http://d.puremagic.com/issues/show_bug.cgi?id=8813
--- Comment #1 from Kenji Hara <k.hara...@gmail.com> 2012-10-14 20:50:28 PDT ---
(In reply to comment #0)
> This code doesn't work:
> -----------------------
> void main()
> {
> auto dg = delegate() const { }; // NG
> }
> -----------------------
In current, the semantics about qualified nested function (==lambda literal) is
not defined in language spec. Compiler assumes that the frame pointer of nested
function is always mutable.
> And, I do not know whether a cause is the same as this problem... This code
> doesn't work, too.
> -----------------------
> import std.traits;
> void main()
> {
> static assert(is(FunctionTypeOf!(void delegate() const) == const)); // NG
>
> alias void delegate() const DG; // OK
> static assert(is(FunctionTypeOf!DG == const)); // OK
> }
> -----------------------
This is a parser bug and a rest of issue 4838.
I've separated it to bug 8822.
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