I'd submitted https://issues.dlang.org/show_bug.cgi?id=4130 which is
related to issues with shared values assignment.
Consider:
struct S { long a, b, c; ... }
Should it be safe to assign one S to another? I guess not because
assignment would violate whatever invariant a, b, and c may hold, and
there's too much state to be assigned atomically. Somewhat sadly, this
code does compile:
shared S s1, s2;
s1 = s2;
However, assigning Variant objects holding such structs does not
compile, which in turn leads to the reported bug in std.concurrency. Now
it seems to me that the only way is to adapt Variant to allow such
assignments, otherwise we'd be breaking existing code. Thoughts appreciated.
Andrei
