Files
CMake/Source/cmLinkItem.cxx
Brad King fc7e4d1ed8 cmLinkItem: Convert to a "sum type" over a string and target pointer
Avoid exposing the item name implicitly as std::string.  When the item
is a target, avoid storing a second copy of its name.

Most link item construction is paired with calls to `FindTargetToLink`
to get the possible target pointer.  Rename these methods to
`ResolveLinkItem` and refactor them to construct the entire item.
2018-09-07 08:57:51 -04:00

73 lines
1.4 KiB
C++

/* 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)
{
}