Use enhanced switches in more places (#4043)

.editorconfig

@@ -2,7 +2,7 @@
 charset = utf-8
 indent_size = 4
 indent_style = space
-insert_final_newline = false
+insert_final_newline = true
 tab_width = 4
 
 [*.java]

common/src/main/java/com/viaversion/viaversion/legacy/bossbar/CommonBoss.java

@@ -246,7 +246,7 @@ public class CommonBoss implements BossBar {
             wrapper.write(Types.UUID, uuid);
             wrapper.write(Types.VAR_INT, action.getId());
             switch (action) {
-                case ADD:
+                case ADD -> {
                     try {
                         wrapper.write(Types.COMPONENT, JsonParser.parseString(this.title));
                     } catch (Exception e) {
@@ -256,26 +256,22 @@ public class CommonBoss implements BossBar {
                     wrapper.write(Types.VAR_INT, color.getId());
                     wrapper.write(Types.VAR_INT, style.getId());
                     wrapper.write(Types.BYTE, (byte) flagToBytes());
-                    break;
+                }
-                case REMOVE:
+                case REMOVE -> {
-                    break;
+                }
-                case UPDATE_HEALTH:
+                case UPDATE_HEALTH -> wrapper.write(Types.FLOAT, health);
-                    wrapper.write(Types.FLOAT, health);
+                case UPDATE_TITLE -> {
-                    break;
-                case UPDATE_TITLE:
                     try {
                         wrapper.write(Types.COMPONENT, JsonParser.parseString(this.title));
                     } catch (Exception e) {
                         wrapper.write(Types.COMPONENT, ComponentUtil.plainToJson(this.title));
                     }
-                    break;
+                }
-                case UPDATE_STYLE:
+                case UPDATE_STYLE -> {
                     wrapper.write(Types.VAR_INT, color.getId());
                     wrapper.write(Types.VAR_INT, style.getId());
-                    break;
+                }
-                case UPDATE_FLAGS:
+                case UPDATE_FLAGS -> wrapper.write(Types.BYTE, (byte) flagToBytes());
-                    wrapper.write(Types.BYTE, (byte) flagToBytes());
-                    break;
             }
 
             return wrapper;

common/src/main/java/com/viaversion/viaversion/protocols/v1_12_2to1_13/Protocol1_12_2To1_13.java

@@ -779,7 +779,7 @@ public class Protocol1_12_2To1_13 extends AbstractProtocol<ClientboundPackets1_1
 
             // Clone item arrays because array and item are mutable, also make sure the array type is the interface
             switch (recipe.type()) {
-                case "crafting_shapeless": {
+                case "crafting_shapeless" -> {
                     recipesPacket.write(Types.STRING, recipe.group());
                     recipesPacket.write(Types.VAR_INT, recipe.ingredients().length);
                     for (Item[] ingredient : recipe.ingredients()) {
@@ -791,9 +791,8 @@ public class Protocol1_12_2To1_13 extends AbstractProtocol<ClientboundPackets1_1
                         recipesPacket.write(Types.ITEM1_13_ARRAY, clone);
                     }
                     recipesPacket.write(Types.ITEM1_13, recipe.result().copy());
-                    break;
                 }
-                case "crafting_shaped": {
+                case "crafting_shaped" -> {
                     recipesPacket.write(Types.VAR_INT, recipe.width());
                     recipesPacket.write(Types.VAR_INT, recipe.height());
                     recipesPacket.write(Types.STRING, recipe.group());
@@ -806,9 +805,8 @@ public class Protocol1_12_2To1_13 extends AbstractProtocol<ClientboundPackets1_1
                         recipesPacket.write(Types.ITEM1_13_ARRAY, clone);
                     }
                     recipesPacket.write(Types.ITEM1_13, recipe.result().copy());
-                    break;
                 }
-                case "smelting": {
+                case "smelting" -> {
                     recipesPacket.write(Types.STRING, recipe.group());
                     Item[] ingredient = new Item[recipe.ingredient().length];
                     for (int i = 0; i < ingredient.length; i++) {
@@ -819,7 +817,6 @@ public class Protocol1_12_2To1_13 extends AbstractProtocol<ClientboundPackets1_1
                     recipesPacket.write(Types.ITEM1_13, recipe.result().copy());
                     recipesPacket.write(Types.FLOAT, recipe.experience());
                     recipesPacket.write(Types.VAR_INT, recipe.cookingTime());
-                    break;
                 }
             }
         }

