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Diffstat (limited to 'js/src/tests/test262/language/statements/for/scope-body-var-none.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for/scope-body-var-none.js | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for/scope-body-var-none.js b/js/src/tests/test262/language/statements/for/scope-body-var-none.js new file mode 100644 index 0000000000..c4074db7da --- /dev/null +++ b/js/src/tests/test262/language/statements/for/scope-body-var-none.js @@ -0,0 +1,113 @@ +// 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: > + No variable environment is created for each 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. + [...] + e. Perform ? CreatePerIterationEnvironment(perIterationBindings). + [...] + + 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. +flags: [noStrict] +---*/ + +var probeBefore = function() { return [x, y, z]; }; +var probeTest, probeIncr, probeBody; +var run = true; + +for ( + ; + run && (eval('var x = 1;'), probeTest = function() { return [x, y, z]; }); + eval('var y = 1;'), probeIncr = function() { return [x, y, z]; } + ) + var z = 1, _ = (probeBody = function() { return [x, y, z]; }), run = false; + +var x = 2; +var y = 2; +var z = 2; + +assert.sameValue( + probeBefore()[0], + 2, + 'reference preceding statement (redeclared in "test" position)' +); +assert.sameValue( + probeBefore()[1], + 2, + 'reference preceding statement (redeclared in statement body)' +); +assert.sameValue( + probeBefore()[2], + 2, + 'reference preceding statement (redeclared in "increment" position)' +); + +assert.sameValue( + probeTest()[0], + 2, + 'reference from "test" position (redeclared in "test" position)' +); +assert.sameValue( + probeTest()[1], + 2, + 'reference from "test" position (redeclared in statement body)' +); +assert.sameValue( + probeTest()[2], + 2, + 'reference from "test" position (redeclared in "increment" position)' +); + +assert.sameValue( + probeBody()[0], + 2, + 'reference from statement body (redeclared in "test" position)' +); +assert.sameValue( + probeBody()[1], + 2, + 'reference from statement body (redeclared in statement body)' +); +assert.sameValue( + probeBody()[2], + 2, + 'reference from statement body (redeclared in "increment" position)' +); + +assert.sameValue( + probeIncr()[0], + 2, + 'reference from "increment" position (redeclared in "test" position)' +); +assert.sameValue( + probeIncr()[1], + 2, + 'reference from "increment" position (redeclared in statement body)' +); +assert.sameValue( + probeIncr()[2], + 2, + 'reference from "increment" position (redeclared in "increment" position)' +); + +reportCompare(0, 0); |