mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-08-05 07:41:01 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

LibJS: Don't treat '?.' followed by decimal digit as QuestionMarkPeriod

Browse source 
From the spec: https://tc39.es/ecma262/#sec-punctuators

    OptionalChainingPunctuator ::
        ?. [lookahead ∉ DecimalDigit]

We were missing the lookahead and therefore incorrectly treating any
'?.' as TokenType::QuestionMarkPeriod.

Fixes #4409.
This commit is contained in:
Linus Groh 2020-12-14 13:05:24 +00:00 • committed by Andreas Kling
commit 0974991d05
Notes: sideshowbarker 2024-07-19 00:52:17 +09:00
2 changed files with 11 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Libraries/LibJS/Tests/operators/ternary-basic.js
View file

@ -14,3 +14,7 @@ test("object values", () => {
expect(o.f ? true : false).toBeTrue();
expect(1 ? o.f : null).toBeTrue();
});
test("issue #4409, '?.' followed by decimal digit", () => {
expect("return false?.1:.2").toEvalTo(0.2);
});