| Code with Finding: |
class CollapseProperties {
/**
* Flattens a particular prefix of a single name reference.
*
* @param alias A flattened prefix name (e.g. "a$b")
* @param n The node corresponding to a subproperty name (e.g. "a.b.c.d")
* @param depth The difference in depth between the property name and
* the prefix name (e.g. 2)
* @param originalName String version of the property name.
*/
private void flattenNameRefAtDepth(String alias, Node n, int depth,
String originalName) {
// This method has to work for both GETPROP chains and, in rare cases,
// OBJLIT keys, possibly nested. That's why we check for children before
// proceeding. In the OBJLIT case, we don't need to do anything.
int nType = n.getType();
boolean isQName = nType == Token.NAME || nType == Token.GETPROP;
boolean isObjKey = NodeUtil.isObjectLitKey(n, n.getParent());
Preconditions.checkState(isObjKey || isQName);
if (isQName) {
for (int i = 1; i < depth && n.hasChildren(); i++) {
n = n.getFirstChild();
}
if (n.hasChildren()) {
flattenNameRef(alias, n.getFirstChild(), n, originalName);
}
}
}
}
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