this.incrementalCompileFilesFactory = incrementalCompileFilesFactory;
        this.buildOperationExecutor = buildOperationExecutor;
    }

    public IncrementalCompilation processSourceFiles(final Collection<File> sourceFiles) {
        return buildOperationExecutor.call(new CallableBuildOperation<IncrementalCompilation>() {
            @Override

            incrementalCompilation = incrementalCompileProcessor.processSourceFiles(sourceFiles.getFiles());
            DefaultHeaderDependenciesCollector headerDependenciesCollector = new DefaultHeaderDependenciesCollector(directoryFileTreeFactory);