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check parent for variable collisions when remapping closurified block scopes - fixes #915, closes #922

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This commit is contained in:
Sebastian McKenzie 2015-03-02 01:27:58 +11:00
parent 27a8f2d2ea
commit 63f25ab038
3 changed files with 17 additions and 1 deletions
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2
src/babel/transformation/transformers/es6/block-scoping.js
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@ -327,7 +327,7 @@ class BlockScoping {
for (var name in outsideRefs) {
var id = outsideRefs[name];
if (this.scope.hasGlobal(id.name)) {
if (this.scope.hasGlobal(id.name) || this.scope.parentHasBinding(id.name)) {
delete outsideRefs[id.name];
delete this.letReferences[id.name];

5
test/fixtures/transformation/es6-block-scoping/wrap-closure-shadow-variables/actual.js vendored Normal file
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@ -0,0 +1,5 @@
let a = 1;
for (let a = 1; a < 100; a++) {
items.forEach(item => a);
}
console.log(a);

11
test/fixtures/transformation/es6-block-scoping/wrap-closure-shadow-variables/expected.js vendored Normal file
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@ -0,0 +1,11 @@
"use strict";
var a = 1;
for (var _a = 1; _a < 100; _a++) {
(function (_a) {
items.forEach(function (item) {
return _a;
});
})(_a);
}
console.log(a);