为什么此 E4X 代码不尊重默认命名空间？

发布于 2024-07-11 19:25:56 字数 564 浏览 11 评论 0原文

我正在修改 Firefox 扩展，尝试使用 E4X。然而，我遇到了一个奇怪的问题：

var myXml = <test xmlns="http://test.com">
     Hey
     <inner>
        Guys
      </inner>
   </test>;

var ns = myXml.namespace();

default xml namespace = ns;

this.log(myXml.*::inner);
this.log(myXml.ns::inner);
this.log(myXml.inner);

前两个日志语句打印“Guys”。第三个是空白。这是怎么回事？我已经指定了默认命名空间，它实际上与我在第二条日志语句中使用的完全相同。为什么这不起作用？

Mozilla 的文档表明这应该可行。

原文

I'm hacking around in a Firefox extension, trying to use E4X. However, I've come across a weird problem:

var myXml = <test xmlns="http://test.com">
     Hey
     <inner>
        Guys
      </inner>
   </test>;

var ns = myXml.namespace();

default xml namespace = ns;

this.log(myXml.*::inner);
this.log(myXml.ns::inner);
this.log(myXml.inner);

The first two log statements print "Guys". The third is blank. What's going on? I've specified the default namespace, and it's in fact the exact same thingas I'm using in the second log statement. Why doesn't this work?

Mozilla's documentation suggests this should work.

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