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- /* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
- file Copyright.txt or https://cmake.org/licensing for details. */
- #ifndef cmLinkItem_h
- #define cmLinkItem_h
- #include "cmConfigure.h" // IWYU pragma: keep
- #include <map>
- #include <ostream>
- #include <string>
- #include <vector>
- #include "cmAlgorithms.h"
- #include "cmListFileCache.h"
- #include "cmSystemTools.h"
- #include "cmTargetLinkLibraryType.h"
- class cmGeneratorTarget;
- // Basic information about each link item.
- class cmLinkItem
- {
- std::string String;
- public:
- cmLinkItem();
- cmLinkItem(std::string s, bool c, cmListFileBacktrace bt);
- cmLinkItem(cmGeneratorTarget const* t, bool c, cmListFileBacktrace bt);
- std::string const& AsStr() const;
- cmGeneratorTarget const* Target = nullptr;
- bool Cross = false;
- cmListFileBacktrace Backtrace;
- friend bool operator<(cmLinkItem const& l, cmLinkItem const& r);
- friend bool operator==(cmLinkItem const& l, cmLinkItem const& r);
- friend std::ostream& operator<<(std::ostream& os, cmLinkItem const& item);
- };
- class cmLinkImplItem : public cmLinkItem
- {
- public:
- cmLinkImplItem();
- cmLinkImplItem(cmLinkItem item, bool fromGenex);
- bool FromGenex = false;
- };
- /** The link implementation specifies the direct library
- dependencies needed by the object files of the target. */
- struct cmLinkImplementationLibraries
- {
- // Libraries linked directly in this configuration.
- std::vector<cmLinkImplItem> Libraries;
- // Libraries linked directly in other configurations.
- // Needed only for OLD behavior of CMP0003.
- std::vector<cmLinkItem> WrongConfigLibraries;
- };
- struct cmLinkInterfaceLibraries
- {
- // Libraries listed in the interface.
- std::vector<cmLinkItem> Libraries;
- // Whether the list depends on a genex referencing the head target.
- bool HadHeadSensitiveCondition = false;
- };
- struct cmLinkInterface : public cmLinkInterfaceLibraries
- {
- // Languages whose runtime libraries must be linked.
- std::vector<std::string> Languages;
- // Shared library dependencies needed for linking on some platforms.
- std::vector<cmLinkItem> SharedDeps;
- // Number of repetitions of a strongly connected component of two
- // or more static libraries.
- unsigned int Multiplicity = 0;
- // Libraries listed for other configurations.
- // Needed only for OLD behavior of CMP0003.
- std::vector<cmLinkItem> WrongConfigLibraries;
- bool ImplementationIsInterface = false;
- // Whether the list depends on a link language genex.
- bool HadLinkLanguageSensitiveCondition = false;
- };
- struct cmOptionalLinkInterface : public cmLinkInterface
- {
- bool LibrariesDone = false;
- bool AllDone = false;
- bool Exists = false;
- bool Explicit = false;
- };
- struct cmHeadToLinkInterfaceMap
- : public std::map<cmGeneratorTarget const*, cmOptionalLinkInterface>
- {
- };
- struct cmLinkImplementation : public cmLinkImplementationLibraries
- {
- // Languages whose runtime libraries must be linked.
- std::vector<std::string> Languages;
- // Whether the list depends on a link language genex.
- bool HadLinkLanguageSensitiveCondition = false;
- };
- // Cache link implementation computation from each configuration.
- struct cmOptionalLinkImplementation : public cmLinkImplementation
- {
- bool LibrariesDone = false;
- bool LanguagesDone = false;
- bool HadHeadSensitiveCondition = false;
- };
- /** Compute the link type to use for the given configuration. */
- inline cmTargetLinkLibraryType CMP0003_ComputeLinkType(
- const std::string& config, std::vector<std::string> const& debugConfigs)
- {
- // No configuration is always optimized.
- if (config.empty()) {
- return OPTIMIZED_LibraryType;
- }
- // Check if any entry in the list matches this configuration.
- std::string configUpper = cmSystemTools::UpperCase(config);
- if (cmContains(debugConfigs, configUpper)) {
- return DEBUG_LibraryType;
- }
- // The current configuration is not a debug configuration.
- return OPTIMIZED_LibraryType;
- }
- #endif
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