Procs

func copyLineInfoTo(info, arg: NimNode): NimNode {....raises: [], tags: [],
    forbids: [].}

  Source

func morphInto(prototype: NimNode; kind: NimNodeKind; indices: Slice[int]): NimNode {.
    ...raises: [], tags: [], forbids: [].}

Create a new node of type kind and add prototype[indices] as its children.   Source

func morphInto(prototype: NimNode; kind: NimNodeKind; start = 0): NimNode {.
    ...raises: [], tags: [], forbids: [].}

Create a new node of type kind and add prototype[start ..^ 1] as its children.   Source