如何Valas闭包映射到Genie？

问题描述

有一个。

  Bus.own_name （BusType.SESSION，org.example.DemoService，/ *要注册的名称* / 
 BusNameOwnerFlags.NONE，/ * flags * / 
 on_bus_aquired，/ *注册成功时的回调函数* / 
（）=> {}，/ *名称注册的回调成功* / 
（）=> stderr.printf（Could not acquire name\ / * callback on name lost * / 
  

我试图在Genie中重写这个代码，管理转换最后两行。 只有。

  f.my_event + = def（t，a）
 print检测到值为％d的事件，a 
  

如何在Genie的方法调用中使用匿名方法定义？

解决方案

我认为没有办法。您必须使用def调用另一个进程。

  Bus.own_name（BusType.SESSION，org.example.DemoService 
 BusNameOwnerFlags.NONE，
 on_bus_aquired，
 reg，
 err）; 
 
 def reg（）
 pass 
 
 def err（）
 printerror
  pre> 
The Vala Tutorial has an example about DBus using anonymous methods.
Bus.own_name (BusType.SESSION, "org.example.DemoService", /* name to register */
              BusNameOwnerFlags.NONE, /* flags */
              on_bus_aquired, /* callback function on registration succeeded */
              () => {}, /* callback on name register succeeded */
              () => stderr.printf ("Could not acquire name\n")); /* callback on name lost */
I am trying to rewrite this code in Genie, but could not manage to convert the two last lines. The Genie Tutorial only has an example on how to use a closure to define an event handler.
f.my_event += def (t, a)
    print "event was detected with value %d", a
How do I use anonymous method definitions in a method call with Genie?
 解决方案 
I think there is not way. You must call another process using "def".
Bus.own_name (BusType.SESSION, "org.example.DemoService", 
          BusNameOwnerFlags.NONE, 
          on_bus_aquired, 
          reg,
          err);

def reg()
    pass

def err()
    print "error"
                        
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