Method operator()

eval/public/ast_traverse.cc:173–204

struct PostVisitor {
  void operator()(const ExprRecord& record) {
    const Expr* expr = record.expr;
    const SourcePosition position(expr->id(), record.source_info);
    switch (expr->expr_kind_case()) {
      case Expr::kConstExpr:
        visitor->PostVisitConst(&expr->const_expr(), expr, &position);
        break;
      case Expr::kIdentExpr:
        visitor->PostVisitIdent(&expr->ident_expr(), expr, &position);
        break;
      case Expr::kSelectExpr:
        visitor->PostVisitSelect(&expr->select_expr(), expr, &position);
        break;
      case Expr::kCallExpr:
        visitor->PostVisitCall(&expr->call_expr(), expr, &position);
        break;
      case Expr::kListExpr:
        visitor->PostVisitCreateList(&expr->list_expr(), expr, &position);
        break;
      case Expr::kStructExpr:
        visitor->PostVisitCreateStruct(&expr->struct_expr(), expr, &position);
        break;
      case Expr::kComprehensionExpr:
        visitor->PostVisitComprehension(&expr->comprehension_expr(), expr,
                                        &position);
        break;
      default:
        ABSL_LOG(ERROR) << "Unsupported Expr kind: " << expr->expr_kind_case();
    }

    visitor->PostVisitExpr(expr, &position);
  }

  void operator()(const ArgRecord& record) {
    const Expr* expr = record.expr;