common/src/main/java/com/viaversion/viaversion/protocols/v1_12_2to1_13/blockconnections/StairConnectionHandler.java

@@ -61,23 +61,14 @@ public class StairConnectionHandler implements ConnectionHandler {
 
             byte shape;
             switch (blockData.getValue("shape")) {
-                case "straight":
+                case "straight" -> shape = 0;
-                    shape = 0;
+                case "inner_left" -> shape = 1;
-                    break;
+                case "inner_right" -> shape = 2;
-                case "inner_left":
+                case "outer_left" -> shape = 3;
-                    shape = 1;
+                case "outer_right" -> shape = 4;
-                    break;
+                default -> {
-                case "inner_right":
-                    shape = 2;
-                    break;
-                case "outer_left":
-                    shape = 3;
-                    break;
-                case "outer_right":
-                    shape = 4;
-                    break;
-                default:
                     return;
+                }
             }
 
             StairData stairData = new StairData(

common/src/main/java/com/viaversion/viaversion/protocols/v1_12_2to1_13/rewriter/ItemPacketRewriter1_13.java

@@ -453,30 +453,22 @@ public class ItemPacketRewriter1_13 extends ItemRewriter<ClientboundPackets1_12_
 
     public static String getNewPluginChannelId(String old) {
         // Default channels that should not be modifiable
-        switch (old) {
+        return switch (old) {
-            case "MC|TrList":
+            case "MC|TrList" -> "minecraft:trader_list";
-                return "minecraft:trader_list";
+            case "MC|Brand" -> "minecraft:brand";
-            case "MC|Brand":
+            case "MC|BOpen" -> "minecraft:book_open";
-                return "minecraft:brand";
+            case "MC|DebugPath" -> "minecraft:debug/paths";
-            case "MC|BOpen":
+            case "MC|DebugNeighborsUpdate" -> "minecraft:debug/neighbors_update";
-                return "minecraft:book_open";
+            case "REGISTER" -> "minecraft:register";
-            case "MC|DebugPath":
+            case "UNREGISTER" -> "minecraft:unregister";
-                return "minecraft:debug/paths";
+            case "BungeeCord" -> "bungeecord:main";
-            case "MC|DebugNeighborsUpdate":
+            case "bungeecord:main" -> null;
-                return "minecraft:debug/neighbors_update";
+            default -> {
-            case "REGISTER":
-                return "minecraft:register";
-            case "UNREGISTER":
-                return "minecraft:unregister";
-            case "BungeeCord":
-                return "bungeecord:main";
-            case "bungeecord:main":
-                return null;
-            default:
                 String mappedChannel = Protocol1_12_2To1_13.MAPPINGS.getChannelMappings().get(old);
-                if (mappedChannel != null) return mappedChannel;
+                if (mappedChannel != null) yield mappedChannel;
-                return MappingData1_13.validateNewChannel(old);
+                yield MappingData1_13.validateNewChannel(old);
-        }
+            }
+        };
     }
 
     @Override
@@ -687,28 +679,21 @@ public class ItemPacketRewriter1_13 extends ItemRewriter<ClientboundPackets1_12_
         if (newId == null) return null;
 
