Skip to content
GitLab
Projects
Groups
Snippets
Help
Loading...
Help
What's new
10
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Sign in / Register
Toggle navigation
Open sidebar
Glasgow Haskell Compiler
GHC
Issues
Open
48
Closed
125
All
173
New issue
Recent searches
{{formattedKey}}
{{ title }}
{{ help }}
{{name}}
@{{username}}
None
Any
{{name}}
@{{username}}
None
Any
{{name}}
@{{username}}
None
Any
{{name}}
@{{username}}
None
Any
{{name}}
@{{username}}
None
Any
Upcoming
Started
{{title}}
None
Any
Current
{{title}}
None
Any
{{title}}
None
Any
{{title}}
None
Any
{{name}}
Yes
No
Yes
No
{{title}}
{{title}}
None
Any
{{title}}
None
Any
{{title}}
&{{id}}
Created date
Priority
Created date
Last updated
Milestone due date
Due date
Popularity
Label priority
Manual
Weight
Blocking
[Discussion] Integrating DataTypeable, Functor, Foldable, Traversable, Generic and Lift in the `stock` deriving strategy
#19707
· opened
Apr 15, 2021
by
Hécate Moonlight
P
low
T
feature request
deriving
1
7
updated
Apr 16, 2021
Don't suggest turning on `DeriveAnyClass` when an instance cannot be derived
#19692
· opened
Apr 13, 2021
by
syd@cs-syd.eu
P
normal
T
feature request
deriving
2
1
updated
Apr 15, 2021
(Derived) Ord instances generate terrible code
#19445
· opened
Feb 26, 2021
by
Sebastian Graf
T
bug
compiler perf
deriving
pointer tagging
0
updated
Apr 02, 2021
Support overriding "No instance" errors using the default deriving strategy
#19418
· opened
Feb 22, 2021
by
infinity0
T
feature request
deriving
0
updated
Mar 02, 2021
DerivingVia: incorrectly accepts deriving via types with differing runtime representations
#19079
· opened
Dec 16, 2020
by
Zachary Churchill
DerivingVia
P
normal
T
bug
deriving
documentation
newcomer
4
updated
Dec 20, 2020
Deriving multiple classes in standalone (or document this limitation)
#18874
· opened
Oct 22, 2020
by
Julien Debon
T
feature request
deriving
1
1
updated
Nov 08, 2020
Relax inferred context simplification to allow "exotic" contexts for GeneralizedNewtypeDeriving and DerivingVia instances.
#18219
· opened
May 22, 2020
by
Andrew Pritchard
DerivingVia
T
feature request
deriving
0
updated
May 24, 2020
GND generates code that instantiates coerce too much
#18213
· opened
May 21, 2020
by
Ryan Scott
QuantifiedConstraints
deriving
1
5
updated
Oct 31, 2020
ConstrainedClassMethods can trigger un-actionable redundant constraint warnings together with GND
#18148
· opened
May 06, 2020
by
Koz Ross
P
normal
T
bug
deriving
error messages
roles
18
updated
May 22, 2020
DeriveGeneric gets a wrong infix constructor associativity when type is declared in a different module
#18101
· opened
Apr 26, 2020
by
Xia Li-yao
P
normal
T
bug
deriving
generics
incorrect runtime result
0
updated
May 10, 2020
Can't derive TYPE rep instances
#17518
· opened
Nov 26, 2019
by
Icelandjack
T
bug
deriving
documentation
3
updated
Nov 28, 2019
GeneralizedNewtypeDeriving should not require that constructor be in scope
#17328
· opened
Oct 09, 2019
by
Richard Eisenberg
deriving
typechecker
9
updated
Jul 03, 2020
Replace useages of con2tag_* in the deriving code with data2tag#
#17241
· opened
Sep 24, 2019
by
Andreas Klebinger
8.10.2
T
feature request
deriving
4
updated
Feb 09, 2021
-XDerivingVia (and deriving strategies) is under specified in the manual
#17183
· opened
Sep 12, 2019
by
Richard Eisenberg
DerivingVia
T
bug
deriving
documentation
0
updated
Sep 12, 2019
Stock deriving improvements
#17037
· opened
Aug 07, 2019
by
Sophie Taylor
P
normal
T
feature request
deriving
rules
runtime perf
0
updated
Jan 23, 2020
GHC accepts DerivingVia-generated instances that violate functional dependencies
#17013
· opened
Jul 31, 2019
by
Alexis King
FunctionalDependencies
P
normal
deriving
4
updated
Aug 01, 2019
Generic1 deriving should use more coercions
#15969
· opened
Nov 29, 2018
by
David Feuer
5
P
normal
T
bug
Trac import
deriving
generics
runtime perf
4
updated
Jan 23, 2020
Standard deriving should be less conservative when `UndecidableInstances` is enabled
#15868
· opened
Nov 07, 2018
by
edsko@edsko.net
5
P
normal
T
feature request
Trac import
deriving
6
updated
Jul 22, 2019
Add (or document if already exist) ability to derive custom typeclasses via source plugins
#15650
· opened
Sep 17, 2018
by
Dmitrii Kovanikov
8.6.1
5
P
normal
T
feature request
Trac import
deriving
plugins
1
10
updated
Jul 19, 2019
DerivingVia (and perhaps even GND) works badly with DeriveGeneric
#15434
· opened
Jul 24, 2018
by
Hiromi Ishii
9.2.1
5
P
normal
T
bug
Trac import
deriving
6
updated
Jan 23, 2021
Prev
1
2
3
Next