cmGeneratorTarget: Factor LINK_DIRECTORIES impl into own source

4 files changed, 156 insertions, 125 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index d911484..dd667b4 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -286,6 +286,7 @@ add_library(
   cmGeneratorTarget.cxx
   cmGeneratorTarget.h
   cmGeneratorTarget_IncludeDirectories.cxx
+  cmGeneratorTarget_LinkDirectories.cxx
   cmGeneratorTarget_Sources.cxx
   cmGeneratorTarget_TargetPropertyEntry.cxx
   cmLinkItemGraphVisitor.cxx
diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index e0e118f..5898a63 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -3697,131 +3697,6 @@ std::vector<BT<std::string>> cmGeneratorTarget::GetStaticLibraryLinkOptions(
   return result;
 }
 
-namespace {
-void processLinkDirectories(cmGeneratorTarget const* tgt,
-                            EvaluatedTargetPropertyEntries& entries,
-                            std::vector<BT<std::string>>& directories,
-                            std::unordered_set<std::string>& uniqueDirectories,
-                            bool debugDirectories)
-{
-  for (EvaluatedTargetPropertyEntry& entry : entries.Entries) {
-    cmLinkImplItem const& item = entry.LinkImplItem;
-    std::string const& targetName = item.AsStr();
-
-    std::string usedDirectories;
-    for (std::string& entryDirectory : entry.Values) {
-      if (!cmSystemTools::FileIsFullPath(entryDirectory)) {
-        std::ostringstream e;
-        bool noMessage = false;
-        MessageType messageType = MessageType::FATAL_ERROR;
-        if (!targetName.empty()) {
-          /* clang-format off */
-          e << "Target \"" << targetName << "\" contains relative "
-            "path in its INTERFACE_LINK_DIRECTORIES:\n"
-            "  \"" << entryDirectory << "\"";
-          /* clang-format on */
-        } else {
-          switch (tgt->GetPolicyStatusCMP0081()) {
-            case cmPolicies::WARN: {
-              e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0081) << "\n";
-              messageType = MessageType::AUTHOR_WARNING;
-            } break;
-            case cmPolicies::OLD:
-              noMessage = true;
-              break;
-            case cmPolicies::REQUIRED_IF_USED:
-            case cmPolicies::REQUIRED_ALWAYS:
-            case cmPolicies::NEW:
-              // Issue the fatal message.
-              break;
-          }
-          e << "Found relative path while evaluating link directories of "
-               "\""
-            << tgt->GetName() << "\":\n  \"" << entryDirectory << "\"\n";
-        }
-        if (!noMessage) {
-          tgt->GetLocalGenerator()->IssueMessage(messageType, e.str());
-          if (messageType == MessageType::FATAL_ERROR) {
-            return;
-          }
-        }
-      }
-
-      // Sanitize the path the same way the link_directories command does
-      // in case projects set the LINK_DIRECTORIES property directly.
-      cmSystemTools::ConvertToUnixSlashes(entryDirectory);
-      if (uniqueDirectories.insert(entryDirectory).second) {
-        directories.emplace_back(entryDirectory, entry.Backtrace);
-        if (debugDirectories) {
-          usedDirectories += " * " + entryDirectory + "\n";
-        }
-      }
-    }
-    if (!usedDirectories.empty()) {
-      tgt->GetLocalGenerator()->GetCMakeInstance()->IssueMessage(
-        MessageType::LOG,
-        std::string("Used link directories for target ") + tgt->GetName() +
-          ":\n" + usedDirectories,
-        entry.Backtrace);
-    }
-  }
-}
-}
-
-void cmGeneratorTarget::GetLinkDirectories(std::vector<std::string>& result,
-                                           const std::string& config,
-                                           const std::string& language) const
-{
-  std::vector<BT<std::string>> tmp =
-    this->GetLinkDirectories(config, language);
-  result.reserve(tmp.size());
-  for (BT<std::string>& v : tmp) {
-    result.emplace_back(std::move(v.Value));
-  }
-}
-
-std::vector<BT<std::string>> cmGeneratorTarget::GetLinkDirectories(
-  std::string const& config, std::string const& language) const
-{
-  ConfigAndLanguage cacheKey(
