Update #0 - First Release

sources/main/java/com/google/common/base/Platform.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2009 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.common.base;
+
+import java.lang.ref.WeakReference;
+
+import com.google.common.annotations.GwtCompatible;
+
+/**
+ * Methods factored out so that they can be emulated differently in GWT.
+ *
+ * @author Jesse Wilson
+ */
+@GwtCompatible(emulated = true)
+final class Platform {
+	private Platform() {
+	}
+
+	/** Calls {@link System#nanoTime()}. */
+	static long systemNanoTime() {
+		return System.nanoTime();
+	}
+
+	static CharMatcher precomputeCharMatcher(CharMatcher matcher) {
+		return matcher.precomputedInternal();
+	}
+
+	static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
+		WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);
+		return ref == null ? Optional.<T>absent() : Optional.of(enumClass.cast(ref.get()));
+	}
+}