import com.sun.tools.apt.mirror.apt.MessagerImpl; //导入依赖的package包/类
public AnnotationProcessorEnvironmentImpl(Collection<TypeDeclaration> spectypedecls,
                                          Collection<TypeDeclaration> typedecls,
                                          Map<String, String> origOptions,
                                          Context context) {
    // Safer to copy collections before applying unmodifiable
    // wrapper.
    this.spectypedecls = Collections.unmodifiableCollection(spectypedecls);
    this.typedecls = Collections.unmodifiableCollection(typedecls);
    this.origOptions = Collections.unmodifiableMap(origOptions);

    declMaker = DeclarationMaker.instance(context);
    declUtils = DeclarationsImpl.instance(context);
    typeUtils = TypesImpl.instance(context);
    messager = MessagerImpl.instance(context);
    filer = FilerImpl.instance(context);
    bark = Bark.instance(context);
    roundCompleteListeners = new LinkedHashSet<RoundCompleteListener>();
}