         // Default channels that should not be modifiable
-        switch (newId) {
+        return switch (newId) {
-            case "minecraft:trader_list":
+            case "minecraft:trader_list" -> "MC|TrList";
-                return "MC|TrList";
+            case "minecraft:book_open" -> "MC|BOpen";
-            case "minecraft:book_open":
+            case "minecraft:debug/paths" -> "MC|DebugPath";
-                return "MC|BOpen";
+            case "minecraft:debug/neighbors_update" -> "MC|DebugNeighborsUpdate";
-            case "minecraft:debug/paths":
+            case "minecraft:register" -> "REGISTER";
-                return "MC|DebugPath";
+            case "minecraft:unregister" -> "UNREGISTER";
-            case "minecraft:debug/neighbors_update":
+            case "minecraft:brand" -> "MC|Brand";
-                return "MC|DebugNeighborsUpdate";
+            case "bungeecord:main" -> "BungeeCord";
-            case "minecraft:register":
+            default -> {
-                return "REGISTER";
-            case "minecraft:unregister":
-                return "UNREGISTER";
-            case "minecraft:brand":
-                return "MC|Brand";
-            case "bungeecord:main":
-                return "BungeeCord";
-            default:
                 String mappedChannel = Protocol1_12_2To1_13.MAPPINGS.getChannelMappings().inverse().get(newId);
-                if (mappedChannel != null) return mappedChannel;
+                if (mappedChannel != null) yield mappedChannel;
-                return newId.length() > 20 ? newId.substring(0, 20) : newId;
+                yield newId.length() > 20 ? newId.substring(0, 20) : newId;
-        }
+            }
+        };
     }
 
     public static boolean isDamageable(int id) {

common/src/main/java/com/viaversion/viaversion/protocols/v1_13_2to1_14/rewriter/ItemPacketRewriter1_14.java

@@ -86,42 +86,21 @@ public class ItemPacketRewriter1_14 extends ItemRewriter<ClientboundPackets1_13,
 
                 int typeId = -1;
                 switch (type) {
-                    case "minecraft:crafting_table":
+                    case "minecraft:crafting_table" -> typeId = 11;
-                        typeId = 11;
+                    case "minecraft:furnace" -> typeId = 13;
-                        break;
+                    case "minecraft:dropper", "minecraft:dispenser" -> typeId = 6;
-                    case "minecraft:furnace":
+                    case "minecraft:enchanting_table" -> typeId = 12;
-                        typeId = 13;
+                    case "minecraft:brewing_stand" -> typeId = 10;
-                        break;
+                    case "minecraft:villager" -> typeId = 18;
-                    case "minecraft:dropper", "minecraft:dispenser":
+                    case "minecraft:beacon" -> typeId = 8;
-                        typeId = 6;
+                    case "minecraft:anvil" -> typeId = 7;
-                        break;
+                    case "minecraft:hopper" -> typeId = 15;
-                    case "minecraft:enchanting_table":
+                    case "minecraft:shulker_box" -> typeId = 19;
-                        typeId = 12;
+                    default -> {
-                        break;
-                    case "minecraft:brewing_stand":
-                        typeId = 10;
-                        break;
-                    case "minecraft:villager":
-                        typeId = 18;
-                        break;
-                    case "minecraft:beacon":
-                        typeId = 8;
-                        break;
-                    case "minecraft:anvil":
-                        typeId = 7;
-                        break;
-                    case "minecraft:hopper":
-                        typeId = 15;
-                        break;
-                    case "minecraft:shulker_box":
-                        typeId = 19;
-                        break;
-                    case "minecraft:container", "minecraft:chest":
-                    default:
                         if (slots > 0 && slots <= 54) {
                             typeId = slots / 9 - 1;
                         }
-                        break;
+                    }
                 }
 
                 if (typeId == -1) {

common/src/main/java/com/viaversion/viaversion/protocols/v1_15_2to1_16/rewriter/EntityPacketRewriter1_16.java

