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bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6 enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <set>
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class cmGeneratorTarget;
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/** One edge in the global target dependency graph.
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It may be marked as a 'link' or 'util' edge or both. */
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class cmTargetDepend
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{
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cmGeneratorTarget const* Target;
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// The set order depends only on the Target, so we use
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// mutable members to achieve a map with set syntax.
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mutable bool Link;
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mutable bool Util;
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mutable bool Cross;
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mutable cmListFileBacktrace Backtrace;
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public:
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cmTargetDepend(cmGeneratorTarget const* t)
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: Target(t)
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, Link(false)
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, Util(false)
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, Cross(false)
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{
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}
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operator cmGeneratorTarget const*() const { return this->Target; }
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cmGeneratorTarget const* operator->() const { return this->Target; }
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cmGeneratorTarget const& operator*() const { return *this->Target; }
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friend bool operator<(cmTargetDepend const& l, cmTargetDepend const& r)
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{
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return l.Target < r.Target;
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}
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void SetType(bool strong) const
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{
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if (strong) {
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this->Util = true;
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} else {
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this->Link = true;
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}
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}
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void SetCross(bool cross) const { this->Cross = cross; }
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void SetBacktrace(cmListFileBacktrace const& bt) const
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{
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this->Backtrace = bt;
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}
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bool IsLink() const { return this->Link; }
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bool IsUtil() const { return this->Util; }
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bool IsCross() const { return this->Cross; }
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cmListFileBacktrace const& GetBacktrace() const { return this->Backtrace; }
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};
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/** Unordered set of (direct) dependencies of a target. */
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class cmTargetDependSet : public std::set<cmTargetDepend>
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{
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};
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