cmTargetPropertyComputer: Extract into new files

1 files changed, 243 insertions, 0 deletions

diff --git a/Source/cmTargetPropertyComputer.cxx b/Source/cmTargetPropertyComputer.cxx
new file mode 100644
index 0000000..f15cb43
--- /dev/null
+++ b/Source/cmTargetPropertyComputer.cxx
@@ -0,0 +1,243 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+
+#include "cmTargetPropertyComputer.h"
+
+#include "cmGeneratorTarget.h"
+#include "cmGlobalGenerator.h"
+#include "cmMakefile.h"
+#include "cmMessenger.h"
+#include "cmSourceFile.h"
+#include "cmSourceFileLocation.h"
+#include "cmSystemTools.h"
+#include "cmTarget.h"
+
+#if defined(CMake_HAVE_CXX_UNORDERED_SET)
+#include <unordered_set>
+#define UNORDERED_SET std::unordered_set
+#elif defined(CMAKE_BUILD_WITH_CMAKE)
+#include <cmsys/hash_set.hxx>
+#define UNORDERED_SET cmsys::hash_set
+#else
+#define UNORDERED_SET std::set
+#endif
+
+bool cmTargetPropertyComputer::HandleLocationPropertyPolicy(
+  std::string const& tgtName, cmMessenger* messenger,
+  cmListFileBacktrace const& context)
+{
+  std::ostringstream e;
+  const char* modal = CM_NULLPTR;
+  cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+  switch (context.GetBottom().GetPolicy(cmPolicies::CMP0026)) {
+    case cmPolicies::WARN:
+      e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0026) << "\n";
+      modal = "should";
+    case cmPolicies::OLD:
+      break;
+    case cmPolicies::REQUIRED_ALWAYS:
+    case cmPolicies::REQUIRED_IF_USED:
+    case cmPolicies::NEW:
+      modal = "may";
+      messageType = cmake::FATAL_ERROR;
+  }
+
+  if (modal) {
+    e << "The LOCATION property " << modal << " not be read from target \""
+      << tgtName
+      << "\".  Use the target name directly with "
+         "add_custom_command, or use the generator expression $<TARGET_FILE>, "
+         "as appropriate.\n";
+    messenger->IssueMessage(messageType, e.str(), context);
+  }
+
+  return messageType != cmake::FATAL_ERROR;
+}
+
+const char* cmTargetPropertyComputer::ComputeLocationForBuild(
+  cmTarget const* tgt)
+{
+  static std::string loc;
+  if (tgt->IsImported()) {
+    loc = tgt->ImportedGetFullPath("", false);
+    return loc.c_str();
+  }
+
+  cmGlobalGenerator* gg = tgt->GetMakefile()->GetGlobalGenerator();
+  if (!gg->GetConfigureDoneCMP0026()) {
+    gg->CreateGenerationObjects();
+  }
+  cmGeneratorTarget* gt = gg->FindGeneratorTarget(tgt->GetName());
+  loc = gt->GetLocationForBuild();
+  return loc.c_str();
+}
+
+const char* cmTargetPropertyComputer::ComputeLocation(
+  cmTarget const* tgt, std::string const& config)
+{
+  static std::string loc;
+  if (tgt->IsImported()) {
+    loc = tgt->ImportedGetFullPath(config, false);
+    return loc.c_str();
+  }
+
+  cmGlobalGenerator* gg = tgt->GetMakefile()->GetGlobalGenerator();
+  if (!gg->GetConfigureDoneCMP0026()) {
+    gg->CreateGenerationObjects();
+  }
+  cmGeneratorTarget* gt = gg->FindGeneratorTarget(tgt->GetName());
+  loc = gt->GetFullPath(config, false);
+  return loc.c_str();
+}
+
+const char* cmTargetPropertyComputer::GetProperty(
+  cmTarget const* tgt, const std::string& prop, cmMessenger* messenger,
+  cmListFileBacktrace const& context)
+{
+  if (const char* loc = GetLocation(tgt, prop, messenger, context)) {
+    return loc;
+  }
+  if (cmSystemTools::GetFatalErrorOccured()) {
+    return CM_NULLPTR;
+  }
+  if (prop == "SOURCES") {
+    return GetSources(tgt, messenger, context);
+  }
+  return CM_NULLPTR;
+}
+
+const char* cmTargetPropertyComputer::GetLocation(
+  cmTarget const* tgt, const std::string& prop, cmMessenger* messenger,
+  cmListFileBacktrace const& context)
+{
+  // Watch for special "computed" properties that are dependent on
+  // other properties or variables.  Always recompute them.
+  if (tgt->GetType() == cmState::EXECUTABLE ||
+      tgt->GetType() == cmState::STATIC_LIBRARY ||
+      tgt->GetType() == cmState::SHARED_LIBRARY ||
+      tgt->GetType() == cmState::MODULE_LIBRARY ||
+      tgt->GetType() == cmState::UNKNOWN_LIBRARY) {
+    static const std::string propLOCATION = "LOCATION";
+    if (prop == propLOCATION) {
+      if (!tgt->IsImported() &&
+          !HandleLocationPropertyPolicy(tgt->GetName(), messenger, context)) {
+        return CM_NULLPTR;
+      }
+      return ComputeLocationForBuild(tgt);
+    }
+
+    // Support "LOCATION_<CONFIG>".
+    else if (cmHasLiteralPrefix(prop, "LOCATION_")) {
+      if (!tgt->IsImported() &&
+          !HandleLocationPropertyPolicy(tgt->GetName(), messenger, context)) {
+        return CM_NULLPTR;
+      }
+      const char* configName = prop.c_str() + 9;
+      return ComputeLocation(tgt, configName);
+    }
+
+    // Support "<CONFIG>_LOCATION".
+    else if (cmHasLiteralSuffix(prop, "_LOCATION") &&
+             !cmHasLiteralPrefix(prop, "XCODE_ATTRIBUTE_")) {
+      std::string configName(prop.c_str(), prop.size() - 9);
+      if (configName != "IMPORTED") {
+        if (!tgt->IsImported() &&
+            !HandleLocationPropertyPolicy(tgt->GetName(), messenger,
+                                          context)) {
+          return CM_NULLPTR;
+        }
+        return ComputeLocation(tgt, configName);
+      }
+    }
+  }
+  return CM_NULLPTR;
+}
+
+const char* cmTargetPropertyComputer::GetSources(
+  cmTarget const* tgt,cmMessenger* messenger,
+  cmListFileBacktrace const& context)
+{
+  cmStringRange entries = tgt->GetSourceEntries();
+  if (entries.empty()) {
+    return CM_NULLPTR;
+  }
+
+  std::ostringstream ss;
+  const char* sep = "";
+  for (std::vector<std::string>::const_iterator i = entries.begin();
+       i != entries.end(); ++i) {
+    std::string const& entry = *i;
+
+    std::vector<std::string> files;
+    cmSystemTools::ExpandListArgument(entry, files);
+    for (std::vector<std::string>::const_iterator li = files.begin();
+         li != files.end(); ++li) {
+      if (cmHasLiteralPrefix(*li, "$<TARGET_OBJECTS:") &&
+          (*li)[li->size() - 1] == '>') {
+        std::string objLibName = li->substr(17, li->size() - 18);
+
+        if (cmGeneratorExpression::Find(objLibName) != std::string::npos) {
+          ss << sep;
+          sep = ";";
+          ss << *li;
+          continue;
+        }
+
+        bool addContent = false;
+        bool noMessage = true;
+        std::ostringstream e;
+        cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+        switch (context.GetBottom().GetPolicy(cmPolicies::CMP0051)) {
+          case cmPolicies::WARN:
+            e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0051) << "\n";
+            noMessage = false;
+          case cmPolicies::OLD:
+            break;
+          case cmPolicies::REQUIRED_ALWAYS:
+          case cmPolicies::REQUIRED_IF_USED:
+          case cmPolicies::NEW:
+            addContent = true;
+        }
+        if (!noMessage) {
+          e << "Target \"" << tgt->GetName()
+            << "\" contains "
+               "$<TARGET_OBJECTS> generator expression in its sources "
+               "list.  "
+               "This content was not previously part of the SOURCES "
+               "property "
+               "when that property was read at configure time.  Code "
+               "reading "
+               "that property needs to be adapted to ignore the generator "
+               "expression using the string(GENEX_STRIP) command.";
+          messenger->IssueMessage(messageType, e.str(), context);
+        }
+        if (addContent) {
+          ss << sep;
+          sep = ";";
+          ss << *li;
+        }
+      } else if (cmGeneratorExpression::Find(*li) == std::string::npos) {
+        ss << sep;
+        sep = ";";
+        ss << *li;
+      } else {
+        cmSourceFile* sf = tgt->GetMakefile()->GetOrCreateSource(*li);
+        // Construct what is known about this source file location.
+        cmSourceFileLocation const& location = sf->GetLocation();
+        std::string sname = location.GetDirectory();
+        if (!sname.empty()) {
+          sname += "/";
+        }
+        sname += location.GetName();
+
+        ss << sep;
+        sep = ";";
+        // Append this list entry.
+        ss << sname;
+      }
+    }
+  }
+  static std::string srcs;
+  srcs = ss.str();
+  return srcs.c_str();
+}