75 lines
2.9 KiB
JavaScript
75 lines
2.9 KiB
JavaScript
|
// Copyright 2022 the V8 project authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
// spec:
|
||
|
|
// https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html
|
||
|
|
// #sec-functiondeclarationinstantiation
|
||
|
|
|
||
|
|
// This regession focus on checking [var declared "arguments" should bind to
|
||
|
|
// "arguments exotic object" when has_simple_parameters_ is false and
|
||
|
|
// inner_scope has var declared "arguments"]
|
||
|
|
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is false, and according to step 15-18,
|
||
|
|
// argumentsObjectNeeded is true, according to step 27,
|
||
|
|
// var declared arguments should bind to arguments exotic object
|
||
|
|
function no_parameters_and_non_lexical_arguments() {
|
||
|
|
assertEquals(typeof arguments, 'object');
|
||
|
|
var arguments;
|
||
|
|
}
|
||
|
|
no_parameters_and_non_lexical_arguments()
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is false, and according to step 15-18,
|
||
|
|
// argumentsObjectNeeded is true, according to step 28,
|
||
|
|
// var declared arguments should bind to arguments exotic object
|
||
|
|
function destructuring_parameters_and_non_lexical_arguments([_]) {
|
||
|
|
assertEquals(typeof arguments, 'object');
|
||
|
|
var arguments;
|
||
|
|
}
|
||
|
|
destructuring_parameters_and_non_lexical_arguments([])
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is false, and according to step 15-18,
|
||
|
|
// argumentsObjectNeeded is true, according to step 28,
|
||
|
|
// var declared arguments should bind to arguments exotic object
|
||
|
|
function rest_parameters_and_non_lexical_arguments(..._) {
|
||
|
|
assertEquals(typeof arguments, 'object');
|
||
|
|
var arguments;
|
||
|
|
}
|
||
|
|
rest_parameters_and_non_lexical_arguments()
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is true, and according to step 15-18,
|
||
|
|
// argumentsObjectNeeded is true, according to step 28,
|
||
|
|
// var declared arguments should bind to arguments exotic object
|
||
|
|
function initializer_parameters_and_non_lexical_arguments(_ = 0) {
|
||
|
|
assertEquals(typeof arguments, 'object');
|
||
|
|
var arguments;
|
||
|
|
}
|
||
|
|
initializer_parameters_and_non_lexical_arguments()
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is true, and according to step 15-18,
|
||
|
|
// and argumentsObjectNeeded is true, according to step 34, should
|
||
|
|
// throw because access to let declared arguments
|
||
|
|
function initializer_parameters_and_lexical_arguments(_ = 0) {
|
||
|
|
return typeof arguments;
|
||
|
|
let arguments;
|
||
|
|
}
|
||
|
|
|
||
|
|
assertThrows(initializer_parameters_and_lexical_arguments);
|
||
|
|
|
||
|
|
// according to ES#sec-functiondeclarationinstantiation step 8,
|
||
|
|
// hasParameterExpressions is false, and according to step 15-18,
|
||
|
|
// argumentsObjectNeeded is false, according to step 34,
|
||
|
|
// should throw because access to let declared arguments
|
||
|
|
function simple_parameters_and_lexical_arguments(_) {
|
||
|
|
return typeof arguments;
|
||
|
|
let arguments;
|
||
|
|
}
|
||
|
|
|
||
|
|
assertThrows(simple_parameters_and_lexical_arguments);
|