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4987e17f46
- Move Tarjan algorithm from cmComputeTargetDepends
into its own class cmComputeComponentGraph
- Use cmComputeComponentGraph to identify the component DAG
of link dependencies in cmComputeLinkDepends
- Emit non-trivial component members more than once but always
in a contiguous group on the link line
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmComputeTargetDepends_h
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#define cmComputeTargetDepends_h
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#include "cmStandardIncludes.h"
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#include "cmGraphAdjacencyList.h"
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#include <stack>
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class cmComputeComponentGraph;
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class cmGlobalGenerator;
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class cmTarget;
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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<cmTarget*> const& GetTargets() const { return this->Targets; }
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void GetTargetDirectDepends(cmTarget* t, std::set<cmTarget*>& 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, const char* dependee_name);
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void ComputeFinalDepends(cmComputeComponentGraph const& ccg);
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cmGlobalGenerator* GlobalGenerator;
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bool DebugMode;
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// Collect all targets.
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std::vector<cmTarget*> Targets;
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std::map<cmTarget*, 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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typedef cmGraphNodeList NodeList;
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typedef cmGraphAdjacencyList Graph;
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Graph InitialGraph;
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Graph FinalGraph;
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void DisplayGraph(Graph const& graph, const char* 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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};
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#endif
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