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Continue working on realms (#4356)

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- Rework symbols to have the same value across realms
- Support realms for native functions
- Support test262
- Use new.target realms for constructing intrinsics

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-12-09 17:44:21 +01:00
committed by GitHub
parent df92c86ecf
commit cc1e8d2dee
23 changed files with 593 additions and 284 deletions
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jerry-core/ecma/operations/ecma-objects.c
+46 -4
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@@ -882,6 +882,29 @@ ecma_op_object_get_by_magic_id (ecma_object_t *object_p, /**< the object */
} /* ecma_op_object_get_by_magic_id */
#if ENABLED (JERRY_ESNEXT)
/**
* Descriptor string for each global symbol
*/
static const uint16_t ecma_global_symbol_descriptions[] =
{
LIT_MAGIC_STRING_ASYNC_ITERATOR,
LIT_MAGIC_STRING_HAS_INSTANCE,
LIT_MAGIC_STRING_IS_CONCAT_SPREADABLE,
LIT_MAGIC_STRING_ITERATOR,
LIT_MAGIC_STRING_MATCH,
LIT_MAGIC_STRING_REPLACE,
LIT_MAGIC_STRING_SEARCH,
LIT_MAGIC_STRING_SPECIES,
LIT_MAGIC_STRING_SPLIT,
LIT_MAGIC_STRING_TO_PRIMITIVE,
LIT_MAGIC_STRING_TO_STRING_TAG,
LIT_MAGIC_STRING_UNSCOPABLES
};
JERRY_STATIC_ASSERT (sizeof (ecma_global_symbol_descriptions) / sizeof (uint16_t) == ECMA_BUILTIN_GLOBAL_SYMBOL_COUNT,
ecma_global_symbol_descriptions_must_have_global_symbol_count_elements);
/**
* [[Get]] a well-known symbol by the given property id
*
@@ -890,11 +913,30 @@ ecma_op_object_get_by_magic_id (ecma_object_t *object_p, /**< the object */
ecma_string_t *
ecma_op_get_global_symbol (lit_magic_string_id_t property_id) /**< property symbol id */
{
ecma_value_t symbol_value = ecma_op_object_get_by_magic_id (ecma_builtin_get (ECMA_BUILTIN_ID_INTRINSIC_OBJECT),
property_id);
JERRY_ASSERT (ecma_is_value_symbol (symbol_value));
JERRY_ASSERT (LIT_IS_GLOBAL_SYMBOL (property_id));
return ecma_get_symbol_from_value (symbol_value);
uint32_t symbol_index = (uint32_t) property_id - (uint32_t) LIT_GLOBAL_SYMBOL__FIRST;
jmem_cpointer_t symbol_cp = JERRY_CONTEXT (global_symbols_cp)[symbol_index];
if (symbol_cp != JMEM_CP_NULL)
{
ecma_string_t *symbol_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t, symbol_cp);
ecma_ref_ecma_string (symbol_p);
return symbol_p;
}
ecma_string_t *symbol_dot_p = ecma_get_magic_string (LIT_MAGIC_STRING_SYMBOL_DOT_UL);
uint16_t description = ecma_global_symbol_descriptions[symbol_index];
ecma_string_t *name_p = ecma_get_magic_string ((lit_magic_string_id_t) description);
ecma_string_t *descriptor_p = ecma_concat_ecma_strings (symbol_dot_p, name_p);
ecma_string_t *symbol_p = ecma_new_symbol_from_descriptor_string (ecma_make_string_value (descriptor_p));
symbol_p->u.hash = (uint16_t) ((property_id << ECMA_GLOBAL_SYMBOL_SHIFT) | ECMA_GLOBAL_SYMBOL_FLAG);
ECMA_SET_NON_NULL_POINTER (JERRY_CONTEXT (global_symbols_cp)[symbol_index], symbol_p);
ecma_ref_ecma_string (symbol_p);
return symbol_p;
} /* ecma_op_get_global_symbol */
/**