Template mixin statements?

[H. S. Teoh]

On Fri, Jan 18, 2019 at 11:07:10AM +0000, NaN via Digitalmars-d wrote:
> Template mixins can only mixin declarations. Was it ever considered to
> allow them to mixin statements? Is it ever likely to be added? Or are
> there reasons it wasnt allowed?
> 
> Thanks.

I don't remember the rationale for this, but if you want to mixin
statements, you can use the Do template in the following workaround:

	import std.stdio;
	mixin template Do(alias fun) {
		int _dummy = { fun(); return 0; }();
	}
	
	mixin template MyMixin() {
		string strDecl = "abc";
		mixin Do!({ writeln("look ma, a statement!"); });
		int intDecl = 123;
		mixin Do!({ writeln("look ma, another statement!"); });
	}
	
	void main() {
		mixin MyMixin!();
		writeln(strDecl);
		writeln(intDecl);
	}

It's a bit ugly, but it works.


T

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