GH-504 Fix nullable argument profiles

litecommands-annotations/src/dev/rollczi/litecommands/annotations/AnnotationProcessorService.java

@@ -62,8 +62,6 @@ public static <SENDER> AnnotationProcessorService<SENDER> defaultService() {
             .register(new PriorityAnnotationResolver<>())
             .register(new ValidateAnnotationResolver<>())
             .register(new CooldownAnnotationResolver<>())
-            // argument meta processors
-            .register(new KeyAnnotationResolver<>())
             // universal processor for requirements such as @Arg, @Varargs, @Flag, @Context, @Bind and more
             .register(new RequirementDefinitionProcessor<>())
             // profile processors (they apply profiles to arguments)
@@ -76,6 +74,8 @@ public static <SENDER> AnnotationProcessorService<SENDER> defaultService() {
             .register(new QuotedAnnotationProcessor<>())
             .register(new NullableArgumentProcessor<>())
             .register(new OptionalArgArgumentProcessor<>())
+            // argument meta processors
+            .register(new KeyAnnotationResolver<>())
             ;
     }
 

litecommands-annotations/test/dev/rollczi/litecommands/annotations/argument/resolver/nullable/NullableTest.java

@@ -8,9 +8,6 @@
 
 class NullableTest extends LiteTestSpec {
 
-    static LiteTestConfig config = builder -> builder
-        .advanced();
-
     @Command(name = "nullable")
     static class NullableTestCommand {
         @Execute

litecommands-annotations/test/dev/rollczi/litecommands/annotations/argument/resolver/nullable/OptionalTest.java

@@ -0,0 +1,54 @@
+package dev.rollczi.litecommands.annotations.argument.resolver.nullable;
+
+import dev.rollczi.litecommands.annotations.argument.Arg;
+import dev.rollczi.litecommands.annotations.argument.Key;
+import dev.rollczi.litecommands.annotations.command.Command;
+import dev.rollczi.litecommands.annotations.execute.Execute;
+import dev.rollczi.litecommands.annotations.optional.OptionalArg;
+import dev.rollczi.litecommands.argument.ArgumentKey;
+import dev.rollczi.litecommands.argument.parser.ParseResult;
+import dev.rollczi.litecommands.argument.parser.Parser;
+import dev.rollczi.litecommands.unit.annotations.LiteTestSpec;
+import java.util.Optional;
+import org.junit.jupiter.api.Test;
+
+class OptionalTest extends LiteTestSpec {
+
+    interface IFaction {}
+
+    static class Faction implements IFaction {}
+
+    static LiteTestConfig config = builder -> builder
+        .argumentParser(Faction.class, ArgumentKey.of("faction"), Parser.of((invocation, text) -> ParseResult.success(new Faction())))
+        .argumentParser(IFaction.class, ArgumentKey.of("ifaction"), Parser.of((invocation, text) -> ParseResult.success(new Faction())))
+        .advanced();
+
+    @Command(name = "optional")
+    static class OptionalTestCommand {
+        @Execute
+        String executeOptional(@Arg("display-faction") @Key("faction") Optional<Faction> faction) {
+            return faction.isPresent() ? "present" : "not present";
+        }
+
+        @Execute(name = "interface")
+        String executeInterfaceOptional(@OptionalArg("display-faction") @Key("ifaction") IFaction faction) {
+            return faction != null ? "interface present" : "interface not present";
+        }
+    }
+
+    @Test
+    void testOptionalExecute() {
+        platform.execute("optional")
+            .assertSuccess("not present");
+
+        platform.execute("optional faction")
+            .assertSuccess("present");
+
+        platform.execute("optional interface")
+            .assertSuccess("interface not present");
+
+        platform.execute("optional interface faction")
+            .assertSuccess("interface present");
+    }
+
+}

litecommands-bukkit/src/dev/rollczi/litecommands/bukkit/BukkitPlatform.java

@@ -17,10 +17,8 @@ class BukkitPlatform extends AbstractPlatform<CommandSender, LiteBukkitSettings>
     protected void hook(CommandRoute<CommandSender> commandRoute, PlatformInvocationListener<CommandSender> invocationHook, PlatformSuggestionListener<CommandSender> suggestionHook) {
         BukkitCommand bukkitSimpleCommand = new BukkitCommand(settings, commandRoute, invocationHook, suggestionHook);
 
