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add node existence check to each visitor call

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This commit is contained in:
Sebastian McKenzie 2015-05-07 23:02:40 +01:00
parent 380293d030
commit 13a6c69668
1 changed files with 5 additions and 2 deletions
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7
src/babel/traversal/path/index.js
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@ -696,6 +696,9 @@ export default class TraversalPath {
for (var fn of (fns: Array)) {
if (!fn) continue;
var node = this.node;
if (!node) return;
// call the function with the params (node, parent, scope, state)
var replacement = fn.call(this, node, this.parent, this.scope, this.state);
if (replacement) {
@ -703,11 +706,11 @@ export default class TraversalPath {
this.replaceWith(replacement, true);
if (this.type !== previousType) {
this.queueNode(this);
break;
return;
}
}
if (this.shouldStop || this.removed) break;
if (this.shouldStop || this.removed) return;
}
}