Optimize by moving away from Optional and Stream in hot code paths

CommonApi/src/main/java/mezz/jei/api/gui/ingredient/IRecipeSlotView.java

@@ -11,8 +11,11 @@
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.item.ItemStack;
 import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Unmodifiable;
 
 import java.util.Collection;
+import java.util.List;
 import java.util.Optional;
 import java.util.stream.Stream;
 
@@ -30,7 +33,7 @@
 @ApiStatus.NonExtendable
 public interface IRecipeSlotView {
 	/**
-	 * All ingredient variations that can be shown.
+	 * All ingredient variations that can be shown, ignoring focus and visibility.
 	 *
 	 * @see #getItemStacks() to limit to only ItemStack ingredients.
 	 * @see #getIngredients(IIngredientType) to limit to one type of ingredient.
@@ -39,6 +42,15 @@ public interface IRecipeSlotView {
 	 */
 	Stream<ITypedIngredient<?>> getAllIngredients();
 
+	/**
+	 * All ingredients, ignoring focus and visibility
+	 * null ingredients represent a "blank" drawn ingredient in the rotation.
+	 *
+	 * @since 19.19.5
+	 */
+	@Unmodifiable
+	List<@Nullable ITypedIngredient<?>> getAllIngredientsList();
+
 	/**
 	 * The ingredient variation that is shown at this moment.
 	 * For ingredients that rotate through several values, this will change over time.

CommonApi/src/main/java/mezz/jei/api/ingredients/IIngredientHelper.java

@@ -80,6 +80,16 @@ default Object getGroupingUid(V ingredient) {
 		return getWildcardId(ingredient);
 	}
 
+	/**
+	 * Unique ID for use in grouping ingredients together.
+	 * This is used for hiding groups of ingredients together at once.
+	 *
+	 * @since 19.19.5
+	 */
+	default Object getGroupingUid(ITypedIngredient<V> typedIngredient) {
+		return getGroupingUid(typedIngredient.getIngredient());
+	}
+
 	/**
 	 * Return true if the given ingredient can have subtypes.
 	 * For example in the vanilla game an enchanted book may have subtypes, but an apple does not.
@@ -227,6 +237,17 @@ default boolean isHiddenFromRecipeViewersByTags(V ingredient) {
 			.anyMatch(Tags.HIDDEN_FROM_RECIPE_VIEWERS::equals);
 	}
 
+	/**
+	 * Return true if the given ingredient is hidden from recipe viewers by its tags.
+	 *
+	 * @see Tags#HIDDEN_FROM_RECIPE_VIEWERS
+	 *
+	 * @since 19.19.5
+	 */
+	default boolean isHiddenFromRecipeViewersByTags(ITypedIngredient<V> ingredient) {
+		return isHiddenFromRecipeViewersByTags(ingredient.getIngredient());
+	}
+
 	/**
 	 * Get information for error messages involving this ingredient.
 	 * Be extremely careful not to crash here, get as much useful info as possible.

CommonApi/src/main/java/mezz/jei/api/ingredients/IIngredientType.java

@@ -44,4 +44,18 @@ default Optional<T> castIngredient(@Nullable Object ingredient) {
 		}
 		return Optional.empty();
 	}
+
+	/**
+	 * Helper to cast an unknown ingredient to this type if it matches.
+	 *
+	 * @since 19.19.5
+	 */
+	@Nullable
+	default T getCastIngredient(@Nullable Object ingredient) {
+		Class<? extends T> ingredientClass = getIngredientClass();
+		if (ingredientClass.isInstance(ingredient)) {
+			return ingredientClass.cast(ingredient);
+		}
+		return null;
+	}
 }

CommonApi/src/main/java/mezz/jei/api/ingredients/ITypedIngredient.java

@@ -4,6 +4,7 @@
 import mezz.jei.api.runtime.IIngredientManager;
 import net.minecraft.world.item.ItemStack;
 import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.Optional;
 
@@ -42,6 +43,17 @@ default <V> Optional<V> getIngredient(IIngredientType<V> ingredientType) {
 		return ingredientType.castIngredient(getIngredient());
 	}
 
+	/**
+	 * @return the ingredient wrapped by this instance, only if it matches the given type.
+	 * This is useful when handling a wildcard generic instance of `ITypedIngredient<?>`.
+	 *
+	 * @since 19.19.5
+	 */
+	@Nullable
+	default <V> V getCastIngredient(IIngredientType<V> ingredientType) {
+		return ingredientType.getCastIngredient(getIngredient());
+	}
+
 	/**
 	 * @return the ingredient's base ingredient. (For example, an ItemStack's base ingredient is the Item)
 	 *