-        for (String name : commandRoute.names()) {
-            this.settings.commandsRegistry().register(name, settings.fallbackPrefix(), bukkitSimpleCommand);
-        }
         this.settings.tabCompleter().register(settings.fallbackPrefix(), bukkitSimpleCommand);
+        this.settings.commandsRegistry().register(commandRoute.getName(), settings.fallbackPrefix(), bukkitSimpleCommand);
     }
 
     @Override

litecommands-core/src/dev/rollczi/litecommands/argument/Argument.java

@@ -38,6 +38,9 @@ default Optional<ParseResult<T>> defaultValue() {
     @ApiStatus.Experimental
     <NEW> Argument<NEW> child(TypeToken<NEW> type);
 
+    @ApiStatus.Experimental
+    Argument<T> withoutProfile(ArgumentProfileNamespace<?> profile);
+
     static <T> Argument<T> of(String name, Class<T> type) {
         return new SimpleArgument<>(name, TypeToken.of(type));
     }

litecommands-core/src/dev/rollczi/litecommands/argument/SimpleArgument.java

@@ -117,7 +117,29 @@ public PrioritizedList<ArgumentProfile<?>> getProfiles() {
 
     @Override
     public <NEW> Argument<NEW> child(TypeToken<NEW> type) {
-        return new SimpleArgument<>(name, type, this);
+        SimpleArgument<NEW> newSimpleArgument = new SimpleArgument<>(name, type, this);
+        newSimpleArgument.setKey(key.withDefaultNamespace());
+        newSimpleArgument.meta.putAll(this.meta);
+        for (ArgumentProfile argumentProfile : profiles) {
+            newSimpleArgument.addProfile(argumentProfile);
+        }
+        return newSimpleArgument;
+    }
+
+    @Override
+    public Argument<T> withoutProfile(ArgumentProfileNamespace<?> profile) {
+        SimpleArgument<T> argument = new SimpleArgument<>(name, type, nullable);
+        argument.setKey(key.withDefaultNamespace());
+        argument.meta.putAll(this.meta);
+        for (ArgumentProfile argumentProfile : profiles) {
+            if (!argumentProfile.getNamespace().equals(profile)) {
+                argument.addProfile(argumentProfile);
+            }
+            else {
+                argument.meta.remove(profile.asMetaKey());
+            }
+        }
+        return argument;
     }
 
     @Override

litecommands-core/src/dev/rollczi/litecommands/argument/parser/Parser.java

@@ -3,10 +3,12 @@
 import dev.rollczi.litecommands.LiteCommandsException;
 import dev.rollczi.litecommands.argument.Argument;
 import dev.rollczi.litecommands.argument.matcher.Matcher;
+import dev.rollczi.litecommands.argument.resolver.ArgumentResolver;
 import dev.rollczi.litecommands.input.raw.RawInput;
 import dev.rollczi.litecommands.invocation.Invocation;
 import dev.rollczi.litecommands.range.Rangeable;
 import dev.rollczi.litecommands.requirement.RequirementResult;
+import java.util.function.BiFunction;
 import org.jetbrains.annotations.ApiStatus;
 
 public interface Parser<SENDER, PARSED> extends Matcher<SENDER, PARSED>, Rangeable<Argument<PARSED>> {
@@ -42,4 +44,14 @@ default boolean match(Invocation<SENDER> invocation, Argument<PARSED> argument,
         throw new LiteCommandsException("Async parsers should override Parser#match method! (" + this.getClass().getName() + ")");
     }
 
+    @ApiStatus.Experimental
+    static <SENDER, T> Parser<SENDER, T> of(BiFunction<Invocation<SENDER>, String, ParseResult<T>> parser) {
+        return new ArgumentResolver<SENDER, T>() {
+            @Override
+            protected ParseResult<T> parse(Invocation<SENDER> invocation, Argument<T> context, String argument) {
+                return parser.apply(invocation, argument);
+            }
+        };
+    }
+
 }

litecommands-core/src/dev/rollczi/litecommands/argument/resolver/collector/AbstractCollectorArgumentResolver.java

