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Fixing retrieval of [[Class]] properties for built-in function objects, optimizing memory related to [[Class]] property.

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- introduced ecma_object_get_class_name interface;
 - removed creation of [[Class]] internal property for types of objects that unambiguously determine the [[Class]] value.

Related issue: #112

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-05-28 20:49:55 +03:00
parent bc7c28ce12
commit da7e9d9871
18 changed files with 284 additions and 92 deletions
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jerry-core/ecma/operations/ecma-objects-general.cpp
+8 -7
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@@ -66,8 +66,13 @@ ecma_op_create_object_object_noarg (void)
ecma_deref_object (object_prototype_p);
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
class_prop_p->u.internal_property.value = ECMA_MAGIC_STRING_OBJECT_UL;
/*
* [[Class]] property of ECMA_OBJECT_TYPE_GENERAL type objects
* without ECMA_INTERNAL_PROPERTY_CLASS internal property
* is "Object".
*
* See also: ecma_object_get_class_name
*/
return obj_p;
} /* ecma_op_create_object_object_noarg */
@@ -503,11 +508,7 @@ ecma_op_general_object_default_value (ecma_object_t *obj_p, /**< the object */
if (hint == ECMA_PREFERRED_TYPE_NO)
{
ecma_property_t *class_prop_p = ecma_get_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_CLASS);
ecma_magic_string_id_t obj_class = (ecma_magic_string_id_t) class_prop_p->u.internal_property.value;
if (obj_class == ECMA_MAGIC_STRING_DATE_UL)
if (ecma_object_get_class_name (obj_p) == ECMA_MAGIC_STRING_DATE_UL)
{
hint = ECMA_PREFERRED_TYPE_STRING;
}