CommonApi/src/main/java/mezz/jei/api/runtime/IIngredientManager.java

@@ -15,6 +15,7 @@
 import mezz.jei.api.registration.IIngredientAliasRegistration;
 import net.minecraft.client.renderer.Rect2i;
 import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.Unmodifiable;
 
 import java.util.Collection;
@@ -101,6 +102,15 @@ default Collection<ItemStack> getAllItemStacks() {
 	 */
 	<V> void removeIngredientsAtRuntime(IIngredientType<V> ingredientType, Collection<V> ingredients);
 
+	/**
+	 * Helper method to get ingredient type for an ingredient.
+	 * Returns null if there is no known type for the given ingredient.
+	 *
+	 * @since 19.19.5
+	 */
+	@Nullable
+	<V> IIngredientType<V> getIngredientType(V ingredient);
+
 	/**
 	 * Helper method to get ingredient type for an ingredient.
 	 * Returns {@link Optional#empty()} if there is no known type for the given ingredient.

Gui/src/main/java/mezz/jei/gui/bookmarks/RecipeBookmark.java

@@ -10,6 +10,7 @@
 import mezz.jei.gui.overlay.elements.IElement;
 import mezz.jei.gui.overlay.elements.RecipeBookmarkElement;
 import net.minecraft.resources.ResourceLocation;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.Objects;
 import java.util.Optional;
@@ -36,22 +37,16 @@ public class RecipeBookmark<R, I> implements IBookmark {
 
 		IRecipeSlotsView recipeSlotsView = recipeLayoutDrawable.getRecipeSlotsView();
 		{
-			Optional<ITypedIngredient<?>> outputOptional = recipeSlotsView.getSlotViews(RecipeIngredientRole.OUTPUT).stream()
-				.flatMap(IRecipeSlotView::getAllIngredients)
-				.findFirst();
-			if (outputOptional.isPresent()) {
-				ITypedIngredient<?> output = outputOptional.get();
+			ITypedIngredient<?> output = findFirst(recipeSlotsView, RecipeIngredientRole.OUTPUT);
+			if (output != null) {
 				output = ingredientManager.normalizeTypedIngredient(output);
 				return Optional.of(new RecipeBookmark<>(recipeCategory, recipe, recipeUid, output, true));
 			}
 		}
 
 		{
-			Optional<ITypedIngredient<?>> inputOptional = recipeSlotsView.getSlotViews(RecipeIngredientRole.INPUT).stream()
-				.flatMap(IRecipeSlotView::getAllIngredients)
-				.findFirst();
-			if (inputOptional.isPresent()) {
-				ITypedIngredient<?> input = inputOptional.get();
+			ITypedIngredient<?> input = findFirst(recipeSlotsView, RecipeIngredientRole.INPUT);
+			if (input != null) {
 				input = ingredientManager.normalizeTypedIngredient(input);
 				return Optional.of(new RecipeBookmark<>(recipeCategory, recipe, recipeUid, input, false));
 			}
@@ -60,6 +55,21 @@ public class RecipeBookmark<R, I> implements IBookmark {
 		return Optional.empty();
 	}
 
+	@Nullable
+	private static ITypedIngredient<?> findFirst(IRecipeSlotsView slotsView, RecipeIngredientRole role) {
+		for (IRecipeSlotView slotView : slotsView.getSlotViews()) {
+			if (slotView.getRole() != role) {
+				continue;
+			}
+			for (ITypedIngredient<?> ingredient : slotView.getAllIngredientsList()) {
+				if (ingredient != null) {
+					return ingredient;
+				}
+			}
+		}
+		return null;
+	}
+
 	public RecipeBookmark(
 		IRecipeCategory<R> recipeCategory,
 		R recipe,

