diff options
Diffstat (limited to 'compiler/GHC/Core/TyCo/Rep.hs')
| -rw-r--r-- | compiler/GHC/Core/TyCo/Rep.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/GHC/Core/TyCo/Rep.hs b/compiler/GHC/Core/TyCo/Rep.hs index aa5423d0f6..1e6f2d08ef 100644 --- a/compiler/GHC/Core/TyCo/Rep.hs +++ b/compiler/GHC/Core/TyCo/Rep.hs @@ -1540,12 +1540,15 @@ data UnivCoProvenance | PluginProv String -- ^ From a plugin, which asserts that this coercion -- is sound. The string is for the use of the plugin. + | CorePrepProv -- See Note [Unsafe coercions] in GHC.Core.CoreToStg.Pprep + deriving Data.Data instance Outputable UnivCoProvenance where ppr (PhantomProv _) = text "(phantom)" ppr (ProofIrrelProv _) = text "(proof irrel.)" ppr (PluginProv str) = parens (text "plugin" <+> brackets (text str)) + ppr CorePrepProv = text "(CorePrep)" -- | A coercion to be filled in by the type-checker. See Note [Coercion holes] data CoercionHole @@ -1857,6 +1860,7 @@ foldTyCo (TyCoFolder { tcf_view = view go_prov env (PhantomProv co) = go_co env co go_prov env (ProofIrrelProv co) = go_co env co go_prov _ (PluginProv _) = mempty + go_prov _ CorePrepProv = mempty {- ********************************************************************* * * @@ -1913,6 +1917,7 @@ provSize :: UnivCoProvenance -> Int provSize (PhantomProv co) = 1 + coercionSize co provSize (ProofIrrelProv co) = 1 + coercionSize co provSize (PluginProv _) = 1 +provSize CorePrepProv = 1 {- ************************************************************************ |