/*
 * Copyright 2018 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrResourceProviderPriv_DEFINED
#define GrResourceProviderPriv_DEFINED

#include "src/gpu/GrResourceProvider.h"

/** Class that adds methods to GrResourceProvider that are only intended for use internal to Skia.
    This class is purely a privileged window into GrResourceProvider. It should never have
    additional data members or virtual methods. */
class GrResourceProviderPriv {
public:
    GrGpu* gpu() { return fResourceProvider->gpu(); }

private:
    explicit GrResourceProviderPriv(GrResourceProvider* provider) : fResourceProvider(provider) {}
    GrResourceProviderPriv(const GrResourceProviderPriv&) = delete;
    GrResourceProviderPriv& operator=(const GrResourceProviderPriv&) = delete;

    // No taking addresses of this type.
    const GrResourceProviderPriv* operator&() const;
    GrResourceProviderPriv* operator&();

    GrResourceProvider* fResourceProvider;
    friend class GrResourceProvider; // to construct/copy this type
};

inline GrResourceProviderPriv GrResourceProvider::priv() { return GrResourceProviderPriv(this); }

inline const GrResourceProviderPriv GrResourceProvider::priv() const {  // NOLINT(readability-const-return-type)
    return GrResourceProviderPriv(const_cast<GrResourceProvider*>(this));
}

#endif