Top-level RecordWildCards no longer working.
$ ghc -fforce-recomp /tmp/Damn.hs /tmp/T.hs
[1 of 2] Compiling Damn ( /tmp/Damn.hs, /tmp/Damn.o )
[2 of 2] Compiling T ( /tmp/T.hs, /tmp/T.o )
/tmp/T.hs:7:5: warning: [-Wmissing-fields]
• Fields of ‘D.D’ not initialised: x, y
• In the expression: D.D {..}
In an equation for ‘d’: d = D.D {..}
|
7 | d = D.D {..}
| ^^^^^^^^
$ cat /tmp/Damn.hs /tmp/T.hs
module Damn (D(..)) where
data D = D { x :: Int, y :: () }
{-# LANGUAGE RecordWildCards #-}
module T where
import qualified Damn as D
d :: D.D
d = D.D {..}
x :: Int
x = 7
y :: ()
y = ()
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.2.1
Meanwhile on 8.0
$ ghc -Wall -fforce-recomp /tmp/Damn.hs /tmp/T.hs
[1 of 2] Compiling Damn ( /tmp/Damn.hs, /tmp/Damn.o )
[2 of 2] Compiling T ( /tmp/T.hs, /tmp/T.o )
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.0.2
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |