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ade6d2e384
Because expectations regarding error "phase" are now expressed via test meta-data, the test runner may now enforce this requirement on negative tests. Remove the "NotEarlyError" from the project source. This reduces the amount of domain knowledge required to author tests and lessens the potential for inconsistencies between tests.
32 lines
1.3 KiB
JavaScript
32 lines
1.3 KiB
JavaScript
// Copyright (C) 2015 Mozilla Corporation. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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author: Jeff Walden
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es6id: 13.3.1.1
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description: >
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let: |let let| split across two lines is not subject to automatic semicolon insertion.
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info: >
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|let| followed by a name is a lexical declaration. This is so even if the
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name is on a new line. ASI applies *only* if an offending token not allowed
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by the grammar is encountered, and there's no [no LineTerminator here]
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restriction in LexicalDeclaration or ForDeclaration forbidding a line break.
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It's a tricky point, but this is true *even if* the name is "let", a name that
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can't be bound by LexicalDeclaration or ForDeclaration. Per 5.3, static
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semantics early errors are validated *after* determining productions matching
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the source text.
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So in this testcase, the eval text matches LexicalDeclaration. No ASI occurs,
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because "let\nlet = ..." matches LexicalDeclaration before static semantics
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are considered. *Then* 13.3.1.1's static semantics for the LexicalDeclaration
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just chosen, per 5.3, are validated to recognize the Script as invalid. Thus
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the eval script can't be evaluated, and a SyntaxError is thrown.
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negative:
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phase: early
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type: SyntaxError
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---*/
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let // start of a LexicalDeclaration, *not* an ASI opportunity
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let;
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