cmState::GetCacheEntryValue: return cmProp

15 files changed, 74 insertions, 76 deletions

diff --git a/Source/CursesDialog/cmCursesCacheEntryComposite.cxx b/Source/CursesDialog/cmCursesCacheEntryComposite.cxx
index 4d3131b..9a0d966 100644
--- a/Source/CursesDialog/cmCursesCacheEntryComposite.cxx
+++ b/Source/CursesDialog/cmCursesCacheEntryComposite.cxx
@@ -48,25 +48,25 @@ cmCursesCacheEntryComposite::cmCursesCacheEntryComposite(
     this->IsNewLabel = cm::make_unique<cmCursesLabelWidget>(1, 1, 1, 1, " ");
   }
 
-  const char* value = state->GetCacheEntryValue(key);
+  cmProp value = state->GetCacheEntryValue(key);
   assert(value);
   switch (state->GetCacheEntryType(key)) {
     case cmStateEnums::BOOL: {
       auto bw = cm::make_unique<cmCursesBoolWidget>(this->EntryWidth, 1, 1, 1);
-      bw->SetValueAsBool(cmIsOn(value));
+      bw->SetValueAsBool(cmIsOn(*value));
       this->Entry = std::move(bw);
       break;
     }
     case cmStateEnums::PATH: {
       auto pw = cm::make_unique<cmCursesPathWidget>(this->EntryWidth, 1, 1, 1);
-      pw->SetString(value);
+      pw->SetString(*value);
       this->Entry = std::move(pw);
       break;
     }
     case cmStateEnums::FILEPATH: {
       auto fpw =
         cm::make_unique<cmCursesFilePathWidget>(this->EntryWidth, 1, 1, 1);
-      fpw->SetString(value);
+      fpw->SetString(*value);
       this->Entry = std::move(fpw);
       break;
     }
@@ -78,12 +78,12 @@ cmCursesCacheEntryComposite::cmCursesCacheEntryComposite(
         for (std::string const& opt : cmExpandedList(stringsProp)) {
           ow->AddOption(opt);
         }
-        ow->SetOption(value);
+        ow->SetOption(*value);
         this->Entry = std::move(ow);
       } else {
         auto sw =
           cm::make_unique<cmCursesStringWidget>(this->EntryWidth, 1, 1, 1);
-        sw->SetString(value);
+        sw->SetString(*value);
         this->Entry = std::move(sw);
       }
       break;
diff --git a/Source/CursesDialog/cmCursesMainForm.cxx b/Source/CursesDialog/cmCursesMainForm.cxx
index 2c92835..9670595 100644
--- a/Source/CursesDialog/cmCursesMainForm.cxx
+++ b/Source/CursesDialog/cmCursesMainForm.cxx
@@ -161,7 +161,7 @@ void cmCursesMainForm::RePost()
     // If normal mode, count only non-advanced entries
     this->NumberOfVisibleEntries = 0;
     for (cmCursesCacheEntryComposite& entry : this->Entries) {
-      const char* existingValue =
+      cmProp existingValue =
         this->CMakeInstance->GetState()->GetCacheEntryValue(entry.GetValue());
       bool advanced =
         this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
@@ -182,7 +182,7 @@ void cmCursesMainForm::RePost()
 
