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Implement ToPropertyKey operation (#3966)

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From ES 6 the ToPropertyKey operation is used to convert elements to a valid property key.
This "new" method uses the ToPrimitive operation which can call the `@@ToPrimitive`
well-known symbol to convert the given element to a key.

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
This commit is contained in:
Péter Gál
2020-07-06 15:17:18 +02:00
committed by GitHub
parent ed9e3eccf9
commit ae5cfae3e7
10 changed files with 174 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/ecma/builtin-objects/ecma-builtin-object-prototype.c
+1 -1
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@@ -284,7 +284,7 @@ ecma_builtin_object_prototype_dispatch_routine (uint16_t builtin_routine_id, /**
}
#endif /* ENABLED (JERRY_ESNEXT)*/
ecma_string_t *prop_name_p = ecma_op_to_prop_name (arguments_list_p[0]);
ecma_string_t *prop_name_p = ecma_op_to_property_key (arguments_list_p[0]);
if (prop_name_p == NULL)
{
jerry-core/ecma/builtin-objects/ecma-builtin-object.c
+2 -2
View File
@@ -1213,7 +1213,7 @@ ecma_builtin_object_dispatch_routine (uint16_t builtin_routine_id, /**< built-in
if (builtin_routine_id == ECMA_OBJECT_ROUTINE_DEFINE_PROPERTY)
{
ecma_string_t *prop_name_p = ecma_op_to_prop_name (arg2);
ecma_string_t *prop_name_p = ecma_op_to_property_key (arg2);
if (prop_name_p == NULL)
{
@@ -1275,7 +1275,7 @@ ecma_builtin_object_dispatch_routine (uint16_t builtin_routine_id, /**< built-in
}
case ECMA_OBJECT_ROUTINE_GET_OWN_PROPERTY_DESCRIPTOR:
{
ecma_string_t *prop_name_p = ecma_op_to_prop_name (arg2);
ecma_string_t *prop_name_p = ecma_op_to_property_key (arg2);
if (prop_name_p == NULL)
{
jerry-core/ecma/builtin-objects/ecma-builtin-reflect.c
+4 -4
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@@ -96,8 +96,8 @@ ecma_builtin_reflect_dispatch_routine (uint16_t builtin_routine_id, /**< built-i
}
/* 2. */
ecma_string_t *name_str_p = ecma_op_to_prop_name (((arguments_number > 1) ? arguments_list[1]
: ECMA_VALUE_UNDEFINED));
ecma_string_t *name_str_p = ecma_op_to_property_key (((arguments_number > 1) ? arguments_list[1]
: ECMA_VALUE_UNDEFINED));
/* 3. */
if (name_str_p == NULL)
@@ -262,7 +262,7 @@ ecma_builtin_reflect_dispatch_routine (uint16_t builtin_routine_id, /**< built-i
case ECMA_REFLECT_OBJECT_DEFINE_PROPERTY:
{
ecma_object_t *obj_p = ecma_get_object_from_value (arguments_list[0]);
ecma_string_t *name_str_p = ecma_op_to_prop_name (arguments_list[1]);
ecma_string_t *name_str_p = ecma_op_to_property_key (arguments_list[1]);
if (name_str_p == NULL)
{
@@ -297,7 +297,7 @@ ecma_builtin_reflect_dispatch_routine (uint16_t builtin_routine_id, /**< built-i
case ECMA_REFLECT_OBJECT_GET_OWN_PROPERTY_DESCRIPTOR:
{
ecma_object_t *obj_p = ecma_get_object_from_value (arguments_list[0]);
ecma_string_t *name_str_p = ecma_op_to_prop_name (arguments_list[1]);
ecma_string_t *name_str_p = ecma_op_to_property_key (arguments_list[1]);
if (name_str_p == NULL)
{
jerry-core/ecma/operations/ecma-conversion.c
+32 -8
View File
@@ -489,27 +489,51 @@ ecma_op_to_string (ecma_value_t value) /**< ecma value */
} /* ecma_op_to_string */
/**
* ToPropertyName operation.
* ToPropertyKey operation.
*
* See also:
* ECMA 262 v6, 7.1.14
* ECMA 262 v10, 7.1.14
* ECMA 262 v11, 7.1.19
*
* @return NULL - if the conversion fails
* ecma-string - otherwise
*/
ecma_string_t *
ecma_op_to_prop_name (ecma_value_t value) /**< ecma value */
ecma_op_to_property_key (ecma_value_t value) /**< ecma value */
{
ecma_check_value_type_is_spec_defined (value);
/* Fast path for strings and symbols */
if (JERRY_LIKELY (ecma_is_value_prop_name (value)))
{
ecma_string_t *key_p = ecma_get_prop_name_from_value (value);
ecma_ref_ecma_string (key_p);
return key_p;
}
#if ENABLED (JERRY_ESNEXT)
if (ecma_is_value_symbol (value))
ecma_value_t key = ecma_op_to_primitive (value, ECMA_PREFERRED_TYPE_STRING);
if (ECMA_IS_VALUE_ERROR (key))
{
ecma_string_t *symbol_p = ecma_get_symbol_from_value (value);
ecma_ref_ecma_string (symbol_p);
return NULL;
}
if (ecma_is_value_symbol (key))
{
ecma_string_t *symbol_p = ecma_get_symbol_from_value (key);
return symbol_p;
}
#endif /* ENABLED (JERRY_ESNEXT) */
ecma_string_t *result = ecma_op_to_string (key);
ecma_free_value (key);
return result;
#else /* !ENABLED (JERRY_ESNEXT) */
ecma_check_value_type_is_spec_defined (value);
return ecma_op_to_string (value);
} /* ecma_op_to_prop_name */
#endif /* ENABLED (JERRY_ESNEXT) */
} /* ecma_op_to_property_key */
/**
* ToObject operation.
jerry-core/ecma/operations/ecma-conversion.h
+1 -1
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@@ -47,7 +47,7 @@ bool ecma_op_to_boolean (ecma_value_t value);
ecma_value_t ecma_op_to_number (ecma_value_t value);
ecma_value_t ecma_get_number (ecma_value_t value, ecma_number_t *number_p);
ecma_string_t *ecma_op_to_string (ecma_value_t value);
ecma_string_t *ecma_op_to_prop_name (ecma_value_t value);
ecma_string_t *ecma_op_to_property_key (ecma_value_t value);
ecma_value_t ecma_op_to_object (ecma_value_t value);
ecma_value_t ecma_op_to_integer (ecma_value_t value, ecma_number_t *number_p);
ecma_value_t ecma_op_to_length (ecma_value_t value, uint32_t *length);