Method VisitBinary

tools/cel_unparser.cc:437–461

}

absl::Status Unparser::VisitBinary(const Expr::Call& expr,
                                   const std::string& op) {
  if (expr.args_size() != 2) {
    return absl::InvalidArgumentError(
        absl::StrCat("Unexpected binary: ", expr.ShortDebugString()));
  }

  const auto& lhs = expr.args(0);
  const auto& rhs = expr.args(1);
  const auto& fun = expr.function();

  // add parens if the current operator is lower precedence than the lhs expr
  // operator.
  bool lhs_paren = IsComplexOperatorWithRespectTo(lhs, fun);
  // add parens if the current operator is lower precedence than the rhs expr
  // operator, or the same precedence and the operator is left recursive.
  bool rhs_paren = IsComplexOperatorWithRespectTo(rhs, fun);
  if (!rhs_paren && IsOperatorLeftRecursive(fun)) {
    rhs_paren = IsOperatorSamePrecedence(fun, rhs);
  }

  CEL_RETURN_IF_ERROR(VisitMaybeNested(lhs, lhs_paren));
  Print(kSpace, op, kSpace);
  return VisitMaybeNested(rhs, rhs_paren);
}

absl::Status Unparser::VisitMaybeNested(const Expr& expr, bool nested) {
  if (nested) {