@@ -51,22 +51,23 @@ public class EntityPacketRewriter1_16 extends EntityRewriter<ClientboundPackets1
         String dimensionName;
         String outputName;
         switch (dimension) {
-            case -1:
+            case -1 -> {
                 dimensionName = "minecraft:the_nether";
                 outputName = map.nether();
-                break;
+            }
-            case 0:
+            case 0 -> {
                 dimensionName = "minecraft:overworld";
                 outputName = map.overworld();
-                break;
+            }
-            case 1:
+            case 1 -> {
                 dimensionName = "minecraft:the_end";
                 outputName = map.end();
-                break;
+            }
-            default:
+            default -> {
                 protocol.getLogger().warning("Invalid dimension id: " + dimension);
                 dimensionName = "minecraft:overworld";
                 outputName = map.overworld();
+            }
         }
 
         wrapper.write(Types.STRING, dimensionName); // dimension

common/src/main/java/com/viaversion/viaversion/protocols/v1_19_1to1_19_3/rewriter/ItemPacketRewriter1_19_3.java

@@ -19,7 +19,6 @@ package com.viaversion.viaversion.protocols.v1_19_1to1_19_3.rewriter;
 
 import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
 import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_18;
 import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.Protocol1_19_1To1_19_3;
@@ -66,7 +65,7 @@ public final class ItemPacketRewriter1_19_3 extends ItemRewriter<ClientboundPack
                 final String type = Key.stripMinecraftNamespace(wrapper.passthrough(Types.STRING));
                 wrapper.passthrough(Types.STRING); // Recipe Identifier
                 switch (type) {
-                    case "crafting_shapeless": {
+                    case "crafting_shapeless" -> {
                         wrapper.passthrough(Types.STRING); // Group
                         wrapper.write(Types.VAR_INT, MISC_CRAFTING_BOOK_CATEGORY);
                         final int ingredients = wrapper.passthrough(Types.VAR_INT);
@@ -77,9 +76,8 @@ public final class ItemPacketRewriter1_19_3 extends ItemRewriter<ClientboundPack
                             }
                         }
                         handleItemToClient(wrapper.user(), wrapper.passthrough(Types.ITEM1_13_2)); // Result
-                        break;
                     }
-                    case "crafting_shaped": {
+                    case "crafting_shaped" -> {
                         final int ingredients = wrapper.passthrough(Types.VAR_INT) * wrapper.passthrough(Types.VAR_INT);
                         wrapper.passthrough(Types.STRING); // Group
                         wrapper.write(Types.VAR_INT, MISC_CRAFTING_BOOK_CATEGORY);
@@ -90,12 +88,8 @@ public final class ItemPacketRewriter1_19_3 extends ItemRewriter<ClientboundPack
                             }
                         }
                         handleItemToClient(wrapper.user(), wrapper.passthrough(Types.ITEM1_13_2)); // Result
-                        break;
                     }
-                    case "smelting":
+                    case "smelting", "campfire_cooking", "blasting", "smoking" -> {
-                    case "campfire_cooking":
-                    case "blasting":
-                    case "smoking":
                         wrapper.passthrough(Types.STRING); // Group
                         wrapper.write(Types.VAR_INT, MISC_CRAFTING_BOOK_CATEGORY);
                         final Item[] items = wrapper.passthrough(Types.ITEM1_13_2_ARRAY); // Ingredients
@@ -105,25 +99,12 @@ public final class ItemPacketRewriter1_19_3 extends ItemRewriter<ClientboundPack
                         handleItemToClient(wrapper.user(), wrapper.passthrough(Types.ITEM1_13_2)); // Result
                         wrapper.passthrough(Types.FLOAT); // EXP
                         wrapper.passthrough(Types.VAR_INT); // Cooking time
-                        break;
+                    }
-                    case "crafting_special_armordye":
+                    case "crafting_special_armordye", "crafting_special_bookcloning", "crafting_special_mapcloning", "crafting_special_mapextending",
-                    case "crafting_special_bookcloning":
+                         "crafting_special_firework_rocket", "crafting_special_firework_star", "crafting_special_firework_star_fade", "crafting_special_tippedarrow",
-                    case "crafting_special_mapcloning":
+                         "crafting_special_bannerduplicate", "crafting_special_shielddecoration", "crafting_special_shulkerboxcoloring", "crafting_special_suspiciousstew",
-                    case "crafting_special_mapextending":
+                         "crafting_special_repairitem" -> wrapper.write(Types.VAR_INT, MISC_CRAFTING_BOOK_CATEGORY);
-                    case "crafting_special_firework_rocket":
+                    default -> recipeRewriter.handleRecipeType(wrapper, type);
-                    case "crafting_special_firework_star":
-                    case "crafting_special_firework_star_fade":
-                    case "crafting_special_tippedarrow":
-                    case "crafting_special_bannerduplicate":
-                    case "crafting_special_shielddecoration":
-                    case "crafting_special_shulkerboxcoloring":
-                    case "crafting_special_suspiciousstew":
-                    case "crafting_special_repairitem":
-                        wrapper.write(Types.VAR_INT, MISC_CRAFTING_BOOK_CATEGORY);
-                        break;
-                    default:
-                        recipeRewriter.handleRecipeType(wrapper, type);
-                        break;
                 }
             }
         });

