possible mixin template bug?

Kenji Hara k.hara.pg at gmail.com
Mon Sep 23 05:08:27 PDT 2013


The symbols that are introduced by mixin template never override/conflict
with the formally defined symbols.
It's a designed behavior.

Kenji Hara


2013/9/23 growler <growlercab at gmail.com>

> This compiles and runs but I think it is a bug.
> ---
> import std.stdio;
> mixin template TestMixin(T) {
>     int testMixin;
> }
> struct Test {
>     int testMixin;
>     mixin TestMixin!Test;
> }
> void main() {
>     Test t;
>     t.testMixin = 10;
>     writefln("%s", t);
> }
> ---
> $ ./hack
> Test(10, 0)
>
> I can also change the struct to be:
> ---
> struct Test {
>    string testMixin;
>    mixin TestMixin!Test;
> }
> // and the assignment in main() to
> t.testMixin = "some string";
> ---
> $ ./hack
> Test("some string", 0)
>
> so whether this is a bug or not, I think it is bad. Any thoughts?
>
> G.
>
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