On Tuesday, 21 February 2012 at 15:41:58 UTC, deadalnix wrote:
Le 21/02/2012 16:32, Vladimir Panteleev a écrit :
On Tuesday, 21 February 2012 at 15:22:15 UTC, deadalnix wrote:
struct stuff {
private Exception delegate() exceptionBuilder = delegate
Exception() {
return new Exception("foobar");
};
}
The following piece of code trigger a compiler error :
delegate
module.stuff.__dgliteral1 function literals cannot be class
members
Why is that ? Is it a bug or a feature ?
Delegates contain a context pointer. Your delegate literal has
no context.
You can't initialize it with the address of a method, either.
For struct
methods, the context pointer is a pointer to the structure.
You can't
have a .init that contains a pointer to an instance. You
probably want
to use a function literal.
It doesn't work with function either.
But I need delegate here. The default one doesn't require a
context, but isn't it possible to pass null as a context, as
none is needed ? This value can be changer later, and
definitively require to be a delegate.
struct stuff {
private Exception function() exceptionBuilder =
&defaultExceptionBuilder;
private static Exception defaultExceptionBuilder() {
return new Exception("foobar");
};
}
