CommandFunction.java
net.minecraft.commands.functions.CommandFunction
信息
- 全限定名：net.minecraft.commands.functions.CommandFunction
- 类型：public interface
- 包：net.minecraft.commands.functions
- 源码路径：src/main/java/net/minecraft/commands/functions/CommandFunction.java
- 起始行号：L19
- 职责：
TODO
字段/常量
- 无
内部类/嵌套类型
- 无
构造器
- 无
方法
下面的方法块按源码顺序生成。
Identifier id() @ L20
- 方法名：id
- 源码定位：L20
- 返回类型：Identifier
- 修饰符：package-private
参数:
- 无
说明:
TODO
InstantiatedFunction<T> instantiate(CompoundTag arguments, CommandDispatcher<T> dispatcher) @ L22
- 方法名：instantiate
- 源码定位：L22
- 返回类型：InstantiatedFunction
- 修饰符：package-private
参数:
- arguments: CompoundTag
- dispatcher: CommandDispatcher
说明:
TODO
private static boolean shouldConcatenateNextLine(CharSequence line) @ L24
- 方法名：shouldConcatenateNextLine
- 源码定位：L24
- 返回类型：boolean
- 修饰符：private static
参数:
- line: CharSequence
说明:
TODO
static <T extends ExecutionCommandSource<T>> CommandFunction<T> fromLines(Identifier id, CommandDispatcher<T> dispatcher, T compilationContext, List<String> lines) @ L29
- 方法名：fromLines
- 源码定位：L29
- 返回类型：<T extends ExecutionCommandSource
> CommandFunction - 修饰符：static
参数:
- id: Identifier
- dispatcher: CommandDispatcher
- compilationContext: T
- lines: List
说明:
TODO
static void checkCommandLineLength(CharSequence line) @ L95
- 方法名：checkCommandLineLength
- 源码定位：L95
- 返回类型：void
- 修饰符：static
参数:
- line: CharSequence
说明:
TODO
static <T extends ExecutionCommandSource<T>> UnboundEntryAction<T> parseCommand(CommandDispatcher<T> dispatcher, T compilationContext, StringReader input) @ L102
- 方法名：parseCommand
- 源码定位：L102
- 返回类型：<T extends ExecutionCommandSource
> UnboundEntryAction - 修饰符：static
参数:
- dispatcher: CommandDispatcher
- compilationContext: T
- input: StringReader
说明:
TODO
代码
public interface CommandFunction<T> {
Identifier id();
InstantiatedFunction<T> instantiate(@Nullable CompoundTag arguments, CommandDispatcher<T> dispatcher) throws FunctionInstantiationException;
private static boolean shouldConcatenateNextLine(CharSequence line) {
int length = line.length();
return length > 0 && line.charAt(length - 1) == '\\';
}
static <T extends ExecutionCommandSource<T>> CommandFunction<T> fromLines(
Identifier id, CommandDispatcher<T> dispatcher, T compilationContext, List<String> lines
) {
FunctionBuilder<T> functionBuilder = new FunctionBuilder<>();
for (int i = 0; i < lines.size(); i++) {
int lineNumber = i + 1;
String inputLine = lines.get(i).trim();
String line;
if (shouldConcatenateNextLine(inputLine)) {
StringBuilder builder = new StringBuilder(inputLine);
do {
if (++i == lines.size()) {
throw new IllegalArgumentException("Line continuation at end of file");
}
builder.deleteCharAt(builder.length() - 1);
String innerLine = lines.get(i).trim();
builder.append(innerLine);
checkCommandLineLength(builder);
} while (shouldConcatenateNextLine(builder));
line = builder.toString();
} else {
line = inputLine;
}
checkCommandLineLength(line);
StringReader input = new StringReader(line);
if (input.canRead() && input.peek() != '#') {
if (input.peek() == '/') {
input.skip();
if (input.peek() == '/') {
throw new IllegalArgumentException(
"Unknown or invalid command '" + line + "' on line " + lineNumber + " (if you intended to make a comment, use '#' not '//')"
);
}
String name = input.readUnquotedString();
throw new IllegalArgumentException(
"Unknown or invalid command '"
+ line
+ "' on line "
+ lineNumber
+ " (did you mean '"
+ name
+ "'? Do not use a preceding forwards slash.)"
);
}
if (input.peek() == '$') {
functionBuilder.addMacro(line.substring(1), lineNumber, compilationContext);
} else {
try {
functionBuilder.addCommand(parseCommand(dispatcher, compilationContext, input));
} catch (CommandSyntaxException var11) {
throw new IllegalArgumentException("Whilst parsing command on line " + lineNumber + ": " + var11.getMessage());
}
}
}
}
return functionBuilder.build(id);
}
static void checkCommandLineLength(CharSequence line) {
if (line.length() > 2000000) {
CharSequence truncated = line.subSequence(0, Math.min(512, 2000000));
throw new IllegalStateException("Command too long: " + line.length() + " characters, contents: " + truncated + "...");
}
}
static <T extends ExecutionCommandSource<T>> UnboundEntryAction<T> parseCommand(CommandDispatcher<T> dispatcher, T compilationContext, StringReader input) throws CommandSyntaxException {
ParseResults<T> parse = dispatcher.parse(input, compilationContext);
Commands.validateParseResults(parse);
Optional<ContextChain<T>> commandChain = ContextChain.tryFlatten(parse.getContext().build(input.getString()));
if (commandChain.isEmpty()) {
throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherUnknownCommand().createWithContext(parse.getReader());
} else {
return new BuildContexts.Unbound<>(input.getString(), commandChain.get());
}
}
}引用的其他类
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方法调用 - 关联成员:
Commands.validateParseResults()
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返回值
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返回值
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返回值
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参数
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参数/返回值
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