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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/vm/opcodes.c
+1 -1
View File
@@ -157,7 +157,7 @@ opfunc_set_accessor (bool is_getter, /**< is getter accessor */
ecma_string_t *accessor_name_p = ecma_get_string_from_value (accessor_name);
ecma_property_t *property_p = ecma_find_named_property (object_p, accessor_name_p);
if (property_p != NULL && !(property_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR))
if (property_p != NULL && ECMA_PROPERTY_GET_TYPE (property_p) != ECMA_PROPERTY_TYPE_NAMEDACCESSOR)
{
ecma_delete_property (object_p, property_p);
property_p = NULL;
jerry-core/vm/vm.c
+1 -1
View File
@@ -1013,7 +1013,7 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
property_p = ecma_find_named_property (object_p, prop_name_p);
}
if (property_p != NULL && !(property_p->flags & ECMA_PROPERTY_FLAG_NAMEDDATA))
if (property_p != NULL && ECMA_PROPERTY_GET_TYPE (property_p) != ECMA_PROPERTY_TYPE_NAMEDDATA)
{
ecma_delete_property (object_p, property_p);
property_p = NULL;