Function GetScanBuildStatement

Source/cmNinjaTargetGenerator.cxx:1309–1391

namespace {
cmNinjaBuild GetScanBuildStatement(std::string const& ruleName,
                                   std::string const& ppFileName,
                                   bool compilePP, bool compilePPWithDefines,
                                   bool compilationPreprocesses,
                                   cmNinjaBuild& objBuild, cmNinjaVars& vars,
                                   std::string const& objectFileName,
                                   cmNinjaTargetGenerator* tg)
{
  cmNinjaBuild scanBuild(ruleName);

  if (compilePP) {
    // Move compilation dependencies to the scan/preprocessing build statement.
    std::swap(scanBuild.ExplicitDeps, objBuild.ExplicitDeps);
    std::swap(scanBuild.ImplicitDeps, objBuild.ImplicitDeps);
    std::swap(scanBuild.OrderOnlyDeps, objBuild.OrderOnlyDeps);
    std::swap(scanBuild.Variables["IN_ABS"], vars["IN_ABS"]);

    // The actual compilation will now use the preprocessed source.
    objBuild.ExplicitDeps.push_back(ppFileName);
  } else {
    // Copy compilation dependencies to the scan/preprocessing build statement.
    scanBuild.ExplicitDeps = objBuild.ExplicitDeps;
    scanBuild.ImplicitDeps = objBuild.ImplicitDeps;
    scanBuild.OrderOnlyDeps = objBuild.OrderOnlyDeps;
    scanBuild.Variables["IN_ABS"] = vars["IN_ABS"];
  }

  // Scanning and compilation generally use the same flags.
  scanBuild.Variables["FLAGS"] = vars["FLAGS"];

  if (compilePP && !compilePPWithDefines) {
    // Move preprocessor definitions to the scan/preprocessor build statement.
    std::swap(scanBuild.Variables["DEFINES"], vars["DEFINES"]);
  } else {
    // Copy preprocessor definitions to the scan/preprocessor build statement.
    scanBuild.Variables["DEFINES"] = vars["DEFINES"];
  }

  // Copy include directories to the preprocessor build statement.  The
  // Fortran compilation build statement still needs them for the INCLUDE
  // directive.
  scanBuild.Variables["INCLUDES"] = vars["INCLUDES"];

  // Tell dependency scanner the object file that will result from
  // compiling the source.
  scanBuild.Variables["OBJ_FILE"] =
    tg->ConvertToOutputFormatForShell(objectFileName);

  // Tell dependency scanner where to store dyndep intermediate results.
  std::string ddiFileName = cmStrCat(objectFileName, ".ddi");
  scanBuild.Variables["DYNDEP_INTERMEDIATE_FILE"] =
    tg->ConvertToOutputFormatForShell(ddiFileName);
  scanBuild.RspFile = cmStrCat(ddiFileName, ".rsp");

  // Outputs of the scan/preprocessor build statement.
  if (compilePP) {
    scanBuild.Outputs.push_back(ppFileName);
    scanBuild.ImplicitOuts.push_back(ddiFileName);