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e5cd39ca80
To handle safely the values used by CMake variables and properties, introduce the class cmProp as a replacement from the simple pointer to std::string instance.
103 lines
3.5 KiB
C++
103 lines
3.5 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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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <string>
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#include "cmListFileCache.h"
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#include "cmProperty.h"
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#include "cmStateTypes.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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class cmMessenger;
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class cmTargetPropertyComputer
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{
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public:
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template <typename Target>
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static cmProp GetProperty(Target const* tgt, const std::string& prop,
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cmMessenger* messenger,
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cmListFileBacktrace const& context)
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{
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if (cmProp loc = GetLocation(tgt, prop, messenger, context)) {
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return loc;
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}
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if (cmSystemTools::GetFatalErrorOccured()) {
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return nullptr;
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}
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if (prop == "SOURCES") {
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return GetSources(tgt, messenger, context);
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}
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return nullptr;
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}
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private:
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static bool HandleLocationPropertyPolicy(std::string const& tgtName,
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cmMessenger* messenger,
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cmListFileBacktrace const& context);
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template <typename Target>
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static const std::string& ComputeLocationForBuild(Target const* tgt);
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template <typename Target>
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static const std::string& ComputeLocation(Target const* tgt,
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std::string const& config);
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template <typename Target>
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static cmProp GetLocation(Target const* tgt, std::string const& prop,
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cmMessenger* messenger,
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cmListFileBacktrace const& context)
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{
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// Watch for special "computed" properties that are dependent on
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// other properties or variables. Always recompute them.
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if (tgt->GetType() == cmStateEnums::EXECUTABLE ||
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tgt->GetType() == cmStateEnums::STATIC_LIBRARY ||
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tgt->GetType() == cmStateEnums::SHARED_LIBRARY ||
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tgt->GetType() == cmStateEnums::MODULE_LIBRARY ||
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tgt->GetType() == cmStateEnums::UNKNOWN_LIBRARY) {
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static const std::string propLOCATION = "LOCATION";
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if (prop == propLOCATION) {
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if (!tgt->IsImported() &&
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!HandleLocationPropertyPolicy(tgt->GetName(), messenger,
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context)) {
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return nullptr;
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}
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return cmProp(ComputeLocationForBuild(tgt));
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}
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// Support "LOCATION_<CONFIG>".
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if (cmHasLiteralPrefix(prop, "LOCATION_")) {
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if (!tgt->IsImported() &&
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!HandleLocationPropertyPolicy(tgt->GetName(), messenger,
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context)) {
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return nullptr;
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}
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std::string configName = prop.substr(9);
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return cmProp(ComputeLocation(tgt, configName));
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}
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// Support "<CONFIG>_LOCATION".
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if (cmHasLiteralSuffix(prop, "_LOCATION") &&
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!cmHasLiteralPrefix(prop, "XCODE_ATTRIBUTE_")) {
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std::string configName(prop.c_str(), prop.size() - 9);
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if (configName != "IMPORTED") {
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if (!tgt->IsImported() &&
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!HandleLocationPropertyPolicy(tgt->GetName(), messenger,
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context)) {
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return nullptr;
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}
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return cmProp(ComputeLocation(tgt, configName));
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}
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}
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}
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return nullptr;
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}
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template <typename Target>
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static cmProp GetSources(Target const* tgt, cmMessenger* messenger,
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cmListFileBacktrace const& context);
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};
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