   // Assign fields
   for (cmCursesCacheEntryComposite& entry : this->Entries) {
-    const char* existingValue =
+    cmProp existingValue =
       this->CMakeInstance->GetState()->GetCacheEntryValue(entry.GetValue());
     bool advanced =
       this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
@@ -241,7 +241,7 @@ void cmCursesMainForm::Render(int left, int top, int width, int height)
     // If normal, display only non-advanced entries
     this->NumberOfVisibleEntries = 0;
     for (cmCursesCacheEntryComposite& entry : this->Entries) {
-      const char* existingValue =
+      cmProp existingValue =
         this->CMakeInstance->GetState()->GetCacheEntryValue(entry.GetValue());
       bool advanced =
         this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
@@ -259,7 +259,7 @@ void cmCursesMainForm::Render(int left, int top, int width, int height)
     bool isNewPage;
     int i = 0;
     for (cmCursesCacheEntryComposite& entry : this->Entries) {
-      const char* existingValue =
+      cmProp existingValue =
         this->CMakeInstance->GetState()->GetCacheEntryValue(entry.GetValue());
       bool advanced =
         this->CMakeInstance->GetState()->GetCacheEntryPropertyAsBool(
@@ -405,7 +405,7 @@ void cmCursesMainForm::UpdateStatusBar(cm::optional<std::string> message)
     // Get the help string of the current entry
     // and add it to the help string
     auto cmakeState = this->CMakeInstance->GetState();
-    const char* existingValue = cmakeState->GetCacheEntryValue(labelValue);
+    cmProp existingValue = cmakeState->GetCacheEntryValue(labelValue);
     if (existingValue) {
       auto help = cmakeState->GetCacheEntryProperty(labelValue, "HELPSTRING");
       if (help) {
@@ -616,10 +616,10 @@ void cmCursesMainForm::FillCacheManagerFromUI()
 {
   for (cmCursesCacheEntryComposite& entry : this->Entries) {
     const std::string& cacheKey = entry.Key;
-    const char* existingValue =
+    cmProp existingValue =
       this->CMakeInstance->GetState()->GetCacheEntryValue(cacheKey);
     if (existingValue) {
-      std::string oldValue = existingValue;
+      std::string oldValue = *existingValue;
       std::string newValue = entry.Entry->GetValue();
       std::string fixedOldValue;
       std::string fixedNewValue;
@@ -804,7 +804,7 @@ void cmCursesMainForm::HandleInput()
         const char* curField = lbl->GetValue();
         const char* helpString = nullptr;
 
-        const char* existingValue =
+        cmProp existingValue =
           this->CMakeInstance->GetState()->GetCacheEntryValue(curField);
         if (existingValue) {
           helpString = this->CMakeInstance->GetState()->GetCacheEntryProperty(
diff --git a/Source/QtDialog/QCMake.cxx b/Source/QtDialog/QCMake.cxx
index c3e9c84..eaf50f2 100644
--- a/Source/QtDialog/QCMake.cxx
+++ b/Source/QtDialog/QCMake.cxx
@@ -100,29 +100,28 @@ void QCMake::setBinaryDirectory(const QString& _dir)
 
     QCMakePropertyList props = this->properties();
     emit this->propertiesChanged(props);
-    const char* homeDir = state->GetCacheEntryValue("CMAKE_HOME_DIRECTORY");
+    cmProp homeDir = state->GetCacheEntryValue("CMAKE_HOME_DIRECTORY");
     if (homeDir) {
-      setSourceDirectory(QString::fromLocal8Bit(homeDir));
+      setSourceDirectory(QString::fromLocal8Bit(homeDir->c_str()));
     }
-    const char* gen = state->GetCacheEntryValue("CMAKE_GENERATOR");
+    cmProp gen = state->GetCacheEntryValue("CMAKE_GENERATOR");
     if (gen) {
       const std::string* extraGen =
         state->GetInitializedCacheValue("CMAKE_EXTRA_GENERATOR");
       std::string curGen =
         cmExternalMakefileProjectGenerator::CreateFullGeneratorName(
-          gen, extraGen ? *extraGen : "");
+          *gen, extraGen ? *extraGen : "");
       this->setGenerator(QString::fromLocal8Bit(curGen.c_str()));
     }
 
-    const char* platform =
-      state->GetCacheEntryValue("CMAKE_GENERATOR_PLATFORM");
+    cmProp platform = state->GetCacheEntryValue("CMAKE_GENERATOR_PLATFORM");
     if (platform) {
-      this->setPlatform(QString::fromLocal8Bit(platform));
+      this->setPlatform(QString::fromLocal8Bit(platform->c_str()));
     }
 
