1  /*
     2   * Copyright the original author or authors.
     3   * 
     4   * Licensed under the MOZILLA PUBLIC LICENSE, Version 1.1 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   * 
     8   *      http://www.mozilla.org/MPL/MPL-1.1.html
     9   * 
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  import org.as2lib.core.BasicClass;
    18  
    19  /**
    20   * @author Simon Wacker
    21   */
    22  class org.as2lib.util.MethodUtil extends BasicClass {
    23  	
    24  	/**
    25  	 * Invokes the method with the given name {@code methodName} on the given
    26  	 * {@code scope} using the givne {@code args}.
    27  	 * 
    28  	 * @param methodName the name of the method to invoke on the given {@code scope}
    29  	 * @param scope the scope to invoke the method on
    30  	 * @param args the arguments for the method invocation
    31  	 * @return the result of the method invocation
    32  	 */
    33  	public static function invoke(methodName:String, scope, args:Array) {
    34  		var m:Function = scope[methodName];
    35  		if (m) {
    36  			if (scope.__proto__[methodName] == scope.__proto__.__proto__[methodName]) {
    37  				var s = scope.__proto__.__proto__;
    38  				while (s[methodName] == s.__proto__[methodName]
    39  						&& s.__proto__[methodName] == s.__proto__.__proto__[methodName]) {
    40  					s = s.__proto__;
    41  				}
    42  				s.__as2lib__invoker = function() {
    43  					delete s.__as2lib__invoker;
    44  					return m.apply(super, args);
    45  				};
    46  				return scope.__as2lib__invoker();
    47  			}
    48  			return m.apply(scope, args);
    49  		}
    50  	}
    51  	
    52  	/**
    53  	 * Constructs a new {@code MethodUtil} instance.
    54  	 */
    55  	private function MethodUtil() {
    56  	}
    57  	
    58  }
as2api