Examples with CommandContext com.mojang.brigadier.context.CommandContext used on opensource projects

Example 1 with CommandContext

use of com.mojang.brigadier.context.CommandContext in project Bookshelf by Darkhax-Minecraft.

the class CommandHand method hand.

private int hand(CommandContext<CommandSource> context) throws CommandSyntaxException {
    final OutputType type = context.getArgument("type", OutputType.class);
    final ServerPlayerEntity player = context.getSource().getPlayerOrException();
    final String outputText = type.converter.apply(player.getMainHandItem());
    final ITextComponent component = TextComponentUtils.wrapInSquareBrackets(new StringTextComponent(outputText).withStyle((style) -> {
        return style.withColor(TextFormatting.GREEN).withClickEvent(new ClickEvent(ClickEvent.Action.COPY_TO_CLIPBOARD, outputText)).withHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new TranslationTextComponent("chat.copy.click"))).withInsertion(outputText);
    }));
    context.getSource().sendSuccess(component, false);
    return 0;
}

Example 2 with CommandContext

use of com.mojang.brigadier.context.CommandContext in project SpongeCommon by SpongePowered.

the class SpongeCommandDispatcher method parseNodes.

private ParseResults<CommandSourceStack> parseNodes(// Sponge: used in permission checks
final boolean isRoot, // Sponge: needed for handling what we do with defaults.
final boolean isSuggestion, final CommandNode<CommandSourceStack> node, final SpongeStringReader originalReader, final SpongeCommandContextBuilder contextSoFar) {
    final CommandSourceStack source = contextSoFar.getSource();
    // Sponge Start
    Map<CommandNode<CommandSourceStack>, CommandSyntaxException> errors = null;
    List<ParseResults<CommandSourceStack>> potentials = null;
    // Sponge End
    final int cursor = originalReader.getCursor();
    // Sponge Start: get relevant nodes if we're completing
    final Collection<? extends CommandNode<CommandSourceStack>> nodes;
    if (isSuggestion && node instanceof SpongeNode) {
        nodes = ((SpongeNode) node).getRelevantNodesForSuggestions(originalReader);
    } else if (originalReader.canRead()) {
        nodes = node.getRelevantNodes(originalReader);
    } else {
        // Reader cannot read anymore so ONLY nodes with parsers that do not read can be processed
        nodes = node.getChildren().stream().filter(n -> n instanceof SpongeArgumentCommandNode && (((SpongeArgumentCommandNode<?>) n).getParser().doesNotRead())).collect(Collectors.toList());
    }
    for (final CommandNode<CommandSourceStack> child : nodes) {
        final boolean doesNotRead = child instanceof SpongeArgumentCommandNode && ((SpongeArgumentCommandNode<?>) child).getParser().doesNotRead();
        // if (!child.canUse(source)) {
        if (!SpongeNodePermissionCache.canUse(isRoot, this, child, source)) {
            // Sponge End
            continue;
        }
        // Sponge Start
        final SpongeCommandContextBuilder context = contextSoFar.copy();
        final SpongeStringReader reader = new SpongeStringReader(originalReader);
        // Sponge End
        try {
            try {
                child.parse(reader, context);
            } catch (final RuntimeException ex) {
                throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherParseException().createWithContext(reader, ex.getMessage());
            }
            // Sponge Start: if we didn't consume anything we don't want Brig to complain at us.
            if (reader.getCursor() == cursor) {
                // of suggestions.
                if (isSuggestion && !reader.canRead()) {
                    throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherExpectedArgumentSeparator().createWithContext(reader);
                }
                reader.unskipWhitespace();
            } else if (reader.canRead()) {
                // Sponge End
                if (reader.peek() != CommandDispatcher.ARGUMENT_SEPARATOR_CHAR) {
                    throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherExpectedArgumentSeparator().createWithContext(reader);
                }
            }
        } catch (final CommandSyntaxException ex) {
            if (errors == null) {
                errors = new LinkedHashMap<>();
            }
            errors.put(child, ex);
            reader.setCursor(cursor);
            continue;
        }
        context.withCommand(child.getCommand());
        // must let it do so.
        if (this.shouldContinueTraversing(reader, child)) {
            // if (reader.canRead(child.getRedirect() == null ? 2 : 1)) {
            // Sponge End
            reader.skip();
            // Sponge Start: redirect is now in a local variable as we use it a fair bit
            final CommandNode<CommandSourceStack> redirect = child.getRedirect();
            if (redirect != null) {
                // If we've redirected to the root node, we may need to head back to our command
                // manager - so we should check to see if that's going to actually be the case.
                final boolean redirectingToRoot = redirect == this.getRoot();
                final SpongeCommandContextBuilder childContext = new SpongeCommandContextBuilder(this, source, child.getRedirect(), reader.getCursor());
                // For a redirect, we want to ensure all of our currently parsed information is available.
                context.applySpongeElementsTo(childContext, false);
                ParseResults<CommandSourceStack> parse = null;
                if (redirectingToRoot) {
                    // check to see if we can get an element
