Review

4

com/google/javascript/jscomp/SideEffectsAnalysis.java

storageNodeIsLValue(Node)

class SideEffectsAnalysis.VisibilityLocationAbstraction {
    /**
     * Return true if the storage node is an l-value.
     */
    private static boolean storageNodeIsLValue(Node node) {
      Preconditions.checkArgument(isStorageNode(node));
     
      Node parent = node.getParent();
   
      return (NodeUtil.isAssignmentOp(parent) && parent.getFirstChild() == node)
          || (NodeUtil.isForIn(parent) && parent.getFirstChild() == node)
          || NodeUtil.isVar(parent)
          || parent.getType() == Token.DEC
          || parent.getType() == Token.INC;
    }

}