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Paper/patches/api/0004-Code-Generation.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 26 May 2023 18:14:44 -0700
Subject: [PATCH] Code Generation
Currently includes generated key holder classes for types
used in the Registry Modification API
diff --git a/build.gradle.kts b/build.gradle.kts
index 8c7a5be5193ae397ec324d78566edce90608ed57..877ea06c0ea8c8c0c73d23fbb996f6692c100d98 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,7 @@
plugins {
`java-library`
`maven-publish`
+ idea // Paper
}
java {
@@ -46,6 +47,22 @@ dependencies {
testImplementation("org.ow2.asm:asm-tree:9.7")
}
+// Paper start
+val generatedApiPath: java.nio.file.Path = rootProject.projectDir.toPath().resolve("paper-api-generator/generated")
+idea {
+ module {
+ generatedSourceDirs.add(generatedApiPath.toFile())
+ }
+}
+sourceSets {
+ main {
+ java {
+ srcDir(generatedApiPath)
+ }
+ }
+}
+// Paper end
+
configure<PublishingExtension> {
publications.create<MavenPublication>("maven") {
from(components["java"])
@@ -123,3 +140,14 @@ tasks.check {
dependsOn(scanJar)
}
// Paper end
+// Paper start
+val scanJarForOldGeneratedCode = tasks.register("scanJarForOldGeneratedCode", io.papermc.paperweight.tasks.ScanJarForOldGeneratedCode::class) {
+ mcVersion.set(providers.gradleProperty("mcVersion"))
+ annotation.set("Lio/papermc/paper/generated/GeneratedFrom;")
+ jarToScan.set(tasks.jar.flatMap { it.archiveFile })
+ classpath.from(configurations.compileClasspath)
+}
+tasks.check {
+ dependsOn(scanJarForOldGeneratedCode)
+}
+// Paper end
diff --git a/src/main/java/io/papermc/paper/generated/GeneratedFrom.java b/src/main/java/io/papermc/paper/generated/GeneratedFrom.java
new file mode 100644
index 0000000000000000000000000000000000000000..2512dba27edfdccbc4430815b6cba048e3d93484
--- /dev/null
+++ b/src/main/java/io/papermc/paper/generated/GeneratedFrom.java
@@ -0,0 +1,21 @@
+package io.papermc.paper.generated;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * Used to mark classes which are generated from
+ * a specific version of minecraft.
+ */
+@ApiStatus.Internal
+@Documented
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface GeneratedFrom {
+
+ String value();
+}
diff --git a/src/main/java/io/papermc/paper/registry/RegistryKey.java b/src/main/java/io/papermc/paper/registry/RegistryKey.java
new file mode 100644
index 0000000000000000000000000000000000000000..8410d7213370f01cbedbf7fac29bac96f150c49a
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/RegistryKey.java
@@ -0,0 +1,179 @@
+package io.papermc.paper.registry;
+
+import net.kyori.adventure.key.Keyed;
+import org.bukkit.Art;
+import org.bukkit.Fluid;
+import org.bukkit.GameEvent;
+import org.bukkit.JukeboxSong;
+import org.bukkit.MusicInstrument;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.block.Biome;
+import org.bukkit.block.BlockType;
+import org.bukkit.block.banner.PatternType;
+import org.bukkit.damage.DamageType;
+import org.bukkit.enchantments.Enchantment;
+import org.bukkit.entity.Cat;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Frog;
+import org.bukkit.entity.Villager;
+import org.bukkit.entity.Wolf;
+import org.bukkit.entity.memory.MemoryKey;
+import org.bukkit.generator.structure.Structure;
+import org.bukkit.generator.structure.StructureType;
+import org.bukkit.inventory.ItemType;
+import org.bukkit.inventory.MenuType;
+import org.bukkit.inventory.meta.trim.TrimMaterial;
+import org.bukkit.inventory.meta.trim.TrimPattern;
+import org.bukkit.map.MapCursor;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.potion.PotionType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+import static io.papermc.paper.registry.RegistryKeyImpl.create;
+
+/**
+ * Identifier for a specific registry. For use with
+ * {@link TypedKey} and the registry modification API.
+ * <p>
+ * There are 2 types of registries, identified as "built-in"
+ * or "data-driven". The former are not changeable by datapacks (which
+ * doesn't necessarily mean they aren't changeable in the API) and
+ * are loaded first. "Data-driven" registries are all created by
+ * reading in data from the vanilla and other datapacks.
