https://issues.dlang.org/show_bug.cgi?id=15726
Issue ID: 15726
Summary: forward reference error for circular classes,
RefCounted
Product: D
Version: D2
Hardware: x86
OS: Mac OS X
Status: NEW
Severity: major
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
The code below fails to compile with the following error:
/usr/local/Cellar/dmd/2.070.1-b1_1/include/dlang/dmd/object.d(2762): Error:
struct bug.Statement!int.Statement.Payload no size yet for forward reference
It's an issue involving circular struct references and RefCounted (with a
reduced version below). Possible related issues: 12000, 14390
The failing PR found via digger:
https://github.com/D-Programming-Language/dmd/pull/4457
Here is the failing code:
struct RefCounted(T) {
struct Impl {
T _payload;
}
Impl* _store;
~this() {
destroy(_store._payload);
}
}
struct Connection(T) {
alias Statement = .Statement!T;
}
struct Statement(T) {
alias Connection = .Connection!T;
struct Payload {
Connection con;
}
RefCounted!Payload Data;
}
Connection!int x;
--