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Don't return the last falsy element in forEachChild.

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This commit is contained in:
Cyrus Najmabadi
2014-12-04 13:06:03 -08:00
parent 51804ee91e
commit 7e6f1ab01d
1 changed files with 17 additions and 7 deletions
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24
src/compiler/parser.ts
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@@ -195,19 +195,29 @@ module ts {
// a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
export function forEachChild<T>(node: Node, cbNode: (node: Node) => T, cbNodes?: (nodes: Node[]) => T): T {
function child(node: Node): T {
if (node) return cbNode(node);
if (node) {
return cbNode(node);
}
}
function children(nodes: Node[]) {
if (nodes) {
if (cbNodes) return cbNodes(nodes);
var result: T;
for (var i = 0, len = nodes.length; i < len; i++) {
if (result = cbNode(nodes[i])) break;
if (cbNodes) {
return cbNodes(nodes);
}
return result;
for (var i = 0, len = nodes.length; i < len; i++) {
var result = cbNode(nodes[i])
if (result) {
return result;
}
}
return undefined;
}
}
if (!node) return;
if (!node) {
return;
}
switch (node.kind) {
case SyntaxKind.QualifiedName:
return child((<QualifiedName>node).left) ||