Quartz 4

FunctionArgument.java

4 min read

FunctionArgument.java

net.minecraft.commands.arguments.item.FunctionArgument

信息

  • 全限定名：net.minecraft.commands.arguments.item.FunctionArgument
  • 类型：public class
  • 包：net.minecraft.commands.arguments.item
  • 源码路径：src/main/java/net/minecraft/commands/arguments/item/FunctionArgument.java
  • 起始行号：L19
  • 实现：ArgumentType<FunctionArgument.Result>
  • 职责：

    TODO

字段/常量

  • EXAMPLES

    • 类型: Collection<String>
    • 修饰符: private static final
    • 源码定位: L20
    • 说明:

      TODO

  • ERROR_UNKNOWN_TAG

    • 类型: DynamicCommandExceptionType
    • 修饰符: private static final
    • 源码定位: L21
    • 说明:

      TODO

  • ERROR_UNKNOWN_FUNCTION

    • 类型: DynamicCommandExceptionType
    • 修饰符: private static final
    • 源码定位: L24
    • 说明:

      TODO

内部类/嵌套类型

  • net.minecraft.commands.arguments.item.FunctionArgument.Result
    • 类型: interface
    • 修饰符: public
    • 源码定位: L119
    • 说明:

      TODO

构造器

  • 无

方法

下面的方法块按源码顺序生成。

public static FunctionArgument functions() @ L28

  • 方法名：functions
  • 源码定位：L28
  • 返回类型：FunctionArgument
  • 修饰符：public static

参数:

  • 无

说明:

TODO

public FunctionArgument.Result parse(StringReader reader) @ L32

  • 方法名：parse
  • 源码定位：L32
  • 返回类型：FunctionArgument.Result
  • 修饰符：public

参数:

  • reader: StringReader

说明:

TODO

private static CommandFunction<CommandSourceStack> getFunction(CommandContext<CommandSourceStack> c, Identifier id) @ L85

  • 方法名：getFunction
  • 源码定位：L85
  • 返回类型：CommandFunction
  • 修饰符：private static

参数:

  • c: CommandContext
  • id: Identifier

说明:

TODO

private static Collection<CommandFunction<CommandSourceStack>> getFunctionTag(CommandContext<CommandSourceStack> c, Identifier id) @ L89

  • 方法名：getFunctionTag
  • 源码定位：L89
  • 返回类型：Collection<CommandFunction>
  • 修饰符：private static

参数:

  • c: CommandContext
  • id: Identifier

说明:

TODO

public static Collection<CommandFunction<CommandSourceStack>> getFunctions(CommandContext<CommandSourceStack> context, String name) @ L98

  • 方法名：getFunctions
  • 源码定位：L98
  • 返回类型：Collection<CommandFunction>
  • 修饰符：public static

参数:

  • context: CommandContext
  • name: String

说明:

TODO

public static Pair<Identifier,Either<CommandFunction<CommandSourceStack>,Collection<CommandFunction<CommandSourceStack>>>> getFunctionOrTag(CommandContext<CommandSourceStack> context, String name) @ L102

  • 方法名：getFunctionOrTag
  • 源码定位：L102
  • 返回类型：Pair<Identifier,Either<CommandFunction,Collection<CommandFunction>>>
  • 修饰符：public static

参数:

  • context: CommandContext
  • name: String

说明:

TODO

public static Pair<Identifier,Collection<CommandFunction<CommandSourceStack>>> getFunctionCollection(CommandContext<CommandSourceStack> context, String name) @ L108

  • 方法名：getFunctionCollection
  • 源码定位：L108
  • 返回类型：Pair<Identifier,Collection<CommandFunction>>
  • 修饰符：public static

参数:

  • context: CommandContext
  • name: String

说明:

TODO

public Collection<String> getExamples() @ L114

  • 方法名：getExamples
  • 源码定位：L114
  • 返回类型：Collection
  • 修饰符：public

参数:

  • 无

说明:

TODO

代码

public class FunctionArgument implements ArgumentType<FunctionArgument.Result> {
    private static final Collection<String> EXAMPLES = Arrays.asList("foo", "foo:bar", "#foo");
    private static final DynamicCommandExceptionType ERROR_UNKNOWN_TAG = new DynamicCommandExceptionType(
        tag -> Component.translatableEscape("arguments.function.tag.unknown", tag)
    );
    private static final DynamicCommandExceptionType ERROR_UNKNOWN_FUNCTION = new DynamicCommandExceptionType(
        value -> Component.translatableEscape("arguments.function.unknown", value)
    );
 
    public static FunctionArgument functions() {
        return new FunctionArgument();
    }
 
    public FunctionArgument.Result parse(StringReader reader) throws CommandSyntaxException {
        if (reader.canRead() && reader.peek() == '#') {
            reader.skip();
            final Identifier id = Identifier.read(reader);
            return new FunctionArgument.Result() {
                {
                    Objects.requireNonNull(FunctionArgument.this);
                }
 
