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Fix objectSpread2 backward compatibility (#10170)

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Nicolò Ribaudo 2019-07-06 09:48:36 +02:00 committed by GitHub
parent bff79e198a
commit 24dde2e8e8
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2 changed files with 8 additions and 2 deletions
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2
packages/babel-helpers/src/helpers.js
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@ -406,7 +406,7 @@ helpers.objectSpread = helper("7.0.0-beta.0")`
} }
`; `;
helpers.objectSpread2 = helper("7.0.0-beta.0")` helpers.objectSpread2 = helper("7.5.0")`
import defineProperty from "defineProperty"; import defineProperty from "defineProperty";
export default function _objectSpread2(target) { export default function _objectSpread2(target) {

6
packages/babel-plugin-proposal-object-rest-spread/src/index.js
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@ -452,7 +452,13 @@ export default declare((api, opts) => {
if (loose) { if (loose) {
helper = getExtendsHelper(file); helper = getExtendsHelper(file);
} else { } else {
try {
helper = file.addHelper("objectSpread2"); helper = file.addHelper("objectSpread2");
} catch {
// objectSpread2 has been introduced in v7.5.0
// We have to maintain backward compatibility.
helper = file.addHelper("objectSpread");
}
} }
path.replaceWith(t.callExpression(helper, args)); path.replaceWith(t.callExpression(helper, args));