@@ -78,7 +78,8 @@ private <E> boolean match0(Invocation<SENDER> invocation, Argument<COLLECTION> c
         }
 
         TypeToken<E> elementType = this.getElementType(collectionArgumentContainer);
-        Argument<E> argument = collectionArgument.child(elementType);
+        Argument<E> argument = collectionArgument.child(elementType)
+            .withoutProfile(VarargsProfile.NAMESPACE);
         Parser<SENDER, E> parser = parserRegistry.getParser(argument);
         Range range = parser.getRange(argument);
 
@@ -100,7 +101,8 @@ private <E> boolean match0(Invocation<SENDER> invocation, Argument<COLLECTION> c
     }
 
     private <E> ParseResult<List<E>> parseToList(TypeToken<E> componentType, RawInput rawInput, Argument<COLLECTION> collectionArgument, VarargsProfile collectorArgumentHolder, Invocation<SENDER> invocation) {
-        Argument<E> argument = collectionArgument.child(componentType);
+        Argument<E> argument = collectionArgument.child(componentType)
+            .withoutProfile(VarargsProfile.NAMESPACE);
 
         Parser<SENDER, E> parser = parserRegistry.getParser(argument);
 
@@ -214,7 +216,8 @@ public SuggestionResult suggest(Invocation<SENDER> invocation, Argument<COLLECTI
     }
 
     private <T> SuggestionResult suggest(TypeToken<T> componentType, SuggestionContext context, Argument<COLLECTION> collectionArgument, VarargsProfile varargsProfile, Invocation<SENDER> invocation) {
-        Argument<T> argument = collectionArgument.child(componentType);
+        Argument<T> argument = collectionArgument.child(componentType)
+            .withoutProfile(VarargsProfile.NAMESPACE);
 
         Parser<SENDER, T> parser = parserRegistry.getParser(argument);
         Suggester<SENDER, T> suggester = suggesterRegistry.getSuggester(componentType.getRawType(), argument.getKey());

litecommands-core/src/dev/rollczi/litecommands/argument/resolver/nullable/NullableArgumentResolver.java

@@ -4,6 +4,7 @@
 import dev.rollczi.litecommands.argument.parser.ParseResult;
 import dev.rollczi.litecommands.argument.parser.Parser;
 import dev.rollczi.litecommands.argument.parser.ParserRegistry;
+import dev.rollczi.litecommands.argument.profile.ProfileNamespaces;
 import dev.rollczi.litecommands.argument.profile.ProfiledMultipleArgumentResolver;
 import dev.rollczi.litecommands.argument.suggester.Suggester;
 import dev.rollczi.litecommands.argument.suggester.SuggesterRegistry;
@@ -28,13 +29,11 @@ public NullableArgumentResolver(ParserRegistry<SENDER> parserRegistry, Suggester
 
     @Override
     protected ParseResult<Object> parse(Invocation<SENDER> invocation, Argument<Object> argument, RawInput rawInput, NullableProfile unused) {
-        TypeToken<Object> optionalType = argument.getType();
-
-        return parseValue(optionalType, invocation, argument, rawInput);
+        return parseValue(invocation, argument, rawInput);
     }
 
-    private <E> ParseResult<E> parseValue(TypeToken<E> type, Invocation<SENDER> invocation, Argument<Object> optionalArgument, RawInput input) {
-        Argument<E> argument = Argument.of(optionalArgument.getName(), type);
+    private <E> ParseResult<E> parseValue(Invocation<SENDER> invocation, Argument<E> optionalArgument, RawInput input) {
+        Argument<E> argument = optionalArgument.withoutProfile(ProfileNamespaces.NULLABLE);
         Parser<SENDER, E> parser = parserRegistry.getParser(argument);
         ParseResult<E> parseResult = parser.parse(invocation, argument, input);
 
@@ -55,7 +54,15 @@ protected SuggestionResult suggest(Invocation<SENDER> invocation, Argument<Objec
 
