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PaperMC/patches/api/Fix-issues-with-recipe-API.patch
Janet Blackquill 5f317598d4 Ensure MaterialChoice materials are items (#11325)
2024-08-25 13:20:10 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 12 May 2024 10:42:42 -0700
Subject: [PATCH] Fix issues with recipe API
Improves the validation when creating recipes
and RecipeChoices to closer match what is
allowed by the Codecs and StreamCodecs internally.
Adds RecipeChoice#empty which is allowed in specific
recipes and ingredient slots.
Also fixes some issues regarding mutability of both ItemStack
and implementations of RecipeChoice.
Also adds some validation regarding Materials passed to RecipeChoice
being items.
diff --git a/src/main/java/org/bukkit/inventory/CookingRecipe.java b/src/main/java/org/bukkit/inventory/CookingRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/CookingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/CookingRecipe.java
@@ -0,0 +0,0 @@ public abstract class CookingRecipe<T extends CookingRecipe> implements Recipe,
* @param cookingTime The cooking time (in ticks)
*/
public CookingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice input, float experience, int cookingTime) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.key = key;
this.output = new ItemStack(result);
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
this.experience = experience;
this.cookingTime = cookingTime;
}
@@ -0,0 +0,0 @@ public abstract class CookingRecipe<T extends CookingRecipe> implements Recipe,
*/
@NotNull
public T setInputChoice(@NotNull RecipeChoice input) {
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
return (T) this;
}
diff --git a/src/main/java/org/bukkit/inventory/CraftingRecipe.java b/src/main/java/org/bukkit/inventory/CraftingRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/CraftingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/CraftingRecipe.java
@@ -0,0 +0,0 @@ public abstract class CraftingRecipe implements Recipe, Keyed {
@ApiStatus.Internal
@NotNull
protected static ItemStack checkResult(@NotNull ItemStack result) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
return result;
}
}
diff --git a/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java b/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
--- /dev/null
+++ b/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java
@@ -0,0 +0,0 @@
+package org.bukkit.inventory;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jetbrains.annotations.ApiStatus;
+
+@ApiStatus.Internal
+@DefaultQualifier(NonNull.class)
+record EmptyRecipeChoice() implements RecipeChoice {
+
+ static final RecipeChoice INSTANCE = new EmptyRecipeChoice();
+ @Override
+ public ItemStack getItemStack() {
+ throw new UnsupportedOperationException("This is an empty RecipeChoice");
+ }
+
+ @SuppressWarnings("MethodDoesntCallSuperMethod")
+ @Override
+ public RecipeChoice clone() {
+ return this;
+ }
+
+ @Override
+ public boolean test(final ItemStack itemStack) {
+ return false;
+ }
+
+ @Override
+ public RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (allowEmptyRecipes) return this;
+ throw new IllegalArgumentException("empty RecipeChoice isn't allowed here");
+ }
+}
diff --git a/src/main/java/org/bukkit/inventory/MerchantRecipe.java b/src/main/java/org/bukkit/inventory/MerchantRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/MerchantRecipe.java
+++ b/src/main/java/org/bukkit/inventory/MerchantRecipe.java
@@ -0,0 +0,0 @@ public class MerchantRecipe implements Recipe {
this(result, uses, maxUses, experienceReward, villagerExperience, priceMultiplier, 0, 0, ignoreDiscounts);
}
public MerchantRecipe(@NotNull ItemStack result, int uses, int maxUses, boolean experienceReward, int villagerExperience, float priceMultiplier, int demand, int specialPrice, boolean ignoreDiscounts) {
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.ignoreDiscounts = ignoreDiscounts;
// Paper end
this.result = result;
@@ -0,0 +0,0 @@ public class MerchantRecipe implements Recipe {
@NotNull
@Override
public ItemStack getResult() {
- return result;
+ return result.clone(); // Paper
}
public void addIngredient(@NotNull ItemStack item) {
Preconditions.checkState(ingredients.size() < 2, "MerchantRecipe can only have maximum 2 ingredients");
+ Preconditions.checkArgument(!item.isEmpty(), "Recipe cannot have an empty itemstack ingredient."); // Paper
ingredients.add(item.clone());
}
@@ -0,0 +0,0 @@ public class MerchantRecipe implements Recipe {
Preconditions.checkState(ingredients.size() <= 2, "MerchantRecipe can only have maximum 2 ingredients");
this.ingredients = new ArrayList<ItemStack>();
for (ItemStack item : ingredients) {
+ Preconditions.checkArgument(!item.isEmpty(), "Recipe cannot have an empty itemstack ingredient."); // Paper
this.ingredients.add(item.clone());
}
}
diff --git a/src/main/java/org/bukkit/inventory/RecipeChoice.java b/src/main/java/org/bukkit/inventory/RecipeChoice.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/RecipeChoice.java
+++ b/src/main/java/org/bukkit/inventory/RecipeChoice.java
@@ -0,0 +0,0 @@ import org.jetbrains.annotations.NotNull;
*/
public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
+ // Paper start - add "empty" choice
+ /**
+ * An "empty" recipe choice. Only valid as a recipe choice in
+ * specific places. Check the javadocs of a method before using it
+ * to be sure it's valid for that recipe and ingredient type.
