com.google.gwt.emul.javaemul.internal.JsUtils Maven / Gradle / Ivy
/*
* Copyright 2015 Google Inc.
*
* 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 javaemul.internal;
import javaemul.internal.annotations.DoNotAutobox;
import javaemul.internal.annotations.UncheckedCast;
import jsinterop.annotations.JsMethod;
/**
* Provides an interface for simple JavaScript idioms that can not be expressed in Java.
*/
@SuppressWarnings("unusable-by-js")
public class JsUtils {
@JsMethod(namespace = "", name = "Date.now")
public static native double getTime();
@JsMethod(namespace = "")
public static native int parseInt(String s, int radix);
@JsMethod(namespace = "", name = "typeof")
public static native String typeOf(Object obj);
public static native boolean isUndefined(Object value) /*-{
return value === undefined;
}-*/;
public static native double unsafeCastToDouble(Object number) /*-{
return number;
}-*/;
public static native boolean unsafeCastToBoolean(Object bool) /*-{
return bool;
}-*/;
@UncheckedCast
public static native T uncheckedCast(@DoNotAutobox Object o) /*-{
return o;
}-*/;
@UncheckedCast
public static native T getProperty(Object map, String key) /*-{
return map[key];
}-*/;
public static native void setProperty(Object map, String key, Object value) /*-{
map[key] = value;
}-*/;
}