-    const char* toolset = state->GetCacheEntryValue("CMAKE_GENERATOR_TOOLSET");
+    cmProp toolset = state->GetCacheEntryValue("CMAKE_GENERATOR_TOOLSET");
     if (toolset) {
-      this->setToolset(QString::fromLocal8Bit(toolset));
+      this->setToolset(QString::fromLocal8Bit(toolset->c_str()));
     }
 
     checkOpenPossible();
@@ -303,17 +302,17 @@ QCMakePropertyList QCMake::properties() const
       continue;
     }
 
-    const char* cachedValue = state->GetCacheEntryValue(key);
+    cmProp cachedValue = state->GetCacheEntryValue(key);
 
     QCMakeProperty prop;
     prop.Key = QString::fromLocal8Bit(key.c_str());
     prop.Help =
       QString::fromLocal8Bit(state->GetCacheEntryProperty(key, "HELPSTRING"));
-    prop.Value = QString::fromLocal8Bit(cachedValue);
+    prop.Value = QString::fromLocal8Bit(cachedValue->c_str());
     prop.Advanced = state->GetCacheEntryPropertyAsBool(key, "ADVANCED");
     if (t == cmStateEnums::BOOL) {
       prop.Type = QCMakeProperty::BOOL;
-      prop.Value = cmIsOn(cachedValue);
+      prop.Value = cmIsOn(*cachedValue);
     } else if (t == cmStateEnums::PATH) {
       prop.Type = QCMakeProperty::PATH;
     } else if (t == cmStateEnums::FILEPATH) {
diff --git a/Source/cmFileAPICache.cxx b/Source/cmFileAPICache.cxx
index ef77795..639df52 100644
--- a/Source/cmFileAPICache.cxx
+++ b/Source/cmFileAPICache.cxx
@@ -67,7 +67,7 @@ Json::Value Cache::DumpEntry(std::string const& name)
   entry["name"] = name;
   entry["type"] =
     cmState::CacheEntryTypeToString(this->State->GetCacheEntryType(name));
-  entry["value"] = this->State->GetCacheEntryValue(name);
+  entry["value"] = this->State->GetSafeCacheEntryValue(name);
 
   Json::Value properties = this->DumpEntryProperties(name);
   if (!properties.empty()) {
diff --git a/Source/cmFindBase.cxx b/Source/cmFindBase.cxx
index fb09b33..4d627bd 100644
--- a/Source/cmFindBase.cxx
+++ b/Source/cmFindBase.cxx
@@ -296,7 +296,7 @@ bool cmFindBase::CheckForVariableInCache()
   if (const char* cacheValue =
         this->Makefile->GetDefinition(this->VariableName)) {
     cmState* state = this->Makefile->GetState();
-    const char* cacheEntry = state->GetCacheEntryValue(this->VariableName);
+    cmProp cacheEntry = state->GetCacheEntryValue(this->VariableName);
     bool found = !cmIsNOTFOUND(cacheValue);
     bool cached = cacheEntry != nullptr;
     if (found) {
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 76c559f..831b1fb 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -3042,7 +3042,9 @@ MessageType cmMakefile::ExpandVariablesInStringNew(
               }
               break;
             case CACHE:
-              value = state->GetCacheEntryValue(lookup);
+              if (cmProp value2 = state->GetCacheEntryValue(lookup)) {
+                value = value2->c_str();
+              }
               break;
           }
           // Get the string we're meant to append to.
diff --git a/Source/cmOptionCommand.cxx b/Source/cmOptionCommand.cxx
index 22e59ac..a9adf99 100644
--- a/Source/cmOptionCommand.cxx
+++ b/Source/cmOptionCommand.cxx
@@ -52,7 +52,7 @@ bool cmOptionCommand(std::vector<std::string> const& args,
   // See if a cache variable with this name already exists
   // If so just make sure the doc state is correct
   cmState* state = status.GetMakefile().GetState();
-  const char* existingValue = state->GetCacheEntryValue(args[0]);
+  cmProp existingValue = state->GetCacheEntryValue(args[0]);
   if (existingValue &&
       (state->GetCacheEntryType(args[0]) != cmStateEnums::UNINITIALIZED)) {
     state->SetCacheEntryProperty(args[0], "HELPSTRING", args[1]);
@@ -60,7 +60,7 @@ bool cmOptionCommand(std::vector<std::string> const& args,
   }
 
