Paper/Spigot-Server-Patches/0312-Don-t-call-getItemMeta-on-hasItemMeta.patch
Aikar 835bc39b03
Paper 1.13.1 Update
Updated Upstream (Bukkit/CraftBukkit/Spigot)

Bukkit Changes:
2dcc44dc SPIGOT-4307: Fix hacky API for banners on shields
e0fc6572 SPIGOT-4309: Add "forced" display of particles
efeeab2f Add index to README.md for easier navigation
f502bc6f Update to Minecraft 1.13.1

CraftBukkit Changes:
d0bb0a1d Fix some tests randomly failing
997d378d Fix client stall in specific teleportation scenarios
b3dc2366 SPIGOT-4307: Fix hacky API for banners on shields
2a271162 SPIGOT-4301: Fix more invalid enchants
5d0d83bb SPIGOT-4309: Add "forced" display of particles
a6772578 Add additional tests for CraftBlockData
ce1af0c3 Update to Minecraft 1.13.1

Spigot Changes:
2440e189 Rebuild patches
4ecffced Update to Minecraft 1.13.1
2018-08-26 20:51:39 -04:00

89 lines
4.6 KiB
Diff

From 0ed60fd7f609781ed5996993d982914ee61eff27 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 911463f5b2..974321df82 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -519,7 +519,7 @@ public final class CraftItemStack extends ItemStack {
@Override
public boolean hasItemMeta() {
- return hasItemMeta(handle) && !CraftItemFactory.instance().equals(getItemMeta(), null);
+ return hasItemMeta(handle) && (handle.getDamage() != 0 || (handle.getTag() != null && handle.getTag().map.size() >= (handle.getTag().hasKey(CraftMetaItem.DAMAGE.NBT) ? 2 : 1))); // Paper - keep 1.12 CraftBukkit behavior without calling getItemMeta
}
static boolean hasItemMeta(net.minecraft.server.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 ef9d40b8a0..a161993876 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -5,6 +5,7 @@ import static org.hamcrest.Matchers.*;
import java.util.ArrayList;
import java.util.Arrays;
+import java.util.Collections; // Paper
import java.util.List;
import com.destroystokyo.paper.inventory.meta.ArmorStandMeta; // Paper
import net.minecraft.server.Block;
@@ -155,8 +156,47 @@ public class ItemMetaTest extends AbstractTestingBase {
ItemStack pureBukkit = new ItemStack(Material.SHEARS);
assertThat("Bukkit and craft stacks should be similar", craft.isSimilar(pureBukkit), is(true));
assertThat("Bukkit and craft stacks should be equal", craft.equals(pureBukkit), is(true));
+ // Paper start - test additional ItemMeta damage cases
+ ItemStack clone = CraftItemStack.asBukkitCopy(CraftItemStack.asNMSCopy(craft));
+ assertThat("Bukkit and craft stacks should be similar", craft.isSimilar(clone), is(true));
+ assertThat("Bukkit and craft stacks should be equal", craft.equals(clone), is(true));
+
+ pureBukkit = new ItemStack(Material.DIAMOND_SWORD);
+ pureBukkit.setDurability((short) 2);
+ net.minecraft.server.ItemStack nms = CraftItemStack.asNMSCopy(pureBukkit);
+ ItemStack other = CraftItemStack.asBukkitCopy(nms);
+
+ assertThat("Bukkit and NMS ItemStack copies should be similar", pureBukkit.isSimilar(other), is(true));
+ assertThat("Bukkit and NMS ItemStack copies should be equal", pureBukkit.equals(other), is(true));
}
+ private void testItemMeta(ItemStack stack) {
+ assertThat("Should not have ItemMeta", stack.hasItemMeta(), is(false));
+
+ stack.setDurability((short) 0);
+ assertThat("ItemStack with zero durability should not have ItemMeta", stack.hasItemMeta(), is(false));
+
+ stack.setDurability((short) 2);
+ assertThat("ItemStack with non-zero durability should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setLore(Collections.singletonList("Lore"));
+ assertThat("ItemStack with lore and durability should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setDurability((short) 0);
+ assertThat("ItemStack with lore should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setLore(null);
+ }
+
+ @Test
+ public void testHasItemMeta() {
+ ItemStack itemStack = new ItemStack(Material.SHEARS);
+
+ testItemMeta(itemStack);
+ testItemMeta(CraftItemStack.asCraftCopy(itemStack));
+ }
+ // Paper end
+
@Test
public void testBlockStateMeta() {
List<Block> queue = new ArrayList<>();
--
2.18.0