Gui/src/main/java/mezz/jei/gui/recipes/RecipeSortUtil.java

@@ -2,6 +2,7 @@
 
 import mezz.jei.api.gui.IRecipeLayoutDrawable;
 import mezz.jei.api.gui.ingredient.IRecipeSlotView;
+import mezz.jei.api.gui.ingredient.IRecipeSlotsView;
 import mezz.jei.api.recipe.RecipeIngredientRole;
 import mezz.jei.api.recipe.category.IRecipeCategory;
 import mezz.jei.api.recipe.transfer.IRecipeTransferManager;
@@ -48,16 +49,15 @@ public static Comparator<RecipeLayoutWithButtons<?>> getCraftableComparator() {
 	private static Comparator<RecipeLayoutWithButtons<?>> createCraftableComparator() {
 		return Comparator.comparingInt(r -> {
 			IRecipeLayoutDrawable<?> recipeLayout = r.recipeLayout();
-			List<IRecipeSlotView> inputSlotViews = recipeLayout.getRecipeSlotsView()
-				.getSlotViews(RecipeIngredientRole.INPUT);
 
 			RecipeTransferButton transferButton = r.transferButton();
 			int missingCount = transferButton.getMissingCountHint();
 			if (missingCount == -1) {
 				return 0;
 			}
 
-			int ingredientCount = ingredientCount(inputSlotViews);
+			IRecipeSlotsView recipeSlotsView = recipeLayout.getRecipeSlotsView();
+			int ingredientCount = ingredientCount(recipeSlotsView);
 			if (ingredientCount == 0) {
 				return 0;
 			}
@@ -68,10 +68,10 @@ private static Comparator<RecipeLayoutWithButtons<?>> createCraftableComparator(
 		});
 	}
 
-	private static int ingredientCount(List<IRecipeSlotView> inputSlotViews) {
+	private static int ingredientCount(IRecipeSlotsView recipeSlotsView) {
 		int count = 0;
-		for (IRecipeSlotView i : inputSlotViews) {
-			if (!i.isEmpty()) {
+		for (IRecipeSlotView i : recipeSlotsView.getSlotViews()) {
+			if (i.getRole() == RecipeIngredientRole.INPUT && !i.isEmpty()) {
 				count++;
 			}
 		}

Library/src/main/java/mezz/jei/library/focus/Focus.java

@@ -8,6 +8,7 @@
 import mezz.jei.api.runtime.IIngredientManager;
 import mezz.jei.common.util.ErrorUtil;
 import mezz.jei.library.ingredients.TypedIngredient;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 import java.util.Optional;
@@ -69,21 +70,20 @@ public static <V> Focus<V> checkOne(IFocus<V> focus, IIngredientManager ingredie
 	}
 
 	public static <V> Focus<V> createFromApi(IIngredientManager ingredientManager, RecipeIngredientRole role, IIngredientType<V> ingredientType, V value) {
-		Optional<ITypedIngredient<V>> typedIngredient = TypedIngredient.createAndFilterInvalid(ingredientManager, ingredientType, value, false)
-			.flatMap(i -> TypedIngredient.deepCopy(ingredientManager, i));
+		@Nullable ITypedIngredient<V> typedIngredient = TypedIngredient.createAndFilterInvalid(ingredientManager, ingredientType, value, false);
 
-		if (typedIngredient.isEmpty()) {
+		if (typedIngredient == null) {
 			throw new IllegalArgumentException("Focus value is invalid: " + ErrorUtil.getIngredientInfo(value, ingredientType, ingredientManager));
 		}
-		return new Focus<>(role, typedIngredient.get());
+		return new Focus<>(role, typedIngredient);
 	}
 
 	public static <V> Focus<V> createFromApi(IIngredientManager ingredientManager, RecipeIngredientRole role, ITypedIngredient<V> typedIngredient) {
-		Optional<ITypedIngredient<V>> typedIngredientCopy = TypedIngredient.deepCopy(ingredientManager, typedIngredient);
-		if (typedIngredientCopy.isEmpty()) {
+		@Nullable ITypedIngredient<V> typedIngredientCopy = TypedIngredient.defensivelyCopyTypedIngredientFromApi(ingredientManager, typedIngredient);
+		if (typedIngredientCopy == null) {
 			throw new IllegalArgumentException("Focus value is invalid: " + ErrorUtil.getIngredientInfo(typedIngredient.getIngredient(), typedIngredient.getType(), ingredientManager));
 		}
-		return new Focus<>(role, typedIngredientCopy.get());
+		return new Focus<>(role, typedIngredientCopy);
 	}
 