common/src/main/java/com/viaversion/viaversion/protocols/v1_19to1_19_1/Protocol1_19To1_19_1.java

@@ -399,19 +399,13 @@ public final class Protocol1_19To1_19_1 extends AbstractProtocol<ClientboundPack
             for (final StringTag element : parameters) {
                 JsonElement argument = null;
                 switch (element.getValue()) {
-                    case "sender":
+                    case "sender" -> argument = senderName;
-                        argument = senderName;
+                    case "content" -> argument = message;
-                        break;
+                    case "team_name", "target" /*So that this method can also be used in VB*/ -> {
-                    case "content":
-                        argument = message;
-                        break;
-                    case "team_name":
-                    case "target": // So that this method can also be used in VB
                         Preconditions.checkNotNull(targetName, "Team name is null");
                         argument = targetName;
-                        break;
+                    }
-                    default:
+                    default -> LOGGER.warning("Unknown parameter for chat decoration: " + element.getValue());
-                        LOGGER.warning("Unknown parameter for chat decoration: " + element.getValue());
                 }
                 if (argument != null) {
                     arguments.add(SerializerVersion.V1_18.toComponent(argument));

common/src/main/java/com/viaversion/viaversion/protocols/v1_8to1_9/Protocol1_8To1_9.java

@@ -67,15 +67,16 @@ public class Protocol1_8To1_9 extends AbstractProtocol<ClientboundPackets1_8, Cl
     }
 
     public static boolean isSword(int id) {
-        return switch (id) {
+        switch (id) {
-            case 267, // Iron sword
+            case 267: // Iron sword
-                 268, // Wooden sword
+            case 268: // Wooden sword
-                 272, // Stone sword
+            case 272: // Stone sword
-                 276, // Diamond sword
+            case 276: // Diamond sword
-                 283  // Gold sword
+            case 283: // Gold sword
-                -> true;
+                return true;
-            default -> false;
+            default:
-        };
+                return false;
+        }
     }
 
     @Override

common/src/main/java/com/viaversion/viaversion/protocols/v1_8to1_9/rewriter/EntityPacketRewriter1_9.java

@@ -23,10 +23,10 @@ import com.viaversion.viaversion.api.minecraft.EulerAngle;
 import com.viaversion.viaversion.api.minecraft.Vector;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_9;
-import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
 import com.viaversion.viaversion.api.minecraft.entitydata.EntityDataType;
 import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_8;
+import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer;
@@ -405,7 +405,7 @@ public class EntityPacketRewriter1_9 extends EntityRewriter<ClientboundPackets1_
 
