49 lines
1.4 KiB
Java
49 lines
1.4 KiB
Java
/*
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* Copyright (C) 2009 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.base;
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import java.lang.ref.WeakReference;
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import com.google.common.annotations.GwtCompatible;
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import net.lax1dude.eaglercraft.v1_8.EagRuntime;
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/**
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* Methods factored out so that they can be emulated differently in GWT.
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*
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* @author Jesse Wilson
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*/
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@GwtCompatible(emulated = true)
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final class Platform {
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private Platform() {
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}
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/** Calls {@link System#nanoTime()}. */
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static long systemNanoTime() {
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return EagRuntime.nanoTime();
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}
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static CharMatcher precomputeCharMatcher(CharMatcher matcher) {
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return matcher.precomputedInternal();
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}
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static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
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WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);
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return ref == null ? Optional.<T>absent() : Optional.of(enumClass.cast(ref.get()));
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}
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}
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