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/*
* Copyright 2010 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 com.google.gwt.core.client;
/**
* A simple wrapper around an heterogeneous native array of values.
*
* This class may not be directly instantiated, and can only be returned from a
* native method. For example,
*
*
* native JsArrayMixed getNativeArray() /*-{
* return [
* { x: 0, y: 1},
* "apple",
* 12345,
* ];
* }-* /;
*
*/
public class JsArrayMixed extends JavaScriptObject {
protected JsArrayMixed() {
}
/**
* Gets the boolean at a given index.
*
* @param index the index to be retrieved
* @return the object at the given index coerced to boolean.
*/
public final native boolean getBoolean(int index) /*-{
return !!this[index];
}-*/;
/**
* Gets the double at a given index.
*
* @param index the index to be retrieved
* @return the object at the given index coerced to number.
*/
public final native double getNumber(int index) /*-{
return +this[index];
}-*/;
/**
* Gets the {@link JavaScriptObject} at a given index.
*
* @param index the index to be retrieved
* @return the {@code JavaScriptObject} at the given index, or
* null
if none exists
*/
public final native T getObject(int index) /*-{
return this[index] != null ? Object(this[index]) : null;
}-*/;
/**
* Gets the String at a given index.
*
* @param index the index to be retrieved
* @return the object at the given index, or null
if none exists
*/
public final native String getString(int index) /*-{
var value = this[index];
return value == null ? null : String(value);
}-*/;
/**
* Convert each element of the array to a String and join them with a comma
* separator. The value returned from this method may vary between browsers
* based on how JavaScript values are converted into strings.
*/
public final String join() {
// As per JS spec
return join(",");
}
/**
* Convert each element of the array to a String and join them with a comma
* separator. The value returned from this method may vary between browsers
* based on how JavaScript values are converted into strings.
*/
public final native String join(String separator) /*-{
return this.join(separator);
}-*/;
/**
* Gets the length of the array.
*
* @return the array length
*/
public final native int length() /*-{
return this.length;
}-*/;
/**
* Pushes the given boolean onto the end of the array.
*/
public final native void push(boolean value) /*-{
this[this.length] = value;
}-*/;
/**
* Pushes the given double onto the end of the array.
*/
public final native void push(double value) /*-{
this[this.length] = value;
}-*/;
/**
* Pushes the given {@link JavaScriptObject} onto the end of the array.
*/
public final native void push(JavaScriptObject value) /*-{
this[this.length] = value;
}-*/;
/**
* Pushes the given String onto the end of the array.
*/
public final native void push(String value) /*-{
this[this.length] = value;
}-*/;
/**
* Sets the boolean value at a given index.
*
* If the index is out of bounds, the value will still be set. The array's
* length will be updated to encompass the bounds implied by the added value.
*
* @param index the index to be set
* @param value the boolean to be stored
*/
public final native void set(int index, boolean value) /*-{
this[index] = value;
}-*/;
/**
* Sets the double value at a given index.
*
* If the index is out of bounds, the value will still be set. The array's
* length will be updated to encompass the bounds implied by the added value.
*
* @param index the index to be set
* @param value the double to be stored
*/
public final native void set(int index, double value) /*-{
this[index] = value;
}-*/;
/**
* Sets the object value at a given index.
*
* If the index is out of bounds, the value will still be set. The array's
* length will be updated to encompass the bounds implied by the added object.
*
* @param index the index to be set
* @param value the {@link JavaScriptObject} to be stored
*/
public final native void set(int index, JavaScriptObject value) /*-{
this[index] = value;
}-*/;
/**
* Sets the String value at a given index.
*
* If the index is out of bounds, the value will still be set. The array's
* length will be updated to encompass the bounds implied by the added String.
*
* @param index the index to be set
* @param value the String to be stored
*/
public final native void set(int index, String value) /*-{
this[index] = value;
}-*/;
/**
* Reset the length of the array.
*
* @param newLength the new length of the array
*/
public final native void setLength(int newLength) /*-{
this.length = newLength;
}-*/;
/**
* Shifts the first value off the array.
*
* @return the shifted item coerced to a boolean
*/
public final native boolean shiftBoolean() /*-{
return !!this.shift();
}-*/;
/**
* Shifts the first value off the array.
*
* @return the shifted item coerced to a number
*/
public final native double shiftNumber() /*-{
return +this.shift();
}-*/;
/**
* Shifts the first value off the array.
*
* @return the shifted {@link JavaScriptObject}
*/
public final native T shiftObject() /*-{
return Object(this.shift());
}-*/;
/**
* Shifts the first value off the array.
*
* @return the shifted String
*/
public final native String shiftString() /*-{
return String(this.shift());
}-*/;
/**
* Shifts a boolean onto the beginning of the array.
*
* @param value the value to the stored
*/
public final native void unshift(boolean value) /*-{
this.unshift(value);
}-*/;
/**
* Shifts a double onto the beginning of the array.
*
* @param value the value to store
*/
public final native void unshift(double value) /*-{
this.unshift(value);
}-*/;
/**
* Shifts a {@link JavaScriptObject} onto the beginning of the array.
*
* @param value the value to store
*/
public final native void unshift(JavaScriptObject value) /*-{
this.unshift(value);
}-*/;
/**
* Shifts a String onto the beginning of the array.
*
* @param value the value to store
*/
public final native void unshift(String value) /*-{
this.unshift(value);
}-*/;
}