[Issue 9831] Error message with failed lambda inference

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=9831



--- Comment #5 from bearophile_hugs at eml.cc 2013-11-17 05:34:46 PST ---
(In reply to comment #3)

> What makes you think the first case is valid?
> 
> void main() {
>     immutable int c; // immutable local variable
>     int function(int x) func;
>     func = x => c; // needs context to access c
> }
> 
> What exactly would you expect to happen?

Right, I was wrong, sorry.


(In reply to comment #4)

> the op code should produce "__lambda1 cannot access frame of function D main"
> error, because required type is function pointer, not delegate.
> 
> https://github.com/D-Programming-Language/dmd/pull/2798

Thank you, the new error message is good and helps me avoid similar mistakes.

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