Hi!
I'm trying to make threads communicate by sending an immutable
address book to each thread.
Code:
Tid[string] addressBook;
addressBook["Some"] = sdfsdf;
addressBook["Input"] = sdfsdf;
auto sharedAddressBook =
cast(immutable(Tid[string]))(addressBook);
send(tid, sharedAddressBook); // <- error
Output log:
C:\D\dmd2\windows\bin\..\..\src\phobos\std\variant.d(439): Error:
cannot modify immutable expression (*zis)[args[1].get()]
C:\D\dmd2\windows\bin\..\..\src\phobos\std\variant.d(632): Error:
template instance
std.variant.VariantN!20LU.VariantN.handler!(immutable(int[immutable(string)])) error instantiating
C:\D\dmd2\windows\bin\..\..\src\phobos\std\variant.d(548):
instantiated from here:
opAssign!(immutable(int[immutable(string)]))
C:\D\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(117):
instantiated from here:
__ctor!(immutable(int[immutable(string)]))
C:\D\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(639):
instantiated from here:
__ctor!(immutable(int[immutable(string)]))
C:\D\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(629):
... (1 instantiations, -v to show) ...
C:\D\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(605):
instantiated from here:
_send!(immutable(int[immutable(string)]))
src\aelia\aelia.d(42): instantiated from here:
send!(immutable(int[immutable(string)]))
Building build\x64\Debug\AeliaD.exe failed!
variant.d:
...
else static if (isAssociativeArray!(A))
{
(*zis)[args[1].get!(typeof(A.init.keys[0]))] // <- line 439
= args[0].get!(typeof(A.init.values[0]));
break;
}
...
What am I doing wrong? Is there a proper way to pass an
associative array to another thread?
I also found a thread on the forum
http://forum.dlang.org/post/mailman.209.1348312788.5162.digitalmars-d-le...@puremagic.com
that saying it is a bug in Variant, but that bug was fixed
already. Have I found a new one? %)
Sincerely,
Alexey
