Initial Commit

build/tmp/.cache/expanded/zip_fefaf6f080a446b79f27db9320f9a65b/net/minecraft/Optionull.java

@@ -0,0 +1,74 @@
+package net.minecraft;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.function.Function;
+import java.util.function.Supplier;
+import javax.annotation.Nullable;
+
+public class Optionull {
+   @Nullable
+   public static <T, R> R map(@Nullable T pValue, Function<T, R> pMapper) {
+      return (R)(pValue == null ? null : pMapper.apply(pValue));
+   }
+
+   public static <T, R> R mapOrDefault(@Nullable T pValue, Function<T, R> pMapper, R pDefaultValue) {
+      return (R)(pValue == null ? pDefaultValue : pMapper.apply(pValue));
+   }
+
+   public static <T, R> R mapOrElse(@Nullable T pValue, Function<T, R> pMapper, Supplier<R> pSupplier) {
+      return (R)(pValue == null ? pSupplier.get() : pMapper.apply(pValue));
+   }
+
+   @Nullable
+   public static <T> T first(Collection<T> pCollection) {
+      Iterator<T> iterator = pCollection.iterator();
+      return (T)(iterator.hasNext() ? iterator.next() : null);
+   }
+
+   public static <T> T firstOrDefault(Collection<T> pCollection, T pDefaultValue) {
+      Iterator<T> iterator = pCollection.iterator();
+      return (T)(iterator.hasNext() ? iterator.next() : pDefaultValue);
+   }
+
+   public static <T> T firstOrElse(Collection<T> pCollection, Supplier<T> pSupplier) {
+      Iterator<T> iterator = pCollection.iterator();
+      return (T)(iterator.hasNext() ? iterator.next() : pSupplier.get());
+   }
+
+   public static <T> boolean isNullOrEmpty(@Nullable T[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable boolean[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable byte[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable char[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable short[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable int[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable long[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable float[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+
+   public static boolean isNullOrEmpty(@Nullable double[] pArray) {
+      return pArray == null || pArray.length == 0;
+   }
+}