                    final ArgumentReader.Immutable snapshot = reader.immutable();
                    try {
                        final String commandToAttempt = reader.peekString();
                        final int offset = reader.cursor();
                        if (redirect.getChild(commandToAttempt) == null) {
                            // The redirect fails, so we intercept here, and reroute to our command
                            // manager with the rest of the string and the new context.
                            reader.parseString();
                            final boolean hasMore = reader.canRead();
                            reader.skipWhitespace();
                            final Optional<CommandMapping> optionalMapping = this.commandManager.commandMapping(commandToAttempt);
                            if (optionalMapping.isPresent()) {
                                final CommandMapping mapping = optionalMapping.get();
                                final String remaining = reader.remaining();
                                childContext.withCommand(commandContext -> {
                                    final SpongeCommandContext spongeContext = (SpongeCommandContext) commandContext;
                                    try {
                                        return mapping.registrar().process(spongeContext.cause(), mapping, commandToAttempt, remaining).result();
                                    } catch (final CommandException e) {
                                        throw new SpongeCommandSyntaxException(e, spongeContext);
                                    }
                                });
                                childContext.withNode(new DummyCommandNode(childContext.getCommand()), StringRange.between(offset, reader.totalLength()));
                                childContext.setNonBrigCommand(hasMore ? new String[] { commandToAttempt, remaining } : new String[] { commandToAttempt });
                                reader.setCursor(reader.totalLength());
                                parse = new ParseResults<>(childContext, reader, Collections.emptyMap());
                            } else {
                                // We'll just let this parser fail as normal.
                                reader.setState(snapshot);
                            }
                        }
                    } catch (final ArgumentParseException ignored) {
                        // ignore it, it'll handle it later.
                        reader.setState(snapshot);
                    }
                }
                if (parse == null) {
                    parse = this.parseNodes(redirect instanceof RootCommandNode, isSuggestion, child.getRedirect(), reader, childContext);
                }
                // It worked out, so let's apply it back. We clear and reapply, it's simpler than comparing and conditional adding.
                childContext.applySpongeElementsTo(context, true);
                // Sponge End
                context.withChild(parse.getContext());
                final ParseResults<CommandSourceStack> parse2 = new ParseResults<>(context, parse.getReader(), parse.getExceptions());
                if (doesNotRead && potentials != null) {
                    // If this is a optional or default parameter we only add the redirect as a potential option
                    potentials.add(parse2);
                    continue;
                }
                return parse2;
            } else {
                final ParseResults<CommandSourceStack> parse = this.parseNodes(false, isSuggestion, child, reader, context);
                if (potentials == null) {
                    potentials = new ArrayList<>(1);
                }
                potentials.add(parse);
            }
        } else {
            if (potentials == null) {
                potentials = new ArrayList<>(1);
            }
            potentials.add(new ParseResults<>(context, reader, Collections.emptyMap()));
        }
    }
    if (potentials != null) {
        if (potentials.size() > 1) {
            potentials.sort((a, b) -> {
                if (!a.getReader().canRead() && b.getReader().canRead()) {
                    return -1;
                }
                if (a.getReader().canRead() && !b.getReader().canRead()) {
                    return 1;
                }
                if (a.getExceptions().isEmpty() && !b.getExceptions().isEmpty()) {
                    return -1;
                }
                if (!a.getExceptions().isEmpty() && b.getExceptions().isEmpty()) {
                    return 1;
                }
                // If we get here both potentials parsed everything and there was no exception
                // BUT if parsing stopped at a non-terminal node this will cause an error later
                // see at the end of #execute() where !foundCommand
                // Instead we attempt to sort commands before that happens
                final Command<CommandSourceStack> aCommand = SpongeCommandDispatcher.getCommand(a.getContext());
                final Command<CommandSourceStack> bCommand = SpongeCommandDispatcher.getCommand(b.getContext());
                if (aCommand == null && bCommand != null) {
                    return 1;
                } else if (aCommand != null && bCommand == null) {
                    return -1;
                }
                return 0;
            });
        }
        return potentials.get(0);
    }
    return new ParseResults<>(contextSoFar, originalReader, errors == null ? Collections.emptyMap() : errors);
}

