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// 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-for-statement-runtime-semantics-labelledevaluation
description: >
Creation of new lexical environment for the initial evaluation of the
statement body
info: |
[...]
11. Let bodyResult be ForBodyEvaluation(the first Expression, the second
Expression, Statement, perIterationLets, labelSet).
[...]
13.7.4.8 Runtime Semantics: ForBodyEvaluation
[...]
2. Perform ? CreatePerIterationEnvironment(perIterationBindings).
3. Repeat
[...]
b. Let result be the result of evaluating stmt.
[...]
[...]
13.7.4.9 Runtime Semantics: CreatePerIterationEnvironment
1. If perIterationBindings has any elements, then
[...]
e. Let thisIterationEnv be NewDeclarativeEnvironment(outer).
f. Let thisIterationEnvRec be thisIterationEnv's EnvironmentRecord.
features: [let]
---*/
var probeBefore, probeTest, probeIncr, probeBody;
var run = true;
for (
let x = 'outside', _ = probeBefore = function() { return x; };
run && (x = 'inside', probeTest = function() { return x; });
probeIncr = function() { return x; }
)
probeBody = function() { return x; }, run = false;
assert.sameValue(probeBefore(), 'outside');
assert.sameValue(probeTest(), 'inside', 'reference from "test" position');
assert.sameValue(probeBody(), 'inside', 'reference from statement body');
assert.sameValue(probeIncr(), 'inside', 'reference from "increment" position');
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