PythonExecutor.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "ScriptExecutor.hpp"
 
struct _object;
typedef struct _object PyObject;
 
AST_NAMESPACE_BEGIN
 
class PythonAPI;
 
class AST_SCRIPT_API PythonExecutor : public ScriptExecutor
{
public:
    PythonExecutor();
 
    PythonExecutor(const PythonExecutor&) = delete;
    PythonExecutor& operator=(const PythonExecutor&) = delete;
 
    ~PythonExecutor() override;
 
    errc_t initialize() override;
    void finalize() override;
    errc_t execute(StringView script, ScriptResult* resultOut = nullptr) override;
    errc_t evaluate(StringView expression, ScriptResult* resultOut = nullptr) override;
    std::string getLastError() const override;
 
    // 下面这些重载会隐藏基类同名的其他重载（含字符串字面量重载与类型护栏），需要显式引回
    using ScriptExecutor::setVariable;
 
    errc_t setVariable(StringView name, StringView value) override;
    errc_t setVariable(StringView name, double value) override;
    errc_t setVariable(StringView name, int value) override;
    errc_t setVariable(StringView name, bool value) override;
 
    errc_t getVariable(StringView name, std::string& value) const override;
    errc_t getVariable(StringView name, double& value) const override;
    errc_t getVariable(StringView name, int& value) const override;
    errc_t getVariable(StringView name, bool& value) const override;
 
protected:
    std::string captureError() const;
 
protected:
    PythonAPI* api_;
    PyObject* globals_{nullptr};  // 私有无名 dict，每个 executor 独立命名空间
    mutable std::string lastError_{};
};
 
AST_NAMESPACE_END