diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for/head-let-destructuring.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for/head-let-destructuring.js | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for/head-let-destructuring.js b/js/src/tests/test262/language/statements/for/head-let-destructuring.js new file mode 100644 index 0000000000..8577f67b48 --- /dev/null +++ b/js/src/tests/test262/language/statements/for/head-let-destructuring.js @@ -0,0 +1,32 @@ +// 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-iteration-statements +es6id: 13.7 +description: > + The token sequence `let [`is interpreted as the beginning of a destructuring + binding pattern +info: | + Syntax + + IterationStatement[Yield, Return]: + + for ( [lookahead ∉ { let [ } ] Expression[~In, ?Yield]opt ; + Expression[+In, ?Yield]opt ; Expression[+In, ?Yield]opt ) + Statement[?Yield, ?Return] + + for ( LexicalDeclaration[~In, ?Yield] Expression[+In, ?Yield]opt ; + Expression[+In, ?Yield]opt) Statement[?Yield, ?Return] +---*/ + +var value; + +for ( let[x] = [23]; ; ) { + value = x; + break; +} + +assert.sameValue(typeof x, 'undefined', 'binding is block-scoped'); +assert.sameValue(value, 23); + +reportCompare(0, 0); |