test262/test/built-ins/Reflect/apply/call-target.js

37 lines
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JavaScript

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 26.1.1
description: >
Call target with thisArgument and argumentsList
info: |
26.1.1 Reflect.apply ( target, thisArgument, argumentsList )
...
4. Perform PrepareForTailCall().
5. Return Call(target, thisArgument, args).
features: [Reflect]
---*/
var o = {};
var count = 0;
var results, args;
function fn() {
count++;
results = {
thisArg: this,
args: arguments
};
}
Reflect.apply(fn, o, ['arg1', 2, , null]);
assert.sameValue(count, 1, 'Called target once');
assert.sameValue(results.thisArg, o, 'Called target with `o` as `this` object');
assert.sameValue(results.args.length, 4, 'Called target with 4 arguments');
assert.sameValue(results.args[0], 'arg1');
assert.sameValue(results.args[1], 2);
assert.sameValue(results.args[2], undefined);
assert.sameValue(results.args[3], null);