   // Nothing in the cache so add it
-  std::string initialValue = existingValue ? existingValue : "Off";
+  std::string initialValue = existingValue ? *existingValue : "Off";
   if (args.size() == 3) {
     initialValue = args[2];
   }
diff --git a/Source/cmServerProtocol.cxx b/Source/cmServerProtocol.cxx
index 1d4ea01..83a7f7b 100644
--- a/Source/cmServerProtocol.cxx
+++ b/Source/cmServerProtocol.cxx
@@ -182,7 +182,7 @@ static bool getOrTestHomeDirectory(cmState* state, std::string& value,
                                    std::string* errorMessage)
 {
   const std::string cachedValue =
-    std::string(state->GetCacheEntryValue("CMAKE_HOME_DIRECTORY"));
+    *state->GetCacheEntryValue("CMAKE_HOME_DIRECTORY");
   if (value.empty()) {
     value = cachedValue;
     return true;
@@ -205,9 +205,7 @@ static bool getOrTestValue(cmState* state, const std::string& key,
                            const std::string& keyDescription,
                            std::string* errorMessage)
 {
-  const char* entry = state->GetCacheEntryValue(key);
-  const std::string cachedValue =
-    entry == nullptr ? std::string() : std::string(entry);
+  const std::string cachedValue = state->GetSafeCacheEntryValue(key);
   if (value.empty()) {
     value = cachedValue;
   }
diff --git a/Source/cmSetCommand.cxx b/Source/cmSetCommand.cxx
index d8927e8..5c55427 100644
--- a/Source/cmSetCommand.cxx
+++ b/Source/cmSetCommand.cxx
@@ -135,7 +135,7 @@ bool cmSetCommand(std::vector<std::string> const& args,
 
   // see if this is already in the cache
   cmState* state = status.GetMakefile().GetState();
-  const char* existingValue = state->GetCacheEntryValue(variable);
+  cmProp existingValue = state->GetCacheEntryValue(variable);
   if (existingValue &&
       (state->GetCacheEntryType(variable) != cmStateEnums::UNINITIALIZED)) {
     // if the set is trying to CACHE the value but the value
diff --git a/Source/cmSetPropertyCommand.cxx b/Source/cmSetPropertyCommand.cxx
index ce534e1..e7330ef 100644
--- a/Source/cmSetPropertyCommand.cxx
+++ b/Source/cmSetPropertyCommand.cxx
@@ -438,7 +438,7 @@ bool HandleCacheMode(cmExecutionStatus& status,
   for (std::string const& name : names) {
     // Get the source file.
     cmake* cm = status.GetMakefile().GetCMakeInstance();
-    const char* existingValue = cm->GetState()->GetCacheEntryValue(name);
+    cmProp existingValue = cm->GetState()->GetCacheEntryValue(name);
     if (existingValue) {
       if (!HandleCacheEntry(name, status.GetMakefile(), propertyName,
                             propertyValue, appendAsString, appendMode,
diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index f424afa..bc08223 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -132,23 +132,22 @@ std::vector<std::string> cmState::GetCacheEntryKeys() const
   return definitions;
 }
 