+ *
+ * @return the empty recipe choice
+ */
+ static @NotNull RecipeChoice empty() {
+ return EmptyRecipeChoice.INSTANCE;
+ }
+ // Paper end
+
/**
* Gets a single item stack representative of this stack choice.
*
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
@Override
boolean test(@NotNull ItemStack itemStack);
+ // Paper start - check valid ingredients
+ @org.jetbrains.annotations.ApiStatus.Internal
+ default @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ return this;
+ }
+ // Paper end - check valid ingredients
+
/**
* Represents a choice of multiple matching Materials.
*/
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
* @param choices the tag
*/
public MaterialChoice(@NotNull Tag<Material> choices) {
- Preconditions.checkArgument(choices != null, "choices");
- this.choices = new ArrayList<>(choices.getValues());
+ this(new ArrayList<>(java.util.Objects.requireNonNull(choices, "Cannot create a material choice with null tag").getValues())); // Paper - delegate to list ctor to make sure all checks are called
}
public MaterialChoice(@NotNull List<Material> choices) {
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
}
Preconditions.checkArgument(!choice.isAir(), "Cannot have empty/air choice");
+ Preconditions.checkArgument(choice.isItem(), "Cannot have non-item choice %s", choice); // Paper - validate material choice input to items
this.choices.add(choice);
}
}
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public String toString() {
return "MaterialChoice{" + "choices=" + choices + '}';
}
+
+ // Paper start - check valid ingredients
+ @Override
+ public @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (this.choices.stream().anyMatch(Material::isAir)) {
+ throw new IllegalArgumentException("RecipeChoice.MaterialChoice cannot contain air");
+ }
+ return this;
+ }
+ // Paper end - check valid ingredients
}
/**
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public ExactChoice clone() {
try {
ExactChoice clone = (ExactChoice) super.clone();
- clone.choices = new ArrayList<>(choices);
+ // Paper start - properly clone
+ clone.choices = new ArrayList<>(this.choices.size());
+ for (ItemStack choice : this.choices) {
+ clone.choices.add(choice.clone());
+ }
+ // Paper end - properly clone
return clone;
} catch (CloneNotSupportedException ex) {
throw new AssertionError(ex);
@@ -0,0 +0,0 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public String toString() {
return "ExactChoice{" + "choices=" + choices + '}';
}
+
+ // Paper start - check valid ingredients
+ @Override
+ public @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (this.choices.stream().anyMatch(s -> s.getType().isAir())) {
+ throw new IllegalArgumentException("RecipeChoice.ExactChoice cannot contain air");
+ }
+ return this;
+ }
+ // Paper end - check valid ingredients
}
}
diff --git a/src/main/java/org/bukkit/inventory/ShapedRecipe.java b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/ShapedRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
@@ -0,0 +0,0 @@ public class ShapedRecipe extends CraftingRecipe {
Preconditions.checkArgument(key != ' ', "Space in recipe shape must represent no ingredient");
Preconditions.checkArgument(ingredients.containsKey(key), "Symbol does not appear in the shape:", key);
- ingredients.put(key, ingredient);
+ ingredients.put(key, ingredient.validate(false).clone()); // Paper
return this;
}
// Paper start
@NotNull
public ShapedRecipe setIngredient(char key, @NotNull ItemStack item) {
- return setIngredient(key, new RecipeChoice.ExactChoice(item));
+ Preconditions.checkArgument(!item.getType().isAir(), "Item cannot be air"); // Paper
+ return setIngredient(key, new RecipeChoice.ExactChoice(item.clone())); // Paper
}
// Paper end
diff --git a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
@@ -0,0 +0,0 @@ public class ShapelessRecipe extends CraftingRecipe {
public ShapelessRecipe addIngredient(@NotNull RecipeChoice ingredient) {
Preconditions.checkArgument(ingredients.size() + 1 <= 9, "Shapeless recipes cannot have more than 9 ingredients");
- ingredients.add(ingredient);
+ ingredients.add(ingredient.validate(false).clone()); // Paper
return this;
}
@@ -0,0 +0,0 @@ public class ShapelessRecipe extends CraftingRecipe {
@NotNull
