ReturnCommand.java

net.minecraft.server.commands.ReturnCommand

信息

• 全限定名：net.minecraft.server.commands.ReturnCommand
• 类型：public class
• 包：net.minecraft.server.commands
• 源码路径：src/main/java/net/minecraft/server/commands/ReturnCommand.java
• 起始行号：L19
• 职责：

  TODO

字段/常量

• 无

内部类/嵌套类型

• net.minecraft.server.commands.ReturnCommand.ReturnFailCustomExecutor

  • 类型: class
  • 修饰符: private static
  • 源码定位: L33
  • 说明:

    TODO

• net.minecraft.server.commands.ReturnCommand.ReturnFromCommandCustomModifier

  • 类型: class
  • 修饰符: private static
  • 源码定位: L42
  • 说明:

    TODO

• net.minecraft.server.commands.ReturnCommand.ReturnValueCustomExecutor

  • 类型: class
  • 修饰符: private static
  • 源码定位: L57
  • 说明:

    TODO

构造器

• 无

方法

下面的方法块按源码顺序生成。

public static <T extends ExecutionCommandSource<T>> void register(CommandDispatcher<T> dispatcher) @ L20

• 方法名：register
• 源码定位：L20
• 返回类型：<T extends ExecutionCommandSource> void
• 修饰符：public static

参数:

• dispatcher: CommandDispatcher

说明:

TODO

代码

public class ReturnCommand {
    public static <T extends ExecutionCommandSource<T>> void register(CommandDispatcher<T> dispatcher) {
        dispatcher.register(
            LiteralArgumentBuilder.<T>literal("return")
                .requires(Commands.hasPermission(Commands.LEVEL_GAMEMASTERS))
                .then(
                    RequiredArgumentBuilder.<T, Integer>argument("value", IntegerArgumentType.integer())
                        .executes(new ReturnCommand.ReturnValueCustomExecutor<>())
                )
                .then(LiteralArgumentBuilder.<T>literal("fail").executes(new ReturnCommand.ReturnFailCustomExecutor<>()))
                .then(LiteralArgumentBuilder.<T>literal("run").forward(dispatcher.getRoot(), new ReturnCommand.ReturnFromCommandCustomModifier<>(), false))
        );
    }
 
    private static class ReturnFailCustomExecutor<T extends ExecutionCommandSource<T>> implements CustomCommandExecutor.CommandAdapter<T> {
        public void run(T sender, ContextChain<T> currentStep, ChainModifiers modifiers, ExecutionControl<T> output) {
            sender.callback().onFailure();
            Frame frame = output.currentFrame();
            frame.returnFailure();
            frame.discard();
        }
    }
 
    private static class ReturnFromCommandCustomModifier<T extends ExecutionCommandSource<T>> implements CustomModifierExecutor.ModifierAdapter<T> {
        public void apply(T originalSource, List<T> currentSources, ContextChain<T> currentStep, ChainModifiers modifiers, ExecutionControl<T> output) {
            if (currentSources.isEmpty()) {
                if (modifiers.isReturn()) {
                    output.queueNext(FallthroughTask.instance());
                }
            } else {
                output.currentFrame().discard();
                ContextChain<T> nextState = currentStep.nextStage();
                String command = nextState.getTopContext().getInput();
                output.queueNext(new BuildContexts.Continuation<>(command, nextState, modifiers.setReturn(), originalSource, currentSources));
            }
        }
    }
 
    private static class ReturnValueCustomExecutor<T extends ExecutionCommandSource<T>> implements CustomCommandExecutor.CommandAdapter<T> {
        public void run(T sender, ContextChain<T> currentStep, ChainModifiers modifiers, ExecutionControl<T> output) {
            int returnValue = IntegerArgumentType.getInteger(currentStep.getTopContext(), "value");
            sender.callback().onSuccess(returnValue);
            Frame frame = output.currentFrame();
            frame.returnSuccess(returnValue);
            frame.discard();
        }
    }
}

引用的其他类

• Commands

  • 引用位置: 方法调用
  • 关联成员: Commands.hasPermission()

• ExecutionCommandSource

  • 引用位置: 返回值

• FallthroughTask

  • 引用位置: 方法调用
  • 关联成员: FallthroughTask.instance()