Class Es6NormalizeShorthandProperties

  • All Implemented Interfaces:
    CompilerPass, NodeTraversal.Callback

    public final class Es6NormalizeShorthandProperties
    extends NodeTraversal.AbstractPostOrderCallback
    implements CompilerPass
    Normalizes shorthand object properties. This should be one of the first things done when transpiling from ES6 down to ES5, as it allows all the following checks and transpilations to not care about shorthand and destructured assignments.
    • Constructor Detail

      • Es6NormalizeShorthandProperties

        public Es6NormalizeShorthandProperties​(AbstractCompiler compiler)
    • Method Detail

      • process

        public void process​(Node externs,
                            Node root)
        Description copied from interface: CompilerPass
        Process the JS with root node root. Can modify the contents of each Node tree
        Specified by:
        process in interface CompilerPass
        Parameters:
        externs - Top of external JS tree
        root - Top of JS tree
      • visit

        public void visit​(NodeTraversal t,
                          Node n,
                          Node parent)
        Description copied from interface: NodeTraversal.Callback
        Visits a node in postorder (after its children). A node is visited in postorder iff NodeTraversal.Callback.shouldTraverse(NodeTraversal, Node, Node) returned true for its parent. In particular, the root node is never visited in postorder.

        Siblings are always visited left-to-right.

        Implementations can have side-effects (e.g. modify the parse tree). Removing the current node is legal, but removing or reordering nodes above the current node may cause nodes to be visited twice or not at all.

        Specified by:
        visit in interface NodeTraversal.Callback
        Parameters:
        t - The current traversal.
        n - The current node.
        parent - The parent of the current node.