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fix: ExpressionBody should respect [In] parameter (#11931)

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Huáng Jùnliàng 2020-08-26 13:24:44 -04:00 committed by GitHub
parent 97075c9091
commit 2c60595342
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5 changed files with 97 additions and 1 deletions
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3
packages/babel-parser/src/parser/expression.js
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@ -2118,7 +2118,8 @@ export default class ExpressionParser extends LValParser {
this.state.inParameters = false;
if (isExpression) {
node.body = this.parseMaybeAssignAllowIn();
// https://tc39.es/ecma262/#prod-ExpressionBody
node.body = this.parseMaybeAssign();
this.checkParams(node, false, allowExpression, false);
} else {
const oldStrict = this.state.strict;

3
packages/babel-parser/test/fixtures/es2015/arrow-functions/concise-body-binary-in/input.js vendored Normal file
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@ -0,0 +1,3 @@
const t = () => ({
v: (v) => v in z
})

88
packages/babel-parser/test/fixtures/es2015/arrow-functions/concise-body-binary-in/output.json vendored Normal file
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@ -0,0 +1,88 @@
{
"type": "File",
"start":0,"end":40,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":2}},
"program": {
"type": "Program",
"start":0,"end":40,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":2}},
"sourceType": "script",
"interpreter": null,
"body": [
{
"type": "VariableDeclaration",
"start":0,"end":40,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":2}},
"declarations": [
{
"type": "VariableDeclarator",
"start":6,"end":40,"loc":{"start":{"line":1,"column":6},"end":{"line":3,"column":2}},
"id": {
"type": "Identifier",
"start":6,"end":7,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":7},"identifierName":"t"},
"name": "t"
},
"init": {
"type": "ArrowFunctionExpression",
"start":10,"end":40,"loc":{"start":{"line":1,"column":10},"end":{"line":3,"column":2}},
"id": null,
"generator": false,
"async": false,
"params": [],
"body": {
"type": "ObjectExpression",
"start":17,"end":39,"loc":{"start":{"line":1,"column":17},"end":{"line":3,"column":1}},
"properties": [
{
"type": "ObjectProperty",
"start":21,"end":37,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":18}},
"method": false,
"key": {
"type": "Identifier",
"start":21,"end":22,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":3},"identifierName":"v"},
"name": "v"
},
"computed": false,
"shorthand": false,
"value": {
"type": "ArrowFunctionExpression",
"start":24,"end":37,"loc":{"start":{"line":2,"column":5},"end":{"line":2,"column":18}},
"id": null,
"generator": false,
"async": false,
"params": [
{
"type": "Identifier",
"start":25,"end":26,"loc":{"start":{"line":2,"column":6},"end":{"line":2,"column":7},"identifierName":"v"},
"name": "v"
}
],
"body": {
"type": "BinaryExpression",
"start":31,"end":37,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":18}},
"left": {
"type": "Identifier",
"start":31,"end":32,"loc":{"start":{"line":2,"column":12},"end":{"line":2,"column":13},"identifierName":"v"},
"name": "v"
},
"operator": "in",
"right": {
"type": "Identifier",
"start":36,"end":37,"loc":{"start":{"line":2,"column":17},"end":{"line":2,"column":18},"identifierName":"z"},
"name": "z"
}
}
}
}
],
"extra": {
"parenthesized": true,
"parenStart": 16
}
}
}
}
],
"kind": "const"
}
],
"directives": []
}
}

1
packages/babel-parser/test/fixtures/es2015/arrow-functions/no-for-in-init-concise-binary-in/input.js vendored Normal file
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@ -0,0 +1 @@
for (() => x in y;;);

3
packages/babel-parser/test/fixtures/es2015/arrow-functions/no-for-in-init-concise-binary-in/options.json vendored Normal file
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@ -0,0 +1,3 @@
{
"throws": "Unexpected token, expected \")\" (1:17)"
}