-    config, cmStrCat(language, this->IsDeviceLink() ? "-device" : ""));
-  {
-    auto it = this->LinkDirectoriesCache.find(cacheKey);
-    if (it != this->LinkDirectoriesCache.end()) {
-      return it->second;
-    }
-  }
-  std::vector<BT<std::string>> result;
-  std::unordered_set<std::string> uniqueDirectories;
-
-  cmGeneratorExpressionDAGChecker dagChecker(this, "LINK_DIRECTORIES", nullptr,
-                                             nullptr, this->LocalGenerator);
-
-  cmList debugProperties{ this->Makefile->GetDefinition(
-    "CMAKE_DEBUG_TARGET_PROPERTIES") };
-  bool debugDirectories = !this->DebugLinkDirectoriesDone &&
-    cm::contains(debugProperties, "LINK_DIRECTORIES");
-
-  if (this->GlobalGenerator->GetConfigureDoneCMP0026()) {
-    this->DebugLinkDirectoriesDone = true;
-  }
-
-  EvaluatedTargetPropertyEntries entries = EvaluateTargetPropertyEntries(
-    this, config, language, &dagChecker, this->LinkDirectoriesEntries);
-
-  AddInterfaceEntries(this, config, "INTERFACE_LINK_DIRECTORIES", language,
-                      &dagChecker, entries, IncludeRuntimeInterface::Yes,
-                      this->GetPolicyStatusCMP0099() == cmPolicies::NEW
-                        ? UseTo::Link
-                        : UseTo::Compile);
-
-  processLinkDirectories(this, entries, result, uniqueDirectories,
-                         debugDirectories);
-
-  this->LinkDirectoriesCache.emplace(cacheKey, result);
-  return result;
-}
-
 void cmGeneratorTarget::GetLinkDepends(std::vector<std::string>& result,
                                        const std::string& config,
                                        const std::string& language) const
diff --git a/Source/cmGeneratorTarget_LinkDirectories.cxx b/Source/cmGeneratorTarget_LinkDirectories.cxx
new file mode 100644
index 0000000..0955dfb
--- /dev/null
+++ b/Source/cmGeneratorTarget_LinkDirectories.cxx
@@ -0,0 +1,154 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+/* clang-format off */
+#include "cmGeneratorTarget.h"
+/* clang-format on */
+
+#include <map>
+#include <sstream>
+#include <string>
+#include <unordered_set>
+#include <utility>
+#include <vector>
+
+#include <cmext/algorithm>
+
+#include "cmEvaluatedTargetProperty.h"
+#include "cmGeneratorExpressionDAGChecker.h"
+#include "cmGlobalGenerator.h"
+#include "cmLinkItem.h"
+#include "cmList.h"
+#include "cmListFileCache.h"
+#include "cmLocalGenerator.h"
+#include "cmMakefile.h"
+#include "cmMessageType.h"
+#include "cmPolicies.h"
+#include "cmStringAlgorithms.h"
+#include "cmSystemTools.h"
+#include "cmValue.h"
+#include "cmake.h"
+
+namespace {
+void processLinkDirectories(cmGeneratorTarget const* tgt,
+                            EvaluatedTargetPropertyEntries& entries,
+                            std::vector<BT<std::string>>& directories,
+                            std::unordered_set<std::string>& uniqueDirectories,
+                            bool debugDirectories)
+{
+  for (EvaluatedTargetPropertyEntry& entry : entries.Entries) {
+    cmLinkImplItem const& item = entry.LinkImplItem;
+    std::string const& targetName = item.AsStr();
+
+    std::string usedDirectories;
+    for (std::string& entryDirectory : entry.Values) {
+      if (!cmSystemTools::FileIsFullPath(entryDirectory)) {
+        std::ostringstream e;
+        bool noMessage = false;
+        MessageType messageType = MessageType::FATAL_ERROR;
+        if (!targetName.empty()) {
+          /* clang-format off */
+          e << "Target \"" << targetName << "\" contains relative "
+            "path in its INTERFACE_LINK_DIRECTORIES:\n"
+            "  \"" << entryDirectory << "\"";
+          /* clang-format on */
+        } else {
+          switch (tgt->GetPolicyStatusCMP0081()) {
+            case cmPolicies::WARN: {
+              e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0081) << "\n";
+              messageType = MessageType::AUTHOR_WARNING;
+            } break;
+            case cmPolicies::OLD:
+              noMessage = true;
+              break;
+            case cmPolicies::REQUIRED_IF_USED:
+            case cmPolicies::REQUIRED_ALWAYS:
+            case cmPolicies::NEW:
+              // Issue the fatal message.
