require in suggestions LOL

[DietrichPaul]

i got bored and wanted to change the bukkit command system to brigadier's in 1.8 xD. Now i am facing the following problem:
if a literalargumenttype was registered with require in the dispatcher, it will still be displayed in suggestions if require is returning false 😒
if I have done something wrong, please tell me 😂.

[xhyrom]

brigadier/src/main/java/com/mojang/brigadier/CommandDispatcher.java

Lines 538 to 544 in b92c420

	for (final CommandNode<S> node : parent.getChildren()) {
	CompletableFuture<Suggestions> future = Suggestions.empty();
	try {
	future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start));
	} catch (final CommandSyntaxException ignored) {
	}
	futures[i++] = future;

there could be something like this:

if (!node.canUse(context.getSource())) {
    futures[i++] = Suggestions.empty();
    continue;
}