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Refactor object property chain to use property pairs. The patch

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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
This commit is contained in:
Zoltan Herczeg
2016-04-13 23:25:16 -07:00
parent 9aca0086b9
commit c7dcce4fc7
34 changed files with 883 additions and 649 deletions
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jerry-core/ecma/operations/ecma-objects-arguments.c
+9 -9
View File
@@ -84,7 +84,7 @@ ecma_op_create_arguments_object (ecma_object_t *func_obj_p, /**< callee function
// 4.
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
class_prop_p->v.internal_property.value = LIT_MAGIC_STRING_ARGUMENTS_UL;
ECMA_PROPERTY_VALUE_PTR (class_prop_p)->value = LIT_MAGIC_STRING_ARGUMENTS_UL;
// 7.
ecma_string_t *length_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
@@ -174,11 +174,11 @@ ecma_op_create_arguments_object (ecma_object_t *func_obj_p, /**< callee function
ecma_property_t *parameters_map_prop_p = ecma_create_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP);
ECMA_SET_POINTER (parameters_map_prop_p->v.internal_property.value, map_p);
ECMA_SET_POINTER (ECMA_PROPERTY_VALUE_PTR (parameters_map_prop_p)->value, map_p);
ecma_property_t *scope_prop_p = ecma_create_internal_property (map_p,
ECMA_INTERNAL_PROPERTY_SCOPE);
ECMA_SET_POINTER (scope_prop_p->v.internal_property.value, lex_env_p);
ECMA_SET_POINTER (ECMA_PROPERTY_VALUE_PTR (scope_prop_p)->value, lex_env_p);
ecma_deref_object (map_p);
}
@@ -286,7 +286,7 @@ ecma_arguments_get_mapped_arg_value (ecma_object_t *map_p, /**< [[ParametersMap]
{
ecma_property_t *scope_prop_p = ecma_get_internal_property (map_p, ECMA_INTERNAL_PROPERTY_SCOPE);
ecma_object_t *lex_env_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
scope_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (scope_prop_p)->value);
JERRY_ASSERT (lex_env_p != NULL
&& ecma_is_lexical_environment (lex_env_p));
@@ -317,7 +317,7 @@ ecma_op_arguments_object_get (ecma_object_t *obj_p, /**< the object */
// 1.
ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP);
ecma_object_t *map_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
map_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value);
// 2.
ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p);
@@ -363,7 +363,7 @@ ecma_op_arguments_object_get_own_property (ecma_object_t *obj_p, /**< the object
// 3.
ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP);
ecma_object_t *map_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
map_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value);
// 4.
ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p);
@@ -403,7 +403,7 @@ ecma_op_arguments_object_define_own_property (ecma_object_t *obj_p, /**< the obj
// 1.
ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP);
ecma_object_t *map_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
map_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value);
// 2.
ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p);
@@ -444,7 +444,7 @@ ecma_op_arguments_object_define_own_property (ecma_object_t *obj_p, /**< the obj
/* emulating execution of function described by MakeArgSetter */
ecma_property_t *scope_prop_p = ecma_get_internal_property (map_p, ECMA_INTERNAL_PROPERTY_SCOPE);
ecma_object_t *lex_env_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
scope_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (scope_prop_p)->value);
ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p);
ecma_value_t arg_name_prop_value = ecma_get_named_data_property_value (mapped_prop_p);
@@ -501,7 +501,7 @@ ecma_op_arguments_object_delete (ecma_object_t *obj_p, /**< the object */
// 1.
ecma_property_t *map_prop_p = ecma_get_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_PARAMETERS_MAP);
ecma_object_t *map_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t,
map_prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (map_prop_p)->value);
// 2.
ecma_property_t *mapped_prop_p = ecma_op_object_get_own_property (map_p, property_name_p);