diff options
Diffstat (limited to 'compiler/GHC/Tc/Types.hs')
| -rw-r--r-- | compiler/GHC/Tc/Types.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/GHC/Tc/Types.hs b/compiler/GHC/Tc/Types.hs index c7a78901f4..506a1f9765 100644 --- a/compiler/GHC/Tc/Types.hs +++ b/compiler/GHC/Tc/Types.hs @@ -676,6 +676,9 @@ We gather three sorts of usage information Coercible solver updates tcg_keep's TcRef whenever it encounters a use of `coerce` that crosses newtype boundaries. + (e) Record fields that are used to solve HasField constraints + (see Note [Unused name reporting and HasField] in GHC.Tc.Instance.Class) + The tcg_keep field is used in two distinct ways: * Desugar.addExportFlagsAndRules. Where things like (a-c) are locally |