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properly register a binding when pushing it to the scope

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This commit is contained in:
Sebastian McKenzie 2015-08-27 16:28:59 -07:00
parent 061ba7b2a2
commit 8067aa65ab
1 changed files with 8 additions and 7 deletions
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15
packages/babel-traverse/src/scope/index.js
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@ -829,21 +829,22 @@ export default class Scope {
var blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
var dataKey = `declaration:${kind}:${blockHoist}`;
var declar = !unique && path.getData(dataKey);
var declarPath = !unique && path.getData(dataKey);
if (!declar) {
declar = t.variableDeclaration(kind, []);
if (!declarPath) {
var declar = t.variableDeclaration(kind, []);
declar._generated = true;
declar._blockHoist = blockHoist;
this.hub.file.attachAuxiliaryComment(declar);
var [declarPath] = path.unshiftContainer("body", [declar]);
this.registerBinding(kind, declarPath);
if (!unique) path.setData(dataKey, declar);
[declarPath] = path.unshiftContainer("body", [declar]);
if (!unique) path.setData(dataKey, declarPath);
}
declar.declarations.push(t.variableDeclarator(opts.id, opts.init));
var declarator = t.variableDeclarator(opts.id, opts.init);
declarPath.node.declarations.push(declarator);
this.registerBinding(kind, declarPath.get("declarations").pop());
}
/**