Record fields not defined with pattern synonym in ghci
Another thing discovered while in the air: When you define pattern synonyms with record syntax, the fields aren't defined in GHCI:
$ ghci -ignore-dot-ghci -XPatternSynonyms
GHCi, version 8.1.20160419: http://www.haskell.org/ghc/ :? for help
Prelude> pattern Point {x, y} = (x, y)
Prelude> :t x
<interactive>:1:1: error: Variable not in scope: x
Prelude>
Works fine when imported from a file.
Trac metadata
Trac field | Value |
---|---|
Version | 8.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |