javax.lang.model.element.NestingKind#TOP_LEVEL源码实例Demo

public static TargetDescription create(CompilationInfo info, TypeElement type, TreePath path, boolean allowForDuplicates, boolean iface) {
    boolean canStatic = true;
    if (iface) {
        // interface cannot have static methods
        canStatic = false;
    } else {
        if (type.getNestingKind() == NestingKind.ANONYMOUS || 
            type.getNestingKind() == NestingKind.LOCAL ||
            (type.getNestingKind() != NestingKind.TOP_LEVEL && !type.getModifiers().contains(Modifier.STATIC))) {
            canStatic = false;
        }
    }
    return new TargetDescription(Utilities.target2String(type), 
            ElementHandle.create(type), 
            TreePathHandle.create(path, info),
            allowForDuplicates, 
            type.getSimpleName().length() == 0, iface, canStatic);
}
 

/**
 * Gets the class access flags (see JVMS8 4.1) for the given type element as they should appear in
 * the ClassNode of a class file. Inner-class specific flags are not allowed in that node,
 * presumably for compatibility reasons.
 */
public int getAccessFlagsForClassNode(TypeElement e) {
  // Static never makes it into the file for classes
  int accessFlags = getAccessFlags(e) & ~Opcodes.ACC_STATIC;
  if (e.getNestingKind() != NestingKind.TOP_LEVEL) {
    if (e.getModifiers().contains(Modifier.PROTECTED)) {
      // It looks like inner classes with protected visibility get marked as public, and then
      // their InnerClasses attributes override that more specifically
      accessFlags = (accessFlags & ~Opcodes.ACC_PROTECTED) | Opcodes.ACC_PUBLIC;
    } else if (e.getModifiers().contains(Modifier.PRIVATE)) {
      // It looks like inner classes with private visibility get marked as package, and then
      // their InnerClasses attributes override that more specifically
      accessFlags = (accessFlags & ~Opcodes.ACC_PRIVATE);
    }
  }

  return accessFlags;
}
 

private void findBuilder() {
    if (classElement.getNestingKind() != NestingKind.TOP_LEVEL || builder) {
        return;
    }
    Collection<? extends BuilderResolver> resolvers = MimeLookup.getLookup(JavaFXEditorUtils.FXML_MIME_TYPE).lookupAll(BuilderResolver.class);
    for (BuilderResolver r : resolvers) {
        String builderName = r.findBuilderClass(compilationInfo, null, className);
        if (builderName != null) {
            FxBean builderBean = provider.getBeanInfo(builderName);
            if (builderBean != null) {
                resultInfo.setBuilder(builderBean);
                builderBean.makeBuilder(resultInfo);
                return;
            }
        }
    }
}
 

static boolean enclosingClassValid(ProcessorContext context, TypeElement enclosingClass){

		// protected, package-private, and public all allow same package
		// access
		if (enclosingClass.getModifiers().contains(Modifier.PRIVATE)) {
			context.messager().printMessage(Kind.ERROR,
					"class cannot be private",
					enclosingClass);
			return false;
		}

		if (enclosingClass.getNestingKind() != NestingKind.TOP_LEVEL
				    && !enclosingClass.getModifiers().contains(Modifier.STATIC)) {
			context.messager().printMessage(Kind.ERROR,
					"class is nested but not static", enclosingClass);
			return false;
		}
		return true;
	}
 

private ReplaceConstructorWithBuilderUI(TreePathHandle constructor, CompilationInfo info) {
    this.refactoring = new ReplaceConstructorWithBuilderRefactoring(constructor);
    ExecutableElement contructorElement = (ExecutableElement) constructor.resolveElement(info);
    this.name = contructorElement.getSimpleName().toString();
    MethodTree constTree = (MethodTree) constructor.resolve(info).getLeaf();
    paramaterNames = new ArrayList<String>();
    parameterTypes = new ArrayList<String>();
    parameterTypeVars = new ArrayList<Boolean>();
    boolean varargs = contructorElement.isVarArgs();
    List<? extends VariableElement> parameterElements = contructorElement.getParameters();
    List<? extends VariableTree> parameters = constTree.getParameters();
    for (int i = 0; i < parameters.size(); i++) {
        VariableTree var = parameters.get(i);
        paramaterNames.add(var.getName().toString());
        String type = contructorElement.getParameters().get(i).asType().toString();
        if(varargs && i+1 == parameters.size()) {
            if(var.getType().getKind() == Tree.Kind.ARRAY_TYPE) {
                ArrayTypeTree att = (ArrayTypeTree) var.getType();
                type = att.getType().toString();
                type += "..."; //NOI18N
            }
        }
        parameterTypes.add(type);
        parameterTypeVars.add(parameterElements.get(i).asType().getKind() == TypeKind.TYPEVAR);
    }
    TypeElement typeEl = (TypeElement) contructorElement.getEnclosingElement();
    if(typeEl.getNestingKind() != NestingKind.TOP_LEVEL) {
        PackageElement packageOf = info.getElements().getPackageOf(typeEl);
        builderFQN = packageOf.toString() + "." + typeEl.getSimpleName().toString();
    } else {
        builderFQN = typeEl.getQualifiedName().toString();
    }
    buildMethodName = "create" + typeEl.getSimpleName();
}
 

