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[TS] Transform multiple assert and assign correctly (#7217)

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* Transform multiple assert and assign correctly

* Handling nested TSAsExpressions in the transform
This commit is contained in:
Maaz Syed Adeeb 2018-09-08 04:53:18 +05:30 committed by Logan Smyth
parent 7273cf8fe5
commit 7accee9c24
3 changed files with 7 additions and 1 deletions
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6
packages/babel-plugin-transform-typescript/src/index.js
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@ -250,7 +250,11 @@ export default declare((api, { jsxPragma = "React" }) => {
}, },
TSAsExpression(path) { TSAsExpression(path) {
path.replaceWith(path.node.expression); let { node } = path;
do {
node = node.expression;
} while (t.isTSAsExpression(node));
path.replaceWith(node);
}, },
TSNonNullExpression(path) { TSNonNullExpression(path) {

1
packages/babel-plugin-transform-typescript/test/fixtures/cast/multiple-assert-and-assign/input.js vendored Normal file
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@ -0,0 +1 @@
(a as number as any) = 42;

1
packages/babel-plugin-transform-typescript/test/fixtures/cast/multiple-assert-and-assign/output.js vendored Normal file
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@ -0,0 +1 @@
a = 42;