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#ifndef SLANG_CORE_STD_WRITERS_H
#define SLANG_CORE_STD_WRITERS_H

#include "slang-com-ptr.h"
#include "slang-writer.h"

namespace Slang
{

/* Holds standard writers for the channels */
class StdWriters : public RefObject
{
public:
    ISlangWriter* getWriter(SlangWriterChannel chan) const { return m_writers[chan]; }
    void setWriter(SlangWriterChannel chan, ISlangWriter* writer) { m_writers[chan] = writer; }

    /// Flush all the set writers
    void flushWriters();

    /// Ctor
    StdWriters() {}

    /// Initialize a default context
    static RefPtr<StdWriters> createDefault();
    static RefPtr<StdWriters> initDefaultSingleton();

    static StdWriters* getSingleton() { return s_singleton; }
    static void setSingleton(StdWriters* context) { s_singleton = context; }

    static WriterHelper getError()
    {
        return getSingleton()->getWriter(SLANG_WRITER_CHANNEL_STD_ERROR);
    }
    static WriterHelper getOut()
    {
        return getSingleton()->getWriter(SLANG_WRITER_CHANNEL_STD_OUTPUT);
    }
    static WriterHelper getDiagnostic()
    {
        return getSingleton()->getWriter(SLANG_WRITER_CHANNEL_DIAGNOSTIC);
    }

protected:
    ComPtr<ISlangWriter> m_writers[SLANG_WRITER_CHANNEL_COUNT_OF];

    static StdWriters* s_singleton;
};

// --------------------------------------------------------------------------
inline void StdWriters::flushWriters()
{
    for (Index i = 0; i < Count(SLANG_WRITER_CHANNEL_COUNT_OF); ++i)
    {
        auto writer = m_writers[i];
        if (writer)
        {
            writer->flush();
        }
    }
}

} // namespace Slang

#endif