package main

file errwrap2.gop
ast.FuncDecl:
  Name:
    ast.Ident:
      Name: neg
  Type:
    ast.FuncType:
      Params:
        ast.FieldList:
          List:
            ast.Field:
              Names:
                ast.Ident:
                  Name: x
              Type:
                ast.Ident:
                  Name: string
      Results:
        ast.FieldList:
          List:
            ast.Field:
              Type:
                ast.Ident:
                  Name: int
            ast.Field:
              Type:
                ast.Ident:
                  Name: error
  Body:
    ast.BlockStmt:
      List:
        ast.ReturnStmt:
          Results:
            ast.UnaryExpr:
              Op: -
              X:
                ast.ErrWrapExpr:
                  X:
                    ast.CallExpr:
                      Fun:
                        ast.Ident:
                          Name: atoi
                      Args:
                        ast.Ident:
                          Name: x
                  Tok: ?
            ast.Ident:
              Name: nil