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Glasgow Haskell Compiler
GHC
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22
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TypeError is fragile
#11391
· opened
Jan 09, 2016
by
Ben Gamari
8.0.1
P::high
Trac import
bug
custom type errors
error messages
typechecker
7
CLOSED
8
updated
Jul 07, 2019
Type families, `TypeError`, and `-fdefer-type-errors` cause "opt_univ fell into a hole"
#12104
· opened
May 23, 2016
by
antalsz
8.2.1
P::high
Trac import
TypeFamilies
bug
compiler crash
custom type errors
7
CLOSED
11
updated
Jul 07, 2019
Can't create injective type family equation with TypeError as the RHS
#12119
· opened
May 25, 2016
by
Ryan Scott
P::normal
Trac import
TypeFamilies
custom type errors
feature request
injective type families
typechecker
5
CLOSED
9
updated
Jul 07, 2019
Constraint resolution vs. type family resolution vs. TypeErrors
#12237
· opened
Jun 28, 2016
by
cactus
P::normal
Trac import
custom type errors
feature request
5
CLOSED
3
updated
Jul 07, 2019
GHC 8.2.1 regression when combining GND with TypeError (solveDerivEqns: probable loop)
#14339
· opened
Oct 10, 2017
by
Ryan Scott
8.2.2
P::high
Trac import
bug
compiler crash
custom type errors
deriving
typechecker
7
CLOSED
6
updated
Jul 07, 2019
DeriveAnyClass instances may skip TypeError constraints
#15052
· opened
Apr 18, 2018
by
Daniel Gorín
8.6.1
P::normal
Trac import
bug
custom type errors
5
CLOSED
14
updated
Jul 07, 2019
TypeError is reported as "redundant constraint" starting with GHC 8.2
#15232
· opened
Jun 05, 2018
by
fsoikin
8.6.1
P::normal
Trac import
bug
custom type errors
error messages
5
CLOSED
1
updated
Jul 07, 2019
Deriving a class via an instance that has a TypeError constraint using standalone deriving fails during compilation.
#16362
· opened
Feb 24, 2019
by
j9794
P::normal
Trac import
bug
custom type errors
5
CLOSED
7
updated
Jul 07, 2019
`TypeError` in a pattern should flag inaccessible code
#16377
· opened
Mar 01, 2019
by
Iavor S. Diatchki
P::normal
Trac import
bug
custom type errors
typechecker
5
CLOSED
2
updated
Jul 07, 2019