Example 3 with CommandContext

use of com.mojang.brigadier.context.CommandContext in project SpongeCommon by SpongePowered.

the class SpongeCommandDispatcher method execute.

@Override
public int execute(final ParseResults<CommandSourceStack> parse) throws CommandSyntaxException {
    if (parse.getReader().canRead()) {
        // TODO plugin exception handling here
        if (parse.getExceptions().size() == 1) {
            throw parse.getExceptions().values().iterator().next();
        } else if (parse.getContext().getRange().isEmpty()) {
            throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherUnknownCommand().createWithContext(parse.getReader());
        } else {
            throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherUnknownArgument().createWithContext(parse.getReader());
        // throw new SimpleCommandExceptionType(new LiteralMessage("Too many arguments")).createWithContext(parse.getReader());
        }
    }
    int result = 0;
    int successfulForks = 0;
    boolean forked = false;
    boolean foundCommand = false;
    final String command = parse.getReader().getString();
    final CommandContext<CommandSourceStack> original = parse.getContext().build(command);
    List<CommandContext<CommandSourceStack>> contexts = Collections.singletonList(original);
    ArrayList<CommandContext<CommandSourceStack>> next = null;
    while (contexts != null) {
        final int size = contexts.size();
        for (int i = 0; i < size; i++) {
            final CommandContext<CommandSourceStack> context = contexts.get(i);
            final CommandContext<CommandSourceStack> child = context.getChild();
            if (child != null) {
                forked |= context.isForked();
                if (child.hasNodes()) {
                    // Sponge Start
                    // 
                    // Basically, no we haven't Mojang. Getting here is no guarantee that a
                    // command executes. I imagine what's happened is that this was originally
                    // recursive and called itself, by doing so, setting this true made sense
                    // while the child method handled whether something worked out or not, but
                    // design reasons would mean that wouldn't work.
                    // 
                    // It's not obvious what this is really meant to achieve, because by setting
                    // this true here, context.onCommandComplete(...) may never be called.
                    // 
                    // We want a command to run, that's only in the else if down below.
                    // 
                    // foundCommand = true
                    // Sponge End
                    final RedirectModifier<CommandSourceStack> modifier = context.getRedirectModifier();
                    if (modifier == null) {
                        if (next == null) {
                            next = new ArrayList<>(1);
                        }
                        next.add(child.copyFor(context.getSource()));
                    } else {
                        try {
                            final Collection<CommandSourceStack> results = modifier.apply(context);
                            if (!results.isEmpty()) {
                                if (next == null) {
                                    next = new ArrayList<>(results.size());
                                }
                                for (final CommandSourceStack source : results) {
                                    next.add(child.copyFor(source));
                                }
                            }
                        } catch (final CommandSyntaxException ex) {
                            // Sponge Start: They probably meant to do this here - the consumer is notified at this point.
                            foundCommand = true;
                            // Soonge End
                            this.resultConsumer.onCommandComplete(context, false, 0);
                            if (!forked) {
                                throw ex;
                            }
                        }
                    }
                }
            } else if (context.getCommand() != null) {
                foundCommand = true;
                try {
                    final int value = context.getCommand().run(context);
                    result += value;
                    this.resultConsumer.onCommandComplete(context, true, value);
                    successfulForks++;
                } catch (final CommandSyntaxException ex) {
                    this.resultConsumer.onCommandComplete(context, false, 0);
                    if (!forked) {
                        throw ex;
                    }
                }
            }
        }
        contexts = next;
        next = null;
    }
    if (!foundCommand) {
        this.resultConsumer.onCommandComplete(original, false, 0);
        throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherUnknownCommand().createWithContext(parse.getReader());
    }
    return forked ? successfulForks : result;
}