www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.learn - alias class

reply Ary Manzana <ary esperanto.org.ar> writes:
Hello.

While trying to get some piece of parser code be covered by tests (I'm 
translating the DMD parser to Java) I found that this is possible:

---
alias class Foo {
}

typedef class Bar {
}
---

What those attributes in a class suppose to mean? Just curiosity.
Nov 12 2006
parent reply Hasan Aljudy <hasan.aljudy gmail.com> writes:
Ary Manzana wrote:
 Hello.
 
 While trying to get some piece of parser code be covered by tests (I'm 
 translating the DMD parser to Java) I found that this is possible:
 
 ---
 alias class Foo {
 }
 
 typedef class Bar {
 }
 ---
 
 What those attributes in a class suppose to mean? Just curiosity.

The grammar for alias and typedef is alias Declaration I don't know what the above means, I think it's not legal D code, I think the compiler would complain about it, but, at the semantic pass. At least that's what I have assumed.
Nov 12 2006
parent jcc7 <technocrat7 gmail.com> writes:
== Quote from Hasan Aljudy (hasan.aljudy gmail.com)'s article
 Ary Manzana wrote:
 Hello.

 While trying to get some piece of parser code be covered by tests (I'm
 translating the DMD parser to Java) I found that this is possible:

 ---
 alias class Foo {
 }

 typedef class Bar {
 }
 ---

 What those attributes in a class suppose to mean? Just curiosity.

alias Declaration I don't know what the above means, I think it's not legal D code, I think the compiler would complain about it, but, at the semantic pass. At least that's what I have assumed.

I don't know what this code is supposed to mean, but it seems to compile and run: import std.stdio : writefln; alias class Foo {} typedef class Bar {} void main() { Foo c = new Foo(); writefln("Looks like nonsense to me, but the compiler doesn't mind."); }
Nov 13 2006