In Perl 6, the default parameter passing is to make a read-only alias
for the caller's lvalue. This means that the function may not change
the caller's variable, but must track changes to it made by other means.
What is the point?
It is a contrivance to illustrate how the variable can be chan
Em Dom, 2009-06-14 às 15:53 -0500, John M. Dlugosz escreveu:
> In Perl 6, the default parameter passing is to make a read-only alias
> for the caller's lvalue. This means that the function may not change
> the caller's variable, but must track changes to it made by other means.
> What is the poi
Daniel Ruoso daniel-at-ruoso.com |Perl 6| wrote:
Actually, it only looks complicated while you think only on the callee
side.
No, in general it requires introducing a read-only proxy in front of the
container. This may be optimized away when it can be tracked at
compile-time, but that's certa
