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protect against replacing a class expression with itself when attempting to infer a new function name - fixes #2803

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Sebastian McKenzie
2015-11-04 23:34:33 +00:00
parent 1796b1926c
commit 1bfb7039e9
3 changed files with 5 additions and 1 deletions
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1
packages/babel-core/test/fixtures/transformation/es6.classes/inferred-expression-name/actual.js vendored Normal file
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@@ -0,0 +1 @@
var o = { foo: class foo {} };

3
packages/babel-core/test/fixtures/transformation/es6.classes/inferred-expression-name/expected.js vendored Normal file
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@@ -0,0 +1,3 @@
var o = { foo: function foo() {
babelHelpers.classCallCheck(this, foo);
} };

2
packages/babel-plugin-transform-es2015-classes/src/index.js
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@@ -20,7 +20,7 @@ export default function ({ types: t }) {
ClassExpression(path, state) {
let inferred = nameFunction(path);
if (inferred) return path.replaceWith(inferred);
if (inferred && inferred !== path.node) return path.replaceWith(inferred);
let Constructor = VanillaTransformer;
if (state.opts.loose) Constructor = LooseTransformer;