AS3.0中自定义matedata

news/2024/7/6 6:26:49

metadata就是元数据,反应一个类本质的属性,可以通过describeType（obj）来得到反应该对象的xml.

要自定义元数据，如[MyMatedata()]:

 1 package {
 2     public class MyClass extends Object{
 3         [MyMatedata(name="ha",name2="haha2")]
 4          public var a:String;
 5          public function MyClass(){
 6             super();
 7          }
 8          public function getA():void{
 9             trace("dd");
10          }
11     }
12 }

describeType(new MyClass())返回：

 1 <type name="MyClass" base="Object" isDynamic="false" isFinal="false" isStatic="false">
 2   <extendsClass type="Object"/>
 3   <variable name="a" type="String">
 4     <metadata name="MyMatedata">---------------------------------->自定义元数据
 5       <arg key="name" value="ha"/>
 6       <arg key="name2" value="haha2"/>
 7     </metadata>
 8     <metadata name="__go_to_definition_help">
 9       <arg key="pos" value="108"/>
10     </metadata>
11   </variable>
12   <method name="getA" declaredBy="MyClass" returnType="void">
13     <metadata name="__go_to_definition_help">
14       <arg key="pos" value="189"/>
15     </metadata>
16   </method>
17   <metadata name="__go_to_ctor_definition_help">
18     <arg key="pos" value="137"/>
19   </metadata>
20   <metadata name="__go_to_definition_help">
21     <arg key="pos" value="26"/>
22   </metadata>
23 </type>