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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
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jerry-core/ecma/builtin-objects/ecma-builtins.c
+1 -3
View File
@@ -761,9 +761,7 @@ ecma_builtin_list_lazy_property_names (ecma_object_t *object_p, /**< a built-in
if (!(*bitset_p & bit_for_index) || ecma_op_object_has_own_property (object_p, name_p))
{
ecma_append_to_values_collection (for_non_enumerable_p,
ecma_make_string_value (name_p),
0);
ecma_append_to_values_collection (for_non_enumerable_p, ecma_make_string_value (name_p), 0);
}
ecma_deref_ecma_string (name_p);
jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c
+4 -3
View File
@@ -736,11 +736,10 @@ ecma_builtin_typedarray_prototype_set (ecma_value_t this_arg, /**< this argument
while (k < source_length_uint32 && ecma_is_value_empty (ret_val))
{
ecma_string_t k_str;
ecma_init_ecma_string_from_uint32 (&k_str, k);
ecma_string_t *k_str_p = ecma_new_ecma_string_from_uint32 (k);
ECMA_TRY_CATCH (elem,
ecma_op_object_get (source_obj_p, &k_str),
ecma_op_object_get (source_obj_p, k_str_p),
ret_val);
ECMA_OP_TO_NUMBER_TRY_CATCH (elem_num, elem, ret_val);
@@ -750,6 +749,8 @@ ecma_builtin_typedarray_prototype_set (ecma_value_t this_arg, /**< this argument
ECMA_OP_TO_NUMBER_FINALIZE (elem_num);
ECMA_FINALIZE (elem);
ecma_deref_ecma_string (k_str_p);
k++;
target_byte_index += element_size;
}