mirror of https://github.com/tc39/test262.git
40 lines
1.3 KiB
JavaScript
40 lines
1.3 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
esid: sec-ecmascript-function-objects-call-thisargument-argumentslist
|
|
description: >
|
|
Creation of new variable environment for the function parameters and body
|
|
(as distinct from that for the function's BindingIdentifier)
|
|
info: |
|
|
[...]
|
|
3. Let callerContext be the running execution context.
|
|
4. Let calleeContext be PrepareForOrdinaryCall(F, undefined).
|
|
[...]
|
|
|
|
9.2.1.1 PrepareForOrdinaryCall
|
|
|
|
[...]
|
|
8. Let localEnv be NewFunctionEnvironment(F, newTarget).
|
|
9. Set the LexicalEnvironment of calleeContext to localEnv.
|
|
10. Set the VariableEnvironment of calleeContext to localEnv.
|
|
[...]
|
|
features: [let]
|
|
---*/
|
|
|
|
var n = 'outside';
|
|
var probeBefore = function() { return n; };
|
|
var probeInside;
|
|
|
|
// This test intentionally elides parameter expressions because their presence
|
|
// triggers the creation of an additional LexicalEnvironment dedicated to the
|
|
// function body (see sec-functiondeclarationinstantiation)
|
|
var func = function n() {
|
|
let n = 'inside';
|
|
probeInside = function() { return n; };
|
|
};
|
|
|
|
func();
|
|
|
|
assert.sameValue(probeBefore(), 'outside');
|
|
assert.sameValue(probeInside(), 'inside');
|