-const char* cmState::GetCacheEntryValue(std::string const& key) const
+cmProp cmState::GetCacheEntryValue(std::string const& key) const
 {
   cmCacheManager::CacheEntry* e = this->CacheManager->GetCacheEntry(key);
   if (!e) {
     return nullptr;
   }
-  return e->Value.c_str();
+  return &e->Value;
 }
 
 std::string cmState::GetSafeCacheEntryValue(std::string const& key) const
 {
-  std::string retval;
-  auto val = this->GetCacheEntryValue(key);
+  cmProp val = this->GetCacheEntryValue(key);
   if (val) {
-    retval = val;
+    return *val;
   }
-  return retval;
+  return std::string();
 }
 
 const std::string* cmState::GetInitializedCacheValue(
diff --git a/Source/cmState.h b/Source/cmState.h
index 460c6bb..b577a72 100644
--- a/Source/cmState.h
+++ b/Source/cmState.h
@@ -30,6 +30,8 @@ class cmStateSnapshot;
 class cmMessenger;
 class cmExecutionStatus;
 
+using cmProp = const std::string*;
+
 class cmState
 {
   friend class cmStateSnapshot;
@@ -87,7 +89,7 @@ public:
   bool DeleteCache(const std::string& path);
 
   std::vector<std::string> GetCacheEntryKeys() const;
-  const char* GetCacheEntryValue(std::string const& key) 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;
   cmStateEnums::CacheEntryType GetCacheEntryType(std::string const& key) const;
diff --git a/Source/cmTryRunCommand.cxx b/Source/cmTryRunCommand.cxx
index 0e8e986..329b3b9 100644
--- a/Source/cmTryRunCommand.cxx
+++ b/Source/cmTryRunCommand.cxx
@@ -242,8 +242,7 @@ void cmTryRunCommand::DoNotRunExecutable(const std::string& runArgs,
                                        comment.c_str(), cmStateEnums::STRING);
 
     cmState* state = this->Makefile->GetState();
-    const char* existingValue =
-      state->GetCacheEntryValue(this->RunResultVariable);
+    cmProp existingValue = state->GetCacheEntryValue(this->RunResultVariable);
     if (existingValue) {
       state->SetCacheEntryProperty(this->RunResultVariable, "ADVANCED", "1");
     }
@@ -265,7 +264,7 @@ void cmTryRunCommand::DoNotRunExecutable(const std::string& runArgs,
         internalRunOutputName, "PLEASE_FILL_OUT-NOTFOUND", comment.c_str(),
         cmStateEnums::STRING);
       cmState* state = this->Makefile->GetState();
-      const char* existing = state->GetCacheEntryValue(internalRunOutputName);
+      cmProp existing = state->GetCacheEntryValue(internalRunOutputName);
       if (existing) {
         state->SetCacheEntryProperty(internalRunOutputName, "ADVANCED", "1");
       }
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 29ed61d..6082ed0 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -1058,11 +1058,11 @@ void cmake::SetDirectoriesFromFile(const std::string& arg)
   // If there is a CMakeCache.txt file, use its settings.
   if (!cachePath.empty()) {
     if (this->LoadCache(cachePath)) {
-      const char* existingValue =
+      cmProp existingValue =
         this->State->GetCacheEntryValue("CMAKE_HOME_DIRECTORY");
       if (existingValue) {
         this->SetHomeOutputDirectory(cachePath);
-        this->SetHomeDirectory(existingValue);
+        this->SetHomeDirectory(*existingValue);
         return;
       }
     }
@@ -1405,7 +1405,7 @@ int cmake::HandleDeleteCacheVariables(const std::string& var)
     i++;
     save.value = *i;
     warning << *i << "\n";
-    const char* existingValue = this->State->GetCacheEntryValue(save.key);
+    cmProp existingValue = this->State->GetCacheEntryValue(save.key);
     if (existingValue) {
       save.type = this->State->GetCacheEntryType(save.key);
       if (const char* help =
@@ -1455,9 +1455,9 @@ int cmake::Configure()
   if (this->DiagLevels.count("dev") == 1) {
     bool setDeprecatedVariables = false;
 
