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value.h
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value.h
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/**************************************************************************/
/* */
/* WWIV Version 5 */
/* Copyright (C)2020, WWIV Software Services */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, */
/* software distributed under the License is distributed on an */
/* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, */
/* either express or implied. See the License for the specific */
/* language governing permissions and limitations under the License. */
/**************************************************************************/
#ifndef INCLUDED_SDK_ACS_VALUE_H
#define INCLUDED_SDK_ACS_VALUE_H
#include "core/parser/ast.h"
#include "sdk/user.h"
#include <any>
#include <iostream>
#include <memory>
#include <string>
namespace wwiv::sdk::acs {
class Ar {
public:
explicit Ar(int ar);
// Don't be explicit so that we can let the equality operators
// work easily below.
// ReSharper disable once CppNonExplicitConvertingConstructor
Ar(char ar);
// ReSharper disable once CppNonExplicitConvertingConstructor
Ar(const std::string& ar);
// ReSharper disable once CppNonExplicitConvertingConstructor
Ar(const char* ar) : Ar(std::string(ar)) {}
[[nodiscard]] bool eq(const Ar& that) const;
[[nodiscard]] std::string as_string() const;
[[nodiscard]] int as_integer() const;
uint16_t ar_;
};
inline bool operator==(const Ar& lhs, const Ar& rhs) { return lhs.eq(rhs); }
inline bool operator!=(const Ar& lhs, const Ar& rhs) { return !lhs.eq(rhs); }
std::ostream& operator<<(std::ostream& os, const Ar& a);
enum class ValueType { unknown, number, string, boolean, ar };
class Value {
public:
Value() : value_type(ValueType::unknown) {}
explicit Value(bool v) : value_type(ValueType::boolean), value_(std::make_any<bool>(v)) {}
explicit Value(int v) : value_type(ValueType::number), value_(std::make_any<int>(v)) {}
explicit Value(const std::string& v) : value_type(ValueType::string), value_(std::make_any<std::string>(v)) {}
explicit Value(const char* v) : Value(std::string(v)) {}
explicit Value(Ar a) : value_type(ValueType::ar), value_(std::make_any<Ar>(a)) {}
[[nodiscard]] int as_number();
[[nodiscard]] std::string as_string();
[[nodiscard]] bool as_boolean();
[[nodiscard]] Ar as_ar();
[[nodiscard]] bool is_boolean() const { return value_type == ValueType::boolean; }
[[nodiscard]] static Value eval(Value l, wwiv::core::parser::Operator op, Value r);
friend bool operator==(const Ar& lhs, const Ar& rhs);
friend bool operator!=(const Ar& lhs, const Ar& rhs);
friend std::ostream& operator<<(std::ostream& os, const Value& a);
private:
ValueType value_type;
std::any value_;
};
std::ostream& operator<<(std::ostream& os, const Value& a);
}
#endif