DasRuntime.h

#pragma once
#include "Engine/Core/Types.h"
#include <memory>
 
namespace enzo::expr {
 
class ExpressionContext;
 
class CompiledScript
{
  public:
    ~CompiledScript();
 
    bool evalFloat(
        const String& functionName,
        const ExpressionContext* context,
        floatT& result,
        String& error
    );
 
    bool evalInt(
        const String& functionName,
        const ExpressionContext* context,
        intT& result,
        String& error
    );
 
    bool evalString(
        const String& functionName,
        const ExpressionContext* context,
        String& result,
        String& error
    );
 
  private:
    friend class DasRuntime;
    CompiledScript();
 
    struct Impl;
    std::unique_ptr<Impl> impl_;
};
 
class DasRuntime
{
  public:
    static DasRuntime& instance();
 
    std::shared_ptr<CompiledScript>
    compile(const String& name, const String& source, String& error);
 
    DasRuntime(const DasRuntime&) = delete;
    DasRuntime& operator=(const DasRuntime&) = delete;
 
  private:
    DasRuntime();
    ~DasRuntime();
};
 
} // namespace enzo::expr