/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#include "cmLinkItem.h"

#include "cmGeneratorTarget.h"

#include <utility>  // IWYU pragma: keep

cmLinkItem::cmLinkItem()
: String()
, Target(nullptr)
{}

cmLinkItem::cmLinkItem(std::string const& n)
: String(n)
, Target(nullptr)
{}

cmLinkItem::cmLinkItem(cmGeneratorTarget const* t)
: String()
, Target(t)
{}

std::string const&
cmLinkItem::AsStr() const
{
    return this->Target ? this->Target->GetName() : this->String;
}

bool
operator<(cmLinkItem const& l, cmLinkItem const& r)
{
    // Order among targets.
    if(l.Target && r.Target)
    {
        return l.Target < r.Target;
    }
    // Order targets before strings.
    if(l.Target)
    {
        return true;
    }
    if(r.Target)
    {
        return false;
    }
    // Order among strings.
    return l.String < r.String;
}

bool
operator==(cmLinkItem const& l, cmLinkItem const& r)
{
    return l.Target == r.Target && l.String == r.String;
}

std::ostream&
operator<<(std::ostream& os, cmLinkItem const& item)
{
    return os << item.AsStr();
}

cmLinkImplItem::cmLinkImplItem()
: cmLinkItem()
, Backtrace()
, FromGenex(false)
{}

cmLinkImplItem::cmLinkImplItem(cmLinkItem item, cmListFileBacktrace const& bt,
                               bool fromGenex)
: cmLinkItem(std::move(item))
, Backtrace(bt)
, FromGenex(fromGenex)
{}
