CMP0037: De-duplicate check and message generation

Source/cmAddCustomTargetCommand.cxx

@@ -8,7 +8,7 @@
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
-#include "cmPolicies.h"
+#include "cmStateTypes.h"
 #include "cmSystemTools.h"
 #include "cmTarget.h"
 #include "cmake.h"
@@ -160,35 +160,9 @@ bool cmAddCustomTargetCommand::InitialPass(
   if (nameOk) {
     nameOk = targetName.find(':') == std::string::npos;
   }
-  if (!nameOk) {
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
-    std::ostringstream e;
-    bool issueMessage = false;
-    switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0037)) {
-      case cmPolicies::WARN:
-        e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0037) << "\n";
-        issueMessage = true;
-      case cmPolicies::OLD:
-        break;
-      case cmPolicies::NEW:
-      case cmPolicies::REQUIRED_IF_USED:
-      case cmPolicies::REQUIRED_ALWAYS:
-        issueMessage = true;
-        messageType = cmake::FATAL_ERROR;
-    }
-    if (issueMessage) {
-      /* clang-format off */
-      e << "The target name \"" << targetName <<
-          "\" is reserved or not valid for certain "
-          "CMake features, such as generator expressions, and may result "
-          "in undefined behavior.";
-      /* clang-format on */
-      this->Makefile->IssueMessage(messageType, e.str());
-
-      if (messageType == cmake::FATAL_ERROR) {
-        return false;
-      }
-    }
+  if (!nameOk &&
+      !this->Makefile->CheckCMP0037(targetName, cmStateEnums::UTILITY)) {
+    return false;
   }
 
   // Store the last command line finished.

Source/cmAddExecutableCommand.cxx

@@ -7,10 +7,8 @@
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
-#include "cmPolicies.h"
 #include "cmStateTypes.h"
 #include "cmTarget.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -63,35 +61,9 @@ bool cmAddExecutableCommand::InitialPass(std::vector<std::string> const& args,
   if (nameOk && !importTarget && !isAlias) {
     nameOk = exename.find(':') == std::string::npos;
   }
-  if (!nameOk) {
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
-    std::ostringstream e;
-    bool issueMessage = false;
-    switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0037)) {
-      case cmPolicies::WARN:
-        e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0037) << "\n";
-        issueMessage = true;
-      case cmPolicies::OLD:
-        break;
-      case cmPolicies::NEW:
-      case cmPolicies::REQUIRED_IF_USED:
-      case cmPolicies::REQUIRED_ALWAYS:
-        issueMessage = true;
-        messageType = cmake::FATAL_ERROR;
-    }
-    if (issueMessage) {
-      /* clang-format off */
-      e << "The target name \"" << exename <<
-          "\" is reserved or not valid for certain "
-          "CMake features, such as generator expressions, and may result "
-          "in undefined behavior.";
-      /* clang-format on */
-      this->Makefile->IssueMessage(messageType, e.str());
-
-      if (messageType == cmake::FATAL_ERROR) {
-        return false;
-      }
-    }
+  if (!nameOk &&
+      !this->Makefile->CheckCMP0037(exename, cmStateEnums::EXECUTABLE)) {
+    return false;
   }
 
   // Special modifiers are not allowed with IMPORTED signature.

Source/cmAddLibraryCommand.cxx

@@ -7,7 +7,6 @@
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
-#include "cmPolicies.h"
 #include "cmState.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
@@ -175,35 +174,8 @@ bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args,
   if (nameOk && !importTarget && !isAlias) {
     nameOk = libName.find(':') == std::string::npos;
   }
-  if (!nameOk) {
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
-    std::ostringstream e;
-    bool issueMessage = false;
-    switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0037)) {
-      case cmPolicies::WARN:
-        if (type != cmStateEnums::INTERFACE_LIBRARY) {
-          e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0037) << "\n";
-          issueMessage = true;
-        }
-      case cmPolicies::OLD:
-        break;
-      case cmPolicies::NEW:
-      case cmPolicies::REQUIRED_IF_USED:
-      case cmPolicies::REQUIRED_ALWAYS:
-        issueMessage = true;
-        messageType = cmake::FATAL_ERROR;
-    }
-    if (issueMessage) {
-      e << "The target name \"" << libName
-        << "\" is reserved or not valid for certain "
-           "CMake features, such as generator expressions, and may result "
-           "in undefined behavior.";
-      this->Makefile->IssueMessage(messageType, e.str());
-
-      if (messageType == cmake::FATAL_ERROR) {
-        return false;
-      }
-    }
+  if (!nameOk && !this->Makefile->CheckCMP0037(libName, type)) {
+    return false;
   }
 
   if (isAlias) {

Source/cmMakefile.cxx

@@ -123,6 +123,42 @@ void cmMakefile::IssueMessage(cmake::MessageType t,
   this->GetCMakeInstance()->IssueMessage(t, text, this->GetBacktrace());
 }
 
+bool cmMakefile::CheckCMP0037(std::string const& targetName,
+                              cmStateEnums::TargetType targetType) const
+{
+  cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+  std::ostringstream e;
+  bool issueMessage = false;
+  switch (this->GetPolicyStatus(cmPolicies::CMP0037)) {
+    case cmPolicies::WARN:
+      if (targetType != cmStateEnums::INTERFACE_LIBRARY) {
+        e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0037) << "\n";
+        issueMessage = true;
+      }
+      CM_FALLTHROUGH;
+    case cmPolicies::OLD:
+      break;
+    case cmPolicies::NEW:
+    case cmPolicies::REQUIRED_IF_USED:
+    case cmPolicies::REQUIRED_ALWAYS:
+      issueMessage = true;
+      messageType = cmake::FATAL_ERROR;
+      break;
+  }
+  if (issueMessage) {
+    e << "The target name \"" << targetName
+      << "\" is reserved or not valid for certain "
+         "CMake features, such as generator expressions, and may result "
+         "in undefined behavior.";
+    this->IssueMessage(messageType, e.str());
+
+    if (messageType == cmake::FATAL_ERROR) {
+      return false;
+    }
+  }
+  return true;
+}
+
 cmStringRange cmMakefile::GetIncludeDirectoriesEntries() const
 {
   return this->StateSnapshot.GetDirectory().GetIncludeDirectoriesEntries();

Source/cmMakefile.h

@@ -741,6 +741,9 @@ public:
   /** Set whether or not to report a CMP0000 violation.  */
   void SetCheckCMP0000(bool b) { this->CheckCMP0000 = b; }
 
+  bool CheckCMP0037(std::string const& targetName,
+                    cmStateEnums::TargetType targetType) const;
+
   cmStringRange GetIncludeDirectoriesEntries() const;
   cmBacktraceRange GetIncludeDirectoriesBacktraces() const;
   cmStringRange GetCompileOptionsEntries() const;