Factory.h

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//-
// ================================================================================================
// Copyright 2024 Autodesk, Inc.  All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license agreement provided
// at the time of installation or download, or which otherwise accompanies this software in
// either electronic or hard copy form.
// ================================================================================================
//+
 
 
#ifndef BIFROSTGRAPH_EXECUTOR_FACTORY_H
#define BIFROSTGRAPH_EXECUTOR_FACTORY_H
 
#include <BifrostGraph/Executor/Owner.h>
#include <stdexcept>
#include <utility>
 
namespace BifrostGraph {
namespace Executor {
 
template <typename T, typename... Args>
Owner<T> makeOwner(Args&&... args) {
    Owner<T> owner{new T(std::forward<Args>(args)...)};
    if (!owner || !owner->isValid()) {
        throw std::logic_error(
            "makeOwner<T>(...) failed: "
            "the newly allocated object was invalid.");
    }
    return owner;
}
 
template <typename P>
using DeleterFunc = void (*)(P* p);
 
template <typename T, typename... Args>
Owner<T> makeOwner(DeleterFunc<T> d, Args&&... args) {
    Owner<T> owner{new T(std::forward<Args>(args)...), d};
    if (!owner || !owner->isValid()) {
        throw std::logic_error(
            "makeOwner<T>(DeleterFunc<T>, ...) failed: "
            "the newly allocated object was invalid.");
    }
    return owner;
}
 
#define EXECUTOR_DECLARE_MAKE_OWNER_FRIENDSHIP()                                               \
    template <typename T, typename... Args>                                                    \
    friend BifrostGraph::Executor::Owner<T> BifrostGraph::Executor::makeOwner(Args&&... args); \
    template <typename T, typename... Args>                                                    \
    friend BifrostGraph::Executor::Owner<T> BifrostGraph::Executor::makeOwner(                 \
        void (*deleterFunc)(T * p), Args&&... args)
 
 
} // namespace Executor
} // namespace BifrostGraph
 
#endif // BIFROSTGRAPH_EXECUTOR_FACTORY_H