Definition for ASTVisitor2. Not used anymore, only a code demo.

types.ts

/**
 * Visitor used for the new transformer.
 * It does not use _context as the other Visitor, and is more based around returning the new nodes instead of adding them to _context
 */
export interface ASTVisitor2 {
  /** The Program visitor will only have one usecase: it returns the new AST  */
  Program: {
    enter: (node: SimpleAST) => TransformedAST;
  };

  /**
   * Call Expression visitor will have two use cases:
   *  1. Parent is the root node, therefore return an Expression
   *  2. Parent node is another CallExpression, therefore return a new call expression
   */
  CallExpression: {
    enter:
      | ((
          node: CallExpressionNode,
          parent: SimpleAST
        ) => ExpressionStatementNode)
      | ((
          node: CallExpressionNode,
          parent: CallExpressionNode
        ) => TransformedCallExpressionNode);
  };

  /** String Literal has a simple use case: return a new String Literal */
  StringLiteral: {
    enter: (
      node: StringLiteral,
      parent: CallExpressionNode
    ) => StringLiteralNode;
  };

  /** Number Literal has a simple use case: return a new Number Literal */
  NumberLiteral: {
    enter: (
      node: NumberLiteralNode,
      parent: CallExpressionNode
    ) => NumberLiteralNode;
  };
}