         Object value = data.getValue();
         switch (dataIndex.getNewType()) {
-            case BYTE:
+            case BYTE -> {
                 // convert from int, byte
                 if (dataIndex.getOldType() == EntityDataTypes1_8.BYTE) {
                     data.setValue(value);
@@ -423,8 +423,8 @@ public class EntityPacketRewriter1_9 extends EntityRewriter<ClientboundPackets1_
                     EntityDataType dataType = EntityDataIndex1_9.PLAYER_HAND.getNewType();
                     event.createExtraData(new EntityData(newIndex, dataType, val));
                 }
-                break;
+            }
-            case OPTIONAL_UUID:
+            case OPTIONAL_UUID -> {
                 String owner = (String) value;
                 UUID toWrite = null;
                 if (!owner.isEmpty()) {
@@ -434,8 +434,8 @@ public class EntityPacketRewriter1_9 extends EntityRewriter<ClientboundPackets1_
                     }
                 }
                 data.setValue(toWrite);
-                break;
+            }
-            case VAR_INT:
+            case VAR_INT -> {
                 // convert from int, short, byte
                 if (dataIndex.getOldType() == EntityDataTypes1_8.BYTE) {
                     data.setValue(((Byte) value).intValue());
@@ -446,39 +446,33 @@ public class EntityPacketRewriter1_9 extends EntityRewriter<ClientboundPackets1_
                 if (dataIndex.getOldType() == EntityDataTypes1_8.INT) {
                     data.setValue(value);
                 }
-                break;
+            }
-            case FLOAT, STRING:
+            case FLOAT, STRING -> data.setValue(value);
-                data.setValue(value);
+            case BOOLEAN -> {
-                break;
-            case BOOLEAN:
                 if (dataIndex == EntityDataIndex1_9.ABSTRACT_AGEABLE_AGE)
                     data.setValue((Byte) value < 0);
                 else
                     data.setValue((Byte) value != 0);
-                break;
+            }
-            case ITEM:
+            case ITEM -> {
                 data.setValue(value);
                 protocol.getItemRewriter().handleItemToClient(event.user(), (Item) data.getValue());
-                break;
+            }
-            case BLOCK_POSITION:
+            case BLOCK_POSITION -> {
                 Vector vector = (Vector) value;
                 data.setValue(vector);
-                break;
+            }
-            case ROTATIONS:
+            case ROTATIONS -> {
                 EulerAngle angle = (EulerAngle) value;
                 data.setValue(angle);
-                break;
+            }
-            case COMPONENT:
+            case COMPONENT -> {
                 // Was previously also a component, so just convert it
                 String text = (String) value;
                 data.setValue(ComponentUtil.convertJsonOrEmpty(text, SerializerVersion.V1_8, SerializerVersion.V1_9));
-                break;
+            }
-            case OPTIONAL_BLOCK_STATE:
+            case OPTIONAL_BLOCK_STATE -> data.setValue(((Number) value).intValue()); // Convert from int, short, byte
-                // Convert from int, short, byte
+            default -> throw new RuntimeException("Unhandled EntityDataType: " + dataIndex.getNewType());
-                data.setValue(((Number) value).intValue());
-                break;
-            default:
-                throw new RuntimeException("Unhandled EntityDataType: " + dataIndex.getNewType());
         }
     }
 

common/src/main/java/com/viaversion/viaversion/rewriter/ComponentRewriter.java

@@ -161,12 +161,8 @@ public class ComponentRewriter<C extends ClientboundPacketType> implements com.v
 
     public void passthroughAndProcess(final PacketWrapper wrapper) {
         switch (type) {
-            case JSON:
+            case JSON -> processText(wrapper.user(), wrapper.passthrough(Types.COMPONENT));
-                processText(wrapper.user(), wrapper.passthrough(Types.COMPONENT));
+            case NBT -> processTag(wrapper.user(), wrapper.passthrough(Types.TAG));
-                break;
-            case NBT:
-                processTag(wrapper.user(), wrapper.passthrough(Types.TAG));
-                break;
         }
     }