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Diffstat (limited to 'js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js b/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js new file mode 100644 index 0000000000..b24988864a --- /dev/null +++ b/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js @@ -0,0 +1,42 @@ +// 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-in-and-for-of-statements-runtime-semantics-labelledevaluation +description: > + Removal of lexical environment for the initial evaluation of the statement + body +info: | + IterationStatement : for ( ForDeclaration of AssignmentExpression ) Statement + + [...] + 2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, + lexicalBinding, labelSet). + + 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation + + [...] + 5. Repeat + [...] + i. Let result be the result of evaluating stmt. + j. Set the running execution context's LexicalEnvironment to oldEnv. + k. If LoopContinues(result, labelSet) is false, return ? + IteratorClose(iterator, UpdateEmpty(result, V)). + l. If result.[[Value]] is not empty, let V be result.[[Value]]. +features: [let] +---*/ + +let x = 'outside'; +var probeDecl, probeBody; + +for ( + let [x, _ = probeDecl = function() { return x; }] + in + { i: 0 } + ) + probeBody = function() { return x; }; + +assert.sameValue(probeDecl(), 'i', 'reference from ForDeclaration'); +assert.sameValue(probeBody(), 'i', 'reference from statement body'); +assert.sameValue(x, 'outside'); + +reportCompare(0, 0); |