From 150bedb37750e80d598f7072f55ce7487e257216 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 26 Mar 2016 11:25:42 +0000
Subject: Remove more usages of Guava collections

---
 .../zwobble/mammoth/internal/util/MammothSets.java | 23 ++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

(limited to 'src/main/java/org/zwobble/mammoth/internal/util/MammothSets.java')

diff --git a/src/main/java/org/zwobble/mammoth/internal/util/MammothSets.java b/src/main/java/org/zwobble/mammoth/internal/util/MammothSets.java
index a9658ce..87f7bbe 100644
--- a/src/main/java/org/zwobble/mammoth/internal/util/MammothSets.java
+++ b/src/main/java/org/zwobble/mammoth/internal/util/MammothSets.java
@@ -1,15 +1,30 @@
 package org.zwobble.mammoth.internal.util;
 
-import com.google.common.collect.ImmutableSet;
-
+import java.util.Collections;
+import java.util.HashSet;
 import java.util.Set;
+import java.util.stream.Collectors;
+
+import static java.util.Arrays.asList;
+import static org.zwobble.mammoth.internal.util.MammothIterables.stream;
 
 public class MammothSets {
     public static <T> Set<T> set() {
-        return ImmutableSet.of();
+        return Collections.emptySet();
     }
 
     public static <T> Set<T> set(T value1) {
-        return ImmutableSet.of(value1);
+        return Collections.singleton(value1);
+    }
+
+    @SafeVarargs
+    public static <T> Set<T> set(T... values) {
+        HashSet<T> set = new HashSet<>();
+        set.addAll(asList(values));
+        return set;
+    }
+
+    public static <T> Set<T> toSet(Iterable<T> iterable) {
+        return stream(iterable).collect(Collectors.toSet());
     }
 }
-- 
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