When using a key word as a identifier report something better than 'SyntaxError: missing variable name'
Performance Impact Webcompat Priority Accessibility Severity Size Estimate Webcompat Score a11y-review Tracking Status firefox135 --- fixed Tracking Status relnote-firefox thunderbird_esr115 thunderbird_esr128 firefox-esr115 firefox-esr128 firefox135 firefox138 firefox139 firefox140Reset Assignee to default
Bug Flags:
behind-pref firefox-backlog sec-bounty sec-bounty-hof in-qa-testsuite in-testsuite qe-verifyThis bug is publicly visible.
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0
Steps to reproduce:
run the program:
var else;
Actual results:
SyntaxError:missing variable name
Expected results:
SyntaxError:Cannot use the keyword 'else' as a variable name.(JSC)
SyntaxError:Unexpected token 'else'.(V8)
It is obvious that the error is wrong variable name rather than missing variable name when i use a key word as a identifier.
It also has the same problem when i use 'arguments','break','case','catch','class',
'const','continue','debugger','default','delete','do','else','enum','export','extends','false','finally','for','function','if','import','in','instanceof','new','null','return','super','switch','this','throw','true','try','typeof','var','void','while','with'.
Component: Untriaged → JavaScript Engine
Product: Firefox → Core
Version: Firefox 101 → Firefox 100
This would certainly be a nice improvement.
Severity: -- → N/A
Type: defect → enhancement
Priority: -- → P3
Summary: When use a key word as a identifier,it report 'SyntaxError:missing variable name' → When using a key word as a identifier report something better than 'SyntaxError: missing variable name'
Assignee: nobody → abdoatef.ab
Status: UNCONFIRMED → ASSIGNED
Ever confirmed: true
Attachment #9444560- Attachment description: Bug 1775215 - Add better error reporting when using keyword as identifier. r=dminor → Bug 1775215 - Add token kind description to missing variable error message. r=dminor
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