                @Override
                public Collection<CommandFunction<CommandSourceStack>> create(CommandContext<CommandSourceStack> c) throws CommandSyntaxException {
                    return FunctionArgument.getFunctionTag(c, id);
                }
 
                @Override
                public Pair<Identifier, Either<CommandFunction<CommandSourceStack>, Collection<CommandFunction<CommandSourceStack>>>> unwrap(
                    CommandContext<CommandSourceStack> context
                ) throws CommandSyntaxException {
                    return Pair.of(id, Either.right(FunctionArgument.getFunctionTag(context, id)));
                }
 
                @Override
                public Pair<Identifier, Collection<CommandFunction<CommandSourceStack>>> unwrapToCollection(CommandContext<CommandSourceStack> context) throws CommandSyntaxException {
                    return Pair.of(id, FunctionArgument.getFunctionTag(context, id));
                }
            };
        } else {
            final Identifier id = Identifier.read(reader);
            return new FunctionArgument.Result() {
                {
                    Objects.requireNonNull(FunctionArgument.this);
                }
 
                @Override
                public Collection<CommandFunction<CommandSourceStack>> create(CommandContext<CommandSourceStack> c) throws CommandSyntaxException {
                    return Collections.singleton(FunctionArgument.getFunction(c, id));
                }
 
                @Override
                public Pair<Identifier, Either<CommandFunction<CommandSourceStack>, Collection<CommandFunction<CommandSourceStack>>>> unwrap(
                    CommandContext<CommandSourceStack> context
                ) throws CommandSyntaxException {
                    return Pair.of(id, Either.left(FunctionArgument.getFunction(context, id)));
                }
 
                @Override
                public Pair<Identifier, Collection<CommandFunction<CommandSourceStack>>> unwrapToCollection(CommandContext<CommandSourceStack> context) throws CommandSyntaxException {
                    return Pair.of(id, Collections.singleton(FunctionArgument.getFunction(context, id)));
                }
            };
        }
    }
 
    private static CommandFunction<CommandSourceStack> getFunction(CommandContext<CommandSourceStack> c, Identifier id) throws CommandSyntaxException {
        return c.getSource().getServer().getFunctions().get(id).orElseThrow(() -> ERROR_UNKNOWN_FUNCTION.create(id.toString()));
    }
 
    private static Collection<CommandFunction<CommandSourceStack>> getFunctionTag(CommandContext<CommandSourceStack> c, Identifier id) throws CommandSyntaxException {
        Collection<CommandFunction<CommandSourceStack>> tag = c.getSource().getServer().getFunctions().getTag(id);
        if (tag == null) {
            throw ERROR_UNKNOWN_TAG.create(id.toString());
        } else {
            return tag;
        }
    }
 
    public static Collection<CommandFunction<CommandSourceStack>> getFunctions(CommandContext<CommandSourceStack> context, String name) throws CommandSyntaxException {
        return context.getArgument(name, FunctionArgument.Result.class).create(context);
    }
 
    public static Pair<Identifier, Either<CommandFunction<CommandSourceStack>, Collection<CommandFunction<CommandSourceStack>>>> getFunctionOrTag(
        CommandContext<CommandSourceStack> context, String name
    ) throws CommandSyntaxException {
        return context.getArgument(name, FunctionArgument.Result.class).unwrap(context);
    }
 
    public static Pair<Identifier, Collection<CommandFunction<CommandSourceStack>>> getFunctionCollection(
        CommandContext<CommandSourceStack> context, String name
    ) throws CommandSyntaxException {
        return context.getArgument(name, FunctionArgument.Result.class).unwrapToCollection(context);
    }
 
    @Override
    public Collection<String> getExamples() {
        return EXAMPLES;
    }
 
    public interface Result {
        Collection<CommandFunction<CommandSourceStack>> create(CommandContext<CommandSourceStack> context) throws CommandSyntaxException;
 
        Pair<Identifier, Either<CommandFunction<CommandSourceStack>, Collection<CommandFunction<CommandSourceStack>>>> unwrap(
            CommandContext<CommandSourceStack> context
        ) throws CommandSyntaxException;
 
        Pair<Identifier, Collection<CommandFunction<CommandSourceStack>>> unwrapToCollection(CommandContext<CommandSourceStack> context) throws CommandSyntaxException;
    }
}

引用的其他类

  • CommandSourceStack

    • 引用位置: 参数/返回值

  • CommandFunction

    • 引用位置: 返回值

  • Component

    • 引用位置: 方法调用
    • 关联成员: Component.translatableEscape()

  • Identifier

    • 引用位置: 参数/方法调用/返回值
    • 关联成员: Identifier.read()

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