papermc/Spigot-Server-Patches/0270-Don-t-call-getItemMeta-on-hasItemMeta.patch
Spottedleaf 5c7081fecc Update upstream & fix some chunk related issues (#2177)
* Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears 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:
45690fe9 SPIGOT-5047: Correct slot types for 1.14 inventories

CraftBukkit Changes:
4090d01f SPIGOT-5047: Correct slot types for 1.14 inventories
e8c08362 SPIGOT-5046: World#getLoadedChunks returning inaccessible cached chunks.
d445af3b SPIGOT-5067: Add item meta for 1.14 spawn eggs

* Bring Chunk load checks in-line with spigot

As of the last upstream merge spigot now checks ticket level status
when returning loaded chunks for a world from api. Now our checks
will respect that decision.

* Fix spawn ticket levels

Vanilla would keep the inner chunks of spawn available for ticking,
however my changes made all chunks non-ticking. Resolve by changing
ticket levels for spawn chunks inside the border to respect this
behavior.


* Make World#getChunkIfLoadedImmediately return only entity ticking chunks

Mojang appears to be using chunks with level > 33 (non-ticking chunks)
as cached chunks and not actually loaded chunks.

* Bring all loaded checks in line with spigot

Loaded chunks must be at least border  chunks, or level <= 33
2019-06-14 03:27:40 +01:00

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4.5 KiB
Diff

From 51bc9957213416d48bfe9ce4b4533bb42cae2e8d 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 bd85d9ec49..ee2f82162c 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -543,7 +543,7 @@ 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 2a0852675b..f30f743121 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -4,6 +4,7 @@ import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.Arrays;
+import java.util.Collections; // Paper
import java.util.List;
import java.util.UUID;
import com.destroystokyo.paper.inventory.meta.ArmorStandMeta; // Paper
@@ -180,7 +181,47 @@ public class ItemMetaTest extends AbstractTestingBase {
assertThat("noTag and enchanted stacks should not be similar", noTag.isSimilar(enchanted), is(false));
assertThat("noTag and enchanted stacks should not be equal", noTag.equals(enchanted), is(false));
+
+ // Paper start - test additional ItemMeta damage cases
+ ItemStack clone = CraftItemStack.asBukkitCopy(CraftItemStack.asNMSCopy(noDamage));
+ assertThat("Bukkit and craft stacks should be similar", noDamage.isSimilar(clone), is(true));
+ assertThat("Bukkit and craft stacks should be equal", noDamage.equals(clone), is(true));
+
+ ItemStack 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() {
--
2.21.0