From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic Date: Tue, 14 May 2024 11:57:51 -0700 Subject: [PATCH] Proxy ItemStack to CraftItemStack diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java index 9bdba60fa96edbc4be5dcf54a815579db887048b..330e3013eda204aa9b33d5e1c3104e0b595abdbc 100644 --- a/src/main/java/org/bukkit/UnsafeValues.java +++ b/src/main/java/org/bukkit/UnsafeValues.java @@ -285,4 +285,6 @@ public interface UnsafeValues { @NotNull java.util.List computeTooltipLines(@NotNull ItemStack itemStack, @NotNull io.papermc.paper.inventory.tooltip.TooltipContext tooltipContext, @Nullable org.bukkit.entity.Player player); // Paper - expose itemstack tooltip lines io.papermc.paper.registry.tag.@Nullable Tag getTag(io.papermc.paper.registry.tag.@NotNull TagKey tagKey); // Paper - hack to get tags for non-server backed registries + + ItemStack createEmptyStack(); // Paper - proxy ItemStack } diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java index 77edc2e1c5c865db7e101aaa186657ac85edfed9..6fc8bddfcabca8c363e0d9f958f0ce7bc39099f1 100644 --- a/src/main/java/org/bukkit/inventory/ItemStack.java +++ b/src/main/java/org/bukkit/inventory/ItemStack.java @@ -28,10 +28,38 @@ import org.jetbrains.annotations.Nullable; * returns false. */ public class ItemStack implements Cloneable, ConfigurationSerializable, Translatable, net.kyori.adventure.text.event.HoverEventSource, net.kyori.adventure.translation.Translatable { // Paper - private Material type = Material.AIR; - private int amount = 0; + private ItemStack craftDelegate; // Paper - always delegate to server-backed stack private MaterialData data = null; - private ItemMeta meta; + + // Paper start - add static factory methods + /** + * Creates an itemstack with the specified item type and a count of 1. + * + * @param type the item type to use + * @return a new itemstack + * @throws IllegalArgumentException if the Material provided is not an item ({@link Material#isItem()}) + */ + @org.jetbrains.annotations.Contract(value = "_ -> new", pure = true) + public static @NotNull ItemStack of(final @NotNull Material type) { + return of(type, 1); + } + + /** + * Creates an itemstack with the specified item type and count. + * + * @param type the item type to use + * @param amount the count of items in the stack + * @return a new itemstack + * @throws IllegalArgumentException if the Material provided is not an item ({@link Material#isItem()}) + * @throws IllegalArgumentException if the amount is less than 1 + */ + @org.jetbrains.annotations.Contract(value = "_, _ -> new", pure = true) + public static @NotNull ItemStack of(final @NotNull Material type, final int amount) { + Preconditions.checkArgument(type.asItemType() != null, type + " isn't an item"); + Preconditions.checkArgument(amount > 0, "amount must be greater than 0"); + return java.util.Objects.requireNonNull(type.asItemType(), type + " is not an item").createItemStack(amount); // Paper - delegate + } + // Paper end @Utility protected ItemStack() {} @@ -44,7 +72,10 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * {@link Material#isItem()} returns false. * * @param type item material + * @apiNote use {@link #of(Material)} + * @see #of(Material) */ + @org.jetbrains.annotations.ApiStatus.Obsolete(since = "1.21") // Paper public ItemStack(@NotNull final Material type) { this(type, 1); } @@ -58,7 +89,10 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * * @param type item material * @param amount stack size + * @apiNote Use {@link #of(Material, int)} + * @see #of(Material, int) */ + @org.jetbrains.annotations.ApiStatus.Obsolete(since = "1.21") // Paper public ItemStack(@NotNull final Material type, final int amount) { this(type, amount, (short) 0); } @@ -93,8 +127,9 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat type = Bukkit.getUnsafe().fromLegacy(new MaterialData(type, data == null ? (byte) damage : data), true); } } - this.type = type; - this.amount = amount; + // Paper start - create delegate + this.craftDelegate = type == Material.AIR ? ItemStack.empty() : ItemStack.of(type, amount); + // Paper end - create delegate if (damage != 0) { setDurability(damage); } @@ -109,17 +144,16 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @param stack the stack to copy * @throws IllegalArgumentException if the specified stack is null or * returns an item meta not created by the item factory + * @apiNote Use {@link #clone()} + * @see #clone() */ + @org.jetbrains.annotations.ApiStatus.Obsolete(since = "1.21") // Paper public ItemStack(@NotNull final ItemStack stack) throws IllegalArgumentException { Preconditions.checkArgument(stack != null, "Cannot copy null stack"); - this.type = stack.getType(); - this.amount = stack.getAmount(); - if (this.type.isLegacy()) { + this.craftDelegate = stack.clone(); // Paper - delegate + if (stack.getType().isLegacy()) { this.data = stack.getData(); } - if (stack.hasItemMeta()) { - setItemMeta0(stack.getItemMeta(), type); - } } /** @@ -127,10 +161,9 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * * @return Type of the items in this stack */ - @Utility @NotNull public Material getType() { - return type; + return