Added benchmarks for simple & redirect command execution

src/test/java/com/mojang/brigadier/benchmarks/RedirectedCommand.java

@@ -0,0 +1,44 @@
+package com.mojang.brigadier.benchmarks;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.ParseResults;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+
+import java.util.concurrent.TimeUnit;
+
+import static com.mojang.brigadier.builder.LiteralArgumentBuilder.literal;
+
+@State(Scope.Benchmark)
+public class RedirectedCommand {
+    private CommandDispatcher<Object> dispatcher;
+    private ParseResults<Object> parse;
+
+    public static void main(final String[] args) throws CommandSyntaxException {
+        final RedirectedCommand command = new RedirectedCommand();
+        command.setup();
+        command.execute();
+    }
+
+    @Setup
+    public void setup() {
+        dispatcher = new CommandDispatcher<>();
+        dispatcher.register(literal("command").executes(c -> 0));
+        dispatcher.register(literal("redirect").redirect(dispatcher.getRoot()));
+        parse = dispatcher.parse("redirect command", new Object());
+    }
+
+    @Benchmark
+    @BenchmarkMode(Mode.AverageTime)
+    @OutputTimeUnit(TimeUnit.NANOSECONDS)
+    public void execute() throws CommandSyntaxException {
+        dispatcher.execute(parse);
+    }
+}

src/test/java/com/mojang/brigadier/benchmarks/SimpleCommand.java

@@ -0,0 +1,36 @@
+package com.mojang.brigadier.benchmarks;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.ParseResults;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+
+import java.util.concurrent.TimeUnit;
+
+import static com.mojang.brigadier.builder.LiteralArgumentBuilder.literal;
+
+@State(Scope.Benchmark)
+public class SimpleCommand {
+    private CommandDispatcher<Object> dispatcher;
+    private ParseResults<Object> parse;
+
+    @Setup
+    public void setup() {
+        dispatcher = new CommandDispatcher<>();
+        dispatcher.register(literal("command").executes(c -> 0));
+        parse = dispatcher.parse("command", new Object());
+    }
+
+    @Benchmark
+    @BenchmarkMode(Mode.AverageTime)
+    @OutputTimeUnit(TimeUnit.NANOSECONDS)
+    public void execute() throws CommandSyntaxException {
+        dispatcher.execute(parse);
+    }
+}