Add BlockData#getAsString(boolean) to hide unspecified states

nms-patches/ArgumentBlock.patch

@@ -0,0 +1,40 @@
+--- a/net/minecraft/server/ArgumentBlock.java
++++ b/net/minecraft/server/ArgumentBlock.java
+@@ -41,7 +41,7 @@
+     private static final Function<SuggestionsBuilder, CompletableFuture<Suggestions>> h = SuggestionsBuilder::buildFuture;
+     private final StringReader i;
+     private final boolean j;
+-    private final Map<IBlockState<?>, Comparable<?>> k = Maps.newHashMap();
++    private final Map<IBlockState<?>, Comparable<?>> k = Maps.newLinkedHashMap(); // CraftBukkit - stable
+     private final Map<String, String> l = Maps.newHashMap();
+     private MinecraftKey m = new MinecraftKey("");
+     private BlockStateList<Block, IBlockData> n;
+@@ -222,7 +222,7 @@
+             if (comparable instanceof Integer) {
+                 suggestionsbuilder.suggest((Integer) comparable);
+             } else {
+-                suggestionsbuilder.suggest(iblockstate.a(comparable));
++                suggestionsbuilder.suggest(iblockstate.a((T) comparable)); // CraftBukkit - decompile error
+             }
+         }
+ 
+@@ -488,8 +488,8 @@
+         Optional optional = iblockstate.b(s);
+ 
+         if (optional.isPresent()) {
+-            this.o = (IBlockData) this.o.set(iblockstate, (Comparable) optional.get());
+-            this.k.put(iblockstate, optional.get());
++            this.o = (IBlockData) this.o.set(iblockstate, (T) optional.get()); // CraftBukkit - decompile error
++            this.k.put(iblockstate, (Comparable) optional.get()); // CraftBukkit - decompile error
+         } else {
+             this.i.setCursor(i);
+             throw ArgumentBlock.e.createWithContext(this.i, this.m.toString(), iblockstate.a(), s);
+@@ -526,7 +526,7 @@
+     private static <T extends Comparable<T>> void a(StringBuilder stringbuilder, IBlockState<T> iblockstate, Comparable<?> comparable) {
+         stringbuilder.append(iblockstate.a());
+         stringbuilder.append('=');
+-        stringbuilder.append(iblockstate.a(comparable));
++        stringbuilder.append(iblockstate.a((T) comparable)); // CraftBukkit - decompile error
+     }
+ 
+     public CompletableFuture<Suggestions> a(SuggestionsBuilder suggestionsbuilder) {

nms-patches/Block.patch

@@ -43,15 +43,6 @@
          }
      }
  
-@@ -646,7 +653,7 @@
-     }
- 
-     public String toString() {
--        return "Block{" + IRegistry.BLOCK.getKey(this) + "}";
-+        return IRegistry.BLOCK.getKey(this).toString(); // CraftBukkit - cheap hack
-     }
- 
-     public static boolean c(Block block) {
 @@ -1395,8 +1402,14 @@
  
      }

src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java

@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.block.data;
 
+import java.util.stream.Collectors;
 import com.google.common.base.Function;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.BiMap;
@@ -12,6 +13,7 @@ import java.util.Map;
 import java.util.Set;
 import net.minecraft.server.ArgumentBlock;
 import net.minecraft.server.Block;
+import net.minecraft.server.BlockDataAbstract;
 import net.minecraft.server.BlockStateBoolean;
 import net.minecraft.server.BlockStateEnum;
 import net.minecraft.server.BlockStateInteger;
@@ -29,7 +31,7 @@ import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 public class CraftBlockData implements BlockData {
 
     private IBlockData state;
-    private Set<IBlockState<?>> parsedStates;
+    private Map<IBlockState<?>, Comparable<?>> parsedStates;
 
     protected CraftBlockData() {
         throw new AssertionError("Template Constructor");
@@ -102,7 +104,7 @@ public class CraftBlockData implements BlockData {
         CraftBlockData clone = (CraftBlockData) this.clone();
         clone.parsedStates = null;
 