+ *
+ * @param <T> the value type
+ */
+@SuppressWarnings("unused")
+@NullMarked
+public sealed interface RegistryKey<T> extends Keyed permits RegistryKeyImpl {
+
+ /* ******************* *
+ * Built-in Registries *
+ * ******************* */
+ /**
+ * Built-in registry for game events
+ * @see io.papermc.paper.registry.keys.GameEventKeys
+ */
+ RegistryKey<GameEvent> GAME_EVENT = create("game_event");
+ /**
+ * Built-in registry for structure types.
+ * @see io.papermc.paper.registry.keys.StructureTypeKeys
+ */
+ RegistryKey<StructureType> STRUCTURE_TYPE = create("worldgen/structure_type");
+ /**
+ * Built-in registry for instruments.
+ * @see io.papermc.paper.registry.keys.InstrumentKeys
+ */
+ RegistryKey<MusicInstrument> INSTRUMENT = create("instrument");
+ /**
+ * Built-in registry for potion effect types (mob effects).
+ * @see io.papermc.paper.registry.keys.MobEffectKeys
+ */
+ RegistryKey<PotionEffectType> MOB_EFFECT = create("mob_effect");
+ /**
+ * @apiNote DO NOT USE
+ */
+ @ApiStatus.Internal
+ RegistryKey<BlockType> BLOCK = create("block");
+ /**
+ * @apiNote DO NOT USE
+ */
+ @ApiStatus.Internal
+ RegistryKey<ItemType> ITEM = create("item");
+ /**
+ * Built-in registry for cat variants.
+ * @see io.papermc.paper.registry.keys.CatVariantKeys
+ */
+ RegistryKey<Cat.Type> CAT_VARIANT = create("cat_variant");
+ /**
+ * Built-in registry for frog variants.
+ * @see io.papermc.paper.registry.keys.FrogVariantKeys
+ */
+ RegistryKey<Frog.Variant> FROG_VARIANT = create("frog_variant");
+ /**
+ * Built-in registry for villager professions.
+ * @see io.papermc.paper.registry.keys.VillagerProfessionKeys
+ */
+ RegistryKey<Villager.Profession> VILLAGER_PROFESSION = create("villager_profession");
+ /**
+ * Built-in registry for villager types.
+ * @see io.papermc.paper.registry.keys.VillagerTypeKeys
+ */
+ RegistryKey<Villager.Type> VILLAGER_TYPE = create("villager_type");
+ /**
+ * Built-in registry for map decoration types.
+ * @see io.papermc.paper.registry.keys.MapDecorationTypeKeys
+ */
+ RegistryKey<MapCursor.Type> MAP_DECORATION_TYPE = create("map_decoration_type");
+ /**
+ * Built-in registry for menu types.
+ * @see io.papermc.paper.registry.keys.MenuTypeKeys
+ */
+ RegistryKey<MenuType> MENU = create("menu");
+
+
+ /* ********************** *
+ * Data-driven Registries *
+ * ********************** */
+ /**
+ * Data-driven registry for biomes.
+ * @see io.papermc.paper.registry.keys.BiomeKeys
+ */
+ RegistryKey<Biome> BIOME = create("worldgen/biome");
+ /**
+ * Data-driven registry for structures.
+ * @see io.papermc.paper.registry.keys.StructureKeys
+ */
+ RegistryKey<Structure> STRUCTURE = create("worldgen/structure");
+ /**
+ * Data-driven registry for trim materials.
+ * @see io.papermc.paper.registry.keys.TrimMaterialKeys
+ */
+ RegistryKey<TrimMaterial> TRIM_MATERIAL = create("trim_material");
+ /**
+ * Data-driven registry for trim patterns.
+ * @see io.papermc.paper.registry.keys.TrimPatternKeys
+ */
+ RegistryKey<TrimPattern> TRIM_PATTERN = create("trim_pattern");
+ /**
+ * Data-driven registry for damage types.
+ * @see io.papermc.paper.registry.keys.DamageTypeKeys
+ */
+ RegistryKey<DamageType> DAMAGE_TYPE = create("damage_type");
+ /**
+ * Data-driven registry for wolf variants.
+ * @see io.papermc.paper.registry.keys.WolfVariantKeys
+ */
+ RegistryKey<Wolf.Variant> WOLF_VARIANT = create("wolf_variant");
+ /**
+ * Data-driven registry for enchantments.
+ * @see io.papermc.paper.registry.keys.EnchantmentKeys
+ */
+ RegistryKey<Enchantment> ENCHANTMENT = create("enchantment");
+ /**
+ * Data-driven registry for jukebox songs.
+ * @see io.papermc.paper.registry.keys.JukeboxSongKeys
+ */
+ RegistryKey<JukeboxSong> JUKEBOX_SONG = create("jukebox_song");
+ /**
+ * Data-driven registry for banner patterns.