     @Override
     protected Range getRange(Argument<Object> argument, NullableProfile unused) {
-        return Range.range(0, 1);
+        return getRangeTyped(argument);
+    }
+
+    private <T> Range getRangeTyped(Argument<T> optionalArgument) {
+        Argument<T> argument = optionalArgument.withoutProfile(ProfileNamespaces.NULLABLE);
+        Parser<SENDER, T> parser = parserRegistry.getParser(argument);
+        Range range = parser.getRange(argument);
+
+        return Range.range(0, range.getMax());
     }
 
 }

litecommands-core/src/dev/rollczi/litecommands/argument/resolver/optional/OptionalArgumentResolver.java

@@ -35,7 +35,7 @@ public ParseResult<Optional> parse(Invocation<SENDER> invocation, Argument<Optio
 
     @SuppressWarnings("unchecked")
     private <E> ParseResult<Optional> parseValue(TypeToken<E> type, Invocation<SENDER> invocation, Argument<Optional> optionalArgument, RawInput input, ParserChainAccessor<SENDER> chainAccessor) {
-        Argument<E> argument = Argument.of(optionalArgument.getName(), type);
+        Argument<E> argument = optionalArgument.child(type);
         ParseResult parseResult = chainAccessor.parse(invocation, argument.child(type), input);
 
         return parseResult
@@ -65,7 +65,7 @@ public SuggestionResult suggest(Invocation<SENDER> invocation, Argument<Optional
         TypeToken<Optional> optionalType = argument.getType();
         TypeToken<?> parameterized = optionalType.getParameterized();
 
-        return chainAccessor.suggest(invocation, Argument.of(argument.getName(), parameterized), context);
+        return chainAccessor.suggest(invocation, argument.child(parameterized), context);
     }
 
 }

litecommands-core/src/dev/rollczi/litecommands/input/raw/RawInputAnalyzer.java

@@ -40,9 +40,9 @@ public boolean hasNextRoute() {
 
     public <SENDER, T> Context<SENDER, T> toContext(
         Argument<T> argument,
-        Parser<SENDER, T> parserSet
+        Parser<SENDER, T> parser
     ) {
-        return new Context<>(argument, parserSet);
+        return new Context<>(argument, parser);
     }
 
     public String showNextRoute() {

litecommands-core/src/dev/rollczi/litecommands/reflect/IterableSuperClassResolver.java

@@ -25,7 +25,7 @@ private class TypeIterator implements Iterator<Class<?>> {
 
         private Class<?> next;
         private final Queue<Class<?>> interfaces = new LinkedList<>();
-        private final Set<Class<?>> visitedInterfaces= new HashSet<>();
+        private final Set<Class<?>> visitedInterfaces = new HashSet<>();
 
         private TypeIterator() {
             this.next = baseType;
@@ -39,10 +39,10 @@ public boolean hasNext() {
 
         @Override
         public Class<?> next() {
-            Class<?> next = this.next;
+            Class<?> nextToReturn = this.next;
             this.next = null;
 
-            if (next == null) {
+            if (nextToReturn == null) {
                 return null;
             }
 
@@ -57,18 +57,22 @@ public Class<?> next() {
                 interfaces.addAll(ReflectIndex.getInterfaces(nextInterface));
 
                 this.next = nextInterface;
-                return next;
+                return nextToReturn;
             }
 
-            Class<?> superclass = next.getSuperclass();
+            Class<?> superclass = nextToReturn.getSuperclass();
 
             if (superclass != null) {
                 this.next = superclass;
                 interfaces.addAll(ReflectIndex.getInterfaces(superclass));
-                return next;
+                return nextToReturn;
             }
 
-            return next;
+            if (this.next == null && nextToReturn != Object.class) {
+                this.next = Object.class;
+            }
+
+            return nextToReturn;
         }
 
     }

litecommands-core/test/dev/rollczi/litecommands/reflect/type/IterableSuperClassResolverTest.java

@@ -35,7 +35,8 @@ void test() {
                 Parser.class,
                 Matcher.class,
                 Suggester.class,
-                Rangeable.class
+                Rangeable.class,
+                Object.class
             );
     }