summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/language/statements/let/syntax/let-let-declaration-with-initializer-split-across-two-lines.js
diff options
context:
space:
mode:
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.js34
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";