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fix(babel-parser): chain off optionally chained keys named cla… (#11198)

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* fix(babel-parser): chain off optionally chained keys named class and function

Fixes #11197

* Extract override as variable to satisfy typechecker

Flow did not trust that curContext.override would be defined
This commit is contained in:
vages 2020-03-03 17:27:41 +00:00 committed by GitHub
parent 8f281f578d
commit 2603c2e227
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 476 additions and 2 deletions
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5
packages/babel-parser/src/tokenizer/index.js
View File

@ -233,8 +233,9 @@ export default class Tokenizer extends LocationParser {
return;
}
if (curContext.override) {
curContext.override(this);
const override = curContext?.override;
if (override) {
override(this);
} else {
this.getTokenFromCode(this.input.codePointAt(this.state.pos));
}

4
packages/babel-parser/test/fixtures/es2020/optional-chaining/chaining-off-optionally-chained-keys-named-class-or-function/input.js vendored Normal file
View File

@ -0,0 +1,4 @@
foo?.class.bar
foo?.function.bar
foo?.bar?.class.bar
foo?.function?.bar

469
packages/babel-parser/test/fixtures/es2020/optional-chaining/chaining-off-optionally-chained-keys-named-class-or-function/output.json vendored Normal file
View File

@ -0,0 +1,469 @@
{
"type": "File",
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"end": 71,
"loc": {
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}
},
"program": {
"type": "Program",
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"end": 71,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
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"column": 18
}
},
"sourceType": "script",
"interpreter": null,
"body": [
{
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},
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}
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"identifierName": "bar"
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"name": "bar"
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}
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"identifierName": "function"
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"name": "function"
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"computed": false,
"optional": true
},
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"identifierName": "bar"
},
"name": "bar"
},
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"optional": false
}
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},
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},
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},
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},
"identifierName": "class"
},
"name": "class"
},
"computed": false,
"optional": true
},
"property": {
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},
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},
"identifierName": "bar"
},
"name": "bar"
},
"computed": false,
"optional": false
}
},
{
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},
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}
},
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},
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}
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},
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"name": "bar"
},
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"optional": true
}
}
],
"directives": []
}
}