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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 <algorithm>
#include <map>
#include <ostream>
#include <string>
#include <vector>
#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, cmListFileBacktrace bt);
cmLinkItem(cmGeneratorTarget const* t, cmListFileBacktrace bt);
std::string const& AsStr() const;
cmGeneratorTarget const* Target = nullptr;
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;
};
struct cmOptionalLinkInterface : public cmLinkInterface
{
bool LibrariesDone = false;
bool AllDone = false;
bool Exists = false;
const char* ExplicitLibraries = nullptr;
};
struct cmHeadToLinkInterfaceMap
: public std::map<cmGeneratorTarget const*, cmOptionalLinkInterface>
{
};
struct cmLinkImplementation : public cmLinkImplementationLibraries
{
// Languages whose runtime libraries must be linked.
std::vector<std::string> Languages;
};
// 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 (std::find(debugConfigs.begin(), debugConfigs.end(), configUpper) !=
debugConfigs.end()) {
return DEBUG_LibraryType;
}
// The current configuration is not a debug configuration.
return OPTIMIZED_LibraryType;
}
#endif
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