1 files changed, 79 insertions, 0 deletions
diff --git a/patches/server/0537-ItemStack-repair-check-API.patch b/patches/server/0537-ItemStack-repair-check-API.patch
new file mode 100644
index 0000000000..1a746225f9
--- /dev/null
+++ b/patches/server/0537-ItemStack-repair-check-API.patch
@@ -0,0 +1,79 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sat, 15 May 2021 22:11:11 -0700
+Subject: [PATCH] ItemStack repair check API
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+index a71717fe99e78c480747cc61ab30b53b6667fde7..080ab25d3585552c1abd62a9992d48bf094fc065 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -551,6 +551,14 @@ public final class CraftMagicNumbers implements UnsafeValues {
+     public int getProtocolVersion() {
+         return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
+     }
++
++    @Override
++    public boolean isValidRepairItemStack(org.bukkit.inventory.ItemStack itemToBeRepaired, org.bukkit.inventory.ItemStack repairMaterial) {
++        if (!itemToBeRepaired.getType().isItem() || !repairMaterial.getType().isItem()) {
++            return false;
++        }
++        return CraftMagicNumbers.getItem(itemToBeRepaired.getType()).isValidRepairItem(CraftItemStack.asNMSCopy(itemToBeRepaired), CraftItemStack.asNMSCopy(repairMaterial));
++    }
+     // Paper end
+ 
+     @Override
+diff --git a/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..6b8d360ef86e181a680ad77f28b7dd7368dddfe7
+--- /dev/null
++++ b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
+@@ -0,0 +1,48 @@
++package io.papermc.paper.util;
++
++import org.bukkit.Material;
++import org.bukkit.inventory.ItemStack;
++import org.bukkit.support.AbstractTestingBase;
++import org.junit.jupiter.api.Test;
++
++import static org.junit.jupiter.api.Assertions.assertFalse;
++import static org.junit.jupiter.api.Assertions.assertThrows;
++import static org.junit.jupiter.api.Assertions.assertTrue;
++
++public class ItemStackRepairCheckTest extends AbstractTestingBase {
++
++    @Test
++    public void testIsRepariableBy() {
++        ItemStack diamondPick = new ItemStack(Material.DIAMOND_PICKAXE);
++
++        assertTrue(diamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)), "diamond pick isn't repairable by a diamond");
++    }
++
++    @Test
++    public void testCanRepair() {
++        ItemStack diamond = new ItemStack(Material.DIAMOND);
++
++        assertTrue(diamond.canRepair(new ItemStack(Material.DIAMOND_AXE)), "diamond can't repair a diamond axe");
++    }
++
++    @Test
++    public void testIsNotRepairableBy() {
++        ItemStack notDiamondPick = new ItemStack(Material.ACACIA_SAPLING);
++
++        assertFalse(notDiamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)), "acacia sapling is repairable by a diamond");
++    }
++
++    @Test
++    public void testCanNotRepair() {
++        ItemStack diamond = new ItemStack(Material.DIAMOND);
++
++        assertFalse(diamond.canRepair(new ItemStack(Material.OAK_BUTTON)), "diamond can repair oak button");
++    }
++
++    @Test
++    public void testInvalidItem() {
++        ItemStack badItemStack = new ItemStack(Material.ACACIA_WALL_SIGN);
++
++        assertFalse(badItemStack.isRepairableBy(new ItemStack(Material.DIAMOND)), "acacia wall sign is repairable by diamond");
++    }
++}