Map<String, Object> sourceMap = new HashMap<>();
        if (gidNumber != null) {
            addFieldToSource(sourceMap, "gidNumber", gidNumber);
        }
        if (name != null) {
            addFieldToSource(sourceMap, "name", name);
        }
        return sourceMap;
    }

    protected void addFieldToSource(Map<String, Object> sourceMap, String field, Object value) {

    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = new HashMap<>();
        if (name != null) {
            sourceMap.put("name", name);
        }
        if (attributes != null) {
            sourceMap.putAll(attributes);
        }
        return sourceMap;
    }

        personGroovyFile.text = personGroovyFile.text.replace("String name", "String name\\nString anotherName")
    }

    @Override
    void writeAdditionalSources(TestFile sourceDir) {
        sourceDir.file("java/Extra.groovy") << """
interface Extra {
    String whatever()
}
"""
    }

    List<JvmSourceFile> expectedOutputs = [
            sources[0].classFile,

    @OutputDirectory File headerDir
    @OutputDirectory File sourceDir

    @TaskAction
    void processIdlFiles() {
        idlFiles.each { File idlFile ->
            def baseName = idlFile.name - '.idl'
            File headerFile = new File(headerDir, "${baseName}.h")
            File sourceFile = new File(sourceDir, "${baseName}.c")
            processIdlFile(idlFile, headerFile, sourceFile)
        }

        buildFile << """
class GenerateSources extends DefaultTask {
    @InputDirectory File inputDir
    @OutputDirectory File sourceDir
    @OutputDirectory @Optional File headerDir

    @TaskAction
    void processInputFiles() {
        project.copy {
            from inputDir
            into sourceDir.parentFile
            filter { String line ->
                line.replaceAll('REMOVE_ME', '')
            }
        }
    }

                             llvm::raw_ostream& os) {
      auto sourceMgr = std::make_shared<llvm::SourceMgr>();
      sourceMgr->AddNewSourceBuffer(std::move(ownedBuffer), llvm::SMLoc());
      mlir::MLIRContext context;
      mlir::SourceMgrDiagnosticHandler diagnostic_handler(*sourceMgr, &context);
      return (*requested_translation)(sourceMgr, os, &context);
    };

    if (splitInputFile) {

PYBIND11_MODULE(filecheck_wrapper, m) {
  m.def("check", [](std::string input, std::string check) {
    llvm::FileCheckRequest fcr;
    llvm::FileCheck fc(fcr);
    llvm::SourceMgr SM = llvm::SourceMgr();
    SM.AddNewSourceBuffer(llvm::MemoryBuffer::getMemBuffer(input),
                          llvm::SMLoc());
    SM.AddNewSourceBuffer(llvm::MemoryBuffer::getMemBuffer(check),
                          llvm::SMLoc());
    fc.readCheckFile(SM, llvm::StringRef(check));

    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = new HashMap<>();
        if (name != null) {
            sourceMap.put("name", name);
        }
        if (attributes != null) {
            sourceMap.putAll(attributes);
        }
        return sourceMap;
    }

     */
    public Optional<String> relativize(File sourceFile) {
        return sourceRoots.stream()
            .filter(sourceDir -> sourceFile.getAbsolutePath().startsWith(sourceDir.getAbsolutePath()))
            .map(sourceDir -> RelativePathUtil.relativePath(sourceDir, sourceFile))
            .filter(relativePath -> !relativePath.startsWith(".."))
            .findFirst();
    }

        String targetFileName = template.substring(template.lastIndexOf("/") + 1).replace(".template", "");
        return fromCppTemplate(template, targetFileName, settings, sourceSetName, sourceDir);
    }

    TemplateOperation fromCppTemplate(String template, String targetFileName, InitSettings settings, String sourceSetName, String sourceDir) {