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digitalmars.D.learn - Template mixin / unresolved external / scope problem?

reply =?iso-8859-1?Q?Robert_M._M=FCnch?= <robert.muench saphirion.com> writes:
I have:

a.d:
extern (C) void myFuncA();

void myFuncB() {
	myFuncA();
}

b.d:
public import a;

mixin template MYFUNCA() {
	extern (C) void myFuncA() {...}
}

c.d:
import b;

mixin MYFUNCA;
...further code...


Compiling such a structure gives me an unresolved external in a.d/myFuncB

I assume this is because the mixin get's it's own scope. Is this 
correct? How can I solve such a setup?

-- 
Robert M. Münch
http://www.saphirion.com
smarter | better | faster
Nov 28 2019
parent reply Jacob Carlborg <doob me.com> writes:
On 2019-11-28 16:40, Robert M. Münch wrote:

 I have:
 
 a.d:
 extern (C) void myFuncA();
 
 void myFuncB() {
      myFuncA();
 }
 
 b.d:
 public import a;
 
 mixin template MYFUNCA() {
      extern (C) void myFuncA() {...}
 }
 
 c.d:
 import b;
 
 mixin MYFUNCA;
 ...further code...
 
 
 Compiling such a structure gives me an unresolved external in a.d/myFuncB
 
 I assume this is because the mixin get's it's own scope. Is this 
 correct? How can I solve such a setup?


Are you using the latest version, 2.089.0? It might be fixed in that 
version [1].

[1] https://dlang.org/changelog/2.089.0.html#mixin_template_mangling

-- 
/Jacob Carlborg
Nov 28 2019
parent =?iso-8859-1?Q?Robert_M._M=FCnch?= <robert.muench saphirion.com> writes:
On 2019-11-28 16:36:36 +0000, Jacob Carlborg said:


 Are you using the latest version, 2.089.0? It might be fixed in that 
 version [1].
 
 [1] https://dlang.org/changelog/2.089.0.html#mixin_template_mangling


Ha! Thanks Jacob, that looks like the root-cause. Didn't expect to use 
a feature which was just fixe in the newest compiler release...

Using it now, but 2.089 broke some code using CAS... need to take a 
look into it first before I can tell if it works with the template 
mixin.

Thanks.

-- 
Robert M. Münch
http://www.saphirion.com
smarter | better | faster
Nov 29 2019