 	@Override

Library/src/main/java/mezz/jei/library/gui/helpers/ScreenHelper.java

@@ -6,6 +6,7 @@
 import mezz.jei.api.gui.handlers.IGuiClickableArea;
 import mezz.jei.api.gui.handlers.IGuiProperties;
 import mezz.jei.api.gui.handlers.IScreenHandler;
+import mezz.jei.api.ingredients.ITypedIngredient;
 import mezz.jei.api.runtime.IClickableIngredient;
 import mezz.jei.api.runtime.IIngredientManager;
 import mezz.jei.api.runtime.IScreenHelper;
@@ -21,6 +22,7 @@
 import net.minecraft.client.renderer.Rect2i;
 import net.minecraft.world.inventory.Slot;
 import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -124,17 +126,19 @@ private Stream<IClickableIngredient<?>> getPluginsIngredientUnderMouse(Screen gu
 
 	private Optional<IClickableIngredient<?>> getClickedIngredient(Slot slot, AbstractContainerScreen<?> guiContainer) {
 		ItemStack stack = slot.getItem();
-		return TypedIngredient.createAndFilterInvalid(ingredientManager, VanillaTypes.ITEM_STACK, stack, false)
-			.map(typedIngredient -> {
-				IPlatformScreenHelper screenHelper = Services.PLATFORM.getScreenHelper();
-				ImmutableRect2i slotArea = new ImmutableRect2i(
-					screenHelper.getGuiLeft(guiContainer) + slot.x,
-					screenHelper.getGuiTop(guiContainer) + slot.y,
-					16,
-					16
-				);
-				return new ClickableIngredient<>(typedIngredient, slotArea);
-			});
+		@Nullable ITypedIngredient<ItemStack> typedIngredient = TypedIngredient.createAndFilterInvalid(ingredientManager, VanillaTypes.ITEM_STACK, stack, false);
+		if (typedIngredient == null) {
+			return Optional.empty();
+		}
+		IPlatformScreenHelper screenHelper = Services.PLATFORM.getScreenHelper();
+		ImmutableRect2i slotArea = new ImmutableRect2i(
+			screenHelper.getGuiLeft(guiContainer) + slot.x,
+			screenHelper.getGuiTop(guiContainer) + slot.y,
+			16,
+			16
+		);
+		ClickableIngredient<ItemStack> clickableIngredient = new ClickableIngredient<>(typedIngredient, slotArea);
+		return Optional.of(clickableIngredient);
 	}
 
 	private <T extends AbstractContainerScreen<?>> Stream<IClickableIngredient<?>> getGuiContainerHandlerIngredients(T guiContainer, double mouseX, double mouseY) {

Library/src/main/java/mezz/jei/library/gui/ingredients/CycleTicker.java

@@ -1,9 +1,9 @@
 package mezz.jei.library.gui.ingredients;
 
 import net.minecraft.client.gui.screens.Screen;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
-import java.util.Optional;
 
 public class CycleTicker implements ICycler {
 	private static final int MAX_INDEX = 100_000;
@@ -22,9 +22,10 @@ private CycleTicker(int cycleOffset) {
 	}
 
 	@Override
-	public <T> Optional<T> getCycled(List<Optional<T>> list) {
+	@Nullable
+	public <T> T getCycled(List<@Nullable T> list) {
 		if (list.isEmpty()) {
-			return Optional.empty();
+			return null;
 		}
 		int index = this.index % list.size();
 		return list.get(index);

Library/src/main/java/mezz/jei/library/gui/ingredients/CycleTimer.java

@@ -1,9 +1,9 @@
 package mezz.jei.library.gui.ingredients;
 
 import net.minecraft.client.gui.screens.Screen;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
-import java.util.Optional;
 
 public class CycleTimer implements ICycler {
 	private static final CycleTimer ZERO_OFFSET = new CycleTimer(0);
@@ -38,9 +38,10 @@ private static int calculateIndex(long now, int cycleOffset) {
 	}
 
 	@Override
-	public <T> Optional<T> getCycled(List<Optional<T>> list) {
+	@Nullable
+	public <T> T getCycled(List<@Nullable T> list) {
 		if (list.isEmpty()) {
-			return Optional.empty();
+			return null;
 		}
 		if (!Screen.hasShiftDown()) {
 			long now = System.currentTimeMillis();

Library/src/main/java/mezz/jei/library/gui/ingredients/ICycler.java

@@ -1,8 +1,10 @@
 package mezz.jei.library.gui.ingredients;
 
+import org.jetbrains.annotations.Nullable;
+
 import java.util.List;
-import java.util.Optional;
 
 public interface ICycler {
-	<T> Optional<T> getCycled(List<Optional<T>> list);
+	@Nullable
+	<T> T getCycled(List<@Nullable T> list);
 }