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https://github.com/jerryscript-project/jerryscript.git
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0a40f55e5f
Native handle and pointer are moved to internal properties. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
99 lines
3.1 KiB
C
99 lines
3.1 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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#include "ecma-alloc.h"
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#include "ecma-globals.h"
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#include "ecma-helpers.h"
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/** \addtogroup ecma ECMA
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* @{
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*
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* \addtogroup ecmahelpers Helpers for operations with ECMA data types
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* @{
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*/
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/**
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* Create a native pointer property to store the native pointer and its type info.
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*
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* @return true - if property was just created with specified value,
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* false - otherwise, if property existed before the call, it's value was updated
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*/
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bool
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ecma_create_native_pointer_property (ecma_object_t *obj_p, /**< object to create property in */
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void *native_p, /**< native pointer */
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void *info_p) /**< native pointer's type info */
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{
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ecma_string_t *name_p = ecma_get_magic_string (LIT_INTERNAL_MAGIC_STRING_NATIVE_POINTER);
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ecma_property_t *property_p = ecma_find_named_property (obj_p, name_p);
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bool is_new = (property_p == NULL);
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ecma_native_pointer_t *native_pointer_p;
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if (is_new)
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{
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ecma_property_value_t *value_p;
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value_p = ecma_create_named_data_property (obj_p, name_p, ECMA_PROPERTY_FLAG_WRITABLE, &property_p);
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ECMA_CONVERT_DATA_PROPERTY_TO_INTERNAL_PROPERTY (property_p);
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native_pointer_p = jmem_heap_alloc_block (sizeof (ecma_native_pointer_t));
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ECMA_SET_INTERNAL_VALUE_POINTER (value_p->value, native_pointer_p);
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}
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else
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{
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ecma_property_value_t *value_p = ECMA_PROPERTY_VALUE_PTR (property_p);
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native_pointer_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_native_pointer_t, value_p->value);
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}
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native_pointer_p->data_p = native_p;
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native_pointer_p->info_p = info_p;
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return is_new;
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} /* ecma_create_native_pointer_property */
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/**
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* Get value of native package stored in the object's property with specified identifier
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*
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* Note:
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* property identifier should be one of the following:
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* - LIT_INTERNAL_MAGIC_STRING_NATIVE_POINTER
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*
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* @return native pointer data if property exists
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* NULL otherwise
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*/
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ecma_native_pointer_t *
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ecma_get_native_pointer_value (ecma_object_t *obj_p) /**< object to get property value from */
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{
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ecma_string_t *name_p = ecma_get_magic_string (LIT_INTERNAL_MAGIC_STRING_NATIVE_POINTER);
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ecma_property_t *property_p = ecma_find_named_property (obj_p, name_p);
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if (property_p == NULL)
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{
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return NULL;
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}
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ecma_property_value_t *value_p = ECMA_PROPERTY_VALUE_PTR (property_p);
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return ECMA_GET_INTERNAL_VALUE_POINTER (ecma_native_pointer_t, value_p->value);
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} /* ecma_get_native_pointer_value */
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/**
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* @}
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* @}
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*/
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