This adds basic support for meta-annotations for commands and
parameters and allows users to create their own custom annotations
combining certain existing annotations and values. For example, a user
can now define their own `CustomAnnotation` which combines a
condition and a flag:
```java
@Conditions("conditionname:confitionconfig")
@Flags("flagconfig=flagvalue")
public @interface CustomAnnotation {}
```
(Necessary `@Retention` and `@Target` ignore for brevity)
And use it just like they would normally.
This works by recursively going through the annotations, instead of
just looking at the root level. The reason most existing annotations
had to be touched is for them to be allowed on other annotations as
most of them were restricted to method or fields.
Currently there's no limit on nesting because if the user wants to
nest it to obscure levels - so be it. We could decide to limit this at
some point to prevent users from shooting themselves in the foot if
that's necessary.
`@Dependency` and was specifically ignored as I don't think it makes
sense for that to be supported in this use case.
Relates to: #89
Fixes a bug introduced by PR 200. The bug related to the Values annotation which uses this getCompletionValues method also.
This is definitely not the propersolution. The underlying issue is
related to the logic calling `args` which is the original argument
array. And it should not be using arguments which have been resolved in
a previous parameter.
I was not able to find a quick/simple way to accommodate that issue.
This PR adds support for exceptions in CompletableFuture in Commands.
Usage: Just return a CompletableFuture. ACF will catch the exceptionally stuff.
```java
public CompletableFuture<Void> futuredExecution(Player player) {
return CompletableFuture.failedFuture(new InvalidCommandArgument("Failed in future.", false));
}
```
I added support for multi word tab completion.
Current problem:
the replacement "example" contains completions with whitespaces
```java
@CommandCompletion("@example")
public void test(Player player, String takesTheRest) {...}
```
"takesTheRest" takes all the whole rest howewer the tab completion only supports one word.
I don't use the ACFUtils much and maybe there are some ugly checks, feel free to refactor.
Aikar