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Bug 6267 – Regression(2.054 beta): Can't increment alias this'd struct from ref return

Status: RESOLVED
Resolution: FIXED
Severity: regression
Priority: P2
Component: dmd
Product: D
Version: D2
Platform: Other
OS: All
Creation time: 2011-07-07T15:47:00Z
Last change time: 2011-07-10T07:40:10Z
Keywords: patch, rejects-valid
Assigned to: nobody
Creator: dsimcha

Comments

Comment #0 by dsimcha — 2011-07-07T15:47:41Z

2.054 beta regression. struct Double1 { double val = 1; alias val this; } struct DNAHash(T) { T[] data; this(ubyte width) {} ref T opIndex(S)(S seq) { return data[0]; } } void main() { auto hash = DNAHash!(Double1)(2); hash["f"]++; } test9.d(18): Error: var has no effect in expression (__pitmp5)

Comment #1 by kennytm — 2011-07-08T00:21:40Z

The bug was introduced in commit b3df2 when fixing issue 5551. https://github.com/D-Programming-Language/dmd/commit/b3df2

Comment #2 by yebblies — 2011-07-09T22:48:37Z

https://github.com/D-Programming-Language/dmd/pull/225

Comment #3 by yebblies — 2011-07-10T07:40:10Z

https://github.com/D-Programming-Language/dmd/commit/5f6f697a4287494a6e8ae4f84bd5e7d28a115e1a