PaperMC/patches/server/Don-t-call-getItemMeta-on-hasItemMeta.patch
Nassim Jahnke 358877e2e2 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
fb23cbb3 Define surefire plugin version
d022084a Define ordering for MetadataStoreTest
99a7f6f0 PR-910: Match generic max absorption attribute name style with the rest
c7390d71 PR-909: Update tests to JUnit 5

CraftBukkit Changes:
f0661c351 PR-1230: Move unstructured PDC NBT serialisation to SNBT
452fcb599 PR-1256: Update tests to JUnit 5
2023-09-24 17:16:58 +10:00

64 lines
3.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hugo Manrique <hugmanrique@gmail.com>
Date: Thu, 26 Jul 2018 14:10:23 +0200
Subject: [PATCH] Don't call getItemMeta on hasItemMeta
Spigot 1.13 checks if any field (which are manually copied from the ItemStack's "tag" NBT tag) on the ItemMeta class of an ItemStack is set.
We could just check if the "tag" NBT tag is empty, albeit that would break some plugins. The only general tag added on 1.13 is "Damage", and we can just check if the "tag" NBT tag contains any other tag that's not "Damage" (https://minecraft.gamepedia.com/Player.dat_format#Item_structure) making the `hasItemStack` method behave as before.
Returns true if getDamage() == 0 or has damage tag or other tag is set.
Check the `ItemMetaTest#testTaggedButNotMeta` method to see how this method behaves.
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -0,0 +0,0 @@ public final class CraftItemStack extends ItemStack {
@Override
public boolean hasItemMeta() {
- return CraftItemStack.hasItemMeta(this.handle) && !CraftItemFactory.instance().equals(this.getItemMeta(), null);
+ return CraftItemStack.hasItemMeta(this.handle) && (this.handle.getDamageValue() != 0 || (this.handle.getTag() != null && this.handle.getTag().tags.size() >= (this.handle.getTag().contains(CraftMetaItem.DAMAGE.NBT) ? 2 : 1))); // Paper - keep 1.12 CraftBukkit behavior without calling getItemMeta
}
static boolean hasItemMeta(net.minecraft.world.item.ItemStack item) {
diff --git a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -0,0 +0,0 @@ public class ItemMetaTest extends AbstractTestingBase {
assertThat(itemMeta.hasConflictingEnchant(null), is(false));
}
+ // Paper start
+ private void testItemMeta(ItemStack stack) {
+ assertThat(stack.hasItemMeta(), is(false), "Should not have ItemMeta");
+
+ stack.setDurability((short) 0);
+ assertThat(stack.hasItemMeta(), is(false), "ItemStack with zero durability should not have ItemMeta");
+
+ stack.setDurability((short) 2);
+ assertThat(stack.hasItemMeta(), is(true), "ItemStack with non-zero durability should have ItemMeta");
+
+ stack.setLore(java.util.Collections.singletonList("Lore"));
+ assertThat(stack.hasItemMeta(), is(true), "ItemStack with lore and durability should have ItemMeta");
+
+ stack.setDurability((short) 0);
+ assertThat(stack.hasItemMeta(), is(true), "ItemStack with lore should have ItemMeta");
+
+ stack.setLore(null);
+ }
+
+ @Test
+ public void testHasItemMeta() {
+ ItemStack itemStack = new ItemStack(Material.SHEARS);
+
+ testItemMeta(itemStack);
+ testItemMeta(CraftItemStack.asCraftCopy(itemStack));
+ }
+ // Paper end
+
@Test
public void testConflictingStoredEnchantment() {
EnchantmentStorageMeta itemMeta = (EnchantmentStorageMeta) Bukkit.getItemFactory().getItemMeta(Material.ENCHANTED_BOOK);