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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 (7f29bbe6enabled 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.
89 lines
2.6 KiB
C++
89 lines
2.6 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 <string>
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#include <vector>
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#include <cm/string_view>
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#include "cmLinkedTree.h"
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#include "cmPolicies.h"
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#include "cmStateTypes.h"
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class cmState;
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class cmStateDirectory;
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class cmStateSnapshot
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{
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public:
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cmStateSnapshot(cmState* state = nullptr);
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cmStateSnapshot(cmState* state, cmStateDetail::PositionType position);
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std::string const* GetDefinition(std::string const& name) const;
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bool IsInitialized(std::string const& name) const;
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void SetDefinition(std::string const& name, cm::string_view value);
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void RemoveDefinition(std::string const& name);
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std::vector<std::string> ClosureKeys() const;
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bool RaiseScope(std::string const& var, const char* varDef);
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void SetListFile(std::string const& listfile);
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std::string GetExecutionListFile() const;
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std::vector<cmStateSnapshot> GetChildren();
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bool IsValid() const;
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cmStateSnapshot GetBuildsystemDirectory() const;
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cmStateSnapshot GetBuildsystemDirectoryParent() const;
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cmStateSnapshot GetCallStackParent() const;
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cmStateSnapshot GetCallStackBottom() const;
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cmStateEnums::SnapshotType GetType() const;
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void SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
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cmPolicies::PolicyStatus GetPolicy(cmPolicies::PolicyID id,
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bool parent_scope = false) const;
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bool HasDefinedPolicyCMP0011();
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void PushPolicy(cmPolicies::PolicyMap const& entry, bool weak);
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bool PopPolicy();
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bool CanPopPolicyScope();
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cmState* GetState() const;
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cmStateDirectory GetDirectory() const;
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void SetProjectName(std::string const& name);
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std::string GetProjectName() const;
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void InitializeFromParent_ForSubdirsCommand();
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struct StrictWeakOrder
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{
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bool operator()(const cmStateSnapshot& lhs,
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const cmStateSnapshot& rhs) const;
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};
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void SetDirectoryDefinitions();
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void SetDefaultDefinitions();
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private:
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friend bool operator==(const cmStateSnapshot& lhs,
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const cmStateSnapshot& rhs);
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friend bool operator!=(const cmStateSnapshot& lhs,
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const cmStateSnapshot& rhs);
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friend class cmState;
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friend class cmStateDirectory;
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friend struct StrictWeakOrder;
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void InitializeFromParent();
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cmState* State;
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cmStateDetail::PositionType Position;
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};
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bool operator==(const cmStateSnapshot& lhs, const cmStateSnapshot& rhs);
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bool operator!=(const cmStateSnapshot& lhs, const cmStateSnapshot& rhs);
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