-    const char* cachedWarnDeprecated =
+    cmProp cachedWarnDeprecated =
       this->State->GetCacheEntryValue("CMAKE_WARN_DEPRECATED");
-    const char* cachedErrorDeprecated =
+    cmProp cachedErrorDeprecated =
       this->State->GetCacheEntryValue("CMAKE_ERROR_DEPRECATED");
 
     // don't overwrite deprecated warning setting from a previous invocation
@@ -1496,17 +1496,17 @@ int cmake::Configure()
   // Cache variables may have already been set by a previous invocation,
   // so we cannot rely on command line options alone. Always ensure our
   // messenger is in sync with the cache.
-  const char* value = this->State->GetCacheEntryValue("CMAKE_WARN_DEPRECATED");
-  this->Messenger->SetSuppressDeprecatedWarnings(value && cmIsOff(value));
+  cmProp value = this->State->GetCacheEntryValue("CMAKE_WARN_DEPRECATED");
+  this->Messenger->SetSuppressDeprecatedWarnings(value && cmIsOff(*value));
 
   value = this->State->GetCacheEntryValue("CMAKE_ERROR_DEPRECATED");
-  this->Messenger->SetDeprecatedWarningsAsErrors(cmIsOn(value));
+  this->Messenger->SetDeprecatedWarningsAsErrors(value && cmIsOn(*value));
 
   value = this->State->GetCacheEntryValue("CMAKE_SUPPRESS_DEVELOPER_WARNINGS");
-  this->Messenger->SetSuppressDevWarnings(cmIsOn(value));
+  this->Messenger->SetSuppressDevWarnings(value && cmIsOn(*value));
 
   value = this->State->GetCacheEntryValue("CMAKE_SUPPRESS_DEVELOPER_ERRORS");
-  this->Messenger->SetDevWarningsAsErrors(value && cmIsOff(value));
+  this->Messenger->SetDevWarningsAsErrors(value && cmIsOff(*value));
 
   int ret = this->ActualConfigure();
   const char* delCacheVars =
@@ -2701,59 +2701,58 @@ int cmake::Build(int jobs, const std::string& dir,
     std::cerr << "Error: could not load cache\n";
     return 1;
   }
-  const char* cachedGenerator =
-    this->State->GetCacheEntryValue("CMAKE_GENERATOR");
+  cmProp cachedGenerator = this->State->GetCacheEntryValue("CMAKE_GENERATOR");
   if (!cachedGenerator) {
     std::cerr << "Error: could not find CMAKE_GENERATOR in Cache\n";
     return 1;
   }
-  auto gen = this->CreateGlobalGenerator(cachedGenerator);
+  auto gen = this->CreateGlobalGenerator(*cachedGenerator);
   if (!gen) {
-    std::cerr << "Error: could create CMAKE_GENERATOR \"" << cachedGenerator
+    std::cerr << "Error: could create CMAKE_GENERATOR \"" << *cachedGenerator
               << "\"\n";
     return 1;
   }
   this->SetGlobalGenerator(std::move(gen));
-  const char* cachedGeneratorInstance =
+  cmProp cachedGeneratorInstance =
     this->State->GetCacheEntryValue("CMAKE_GENERATOR_INSTANCE");
   if (cachedGeneratorInstance) {
     cmMakefile mf(this->GetGlobalGenerator(), this->GetCurrentSnapshot());
-    if (!this->GlobalGenerator->SetGeneratorInstance(cachedGeneratorInstance,
+    if (!this->GlobalGenerator->SetGeneratorInstance(*cachedGeneratorInstance,
                                                      &mf)) {
       return 1;
     }
   }
-  const char* cachedGeneratorPlatform =
+  cmProp cachedGeneratorPlatform =
     this->State->GetCacheEntryValue("CMAKE_GENERATOR_PLATFORM");
   if (cachedGeneratorPlatform) {
     cmMakefile mf(this->GetGlobalGenerator(), this->GetCurrentSnapshot());
-    if (!this->GlobalGenerator->SetGeneratorPlatform(cachedGeneratorPlatform,
+    if (!this->GlobalGenerator->SetGeneratorPlatform(*cachedGeneratorPlatform,
                                                      &mf)) {
       return 1;
     }
   }
-  const char* cachedGeneratorToolset =
+  cmProp cachedGeneratorToolset =
     this->State->GetCacheEntryValue("CMAKE_GENERATOR_TOOLSET");
   if (cachedGeneratorToolset) {
     cmMakefile mf(this->GetGlobalGenerator(), this->GetCurrentSnapshot());
-    if (!this->GlobalGenerator->SetGeneratorToolset(cachedGeneratorToolset,
+    if (!this->GlobalGenerator->SetGeneratorToolset(*cachedGeneratorToolset,
                                                     true, &mf)) {
       return 1;
     }
   }
   std::string output;
   std::string projName;
-  const char* cachedProjectName =
+  cmProp cachedProjectName =
     this->State->GetCacheEntryValue("CMAKE_PROJECT_NAME");
   if (!cachedProjectName) {
     std::cerr << "Error: could not find CMAKE_PROJECT_NAME in Cache\n";
     return 1;
   }
-  projName = cachedProjectName;
+  projName = *cachedProjectName;
 
