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Allow jsx to be the body of a typed arrow function (#595)

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Fixes #593
This commit is contained in:
Nicolò Ribaudo 2017-06-28 16:17:51 +02:00 committed by Henry Zhu
parent 759266a2e8
commit 03b3b39b17
3 changed files with 206 additions and 1 deletions
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3
src/plugins/flow.js
View File

@ -958,7 +958,8 @@ export default (superClass: Class<Parser>): Class<Parser> => class extends super
this.state.inType = true;
const type = this.flowParseUnionType();
this.state.inType = oldInType;
this.state.exprAllowed = false;
// noAnonFunctionType is true when parsing an arrow function
this.state.exprAllowed = this.state.noAnonFunctionType;
return type;
}

1
test/fixtures/flow/regression/issue-593/actual.js vendored Normal file
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@ -0,0 +1 @@
const fail = (): X => <x />;

203
test/fixtures/flow/regression/issue-593/expected.json vendored Normal file
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@ -0,0 +1,203 @@
{
"type": "File",
"start": 0,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 28
}
},
"program": {
"type": "Program",
"start": 0,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 28
}
},
"sourceType": "module",
"body": [
{
"type": "VariableDeclaration",
"start": 0,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 28
}
},
"declarations": [
{
"type": "VariableDeclarator",
"start": 6,
"end": 27,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 27
}
},
"id": {
"type": "Identifier",
"start": 6,
"end": 10,
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 10
},
"identifierName": "fail"
},
"name": "fail"
},
"init": {
"type": "ArrowFunctionExpression",
"start": 13,
"end": 27,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 27
}
},
"predicate": null,
"returnType": {
"type": "TypeAnnotation",
"start": 15,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 15
},
"end": {
"line": 1,
"column": 18
}
},
"typeAnnotation": {
"type": "GenericTypeAnnotation",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
}
},
"typeParameters": null,
"id": {
"type": "Identifier",
"start": 17,
"end": 18,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 18
},
"identifierName": "X"
},
"name": "X"
}
}
},
"id": null,
"generator": false,
"expression": true,
"async": false,
"params": [],
"body": {
"type": "JSXElement",
"start": 22,
"end": 27,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 27
}
},
"openingElement": {
"type": "JSXOpeningElement",
"start": 22,
"end": 27,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 27
}
},
"attributes": [],
"name": {
"type": "JSXIdentifier",
"start": 23,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 23
},
"end": {
"line": 1,
"column": 24
}
},
"name": "x"
},
"selfClosing": true
},
"closingElement": null,
"children": []
}
}
}
],
"kind": "const"
}
],
"directives": []
}
}