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fixed babel/babel#4632 - missing parentheses around yield expression … (#4633)

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* fixed babel/babel#4632 - missing parentheses around yield expression in conditional test

* babel/babel#4632 - added test
This commit is contained in:
Bruno Jouhier 2016-10-01 18:58:59 +02:00 committed by Henry Zhu
parent 16716ea3de
commit f9ccee9d83
3 changed files with 5 additions and 3 deletions
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4
packages/babel-generator/src/node/parentheses.js
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@ -142,7 +142,9 @@ export function YieldExpression(node: Object, parent: Object): boolean {
t.isUnaryLike(parent) ||
t.isCallExpression(parent) ||
t.isMemberExpression(parent) ||
t.isNewExpression(parent);
t.isNewExpression(parent) ||
(t.isConditionalExpression(parent) && node === parent.test);
}
export { YieldExpression as AwaitExpression };

2
packages/babel-generator/test/fixtures/parentheses/yield-expression/actual.js vendored
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@ -2,7 +2,7 @@ function* asdf() {
(yield 1) || (yield 2);
(yield b)();
new (yield b)();
true ? (yield 1) : (yield 2);
(yield 1) ? (yield 2) : (yield 3);
yield (yield 1);
}

2
packages/babel-generator/test/fixtures/parentheses/yield-expression/expected.js vendored
View File

@ -2,7 +2,7 @@ function* asdf() {
(yield 1) || (yield 2);
(yield b)();
new (yield b)();
true ? yield 1 : yield 2;
(yield 1) ? yield 2 : yield 3;
yield yield 1;
}