-  const char* cachedVerbose =
+  cmProp cachedVerbose =
     this->State->GetCacheEntryValue("CMAKE_VERBOSE_MAKEFILE");
-  if (cmIsOn(cachedVerbose)) {
+  if (cachedVerbose && cmIsOn(*cachedVerbose)) {
     verbose = true;
   }
 
@@ -2837,7 +2836,7 @@ bool cmake::Open(const std::string& dir, bool dryRun)
     std::cerr << "Error: could not load cache\n";
     return false;
   }
-  const char* genName = this->State->GetCacheEntryValue("CMAKE_GENERATOR");
+  cmProp genName = this->State->GetCacheEntryValue("CMAKE_GENERATOR");
   if (!genName) {
     std::cerr << "Error: could not find CMAKE_GENERATOR in Cache\n";
     return false;
@@ -2846,7 +2845,7 @@ bool cmake::Open(const std::string& dir, bool dryRun)
     this->State->GetInitializedCacheValue("CMAKE_EXTRA_GENERATOR");
   std::string fullName =
     cmExternalMakefileProjectGenerator::CreateFullGeneratorName(
-      genName, extraGenName ? *extraGenName : "");
+      *genName, extraGenName ? *extraGenName : "");
 
   std::unique_ptr<cmGlobalGenerator> gen =
     this->CreateGlobalGenerator(fullName);
@@ -2856,14 +2855,14 @@ bool cmake::Open(const std::string& dir, bool dryRun)
     return false;
   }
 
-  const char* cachedProjectName =
+  cmProp cachedProjectName =
     this->State->GetCacheEntryValue("CMAKE_PROJECT_NAME");
   if (!cachedProjectName) {
     std::cerr << "Error: could not find CMAKE_PROJECT_NAME in Cache\n";
     return false;
   }
 
-  return gen->Open(dir, cachedProjectName, dryRun);
+  return gen->Open(dir, *cachedProjectName, dryRun);
 }
 
 void cmake::WatchUnusedCli(const std::string& var)
diff --git a/Source/cmakemain.cxx b/Source/cmakemain.cxx
index 90d8ea6..0e99117 100644
--- a/Source/cmakemain.cxx
+++ b/Source/cmakemain.cxx
@@ -301,7 +301,7 @@ int do_cmake(int ac, char const* const* av)
                       << std::endl;
           }
           std::cout << k << ":" << cmState::CacheEntryTypeToString(t) << "="
-                    << cm.GetState()->GetCacheEntryValue(k) << std::endl;
+                    << cm.GetState()->GetSafeCacheEntryValue(k) << std::endl;
           if (list_help) {
             std::cout << std::endl;
           }