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Implementing [[HasInstance]] for non-bound functions.

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This commit is contained in:
Ruben Ayrapetyan 2014-09-19 21:14:14 +04:00
parent 34984d31de
commit e55ceb22f5
3 changed files with 89 additions and 2 deletions
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85
src/libecmaoperations/ecma-function-object.c
View File

@ -429,7 +429,90 @@ ecma_function_call_setup_args_variables (ecma_object_t *func_obj_p, /**< Functio
/**
* [[Call]] implementation for Function objects,
* created through 13.2 (ECMA_OBJECT_TYPE_FUNCTION)
* or 15.3.4.5 (ECMA_OBJECT_TYPE_BOUND_FUNCTION).
* or 15.3.4.5 (ECMA_OBJECT_TYPE_BOUND_FUNCTION),
* and for built-in Function objects
* from section 15 (ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION).
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_function_has_instance (ecma_object_t *func_obj_p, /**< Function object */
ecma_value_t value) /**< argument 'V' */
{
JERRY_ASSERT(func_obj_p != NULL
&& !ecma_is_lexical_environment (func_obj_p));
if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_FUNCTION)
{
if (value.value_type != ECMA_TYPE_OBJECT)
{
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE);
}
ecma_object_t* v_obj_p = ECMA_GET_POINTER (value.value);
JERRY_ASSERT (v_obj_p != NULL);
ecma_string_t *prototype_magic_string_p = ecma_get_magic_string (ECMA_MAGIC_STRING_PROTOTYPE);
ecma_completion_value_t ret_value;
ECMA_TRY_CATCH (prototype_obj_value,
ecma_op_object_get (func_obj_p, prototype_magic_string_p),
ret_value);
if (prototype_obj_value.u.value.value_type != ECMA_TYPE_OBJECT)
{
ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
}
else
{
ecma_object_t *prototype_obj_p = ECMA_GET_POINTER (prototype_obj_value.u.value.value);
JERRY_ASSERT (prototype_obj_p != NULL);
do
{
v_obj_p = ecma_get_object_prototype (v_obj_p);
if (v_obj_p == NULL)
{
ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE);
break;
}
else if (v_obj_p == prototype_obj_p)
{
ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE);
break;
}
} while (true);
}
ECMA_FINALIZE (prototype_obj_value);
ecma_deref_ecma_string (prototype_magic_string_p);
return ret_value;
}
else if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION)
{
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
}
else
{
JERRY_ASSERT (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_BOUND_FUNCTION);
JERRY_UNIMPLEMENTED ();
}
} /* ecma_op_function_has_instance */
/**
* [[Call]] implementation for Function objects,
* created through 13.2 (ECMA_OBJECT_TYPE_FUNCTION)
* or 15.3.4.5 (ECMA_OBJECT_TYPE_BOUND_FUNCTION),
* and for built-in Function objects
* from section 15 (ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION).
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value

4
src/libecmaoperations/ecma-function-object.h
View File

@ -50,6 +50,10 @@ ecma_op_function_construct (ecma_object_t *func_obj_p,
ecma_value_t* arguments_list_p,
ecma_length_t arguments_list_len);
extern ecma_completion_value_t
ecma_op_function_has_instance (ecma_object_t *func_obj_p,
ecma_value_t value);
extern ecma_completion_value_t
ecma_op_function_declaration (ecma_object_t *lex_env_p,
ecma_string_t *function_name_p,

2
src/libecmaoperations/ecma-objects.c
View File

@ -471,7 +471,7 @@ ecma_op_object_has_instance (ecma_object_t *obj_p, /**< the object */
case ECMA_OBJECT_TYPE_BOUND_FUNCTION:
case ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION:
{
JERRY_UNIMPLEMENTED_REF_UNUSED_VARS (obj_p, value);
return ecma_op_function_has_instance (obj_p, value);
}
case ECMA_OBJECT_TYPE_HOST: