public PBXBuildFile(PBXReference fileRef) {
        this.fileRef = Preconditions.checkNotNull(fileRef);
        this.settings = Optional.absent();
    }

    public PBXReference getFileRef() {
        return fileRef;
    }

    public Optional<NSDictionary> getSettings() {
        return settings;
    }

    public void setSettings(Optional<NSDictionary> v) {
        settings = v;
    }