/*

 * Copyright (c) 2021 Huawei Device Co., Ltd.

 * 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 USCRIPT_PARAM_H

#define USCRIPT_PARAM_H



#include <cstdint>

#include <string>

#include <vector>

#include "script_context.h"



namespace Uscript {

/**

 * 定义函数的参数，使用vector保存函数参数

 * 在定义函数时，实参，对应标识符表达式

 * 函数调用时，可能是标识符，也可能是字符串、整数、浮点数或者函数调用

 */

class UScriptExpression;



class ScriptParams {

public:

    friend class ScriptFunction;

    static const int32_t g_maxParamNumber = 5;



    ScriptParams() {}

    ~ScriptParams();

    void AddParams(UScriptExpression *expression);

    const std::vector<UScriptExpression*> GetParams() const

    {

        return expressionList_;

    }



    static ScriptParams* CreateParams(UScriptExpression *expression);

    static ScriptParams* AddParams(ScriptParams *params, UScriptExpression *expression);



private:

    std::vector<UScriptExpression*> expressionList_ {};

};

} // namespace Uscript

#endif // HS_PARAM_H