this.craftDelegate.getType(); // Paper - delegate } /** @@ -153,19 +186,10 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * Using this method in ItemStacks passed in events will result in undefined behavior. * @see ItemStack#withType(Material) */ - @Utility @Deprecated // Paper public void setType(@NotNull Material type) { Preconditions.checkArgument(type != null, "Material cannot be null"); - this.type = type; - if (this.meta != null) { - this.meta = Bukkit.getItemFactory().asMetaFor(meta, type); - } - if (type.isLegacy()) { - createData((byte) 0); - } else { - this.data = null; - } + this.craftDelegate.setType(type); // Paper - delegate } // Paper start /** @@ -177,12 +201,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat @NotNull @org.jetbrains.annotations.Contract(value = "_ -> new", pure = true) public ItemStack withType(@NotNull Material type) { - ItemStack itemStack = new ItemStack(type, this.amount); - if (this.hasItemMeta()) { - itemStack.setItemMeta(this.getItemMeta()); - } - - return itemStack; + return this.craftDelegate.withType(type); // Paper - delegate } // Paper end @@ -192,7 +211,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @return Amount of items in this stack */ public int getAmount() { - return amount; + return this.craftDelegate.getAmount(); // Paper - delegate } /** @@ -201,7 +220,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @param amount New amount of items in this stack */ public void setAmount(int amount) { - this.amount = amount; + this.craftDelegate.setAmount(amount); // Paper - delegate } /** @@ -254,11 +273,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat */ @Deprecated public void setDurability(final short durability) { - ItemMeta meta = getItemMeta(); - if (meta != null) { - ((Damageable) meta).setDamage(durability); - setItemMeta(meta); - } + this.craftDelegate.setDurability(durability); // Paper - delegate } /** @@ -269,8 +284,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat */ @Deprecated public short getDurability() { - ItemMeta meta = getItemMeta(); - return (meta == null) ? 0 : (short) ((Damageable) meta).getDamage(); + return this.craftDelegate.getDurability(); // Paper - delegate } /** @@ -282,17 +296,12 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * * @return The maximum you can stack this item to. */ - @Utility public int getMaxStackSize() { - if (meta != null && meta.hasMaxStackSize()) { - return meta.getMaxStackSize(); - } - - return getType().getMaxStackSize(); + return this.craftDelegate.getMaxStackSize(); // Paper - delegate } private void createData(final byte data) { - this.data = type.getNewData(data); + this.data = this.craftDelegate.getType().getNewData(data); // Paper } @Override @@ -306,17 +315,8 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat } @Override - @Utility public boolean equals(Object obj) { - if (this == obj) { - return true; - } - if (!(obj instanceof ItemStack)) { - return false; - } - - ItemStack stack = (ItemStack) obj; - return getAmount() == stack.getAmount() && isSimilar(stack); + return this.craftDelegate.equals(obj); // Paper - delegate } /** @@ -326,49 +326,19 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @param stack the item stack to compare to * @return true if the two stacks are equal, ignoring the amount */ - @Utility public boolean isSimilar(@Nullable ItemStack stack) { - if (stack == null) { - return false; - } - if (stack == this) { - return true; - } - Material comparisonType = (this.type.isLegacy()) ? Bukkit.getUnsafe().fromLegacy(this.getData(), true) : this.type; // This may be called from legacy item stacks, try to get the right material - return comparisonType == stack.getType() && /* getDurability() == stack.getDurability() && */hasItemMeta() == stack.hasItemMeta() && (hasItemMeta() ? Bukkit.getItemFactory().equals(getItemMeta(), stack.getItemMeta()) : true); // Paper - remove redundant item durability check + return this.craftDelegate.isSimilar(stack); // Paper - delegate } @NotNull @Override public ItemStack clone() { - try { - ItemStack itemStack = (ItemStack) super.clone(); - - if (this.meta != null) { - itemStack.meta = this.meta.clone(); - } - - if (this.data != null) { - itemStack.data = this.data.clone(); - } - - return itemStack; - } catch (CloneNotSupportedException e) { - throw new Error(e); - } + return this.craftDelegate.clone(); // Paper - delegate } @Override - @Utility public int hashCode() { - int hash = 1; - - hash = hash * 31 + getType().hashCode(); - hash = hash * 31 + getAmount(); - hash = hash * 31 + (getDurability() & 0xffff); - hash = hash * 31 + (hasItemMeta() ? (meta == null ? getItemMeta().hashCode() : meta.hashCode()) : 0); - - return hash; + return this.craftDelegate.hashCode(); // Paper - delegate } /** @@ -378,7 +348,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @return True if this has the given enchantment */ public boolean containsEnchantment(@NotNull Enchantment ench) { - return meta == null ? false : meta.hasEnchant(ench); + return this.craftDelegate.containsEnchantment(ench); // Paper - delegate } /** @@ -388,7 +358,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @return Level of the enchantment, or 0 */ public int getEnchantmentLevel(@NotNull Enchantment ench) { - return meta == null ? 