org.teavm.platform.PlatformQueue Maven / Gradle / Ivy
/*
* Copyright 2015 Alexey Andreev.
*
* 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 org.teavm.platform;
import org.teavm.backend.javascript.spi.InjectedBy;
import org.teavm.dependency.PluggableDependency;
import org.teavm.jso.JSObject;
import org.teavm.jso.JSProperty;
import org.teavm.platform.plugin.PlatformQueueGenerator;
public abstract class PlatformQueue implements JSObject {
@JSProperty
public abstract int getLength();
public final boolean isEmpty() {
return getLength() == 0;
}
abstract void push(PlatformObject obj);
abstract PlatformObject shift();
public void add(T e) {
push(wrap(e));
}
public T remove() {
return unwrap(shift());
}
private static PlatformObject wrap(Object obj) {
return Platform.getPlatformObject(obj);
}
@InjectedBy(PlatformQueueGenerator.class)
@PluggableDependency(PlatformQueueGenerator.class)
private static native S unwrap(PlatformObject obj);
}