Optimize Util#sequence

arclight-common/src/main/java/io/izzel/arclight/common/mixin/optimization/general/UtilMixin_Optimize.java

@@ -0,0 +1,29 @@
+package io.izzel.arclight.common.mixin.optimization.general;
+
+import net.minecraft.Util;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+@Mixin(Util.class)
+public class UtilMixin_Optimize {
+
+    /**
+     * @author IzzelAliz
+     * @reason original method allocates tons of garbage
+     */
+    @Overwrite
+    public static <V> CompletableFuture<List<V>> sequence(List<? extends CompletableFuture<? extends V>> futures) {
+        return CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
+            .thenApply(v -> {
+                var list = new ArrayList<V>(futures.size());
+                for (CompletableFuture<? extends V> future : futures) {
+                    list.add(future.join());
+                }
+                return list;
+            });
+    }
+}

arclight-common/src/main/resources/mixins.arclight.impl.forge.optimization.json

@@ -8,6 +8,7 @@
     "ClassInheritanceMultiMapMixin",
     "EntityDataManagerMixin_Optimize",
     "MobMixin_Optimization",
+    "UtilMixin_Optimize",
     "VoxelShapesMixin",
     "activationrange.ActivationRangeMixin",
     "activationrange.EntityMixin_ActivationRange",