+ * @see io.papermc.paper.registry.keys.BannerPatternKeys
+ */
+ RegistryKey<PatternType> BANNER_PATTERN = create("banner_pattern");
+
+
+ /* ******************* *
+ * API-only Registries *
+ * ******************* */
+ RegistryKey<Art> PAINTING_VARIANT = create("painting_variant");
+ RegistryKey<Attribute> ATTRIBUTE = create("attribute");
+ RegistryKey<EntityType> ENTITY_TYPE = create("entity_type");
+ RegistryKey<Particle> PARTICLE_TYPE = create("particle_type");
+ RegistryKey<PotionType> POTION = create("potion");
+ RegistryKey<Sound> SOUND_EVENT = create("sound_event");
+ RegistryKey<MemoryKey<?>> MEMORY_MODULE_TYPE = create("memory_module_type");
+ RegistryKey<Fluid> FLUID = create("fluid");
+}
diff --git a/src/main/java/io/papermc/paper/registry/RegistryKeyImpl.java b/src/main/java/io/papermc/paper/registry/RegistryKeyImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..80e3e64f47ac55a4978c9e5b430e2f2d1c871d1b
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/RegistryKeyImpl.java
@@ -0,0 +1,26 @@
+package io.papermc.paper.registry;
+
+import com.google.common.collect.Sets;
+import java.util.Set;
+import net.kyori.adventure.key.Key;
+import org.intellij.lang.annotations.Subst;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+@NullMarked
+record RegistryKeyImpl<T>(Key key) implements RegistryKey<T> {
+
+ static final Set<RegistryKey<?>> REGISTRY_KEYS = Sets.newIdentityHashSet();
+
+ static <T> RegistryKey<T> create(@Subst("some_key") final String key) {
+ final RegistryKey<T> registryKey = createInternal(key);
+ REGISTRY_KEYS.add(registryKey);
+ return registryKey;
+ }
+
+ // creates the key without adding to the internal set of keys
+ static <T> RegistryKey<T> createInternal(@Subst("some_key") final String key) {
+ return new RegistryKeyImpl<>(Key.key(Key.MINECRAFT_NAMESPACE, key));
+ }
+
+}
diff --git a/src/main/java/io/papermc/paper/registry/TypedKey.java b/src/main/java/io/papermc/paper/registry/TypedKey.java
new file mode 100644
index 0000000000000000000000000000000000000000..cb2e1a4a6d583787573eeefab24e3188c43d148f
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/TypedKey.java
@@ -0,0 +1,45 @@
+package io.papermc.paper.registry;
+
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.key.Keyed;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Represents a key for a value in a specific registry.
+ *
+ * @param <T> the value type for the registry
+ */
+@ApiStatus.Experimental
+@NullMarked
+public sealed interface TypedKey<T> extends Keyed permits TypedKeyImpl {
+
+ /**
+ * Gets the key for the value in the registry.
+ *
+ * @return the value's key
+ */
+ @Override
+ Key key();
+
+ /**
+ * Gets the registry key for the value this key
+ * represents.
+ *
+ * @return the registry key
+ */
+ RegistryKey<T> registryKey();
+
+ /**
+ * Create a typed key from a key and a registry key.
+ *
+ * @param registryKey the registry this key is for
+ * @param key the key for the value in the registry
+ * @param <T> value type
+ * @return a new key for the value key and registry key
+ */
+ @ApiStatus.Experimental
+ static <T> TypedKey<T> create(final RegistryKey<T> registryKey, final Key key) {
+ return new TypedKeyImpl<>(key, registryKey);
+ }
+}
diff --git a/src/main/java/io/papermc/paper/registry/TypedKeyImpl.java b/src/main/java/io/papermc/paper/registry/TypedKeyImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..99375deaa6b90b33cd6a77e0df651236d304874e
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/TypedKeyImpl.java
@@ -0,0 +1,8 @@
+package io.papermc.paper.registry;
+
+import net.kyori.adventure.key.Key;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+record TypedKeyImpl<T>(Key key, RegistryKey<T> registryKey) implements TypedKey<T> {
+}
diff --git a/src/main/java/org/bukkit/MinecraftExperimental.java b/src/main/java/org/bukkit/MinecraftExperimental.java
index a86b87e4c3332202e40e484c3f9c6562b419c70f..305532968f9f7dd497c77259ed147ea2f081bc74 100644
--- a/src/main/java/org/bukkit/MinecraftExperimental.java
+++ b/src/main/java/org/bukkit/MinecraftExperimental.java
@@ -47,5 +47,6 @@ public @interface MinecraftExperimental {
@ApiStatus.Internal
public enum Requires {
+ BUNDLE, TRADE_REBALANCE // Paper
}
}
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