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f0f2a28109
Note: TypedArray.[[DefineOwnProperty]] has been slightly reworked (without semantical changes) for better error messages. JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
133 lines
4.0 KiB
C
133 lines
4.0 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMA_ARRAY_OBJECT_H
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#define ECMA_ARRAY_OBJECT_H
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#include "ecma-globals.h"
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/** \addtogroup ecma ECMA
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* @{
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*
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* \addtogroup ecmaarrayobject ECMA Array object related routines
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* @{
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*/
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/**
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* Attributes of fast access mode arrays:
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*
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* - The internal property is replaced with a buffer which directly stores the values
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* - Whenever any operation would change the following attributes of the array it should be converted back to normal
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* - All properties must be enumerable configurable writable data properties
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* - The prototype must be Array.prototype
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* - [[Extensible]] internal property must be true
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* - 'length' property of the array must be writable
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*
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* - The conversion is also required when a property is set if:
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* - The property name is not an array index
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* - The new hole count of the array would reach ECMA_FAST_ARRAY_MAX_NEW_HOLES_COUNT
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*/
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/**
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* Maximum number of new array holes in a fast mode access array.
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* If the number of new holes exceeds this limit, the array is converted back
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* to normal property list based array.
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*/
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#define ECMA_FAST_ARRAY_MAX_NEW_HOLES_COUNT 32
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/**
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* Bitshift index for fast array hole count representation
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*/
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#define ECMA_FAST_ARRAY_HOLE_SHIFT 8
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/**
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* This number represents 1 array hole in underlying buffer of a fast acces mode array
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*/
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#define ECMA_FAST_ARRAY_HOLE_ONE (1 << ECMA_FAST_ARRAY_HOLE_SHIFT)
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/**
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* Maximum number of array holes in a fast access mode array
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*/
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#define ECMA_FAST_ARRAY_MAX_HOLE_COUNT (1 << 24)
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ecma_object_t *
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ecma_op_new_array_object (uint32_t length);
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ecma_object_t *
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ecma_op_new_array_object_from_length (ecma_length_t length);
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ecma_value_t
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ecma_op_new_array_object_from_buffer (const ecma_value_t *args_p, uint32_t length);
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ecma_value_t
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ecma_op_new_array_object_from_collection (ecma_collection_t *collection_p, bool unref_objects);
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bool
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ecma_op_object_is_fast_array (ecma_object_t *object_p);
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bool
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ecma_op_array_is_fast_array (ecma_extended_object_t *array_p);
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uint32_t
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ecma_fast_array_get_hole_count (ecma_object_t *obj_p);
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ecma_value_t *
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ecma_fast_array_extend (ecma_object_t *object_p, uint32_t new_lengt);
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bool
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ecma_fast_array_set_property (ecma_object_t *object_p, uint32_t index, ecma_value_t value);
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void
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ecma_array_object_delete_property (ecma_object_t *object_p, ecma_string_t *property_name_p,
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ecma_property_value_t *prop_value_p);
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uint32_t
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ecma_delete_fast_array_properties (ecma_object_t *object_p, uint32_t new_length);
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ecma_collection_t *
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ecma_fast_array_object_own_property_keys (ecma_object_t *object_p);
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void
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ecma_fast_array_convert_to_normal (ecma_object_t *object_p);
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#if JERRY_ESNEXT
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ecma_object_t *
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ecma_op_array_species_create (ecma_object_t *original_array_p,
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ecma_length_t length);
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ecma_value_t
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ecma_op_create_array_iterator (ecma_object_t *obj_p,
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ecma_iterator_kind_t kind);
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#endif /* JERRY_ESNEXT */
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ecma_value_t
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ecma_op_array_object_set_length (ecma_object_t *object_p, ecma_value_t new_value, uint16_t flags);
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ecma_value_t
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ecma_op_array_object_define_own_property (ecma_object_t *object_p, ecma_string_t *property_name_p,
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const ecma_property_descriptor_t *property_desc_p);
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uint32_t ecma_array_get_length (ecma_object_t *array_p);
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ecma_value_t
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ecma_array_object_to_string (ecma_value_t this_arg);
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/**
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* @}
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* @}
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*/
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#endif /* !ECMA_ARRAY_OBJECT_H */
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