0 : meta.getEnchantLevel(ench); + return this.craftDelegate.getEnchantmentLevel(ench); // Paper - delegate } /** @@ -398,7 +368,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat */ @NotNull public Map getEnchantments() { - return meta == null ? ImmutableMap.of() : meta.getEnchants(); + return this.craftDelegate.getEnchantments(); // Paper - delegate } /** @@ -474,10 +444,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @param level Level of the enchantment */ public void addUnsafeEnchantment(@NotNull Enchantment ench, int level) { - ItemMeta itemMeta = (meta == null ? meta = Bukkit.getItemFactory().getItemMeta(type) : meta); - if (itemMeta != null) { - itemMeta.addEnchant(ench, level, true); - } + this.craftDelegate.addUnsafeEnchantment(ench, level); // Paper - delegate } /** @@ -488,23 +455,14 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @return Previous level, or 0 */ public int removeEnchantment(@NotNull Enchantment ench) { - int level = getEnchantmentLevel(ench); - if (level == 0 || meta == null) { - return level; - } - meta.removeEnchant(ench); - return level; + return this.craftDelegate.removeEnchantment(ench); // Paper - delegate } /** * Removes all enchantments on this ItemStack. */ public void removeEnchantments() { - if (meta == null) { - return; - } - - meta.removeEnchantments(); + this.craftDelegate.removeEnchantments(); // Paper - delegate } @Override @@ -660,7 +618,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat */ @UndefinedNullability // Paper public ItemMeta getItemMeta() { - return this.meta == null ? Bukkit.getItemFactory().getItemMeta(this.type) : this.meta.clone(); + return this.craftDelegate.getItemMeta(); // Paper - delegate } /** @@ -669,7 +627,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * @return Returns true if some meta data has been set for this item */ public boolean hasItemMeta() { - return !Bukkit.getItemFactory().equals(meta, null); + return this.craftDelegate.hasItemMeta(); // Paper - delegate } /** @@ -682,28 +640,10 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * the {@link ItemFactory} */ public boolean setItemMeta(@Nullable ItemMeta itemMeta) { - return setItemMeta0(itemMeta, type); + return this.craftDelegate.setItemMeta(itemMeta); // Paper - delegate } - /* - * Cannot be overridden, so it's safe for constructor call - */ - private boolean setItemMeta0(@Nullable ItemMeta itemMeta, @NotNull Material material) { - if (itemMeta == null) { - this.meta = null; - return true; - } - if (!Bukkit.getItemFactory().isApplicable(itemMeta, material)) { - return false; - } - this.meta = Bukkit.getItemFactory().asMetaFor(itemMeta, material); - - if (this.meta == itemMeta) { - this.meta = itemMeta.clone(); - } - - return true; - } + // Paper - delegate @Override @NotNull @@ -894,11 +834,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat } public int getMaxItemUseDuration(@NotNull final org.bukkit.entity.LivingEntity entity) { - if (type == null || type == Material.AIR || !type.isItem()) { - return 0; - } - // Requires access to NMS - return ensureServerConversions().getMaxItemUseDuration(entity); + return this.craftDelegate.getMaxItemUseDuration(entity); // Paper - delegate } /** @@ -1148,7 +1084,8 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat */ @NotNull public static ItemStack empty() { - return new ItemStack(); + //noinspection deprecation + return Bukkit.getUnsafe().createEmptyStack(); // Paper - proxy ItemStack } /** @@ -1156,7 +1093,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat * it is either air or the stack has a size of 0. */ public boolean isEmpty() { - return type.isAir() || amount <= 0; + return this.craftDelegate.isEmpty(); // Paper - delegate } // Paper end // Paper start - expose itemstack tooltip lines diff --git a/src/test/java/org/bukkit/configuration/ConfigurationSectionTest.java b/src/test/java/org/bukkit/configuration/ConfigurationSectionTest.java index ee5bc86f47cf5599e4c5c34e3a9084f86d74bdb7..c6b49c7e0a3357566fc859d4f0c76e77fefbd371 100644 --- a/src/test/java/org/bukkit/configuration/ConfigurationSectionTest.java +++ b/src/test/java/org/bukkit/configuration/ConfigurationSectionTest.java @@ -547,6 +547,7 @@ public abstract class ConfigurationSectionTest { } @Test + @org.junit.jupiter.api.Disabled("ItemStack can't exist without the Server, test moved to server") public void testGetItemStack_String() { ConfigurationSection section = getConfigurationSection(); String key = "exists"; @@ -559,6 +560,7 @@ public abstract class ConfigurationSectionTest { } @Test + @org.junit.jupiter.api.Disabled("ItemStack can't exist without the Server, test moved to server") public void testGetItemStack_String_ItemStack() { ConfigurationSection section = getConfigurationSection(); String key = "exists"; @@ -572,6 +574,7 @@ public abstract class ConfigurationSectionTest { } @Test + @org.junit.jupiter.api.Disabled("ItemStack can't exist without the Server, test moved to server") public void testIsItemStack() { ConfigurationSection section = getConfigurationSection(); String key = "exists";