+              break;
+          }
+          e << "Found relative path while evaluating link directories of "
+               "\""
+            << tgt->GetName() << "\":\n  \"" << entryDirectory << "\"\n";
+        }
+        if (!noMessage) {
+          tgt->GetLocalGenerator()->IssueMessage(messageType, e.str());
+          if (messageType == MessageType::FATAL_ERROR) {
+            return;
+          }
+        }
+      }
+
+      // Sanitize the path the same way the link_directories command does
+      // in case projects set the LINK_DIRECTORIES property directly.
+      cmSystemTools::ConvertToUnixSlashes(entryDirectory);
+      if (uniqueDirectories.insert(entryDirectory).second) {
+        directories.emplace_back(entryDirectory, entry.Backtrace);
+        if (debugDirectories) {
+          usedDirectories += " * " + entryDirectory + "\n";
+        }
+      }
+    }
+    if (!usedDirectories.empty()) {
+      tgt->GetLocalGenerator()->GetCMakeInstance()->IssueMessage(
+        MessageType::LOG,
+        std::string("Used link directories for target ") + tgt->GetName() +
+          ":\n" + usedDirectories,
+        entry.Backtrace);
+    }
+  }
+}
+}
+
+void cmGeneratorTarget::GetLinkDirectories(std::vector<std::string>& result,
+                                           const std::string& config,
+                                           const std::string& language) const
+{
+  std::vector<BT<std::string>> tmp =
+    this->GetLinkDirectories(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetLinkDirectories(
+  std::string const& config, std::string const& language) const
+{
+  ConfigAndLanguage cacheKey(
+    config, cmStrCat(language, this->IsDeviceLink() ? "-device" : ""));
+  {
+    auto it = this->LinkDirectoriesCache.find(cacheKey);
+    if (it != this->LinkDirectoriesCache.end()) {
+      return it->second;
+    }
+  }
+  std::vector<BT<std::string>> result;
+  std::unordered_set<std::string> uniqueDirectories;
+
+  cmGeneratorExpressionDAGChecker dagChecker(this, "LINK_DIRECTORIES", nullptr,
+                                             nullptr, this->LocalGenerator);
+
+  cmList debugProperties{ this->Makefile->GetDefinition(
+    "CMAKE_DEBUG_TARGET_PROPERTIES") };
+  bool debugDirectories = !this->DebugLinkDirectoriesDone &&
+    cm::contains(debugProperties, "LINK_DIRECTORIES");
+
+  if (this->GlobalGenerator->GetConfigureDoneCMP0026()) {
+    this->DebugLinkDirectoriesDone = true;
+  }
+
+  EvaluatedTargetPropertyEntries entries = EvaluateTargetPropertyEntries(
+    this, config, language, &dagChecker, this->LinkDirectoriesEntries);
+
+  AddInterfaceEntries(this, config, "INTERFACE_LINK_DIRECTORIES", language,
+                      &dagChecker, entries, IncludeRuntimeInterface::Yes,
+                      this->GetPolicyStatusCMP0099() == cmPolicies::NEW
+                        ? UseTo::Link
+                        : UseTo::Compile);
+
+  processLinkDirectories(this, entries, result, uniqueDirectories,
+                         debugDirectories);
+
+  this->LinkDirectoriesCache.emplace(cacheKey, result);
+  return result;
+}
diff --git a/bootstrap b/bootstrap
index c029bc7..7fe23ae 100755
--- a/bootstrap
+++ b/bootstrap
@@ -382,6 +382,7 @@ CMAKE_CXX_SOURCES="\
   cmGeneratorExpressionParser \
   cmGeneratorTarget \
   cmGeneratorTarget_IncludeDirectories \
+  cmGeneratorTarget_LinkDirectories \
   cmGeneratorTarget_Sources \
   cmGeneratorTarget_TargetPropertyEntry \
   cmGetCMakePropertyCommand \