Method Evaluate

eval/eval/equality_steps.cc:113–126

      : ExpressionStepBase(expr_id), negation_(negation) {}

  absl::Status Evaluate(ExecutionFrame* frame) const override {
    if (!frame->value_stack().HasEnough(2)) {
      return absl::Status(absl::StatusCode::kInternal, "Value stack underflow");
    }
    auto args = frame->value_stack().GetSpan(2);
    auto attrs = frame->value_stack().GetAttributeSpan(2);

    CEL_ASSIGN_OR_RETURN(Value result,
                         EvaluateEquality(*frame, args[0], attrs[0], args[1],
                                          attrs[1], negation_));

    frame->value_stack().PopAndPush(2, std::move(result));
    return absl::OkStatus();
  }

 private:
  bool negation_;