Closed Bug 1022363 Opened 12 years ago Closed 12 years ago

Parser bug for number token followed by in/instanceof without whitespace

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Version:
29 Branch
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED INVALID

People

(Reporter: firefox, Unassigned)

Details

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0 (Beta/Release) Build ID: 20140428193838 Steps to reproduce: `1.in foo` `1.instanceof foo` `1in foo` `1instanceof foo` Actual results: SyntaxError: identifier starts immediately after numeric literal Expected results: Should not have thrown that syntax error as it is syntactically correct. Parser should make an exception for this bug if it involves `in` or `instanceof`
Component: Untriaged → JavaScript Engine
Product: Firefox → Core
I think this bug is invalid. See https://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-numeric-literals The SourceCharacter immediately following a NumericLiteral must not be an IdentifierStart or DecimalDigit. Especially: "3in is an error"
OS: Linux → All
Hardware: x86_64 → All
I believe you are correct. Not sure how I missed that line all this time. Thanks for pointing it out.
Status: UNCONFIRMED → RESOLVED
Closed: 12 years ago
Resolution: --- → INVALID
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