On Sunday, 10 July 2016 at 07:20:29 UTC, Meta wrote:
On Friday, 8 July 2016 at 09:01:10 UTC, Marc Schütz wrote:
`foo()` is effectively a delegate, therefore `const` applies
to the context.
AFAIK const on a function can only ever refer to the `this`
pointer, but there is no `this` pointer.
When there's no "this" pointer DMD emitts a message. If to your
eyes there is no "this" pointer then there should be a message
for this case.
This is also how I see the whole thing. Initially I had the
intuition that "const" in this case is pointless (but >>only<<
because the local proc. cannot be called from elsewhere than the
parent function).
The problem with "noop attributes" is that they tend to confuse
new comers. There is other cases in D, notably when one declares
a static function in the global scope.
Such "noop attributes" should be detected by the compiler. What
if some day you, at Dlang, decide to give a semantic to those
cases while users code already use them ?
(please don't answer "Dfix", this is just as a matter of
principle that i talk about this).
