cmState::GetInitializedCacheValue: return cmProp

cmProp alias is used; no actual change in type

Source/cmCommandArgumentParserHelper.cxx

@@ -69,8 +69,7 @@ const char* cmCommandArgumentParserHelper::ExpandSpecialVariable(
     return "";
   }
   if (strcmp(key, "CACHE") == 0) {
-    if (const std::string* c =
-          this->Makefile->GetState()->GetInitializedCacheValue(var)) {
+    if (cmProp c = this->Makefile->GetState()->GetInitializedCacheValue(var)) {
       if (this->EscapeQuotes) {
         return this->AddString(cmEscapeQuotes(*c));
       }

Source/cmExtraEclipseCDT4Generator.cxx

@@ -243,8 +243,7 @@ void cmExtraEclipseCDT4Generator::AddEnvVar(std::ostream& out,
   const bool envVarSet = cmSystemTools::GetEnv(envVar, envVarValue);
 
   std::string cacheEntryName = cmStrCat("CMAKE_ECLIPSE_ENVVAR_", envVar);
-  const std::string* cacheValue =
-    lg.GetState()->GetInitializedCacheValue(cacheEntryName);
+  cmProp cacheValue = lg.GetState()->GetInitializedCacheValue(cacheEntryName);
 
   // now we have both, decide which one to use
   std::string valueToUse;

Source/cmGlobalGenerator.cxx

@@ -232,7 +232,7 @@ void cmGlobalGenerator::ResolveLanguageCompiler(const std::string& lang,
   if (!optional && (path.empty() || !cmSystemTools::FileExists(path))) {
     return;
   }
-  const std::string* cname =
+  cmProp cname =
     this->GetCMakeInstance()->GetState()->GetInitializedCacheValue(langComp);
   std::string changeVars;
   if (cname && !optional) {
@@ -2057,8 +2057,7 @@ void cmGlobalGenerator::AddMakefile(std::unique_ptr<cmMakefile> mf)
 
   // update progress
   // estimate how many lg there will be
-  const std::string* numGenC =
-    this->CMakeInstance->GetState()->GetInitializedCacheValue(
+  cmProp numGenC = this->CMakeInstance->GetState()->GetInitializedCacheValue(
     "CMAKE_NUMBER_OF_MAKEFILES");
 
   if (!numGenC) {

Source/cmMakefile.cxx

@@ -1880,8 +1880,7 @@ void cmMakefile::AddCacheDefinition(const std::string& name, const char* value,
                                     cmStateEnums::CacheEntryType type,
                                     bool force)
 {
-  const std::string* existingValue =
-    this->GetState()->GetInitializedCacheValue(name);
+  cmProp existingValue = this->GetState()->GetInitializedCacheValue(name);
   // must be outside the following if() to keep it alive long enough
   std::string nvalue;
 
@@ -2682,7 +2681,7 @@ const std::string& cmMakefile::GetRequiredDefinition(
 
 bool cmMakefile::IsDefinitionSet(const std::string& name) const
 {
-  const std::string* def = this->StateSnapshot.GetDefinition(name);
+  cmProp def = this->StateSnapshot.GetDefinition(name);
   if (!def) {
     def = this->GetState()->GetInitializedCacheValue(name);
   }
@@ -2699,7 +2698,7 @@ bool cmMakefile::IsDefinitionSet(const std::string& name) const
 
 const std::string* cmMakefile::GetDef(const std::string& name) const
 {
-  const std::string* def = this->StateSnapshot.GetDefinition(name);
+  cmProp def = this->StateSnapshot.GetDefinition(name);
   if (!def) {
     def = this->GetState()->GetInitializedCacheValue(name);
   }

Source/cmServerProtocol.cxx

@@ -26,6 +26,8 @@
 #include "cmSystemTools.h"
 #include "cmake.h"
 
+using cmProp = const std::string*; // just to silence IWYU
+
 // Get rid of some windows macros:
 #undef max
 
@@ -562,7 +564,7 @@ cmServerResponse cmServerProtocol1::ProcessConfigure(
 
   if (cm->LoadCache(buildDir)) {
     // build directory has been set up before
-    const std::string* cachedSourceDir =
+    cmProp cachedSourceDir =
       cm->GetState()->GetInitializedCacheValue("CMAKE_HOME_DIRECTORY");
     if (!cachedSourceDir) {
       return request.ReportError("No CMAKE_HOME_DIRECTORY found in cache.");
@@ -572,7 +574,7 @@ cmServerResponse cmServerProtocol1::ProcessConfigure(
       cm->SetHomeDirectory(sourceDir);
     }
 
-    const std::string* cachedGenerator =
+    cmProp cachedGenerator =
       cm->GetState()->GetInitializedCacheValue("CMAKE_GENERATOR");
     if (cachedGenerator) {
       if (gg && gg->GetName() != *cachedGenerator) {

