Function copyAstNode

copyAstNode<T extends AstNode = AstNode>(
    node: T,
    buildReference: (
        node: AstNode,
        property: string,
        refNode: undefined | CstNode,
        refText: string,
        origReference: Reference<AstNode>,
    ) => Reference<AstNode>,
    trace?: Map<AstNode, AstNode>,
): T
Creates a deep copy of the specified AST node. The resulting copy will only contain semantically relevant information, such as the $type property and AST properties.
Type Parameters
- T extends AstNode = AstNode
Parameters
- node: T
  The AST node to deeply copy.
- buildReference: (
      node: AstNode,
      property: string,
      refNode: undefined | CstNode,
      refText: string,
      origReference: Reference<AstNode>,
  ) => Reference<AstNode>
  References are not copied, instead this function is called to rebuild them.
- Optionaltrace: Map<AstNode, AstNode>
  For the sake of tracking copied nodes and their originals a trace map can be provided (optional).
Returns T
- Defined in packages/langium/src/utils/ast-utils.ts:270