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86578eccf2
Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
89 lines
2.9 KiB
C++
89 lines
2.9 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 "cmGraphAdjacencyList.h"
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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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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);
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void AddTargetDepend(int depender_index, cmGeneratorTarget const* dependee,
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bool linking);
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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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std::set<std::string>& emitted);
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void AddInterfaceDepends(int depender_index,
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cmGeneratorTarget const* dependee,
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const std::string& config,
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std::set<std::string>& 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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typedef cmGraphNodeList NodeList;
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typedef cmGraphEdgeList EdgeList;
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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 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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