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Implement IsRegExp operation (#3321)

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Algorithm is based on ECMA-262 v6, 22.1.3.1.1

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2019-11-20 11:50:26 +01:00
committed by Robert Fancsik
parent bd0cb33172
commit c31452c138
12 changed files with 233 additions and 38 deletions
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jerry-core/ecma/operations/ecma-objects.c
+47
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@@ -2475,6 +2475,19 @@ ecma_object_class_is (ecma_object_t *object_p, /**< object */
return false;
} /* ecma_object_class_is */
/**
* Checks if the given argument has [[RegExpMatcher]] internal slot
*
* @return true - if the given argument is a regexp
* false - otherwise
*/
inline bool JERRY_ATTR_ALWAYS_INLINE
ecma_object_is_regexp_object (ecma_value_t arg) /**< argument */
{
return (ecma_is_value_object (arg)
&& ecma_object_class_is (ecma_get_object_from_value (arg), LIT_MAGIC_STRING_REGEXP_UL));
} /* ecma_object_is_regexp_object */
#if ENABLED (JERRY_ES2015)
/**
* Object's IsConcatSpreadable operation, used for Array.prototype.concat
@@ -2510,6 +2523,40 @@ ecma_op_is_concat_spreadable (ecma_value_t arg) /**< argument */
return (ecma_make_boolean_value (ecma_is_value_array (arg)));
} /* ecma_op_is_concat_spreadable */
/**
* IsRegExp operation
*
* See also:
* ECMA-262 v6, 22.1.3.1.1;
*
* @return ECMA_VALUE_ERROR - if the operation fails
* ECMA_VALUE_TRUE - if the argument is regexp
* ECMA_VALUE_FALSE - otherwise
*/
ecma_value_t
ecma_op_is_regexp (ecma_value_t arg) /**< argument */
{
if (!ecma_is_value_object (arg))
{
return ECMA_VALUE_FALSE;
}
ecma_value_t is_regexp = ecma_op_object_get_by_symbol_id (ecma_get_object_from_value (arg),
LIT_MAGIC_STRING_MATCH);
if (ECMA_IS_VALUE_ERROR (is_regexp))
{
return is_regexp;
}
if (!ecma_is_value_undefined (is_regexp))
{
return ecma_make_boolean_value (ecma_op_to_boolean (is_regexp));
}
return ecma_make_boolean_value (ecma_object_is_regexp_object (arg));
} /* ecma_op_is_regexp */
#endif /* ENABLED (JERRY_ES2015) */
/**