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fix(babel-parser): Allow line break before assert return type (#13771)

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JuniorTour 2021-09-16 16:24:11 -05:00 committed by GitHub
parent 8fb50429ea
commit da79c90f2a
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3 changed files with 187 additions and 5 deletions
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6
packages/babel-parser/src/plugins/typescript/index.js
View File

@ -1316,11 +1316,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
} }
tsParseTypePredicateAsserts(): boolean { tsParseTypePredicateAsserts(): boolean {
if ( if (!this.match(tt.name) || this.state.value !== "asserts") {
!this.match(tt.name) ||
this.state.value !== "asserts" ||
this.hasPrecedingLineBreak()
) {
return false; return false;
} }
const containsEsc = this.state.containsEsc; const containsEsc = this.state.containsEsc;

2
packages/babel-parser/test/fixtures/typescript/assert-predicate/function-declaration-with-line-break/input.ts vendored Normal file
View File

@ -0,0 +1,2 @@
function assert(condition: any):
asserts condition {}

184
packages/babel-parser/test/fixtures/typescript/assert-predicate/function-declaration-with-line-break/output.json vendored Normal file
View File

@ -0,0 +1,184 @@
{
"type": "File",
"start": 0,
"end": 53,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 20
}
},
"program": {
"type": "Program",
"start": 0,
"end": 53,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 20
}
},
"sourceType": "module",
"interpreter": null,
"body": [
{
"type": "FunctionDeclaration",
"start": 0,
"end": 53,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 20
}
},
"id": {
"type": "Identifier",
"start": 9,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 9
},
"end": {
"line": 1,
"column": 15
},
"identifierName": "assert"
},
"name": "assert"
},
"generator": false,
"async": false,
"params": [
{
"type": "Identifier",
"start": 16,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 16
},
"end": {
"line": 1,
"column": 30
},
"identifierName": "condition"
},
"name": "condition",
"typeAnnotation": {
"type": "TSTypeAnnotation",
"start": 25,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 25
},
"end": {
"line": 1,
"column": 30
}
},
"typeAnnotation": {
"type": "TSAnyKeyword",
"start": 27,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 27
},
"end": {
"line": 1,
"column": 30
}
}
}
}
}
],
"returnType": {
"type": "TSTypeAnnotation",
"start": 31,
"end": 50,
"loc": {
"start": {
"line": 1,
"column": 31
},
"end": {
"line": 2,
"column": 17
}
},
"typeAnnotation": {
"type": "TSTypePredicate",
"start": 33,
"end": 50,
"loc": {
"start": {
"line": 2,
"column": 0
},
"end": {
"line": 2,
"column": 17
}
},
"parameterName": {
"type": "Identifier",
"start": 41,
"end": 50,
"loc": {
"start": {
"line": 2,
"column": 8
},
"end": {
"line": 2,
"column": 17
},
"identifierName": "condition"
},
"name": "condition"
},
"asserts": true,
"typeAnnotation": null
}
},
"body": {
"type": "BlockStatement",
"start": 51,
"end": 53,
"loc": {
"start": {
"line": 2,
"column": 18
},
"end": {
"line": 2,
"column": 20
}
},
"body": [],
"directives": []
}
}
],
"directives": []
}
}