public ShapelessRecipe addIngredient(int count, @NotNull ItemStack item) {
Preconditions.checkArgument(ingredients.size() + count <= 9, "Shapeless recipes cannot have more than 9 ingredients");
+ Preconditions.checkArgument(!item.getType().isAir(), "Item cannot be air"); // Paper
+ item = item.clone(); // Paper
while (count-- > 0) {
ingredients.add(new RecipeChoice.ExactChoice(item));
}
diff --git a/src/main/java/org/bukkit/inventory/SmithingRecipe.java b/src/main/java/org/bukkit/inventory/SmithingRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/SmithingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingRecipe.java
@@ -0,0 +0,0 @@ public class SmithingRecipe implements Recipe, Keyed {
*/
@Deprecated
public SmithingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) {
+ com.google.common.base.Preconditions.checkArgument(!result.isEmpty() || this instanceof ComplexRecipe, "Recipe cannot have an empty result."); // Paper
this.copyDataComponents = copyDataComponents;
// Paper end
this.key = key;
this.result = result;
- this.base = base;
- this.addition = addition;
+ this.base = base.validate(true).clone(); // Paper
+ this.addition = addition.validate(true).clone(); // Paper
}
/**
diff --git a/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java b/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
@@ -0,0 +0,0 @@ public class SmithingTransformRecipe extends SmithingRecipe {
*
* @param key The unique recipe key
* @param result The item you want the recipe to create.
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
*/
public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition) {
super(key, result, base, addition);
- this.template = template;
+ this.template = template.validate(true).clone(); // Paper
}
// Paper start
/**
@@ -0,0 +0,0 @@ public class SmithingTransformRecipe extends SmithingRecipe {
*
* @param key The unique recipe key
* @param result The item you want the recipe to create.
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
* @param copyDataComponents whether to copy the data components from the input base item to the output
*/
public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) {
super(key, result, base, addition, copyDataComponents);
- this.template = template;
+ this.template = template.validate(true).clone();
}
// Paper end
diff --git a/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java b/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
@@ -0,0 +0,0 @@ public class SmithingTrimRecipe extends SmithingRecipe implements ComplexRecipe
* Create a smithing recipe to produce the specified result ItemStack.
*
* @param key The unique recipe key
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
*/
public SmithingTrimRecipe(@NotNull NamespacedKey key, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition) {
super(key, new ItemStack(Material.AIR), base, addition);
- this.template = template;
+ this.template = template.validate(true).clone(); // Paper
}
// Paper start
/**
* Create a smithing recipe to produce the specified result ItemStack.
*
* @param key The unique recipe key
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item. ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
* @param copyDataComponents whether to copy the data components from the input base item to the output
*/
public SmithingTrimRecipe(@NotNull NamespacedKey key, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) {
super(key, new ItemStack(Material.AIR), base, addition, copyDataComponents);
- this.template = template;
+ this.template = template.validate(true).clone(); // Paper
}
// Paper end
diff --git a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
@@ -0,0 +0,0 @@ public class StonecuttingRecipe implements Recipe, Keyed {
* @param input The input choices.
*/
public StonecuttingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice input) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.key = key;
this.output = new ItemStack(result);
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
}
/**
@@ -0,0 +0,0 @@ public class StonecuttingRecipe implements Recipe, Keyed {
*/
@NotNull
public StonecuttingRecipe setInputChoice(@NotNull RecipeChoice input) {
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
return (StonecuttingRecipe) this;
}
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