/** * 'instanceof' opcode handler. * * See also: ECMA-262 v5, 11.8.6 * * @return ecma value * returned value must be freed with ecma_free_value. */ ecma_value_t opfunc_instanceof (ecma_value_t left_value, /**< left value */ ecma_value_t right_value) /**< right value */ { ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); if (!ecma_is_value_object (right_value)) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Expected an object in 'instanceof' check.")); } else { ecma_object_t *right_value_obj_p = ecma_get_object_from_value (right_value); ECMA_TRY_CATCH (is_instance_of, ecma_op_object_has_instance (right_value_obj_p, left_value), ret_value); ret_value = is_instance_of; ECMA_FINALIZE (is_instance_of); } return ret_value; } /* opfunc_instanceof */
/** * 'instanceof' opcode handler. * * See also: ECMA-262 v5, 11.8.6 * * @return ecma value * returned value must be freed with ecma_free_value. */ ecma_value_t opfunc_instanceof (ecma_value_t left_value, /**< left value */ ecma_value_t right_value) /**< right value */ { if (!ecma_is_value_object (right_value)) { return ecma_raise_type_error (ECMA_ERR_MSG ("Expected an object in 'instanceof' check.")); } ecma_object_t *right_value_obj_p = ecma_get_object_from_value (right_value); return ecma_op_object_has_instance (right_value_obj_p, left_value); } /* opfunc_instanceof */
/** * [[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_FUNCTION). * * @return ecma value * Returned value must be freed with ecma_free_value */ ecma_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)); ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY); if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_FUNCTION) { if (ecma_get_object_is_builtin (func_obj_p) && ecma_builtin_function_is_routine (func_obj_p)) { return ecma_raise_type_error (ECMA_ERR_MSG ("Function parameter cannot be built-in a function.")); } if (!ecma_is_value_object (value)) { return ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE); } ecma_object_t *v_obj_p = ecma_get_object_from_value (value); ecma_string_t *prototype_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE); ECMA_TRY_CATCH (prototype_obj_value, ecma_op_object_get (func_obj_p, prototype_magic_string_p), ret_value); if (!ecma_is_value_object (prototype_obj_value)) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Expected an object.")); } else { ecma_object_t *prototype_obj_p = ecma_get_object_from_value (prototype_obj_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_value (ECMA_SIMPLE_VALUE_FALSE); break; } else if (v_obj_p == prototype_obj_p) { ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE); break; } } while (true); } ECMA_FINALIZE (prototype_obj_value); ecma_deref_ecma_string (prototype_magic_string_p); } else if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION) { ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Expected a function.")); } else { JERRY_ASSERT (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_BOUND_FUNCTION); /* 1. */ ecma_extended_object_t *ext_function_p = (ecma_extended_object_t *) func_obj_p; ecma_object_t *target_func_obj_p; target_func_obj_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_object_t, ext_function_p->u.bound_function.target_function); /* 3. */ ret_value = ecma_op_object_has_instance (target_func_obj_p, value); } return ret_value; } /* 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 */ 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)); ecma_completion_value_t ret_value = ecma_make_empty_completion_value (); if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_FUNCTION) { if (!ecma_is_value_object (value)) { return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE); } ecma_object_t* v_obj_p = ecma_get_object_from_value (value); ecma_string_t *prototype_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE); ECMA_TRY_CATCH (prototype_obj_value, ecma_op_object_get (func_obj_p, prototype_magic_string_p), ret_value); if (!ecma_is_value_object (prototype_obj_value)) { ret_value = ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE)); } else { ecma_object_t *prototype_obj_p = ecma_get_object_from_value (prototype_obj_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); } else if (ecma_get_object_type (func_obj_p) == ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION) { ret_value = 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); /* 1. */ ecma_property_t *target_function_prop_p; target_function_prop_p = ecma_get_internal_property (func_obj_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_TARGET_FUNCTION); ecma_object_t *target_func_obj_p = ECMA_GET_NON_NULL_POINTER (ecma_object_t, target_function_prop_p->u.internal_property.value); /* 3. */ ret_value = ecma_op_object_has_instance (target_func_obj_p, value); } return ret_value; } /* ecma_op_function_has_instance */