Method WriteObjectRuleFiles

Source/cmMakefileTargetGenerator.cxx:632–1319

}

void cmMakefileTargetGenerator::WriteObjectRuleFiles(
  cmSourceFile const& source)
{
  // Identify the language of the source file.
  std::string const& lang = source.GetLanguage();
  if (lang.empty()) {
    // don't know anything about this file so skip it
    return;
  }

  // Use compiler to generate dependencies, if supported.
  bool const compilerGenerateDeps =
    this->GlobalGenerator->SupportsCompilerDependencies() &&
    this->Makefile
      ->GetDefinition(cmStrCat("CMAKE_", lang, "_DEPENDS_USE_COMPILER"))
      .IsOn();
  auto const scanner = compilerGenerateDeps ? cmDependencyScannerKind::Compiler
                                            : cmDependencyScannerKind::CMake;

  // Get the full path name of the object file.
  std::string const& objectName =
    this->GeneratorTarget->GetObjectName(&source);
  std::string const obj =
    cmStrCat(this->TargetBuildDirectory, '/', objectName);

  // Avoid generating duplicate rules.
  if (this->ObjectFiles.find(obj) == this->ObjectFiles.end()) {
    this->ObjectFiles.insert(obj);
  } else {
    std::ostringstream err;
    err << "Warning: Source file \"" << source.GetFullPath()
        << "\" is listed multiple times for target \""
        << this->GeneratorTarget->GetName() << "\".";
    cmSystemTools::Message(err.str(), "Warning");
    return;
  }

  // Create the directory containing the object file.  This may be a
  // subdirectory under the target's directory.
  {
    std::string const dir = cmSystemTools::GetFilenamePath(obj);
    cmSystemTools::MakeDirectory(this->LocalGenerator->ConvertToFullPath(dir));
  }

  // Save this in the target's list of object files.
  this->Objects.push_back(obj);
  this->CleanFiles.insert(obj);

  std::vector<std::string> depends;

  // The object file should be checked for dependency integrity.
  std::string objFullPath =
    cmStrCat(this->LocalGenerator->GetCurrentBinaryDirectory(), '/', obj);
  std::string const srcFullPath = source.GetFullPath();
  this->LocalGenerator->AddImplicitDepends(this->GeneratorTarget, lang,
                                           objFullPath, srcFullPath, scanner);

  this->LocalGenerator->AppendRuleDepend(depends,