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Bug 2481 – mixing field into anonymous struct inside class generates field overlapping vtable

Status: RESOLVED
Resolution: FIXED
Severity: major
Priority: P2
Component: dmd
Product: D
Version: D2
Platform: x86
OS: Linux
Creation time: 2008-11-30T13:11:00Z
Last change time: 2015-06-09T05:11:39Z
Keywords: wrong-code
Assigned to: nobody
Creator: tomas

Comments

Comment #0 by tomas — 2008-11-30T13:11:29Z

template M() { int i; } class Z { struct { mixin M!(); } } void main() { Z z; writefln(z.i.offsetof); } // output: 0 dmd uses offset=0 internally, meaning that if 'i' is written to, the vtable is overwritten.

Comment #1 by tomas — 2008-11-30T13:16:08Z

same problem happens if an anonymous union block is used instead

Comment #2 by github-bugzilla — 2013-11-16T00:59:14Z

Commit pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/ea2cde750b4619a579df5ef309210ea9c0d1e734 fix Issue 2481 - mixing field into anonymous struct inside class generates field overlapping vtable

Comment #3 by k.hara.pg — 2013-11-16T02:03:30Z

Worksforme in D2 with test case, and D1 is not supported anymore.