@Override
public boolean isAccessible(Scope scope, TypeElement te) {
    if (te == null || scope == null) {
        return false;
    }
    if (te.getQualifiedName().toString().startsWith("REPL.") && te.getNestingKind() == NestingKind.TOP_LEVEL) {
        return false;
    }
    return delegate.isAccessible(scope, te);
}
 

private void validateEnclosingElement(Element element) {
  TypeElement typeElement = ctx.getMoreElements().toTypeElement(element);
  if (typeElement == null) {
    return;
  }
  String simpleName = typeElement.getSimpleName().toString();
  if (simpleName.contains(Constants.BINARY_NAME_DELIMITER)
      || simpleName.contains(Constants.TYPE_NAME_DELIMITER)) {
    throw new AptException(
        Message.DOMA4280, typeElement, new Object[] {typeElement.getQualifiedName()});
  }
  NestingKind nestingKind = typeElement.getNestingKind();
  if (nestingKind == NestingKind.TOP_LEVEL) {
    return;
  } else if (nestingKind == NestingKind.MEMBER) {
    Set<Modifier> modifiers = typeElement.getModifiers();
    if (modifiers.containsAll(Arrays.asList(Modifier.STATIC, Modifier.PUBLIC))) {
      validateEnclosingElement(typeElement.getEnclosingElement());
    } else {
      throw new AptException(
          Message.DOMA4278, typeElement, new Object[] {typeElement.getQualifiedName()});
    }
  } else {
    throw new AptException(
        Message.DOMA4279, typeElement, new Object[] {typeElement.getQualifiedName()});
  }
}
 

@DefinedBy(Api.LANGUAGE_MODEL)
public NestingKind getNestingKind() {
    complete();
    if (owner.kind == PCK)
        return NestingKind.TOP_LEVEL;
    else if (name.isEmpty())
        return NestingKind.ANONYMOUS;
    else if (owner.kind == MTH)
        return NestingKind.LOCAL;
    else
        return NestingKind.MEMBER;
}
 

private static boolean enclosingClassValid(ProcessorContext context, Element element) {
	Element enclosingElement = element.getEnclosingElement();
	while (enclosingElement != null) {
		// skip until we find a class
		if (!enclosingElement.getKind().equals(ElementKind.CLASS))
			break;

		if (!enclosingElement.getKind().equals(ElementKind.CLASS)) {
			context.messager().printMessage(Kind.ERROR,
					"enclosing element(" + enclosingElement.toString() + ") is not a class",
					element);
			return false;
		}

		TypeElement enclosingClass = (TypeElement) enclosingElement;

		// protected, package-private, and public all allow same package
		// access
		if (enclosingClass.getModifiers().contains(Modifier.PRIVATE)) {
			context.messager().printMessage(Kind.ERROR,
					"enclosing class (" + enclosingElement.toString() + ") cannot be private",
					element);
			return false;
		}

		if (enclosingClass.getNestingKind() != NestingKind.TOP_LEVEL
				&& !enclosingClass.getModifiers().contains(Modifier.STATIC)) {
			context.messager().printMessage(Kind.ERROR,
					"enclosing class is nested but not static", element);
			return false;
		}
		enclosingElement = enclosingClass.getEnclosingElement();
	}

	return true;
}
 

public ClassInfo asClassInfo() {
	String fqpn = fullyQualifiedPackageName();
	String className;
	if (enclosingClass.getNestingKind() != NestingKind.TOP_LEVEL) {
		// in case of the static class, we get all the nested classes and
		// replace '.' with '$'
		className = CharMatcher.is('.')
				.replaceFrom(fullyQualifiedName().replace(fqpn + ".", ""), '$');
	} else {
		className = simpleName();
	}
	return new ClassInfo(fqpn, className);
}
 

public String nameOf(final TypeElement e) {
	if (e.getNestingKind() == NestingKind.TOP_LEVEL) { return e.getQualifiedName().toString(); }
	return nameOf((TypeElement) e.getEnclosingElement()) + "." + e.getSimpleName().toString();
}
 

@Override
public NestingKind getNestingKind() {
    return NestingKind.TOP_LEVEL;
}
 

@Override
public NestingKind getNestingKind() {
	return NestingKind.TOP_LEVEL;
}
 

public static boolean isTopLevel(TypeElement type) {
  return type.getNestingKind() == NestingKind.TOP_LEVEL;
}
 

public static GeneratedTypeElement newIosType(
    String name, ElementKind kind, TypeElement superclass, String header) {
  return new GeneratedTypeElement(
      name, kind, null, superclass != null ? superclass.asType() : null, NestingKind.TOP_LEVEL,
      header, true, false);
}
 

private static TypeElement topLevelType(TypeElement type) {
  while (type.getNestingKind() != NestingKind.TOP_LEVEL) {
    type = MoreElements.asType(type.getEnclosingElement());
  }
  return type;
}
 

@Override
public NestingKind getNestingKind() {
  return (enclosingElement.getKind() == ElementKind.PACKAGE)
      ? NestingKind.TOP_LEVEL : NestingKind.MEMBER;
}
 

private static boolean isAccessibleClass(TypeElement te) {
    NestingKind nestingKind = te.getNestingKind();
    return (nestingKind == NestingKind.TOP_LEVEL && te.getModifiers().contains(Modifier.PUBLIC));
}
 

@Override
public NestingKind getNestingKind() {
  return qualifiedName.isTopLevel() ? NestingKind.TOP_LEVEL : NestingKind.MEMBER;
}
 

@Override
public NestingKind getNestingKind() {
    return NestingKind.TOP_LEVEL;
}