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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/base/ecma-helpers-external-pointers.c
+10 -10
View File
@@ -61,12 +61,12 @@ ecma_create_external_pointer_property (ecma_object_t *obj_p, /**< object to crea
is_new = false;
}
JERRY_STATIC_ASSERT (sizeof (uint32_t) <= sizeof (prop_p->v.internal_property.value),
JERRY_STATIC_ASSERT (sizeof (uint32_t) <= sizeof (ECMA_PROPERTY_VALUE_PTR (prop_p)->value),
size_of_internal_property_value_must_be_greater_than_or_equal_to_4_bytes);
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
{
prop_p->v.internal_property.value = (uint32_t) ptr_value;
ECMA_PROPERTY_VALUE_PTR (prop_p)->value = (uint32_t) ptr_value;
}
else
{
@@ -76,12 +76,12 @@ ecma_create_external_pointer_property (ecma_object_t *obj_p, /**< object to crea
{
handler_p = ecma_alloc_external_pointer ();
ECMA_SET_NON_NULL_POINTER (prop_p->v.internal_property.value, handler_p);
ECMA_SET_NON_NULL_POINTER (ECMA_PROPERTY_VALUE_PTR (prop_p)->value, handler_p);
}
else
{
handler_p = ECMA_GET_NON_NULL_POINTER (ecma_external_pointer_t,
prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (prop_p)->value);
}
*handler_p = ptr_value;
@@ -123,12 +123,12 @@ ecma_get_external_pointer_value (ecma_object_t *obj_p, /**< object to get proper
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
{
*out_pointer_p = (ecma_external_pointer_t) prop_p->v.internal_property.value;
*out_pointer_p = ECMA_PROPERTY_VALUE_PTR (prop_p)->value;
}
else
{
ecma_external_pointer_t *handler_p = ECMA_GET_NON_NULL_POINTER (ecma_external_pointer_t,
prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (prop_p)->value);
*out_pointer_p = *handler_p;
}
@@ -147,9 +147,9 @@ ecma_get_external_pointer_value (ecma_object_t *obj_p, /**< object to get proper
void
ecma_free_external_pointer_in_property (ecma_property_t *prop_p) /**< internal property */
{
JERRY_ASSERT (prop_p->h.internal_property_type == ECMA_INTERNAL_PROPERTY_NATIVE_CODE
|| prop_p->h.internal_property_type == ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE
|| prop_p->h.internal_property_type == ECMA_INTERNAL_PROPERTY_FREE_CALLBACK);
JERRY_ASSERT (ECMA_PROPERTY_GET_INTERNAL_PROPERTY_TYPE (prop_p) == ECMA_INTERNAL_PROPERTY_NATIVE_CODE
|| ECMA_PROPERTY_GET_INTERNAL_PROPERTY_TYPE (prop_p) == ECMA_INTERNAL_PROPERTY_NATIVE_HANDLE
|| ECMA_PROPERTY_GET_INTERNAL_PROPERTY_TYPE (prop_p) == ECMA_INTERNAL_PROPERTY_FREE_CALLBACK);
if (sizeof (ecma_external_pointer_t) == sizeof (uint32_t))
{
@@ -158,7 +158,7 @@ ecma_free_external_pointer_in_property (ecma_property_t *prop_p) /**< internal p
else
{
ecma_external_pointer_t *handler_p = ECMA_GET_NON_NULL_POINTER (ecma_external_pointer_t,
prop_p->v.internal_property.value);
ECMA_PROPERTY_VALUE_PTR (prop_p)->value);
ecma_dealloc_external_pointer (handler_p);
}