-        for (IBlockState parsed : craft.parsedStates) {
+        for (IBlockState parsed : craft.parsedStates.keySet()) {
             clone.state = clone.state.set(parsed, craft.state.get(parsed));
         }
 
@@ -238,7 +240,12 @@ public class CraftBlockData implements BlockData {
 
     @Override
     public String getAsString() {
-        return state.toString();
+        return toString(((BlockDataAbstract) state).b());
+    }
+
+    @Override
+    public String getAsString(boolean hideUnspecified) {
+        return (hideUnspecified && parsedStates != null) ? toString(parsedStates) : getAsString();
     }
 
     @Override
@@ -255,6 +262,29 @@ public class CraftBlockData implements BlockData {
         return "CraftBlockData{" + state.toString() + "}";
     }
 
+    // Mimicked from BlockDataAbstract#toString()
+    public String toString(Map<IBlockState<?>, Comparable<?>> states) {
+        StringBuilder stateString = new StringBuilder(IRegistry.BLOCK.getKey(state.getBlock()).toString());
+
+        if (!states.isEmpty()) {
+            stateString.append('[');
+            stateString.append(states.entrySet().stream().map(STATE_TO_VALUE).collect(Collectors.joining(",")));
+            stateString.append(']');
+        }
+
+        return stateString.toString();
+    }
+
+    // BlockDataAbstract#b. Should PAIL public in future release but is mimicked for now to avoid a decompile error patch
+    private static final Function<Map.Entry<IBlockState<?>, Comparable<?>>, String> STATE_TO_VALUE = (entry) -> {
+        if (entry == null) {
+            return "<NULL>";
+        }
+
+        IBlockState state = entry.getKey();
+        return state.a() + "=" + state.a(entry.getValue());
+    };
+
     @Override
     public boolean equals(Object obj) {
         return obj instanceof CraftBlockData && state.equals(((CraftBlockData) obj).state);
@@ -473,7 +503,7 @@ public class CraftBlockData implements BlockData {
 
         IBlockData blockData;
         Block block = CraftMagicNumbers.getBlock(material);
-        Set<IBlockState<?>> parsed = null;
+        Map<IBlockState<?>, Comparable<?>> parsed = null;
 
         // Data provided, use it
         if (data != null) {
@@ -487,8 +517,8 @@ public class CraftBlockData implements BlockData {
                 ArgumentBlock arg = new ArgumentBlock(reader, false).a(false);
                 Preconditions.checkArgument(!reader.canRead(), "Spurious trailing data");
 
-                blockData = arg.b();
-                parsed = arg.a().keySet();
+                blockData = arg.b(); // PAIL rename getBlockData
+                parsed = arg.a(); // PAIL rename getStateMap
             } catch (CommandSyntaxException ex) {
                 throw new IllegalArgumentException("Could not parse data: " + data, ex);
             }

src/test/java/org/bukkit/BlockDataTest.java

@@ -152,4 +152,21 @@ public class BlockDataTest extends AbstractTestingBase {
         Assert.assertTrue(one.matches(two));
         Assert.assertFalse(two.matches(one));
     }
+
+    @Test
+    public void testGetAsString() {
+        String dataString = "minecraft:chest[facing=east,waterlogged=true]";
+        BlockData data = CraftBlockData.newData(null, dataString);
+
+        Assert.assertThat(data.getAsString(true), is(dataString));
+        Assert.assertThat(data.getAsString(false), is("minecraft:chest[facing=east,type=single,waterlogged=true]"));
+    }
+
+    @Test
+    public void testGetAsString2() {
+        Chest data = (Chest) CraftBlockData.fromData(Blocks.CHEST.getBlockData().set(BlockChest.FACING, EnumDirection.EAST));
+
+        Assert.assertThat(data.getAsString(true), is("minecraft:chest[facing=east,type=single,waterlogged=false]"));
+        Assert.assertThat(data.getAsString(false), is("minecraft:chest[facing=east,type=single,waterlogged=false]"));
+    }
 }