Source/cmState.cxx

@@ -155,8 +155,7 @@ std::string cmState::GetSafeCacheEntryValue(std::string const& key) const
   return std::string();
 }
 
-const std::string* cmState::GetInitializedCacheValue(
-  std::string const& key) const
+cmProp cmState::GetInitializedCacheValue(std::string const& key) const
 {
   return this->CacheManager->GetInitializedCacheValue(key);
 }

Source/cmState.h

@@ -92,7 +92,7 @@ public:
   std::vector<std::string> GetCacheEntryKeys() const;
   cmProp GetCacheEntryValue(std::string const& key) const;
   std::string GetSafeCacheEntryValue(std::string const& key) const;
-  const std::string* GetInitializedCacheValue(std::string const& key) const;
+  cmProp GetInitializedCacheValue(std::string const& key) const;
   cmStateEnums::CacheEntryType GetCacheEntryType(std::string const& key) const;
   void SetCacheEntryValue(std::string const& key, std::string const& value);
   void SetCacheValue(std::string const& key, std::string const& value);

Source/cmake.cxx

@@ -313,8 +313,7 @@ bool cmake::SetCacheArgs(const std::vector<std::string>& args)
         bool haveValue = false;
         std::string cachedValue;
         if (this->WarnUnusedCli) {
-          if (const std::string* v =
-                this->State->GetInitializedCacheValue(var)) {
+          if (cmProp v = this->State->GetInitializedCacheValue(var)) {
             haveValue = true;
             cachedValue = *v;
           }
@@ -1529,9 +1528,8 @@ int cmake::ActualConfigure()
 
   // no generator specified on the command line
   if (!this->GlobalGenerator) {
-    const std::string* genName =
-      this->State->GetInitializedCacheValue("CMAKE_GENERATOR");
-    const std::string* extraGenName =
+    cmProp genName = this->State->GetInitializedCacheValue("CMAKE_GENERATOR");
+    cmProp extraGenName =
       this->State->GetInitializedCacheValue("CMAKE_EXTRA_GENERATOR");
     if (genName) {
       std::string fullName =
@@ -1554,8 +1552,7 @@ int cmake::ActualConfigure()
     }
   }
 
-  const std::string* genName =
-    this->State->GetInitializedCacheValue("CMAKE_GENERATOR");
+  cmProp genName = this->State->GetInitializedCacheValue("CMAKE_GENERATOR");
   if (genName) {
     if (!this->GlobalGenerator->MatchesGeneratorName(*genName)) {
       std::string message =
@@ -1577,7 +1574,7 @@ int cmake::ActualConfigure()
                         cmStateEnums::INTERNAL);
   }
 
-  if (const std::string* instance =
+  if (cmProp instance =
         this->State->GetInitializedCacheValue("CMAKE_GENERATOR_INSTANCE")) {
     if (this->GeneratorInstanceSet && this->GeneratorInstance != *instance) {
       std::string message =
@@ -1594,7 +1591,7 @@ int cmake::ActualConfigure()
       "Generator instance identifier.", cmStateEnums::INTERNAL);
   }
 
-  if (const std::string* platformName =
+  if (cmProp platformName =
         this->State->GetInitializedCacheValue("CMAKE_GENERATOR_PLATFORM")) {
     if (this->GeneratorPlatformSet &&
         this->GeneratorPlatform != *platformName) {
@@ -1612,7 +1609,7 @@ int cmake::ActualConfigure()
                         "Name of generator platform.", cmStateEnums::INTERNAL);
   }
 
-  if (const std::string* tsName =
+  if (cmProp tsName =
         this->State->GetInitializedCacheValue("CMAKE_GENERATOR_TOOLSET")) {
     if (this->GeneratorToolsetSet && this->GeneratorToolset != *tsName) {
       std::string message =
@@ -1983,7 +1980,7 @@ std::string cmake::StripExtension(const std::string& file) const
 
 const char* cmake::GetCacheDefinition(const std::string& name) const
 {
-  const std::string* p = this->State->GetInitializedCacheValue(name);
+  cmProp p = this->State->GetInitializedCacheValue(name);
   return p ? p->c_str() : nullptr;
 }
 
@@ -2190,7 +2187,7 @@ void cmake::PrintGeneratorList()
 void cmake::UpdateConversionPathTable()
 {
   // Update the path conversion table with any specified file:
-  const std::string* tablepath =
+  cmProp tablepath =
     this->State->GetInitializedCacheValue("CMAKE_PATH_TRANSLATION_FILE");
 
   if (tablepath) {
@@ -2834,7 +2831,7 @@ bool cmake::Open(const std::string& dir, bool dryRun)
     std::cerr << "Error: could not find CMAKE_GENERATOR in Cache\n";
     return false;
   }
-  const std::string* extraGenName =
+  cmProp extraGenName =
     this->State->GetInitializedCacheValue("CMAKE_EXTRA_GENERATOR");
   std::string fullName =
     cmExternalMakefileProjectGenerator::CreateFullGeneratorName(