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Diffstat (limited to 'js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js')
-rw-r--r-- | js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js b/js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js new file mode 100644 index 0000000000..28d5758eb9 --- /dev/null +++ b/js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js @@ -0,0 +1,34 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2015 Mozilla Corporation. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Jeff Walden +es6id: 13.3.1.1 +description: > + let: |let let| split across two lines is not subject to automatic semicolon insertion. +info: | + |let| followed by a name is a lexical declaration. This is so even if the + name is on a new line. ASI applies *only* if an offending token not allowed + by the grammar is encountered, and there's no [no LineTerminator here] + restriction in LexicalDeclaration or ForDeclaration forbidding a line break. + + It's a tricky point, but this is true *even if* the name is "let", a name that + can't be bound by LexicalDeclaration or ForDeclaration. Per 5.3, static + semantics early errors are validated *after* determining productions matching + the source text. + + So in this testcase, the eval text matches LexicalDeclaration. No ASI occurs, + because "let\nlet = ..." matches LexicalDeclaration before static semantics + are considered. *Then* 13.3.1.1's static semantics for the LexicalDeclaration + just chosen, per 5.3, are validated to recognize the Script as invalid. Thus + the eval script can't be evaluated, and a SyntaxError is thrown. +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +let // start of a LexicalDeclaration, *not* an ASI opportunity +let = "irrelevant initializer"; |