazy_property_names (obj_p,
is_enumerable_only,
prop_names_p,
skipped_non_enumerable_p);
}
else
{
switch (type)
{
case ECMA_OBJECT_TYPE_FUNCTION:
{
ecma_op_function_list_lazy_property_names (is_enumerable_only,
prop_names_p,
skipped_non_enumerable_p);
break;
}
case ECMA_OBJECT_TYPE_STRING:
{
ecma_op_string_list_lazy_property_names (obj_p,
is_enumerable_only,
prop_names_p,
skipped_non_enumerable_p);
break;
}
case ECMA_OBJECT_TYPE_ARRAY:
case ECMA_OBJECT_TYPE_GENERAL:
case ECMA_OBJECT_TYPE_ARGUMENTS:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
{
break;
}
}
}
ecma_collection_iterator_t iter;
ecma_collection_iterator_init (&iter, prop_names_p);
uint32_t own_names_hashes_bitmap[(1u << LIT_STRING_HASH_BITS) / bitmap_row_size];
memset (own_names_hashes_bitmap, 0, sizeof (own_names_hashes_bitmap));
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *name_p = ecma_get_string_from_value (*iter.current_value_p);
lit_string_hash_t hash = name_p->hash;
uint32_t bitmap_row = (uint32_t) (hash / bitmap_row_size);
uint32_t bitmap_column = (uint32_t) (hash % bitmap_row_size);
if ((own_names_hashes_bitmap[bitmap_row] & (1u << bitmap_column)) == 0)
{
own_names_hashes_bitmap[bitmap_row] |= (1u << bitmap_column);
}
}
ecma_property_header_t *prop_iter_p = ecma_get_property_list (prototype_chain_iter_p);
while (prop_iter_p != NULL)
{
JERRY_ASSERT (ECMA_PROPERTY_IS_PROPERTY_PAIR (prop_iter_p));
for (int i = 0; i < ECMA_PROPERTY_PAIR_ITEM_COUNT; i++)
{
ecma_property_t *property_p = prop_iter_p->types + i;
if (ECMA_PROPERTY_GET_TYPE (property_p) == ECMA_PROPERTY_TYPE_NAMEDDATA
|| ECMA_PROPERTY_GET_TYPE (property_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR)
{
ecma_property_pair_t *prop_pair_p = (ecma_property_pair_t *) prop_iter_p;
ecma_string_t *name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t, prop_pair_p->names_cp[i]);
if (!(is_enumerable_only && !ecma_is_property_enumerable (property_p)))
{
lit_string_hash_t hash = name_p->hash;
uint32_t bitmap_row = (uint32_t) (hash / bitmap_row_size);
uint32_t bitmap_column = (uint32_t) (hash % bitmap_row_size);
bool is_add = true;
if ((own_names_hashes_bitmap[bitmap_row] & (1u << bitmap_column)) != 0)
{
ecma_collection_iterator_init (&iter, prop_names_p);
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *name2_p = ecma_get_string_from_value (*iter.current_value_p);
if (ecma_compare_ecma_strings (name_p, name2_p))
{
is_add = false;
break;
}
}
}
if (is_add)
{
own_names_hashes_bitmap[bitmap_row] |= (1u << bitmap_column);
ecma_append_to_values_collection (prop_names_p,
ecma_make_string_value (name_p),
true);
}
}
else
{
JERRY_ASSERT (is_enumerable_only && !ecma_is_property_enumerable (property_p));
ecma_append_to_values_collection (skipped_non_enumerable_p,
ecma_make_string_value (name_p),
true);
lit_string_hash_t hash = name_p->hash;
uint32_t bitmap_row = (uint32_t) (hash / bitmap_row_size);
uint32_t bitmap_column = (uint32_t) (hash % bitmap_row_size);
if ((names_hashes_bitmap[bitmap_row] & (1u << bitmap_column)) == 0)
{
names_hashes_bitmap[bitmap_row] |= (1u << bitmap_column);
}
}
}
}
prop_iter_p = ECMA_GET_POINTER (ecma_property_header_t,
prop_iter_p->next_property_cp);
}
ecma_collection_iterator_init (&iter, prop_names_p);
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *name_p = ecma_get_string_from_value (*iter.current_value_p);
uint32_t index;
if (ecma_string_get_array_index (name_p, &index))
{
/* name_p is a valid array index */
array_index_named_properties_count++;
}
else if (!is_array_indices_only)
{
string_named_properties_count++;
}
}
/* Second pass: collecting properties names into arrays */
MEM_DEFINE_LOCAL_ARRAY (names_p,
array_index_named_properties_count + string_named_properties_count,
ecma_string_t *);
MEM_DEFINE_LOCAL_ARRAY (array_index_names_p, array_index_named_properties_count, uint32_t);
uint32_t name_pos = array_index_named_properties_count + string_named_properties_count;
uint32_t array_index_name_pos = 0;
ecma_collection_iterator_init (&iter, prop_names_p);
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *name_p = ecma_get_string_from_value (*iter.current_value_p);
uint32_t index;
if (ecma_string_get_array_index (name_p, &index))
{
JERRY_ASSERT (array_index_name_pos < array_index_named_properties_count);
uint32_t insertion_pos = 0;
while (insertion_pos < array_index_name_pos
&& index < array_index_names_p[insertion_pos])
{
insertion_pos++;
}
if (insertion_pos == array_index_name_pos)
{
array_index_names_p[array_index_name_pos++] = index;
}
else
{
JERRY_ASSERT (insertion_pos < array_index_name_pos);
JERRY_ASSERT (index >= array_index_names_p[insertion_pos]);
uint32_t move_pos = array_index_name_pos++;
while (move_pos > insertion_pos)
{
array_index_names_p[move_pos] = array_index_names_p[move_pos - 1u];
move_pos--;
}
array_index_names_p[insertion_pos] = index;
}
}
else if (!is_array_indices_only)
{
/*
* Filling from end to begin, as list of object's properties is sorted
* in order that is reverse to properties creation order
*/
JERRY_ASSERT (name_pos > 0
&& name_pos <= array_index_named_properties_count + string_named_properties_count);
names_p[--name_pos] = ecma_copy_or_ref_ecma_string (name_p);
}
}
for (uint32_t i = 0; i < array_index_named_properties_count; i++)
{
JERRY_ASSERT (name_pos > 0
&& name_pos <= array_index_named_properties_count + string_named_properties_count);
names_p[--name_pos] = ecma_new_ecma_string_from_uint32 (array_index_names_p[i]);
}
JERRY_ASSERT (name_pos == 0);
MEM_FINALIZE_LOCAL_ARRAY (array_index_names_p);
ecma_free_values_collection (prop_names_p, true);
/* Third pass:
* embedding own property names of current object of prototype chain to aggregate property names collection */
for (uint32_t i = 0;
i < array_index_named_properties_count + string_named_properties_count;
i++)
{
bool is_append;
ecma_string_t *name_p = names_p[i];
lit_string_hash_t hash = name_p->hash;
uint32_t bitmap_row = (uint32_t) (hash / bitmap_row_size);
uint32_t bitmap_column = (uint32_t) (hash % bitmap_row_size);
if ((names_hashes_bitmap[bitmap_row] & (1u << bitmap_column)) == 0)
{
/* no name with the hash is in constructed collection */
is_append = true;
names_hashes_bitmap[bitmap_row] |= (1u << bitmap_column);
}
else
{
/* name with same hash already occured */
bool is_equal_found = false;
ecma_collection_iterator_t iter;
ecma_collection_iterator_init (&iter, ret_p);
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *iter_name_p = ecma_get_string_from_value (*iter.current_value_p);
if (ecma_compare_ecma_strings (name_p, iter_name_p))
{
is_equal_found = true;
}
}
ecma_collection_iterator_init (&iter, skipped_non_enumerable_p);
while (ecma_collection_iterator_next (&iter))
{
ecma_string_t *iter_name_p = ecma_get_string_from_value (*iter.current_value_p);
if (ecma_compare_ecma_strings (name_p, iter_name_p))
{
is_equal_found = true;
}
}
is_append = !is_equal_found;
}
if (is_append)
{
JERRY_ASSERT ((names_hashes_bitmap[bitmap_row] & (1u << bitmap_column)) != 0);
ecma_append_to_values_collection (ret_p, ecma_make_string_value (names_p[i]), true);
}
ecma_deref_ecma_string (name_p);
}
MEM_FINALIZE_LOCAL_ARRAY (names_p);
}
ecma_free_values_collection (skipped_non_enumerable_p, true);
return ret_p;
} /* ecma_op_object_get_property_names */
/**
* Get [[Class]] string of specified object
*
* @return class name magic string
*/
lit_magic_string_id_t
ecma_object_get_class_name (ecma_object_t *obj_p) /**< object */
{
ecma_object_type_t type = ecma_get_object_type (obj_p);
switch (type)
{
case ECMA_OBJECT_TYPE_ARRAY:
{
return LIT_MAGIC_STRING_ARRAY_UL;
}
case ECMA_OBJECT_TYPE_STRING:
{
return LIT_MAGIC_STRING_STRING_UL;
}
case ECMA_OBJECT_TYPE_ARGUMENTS:
{
return LIT_MAGIC_STRING_ARGUMENTS_UL;
}
case ECMA_OBJECT_TYPE_FUNCTION:
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
{
return LIT_MAGIC_STRING_FUNCTION_UL;
}
default:
{
JERRY_ASSERT (type == ECMA_OBJECT_TYPE_GENERAL);
if (ecma_get_object_is_builtin (obj_p))
{
ecma_property_t *built_in_id_prop_p = ecma_get_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_BUILT_IN_ID);
ecma_builtin_id_t builtin_id = (ecma_builtin_id_t) ECMA_PROPERTY_VALUE_PTR (built_in_id_prop_p)->value;
switch (builtin_id)
{
case ECMA_BUILTIN_ID_OBJECT_PROTOTYPE:
{
return LIT_MAGIC_STRING_OBJECT_UL;
}
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_STRING_BUILTIN
case ECMA_BUILTIN_ID_STRING_PROTOTYPE:
{
return LIT_MAGIC_STRING_STRING_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_STRING_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN
case ECMA_BUILTIN_ID_BOOLEAN_PROTOTYPE:
{
return LIT_MAGIC_STRING_BOOLEAN_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN
case ECMA_BUILTIN_ID_NUMBER_PROTOTYPE:
{
return LIT_MAGIC_STRING_NUMBER_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_MATH_BUILTIN
case ECMA_BUILTIN_ID_MATH:
{
return LIT_MAGIC_STRING_MATH_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_MATH_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_JSON_BUILTIN
case ECMA_BUILTIN_ID_JSON:
{
return LIT_MAGIC_STRING_JSON_U;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_JSON_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ERROR_BUILTINS
case ECMA_BUILTIN_ID_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_EVAL_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_RANGE_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_REFERENCE_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_SYNTAX_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_TYPE_ERROR_PROTOTYPE:
case ECMA_BUILTIN_ID_URI_ERROR_PROTOTYPE:
{
return LIT_MAGIC_STRING_ERROR_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ERROR_BUILTINS */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_DATE_BUILTIN
case ECMA_BUILTIN_ID_DATE_PROTOTYPE:
{
return LIT_MAGIC_STRING_DATE_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_DATE_BUILTIN */
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_REGEXP_BUILTIN
case ECMA_BUILTIN_ID_REGEXP_PROTOTYPE:
{
return LIT_MAGIC_STRING_REGEXP_UL;
}
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_REGEXP_BUILTIN */
default:
{
JERRY_ASSERT (ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_GLOBAL));
return LIT_MAGIC_STRING_OBJECT_UL;
}
}
}
else
{
ecma_property_t *class_name_prop_p = ecma_find_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_CLASS);
if (class_name_prop_p == NULL)
{
return LIT_MAGIC_STRING_OBJECT_UL;
}
else
{
return ECMA_PROPERTY_VALUE_PTR (class_name_prop_p)->value;
}
}
}
}
} /* ecma_object_get_class_name */
/**
* @}
* @}
*/
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