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Implementing API for associating native handle (uintptr_t) values with JS objects.

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This commit is contained in:
Ruben Ayrapetyan
2015-04-06 15:38:26 +03:00
parent fc2dbf3b0b
commit 469ef4e622
9 changed files with 115 additions and 22 deletions
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jerry-core/ecma/base/ecma-helpers-external-pointers.cpp
+50 -14
View File
@@ -29,17 +29,35 @@
*
* Note:
* property identifier should be one of the following:
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE;
* - ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE.
*
* @return true - if property was just created with specified value,
* false - otherwise, if property existed before the call, it's value was updated.
*/
void
bool
ecma_create_external_pointer_property (ecma_object_t *obj_p, /**< object to create property in */
ecma_internal_property_id_t id, /**< identifier of internal
* property to create */
ecma_external_pointer_t ptr_value) /**< value to store in the property */
{
JERRY_ASSERT (id == ECMA_INTERNAL_PROPERTY_NATIVE_CODE);
JERRY_ASSERT (id == ECMA_INTERNAL_PROPERTY_NATIVE_CODE
|| id == ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE);
bool ret_val;
ecma_property_t *prop_p = ecma_find_internal_property (obj_p, id);
if (prop_p == NULL)
{
prop_p = ecma_create_internal_property (obj_p, id);
ret_val = true;
}
else
{
ret_val = false;
}
ecma_property_t *prop_p = ecma_create_internal_property (obj_p, id);
JERRY_STATIC_ASSERT (sizeof (uint32_t) <= sizeof (prop_p->u.internal_property.value));
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
@@ -53,6 +71,8 @@ ecma_create_external_pointer_property (ecma_object_t *obj_p, /**< object to crea
ECMA_SET_NON_NULL_POINTER (prop_p->u.internal_property.value, handler_p);
}
return ret_val;
} /* ecma_create_external_pointer_property */
/**
@@ -60,30 +80,44 @@ ecma_create_external_pointer_property (ecma_object_t *obj_p, /**< object to crea
*
* Note:
* property identifier should be one of the following:
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE;
* - ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE.
*
* @return value of the external pointer
* @return true - if property exists and it's value is returned through out_pointer_p,
* false - otherwise (value returned through out_pointer_p is NULL).
*/
ecma_external_pointer_t
bool
ecma_get_external_pointer_value (ecma_object_t *obj_p, /**< object to get property value from */
ecma_internal_property_id_t id) /**< identifier of internal property
ecma_internal_property_id_t id, /**< identifier of internal property
* to get value from */
ecma_external_pointer_t *out_pointer_p) /**< out: value of the external pointer */
{
JERRY_ASSERT (id == ECMA_INTERNAL_PROPERTY_NATIVE_CODE);
JERRY_ASSERT (id == ECMA_INTERNAL_PROPERTY_NATIVE_CODE
|| id == ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE);
ecma_property_t* prop_p = ecma_find_internal_property (obj_p, id);
if (prop_p == NULL)
{
*out_pointer_p = (ecma_external_pointer_t) NULL;
return false;
}
ecma_property_t* prop_p = ecma_get_internal_property (obj_p, id);
JERRY_STATIC_ASSERT (sizeof (uint32_t) <= sizeof (prop_p->u.internal_property.value));
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
{
return (ecma_external_pointer_t) prop_p->u.internal_property.value;
*out_pointer_p = (ecma_external_pointer_t) prop_p->u.internal_property.value;
}
else
{
ecma_external_pointer_t *handler_p = ECMA_GET_NON_NULL_POINTER (ecma_external_pointer_t,
prop_p->u.internal_property.value);
return *handler_p;
*out_pointer_p = *handler_p;
}
return true;
} /* ecma_get_external_pointer_value */
/**
@@ -91,12 +125,14 @@ ecma_get_external_pointer_value (ecma_object_t *obj_p, /**< object to get proper
*
* Note:
* property identifier should be one of the following:
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE
* - ECMA_INTERNAL_PROPERTY_NATIVE_CODE;
* - ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE.
*/
void
ecma_free_external_pointer_in_property (ecma_property_t *prop_p) /**< internal property */
{
JERRY_ASSERT (prop_p->u.internal_property.type == ECMA_INTERNAL_PROPERTY_NATIVE_CODE);
JERRY_ASSERT (prop_p->u.internal_property.type == ECMA_INTERNAL_PROPERTY_NATIVE_CODE
|| prop_p->u.internal_property.type == ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE);
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
{