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93 lines
3.2 KiB
C++
93 lines
3.2 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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#ifndef cmComputeTargetDepends_h
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#define cmComputeTargetDepends_h
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <map>
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#include <set>
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#include <string>
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#include <vector>
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#include "cmGraphAdjacencyList.h"
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#include "cmListFileCache.h"
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class cmComputeComponentGraph;
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class cmGeneratorTarget;
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class cmGlobalGenerator;
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class cmLinkItem;
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class cmTargetDependSet;
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/** \class cmComputeTargetDepends
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* \brief Compute global interdependencies among targets.
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*
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* Static libraries may form cycles in the target dependency graph.
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* This class evaluates target dependencies globally and adjusts them
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* to remove cycles while preserving a safe build order.
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*/
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class cmComputeTargetDepends
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{
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public:
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cmComputeTargetDepends(cmGlobalGenerator* gg);
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~cmComputeTargetDepends();
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bool Compute();
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std::vector<cmGeneratorTarget const*> const& GetTargets() const
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{
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return this->Targets;
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}
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void GetTargetDirectDepends(cmGeneratorTarget const* t,
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cmTargetDependSet& deps);
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private:
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void CollectTargets();
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void CollectDepends();
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void CollectTargetDepends(int depender_index);
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void AddTargetDepend(int depender_index, cmLinkItem const& dependee_name,
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bool linking, bool cross);
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void AddTargetDepend(int depender_index, cmGeneratorTarget const* dependee,
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cmListFileBacktrace const& dependee_backtrace,
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bool linking, bool cross);
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bool ComputeFinalDepends(cmComputeComponentGraph const& ccg);
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void AddInterfaceDepends(int depender_index, cmLinkItem const& dependee_name,
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const std::string& config,
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std::set<cmLinkItem>& emitted);
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void AddInterfaceDepends(int depender_index,
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cmGeneratorTarget const* dependee,
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cmListFileBacktrace const& dependee_backtrace,
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const std::string& config,
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std::set<cmLinkItem>& emitted);
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cmGlobalGenerator* GlobalGenerator;
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bool DebugMode;
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bool NoCycles;
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// Collect all targets.
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std::vector<cmGeneratorTarget const*> Targets;
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std::map<cmGeneratorTarget const*, int> TargetIndex;
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// Represent the target dependency graph. The entry at each
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// top-level index corresponds to a depender whose dependencies are
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// listed.
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using NodeList = cmGraphNodeList;
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using EdgeList = cmGraphEdgeList;
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using Graph = cmGraphAdjacencyList;
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Graph InitialGraph;
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Graph FinalGraph;
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void DisplayGraph(Graph const& graph, const std::string& name);
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// Deal with connected components.
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void DisplayComponents(cmComputeComponentGraph const& ccg);
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bool CheckComponents(cmComputeComponentGraph const& ccg);
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void ComplainAboutBadComponent(cmComputeComponentGraph const& ccg, int c,
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bool strong = false);
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std::vector<int> ComponentHead;
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std::vector<int> ComponentTail;
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bool IntraComponent(std::vector<int> const& cmap, int c, int i, int* head,
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std::set<int>& emitted, std::set<int>& visited);
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};
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#endif
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