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Implement direct strings. (#2196)

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Direct strings are a new type of direct ecma-values (no memory allocation
is needed for encoding them) in JerryScript. Currently magic strings,
external magic strings and uint values are encoded as direct strings.

The constant pool of JerryScript byte-code is changed to hold ecma-values
rather than cpointers to support direct strings.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2018-02-23 00:21:46 +01:00
committed by yichoi
parent fbf5c32747
commit 51e3c4455a
37 changed files with 1493 additions and 1148 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/ecma/base/ecma-gc.c
+6 -6
View File
@@ -157,7 +157,7 @@ ecma_gc_mark_property (ecma_property_pair_t *property_pair_p, /**< property pair
{
case ECMA_PROPERTY_TYPE_NAMEDDATA:
{
if (ECMA_PROPERTY_GET_NAME_TYPE (property) == ECMA_STRING_CONTAINER_MAGIC_STRING
if (ECMA_PROPERTY_GET_NAME_TYPE (property) == ECMA_DIRECT_STRING_MAGIC
&& property_pair_p->names_cp[index] >= LIT_NEED_MARK_MAGIC_STRING__COUNT)
{
break;
@@ -478,7 +478,7 @@ ecma_gc_free_object (ecma_object_t *object_p) /**< object to free */
jmem_cpointer_t name_cp = prop_pair_p->names_cp[i];
/* Call the native's free callback. */
if (ECMA_PROPERTY_GET_NAME_TYPE (*property_p) == ECMA_STRING_CONTAINER_MAGIC_STRING
if (ECMA_PROPERTY_GET_NAME_TYPE (*property_p) == ECMA_DIRECT_STRING_MAGIC
&& (name_cp == LIT_INTERNAL_MAGIC_STRING_NATIVE_HANDLE
|| name_cp == LIT_INTERNAL_MAGIC_STRING_NATIVE_POINTER))
{
@@ -666,18 +666,18 @@ ecma_gc_free_object (ecma_object_t *object_p) /**< object to free */
case ECMA_PSEUDO_ARRAY_ARGUMENTS:
{
ecma_length_t formal_params_number = ext_object_p->u.pseudo_array.u1.length;
jmem_cpointer_t *arg_Literal_p = (jmem_cpointer_t *) (ext_object_p + 1);
ecma_value_t *arg_Literal_p = (ecma_value_t *) (ext_object_p + 1);
for (ecma_length_t i = 0; i < formal_params_number; i++)
{
if (arg_Literal_p[i] != JMEM_CP_NULL)
if (arg_Literal_p[i] != ECMA_VALUE_EMPTY)
{
ecma_string_t *name_p = JMEM_CP_GET_NON_NULL_POINTER (ecma_string_t, arg_Literal_p[i]);
ecma_string_t *name_p = ecma_get_string_from_value (arg_Literal_p[i]);
ecma_deref_ecma_string (name_p);
}
}
size_t formal_params_size = formal_params_number * sizeof (jmem_cpointer_t);
size_t formal_params_size = formal_params_number * sizeof (ecma_value_t);
ecma_dealloc_extended_object (object_p, sizeof (ecma_extended_object_t) + formal_params_size);
return;
}