Safe Haskell	None
Language	GHC2021

GHC.HsToCore.Pmc.Desugar

Description

Desugaring step of the Lower Your Guards paper.

Desugars Haskell source syntax into guard tree variants Pm*. In terms of the paper, this module is concerned with Sections 3.1, Figure 4, in particular.

Synopsis

desugarPatBind :: SrcSpan -> Id -> Pat GhcTc -> DsM (PmPatBind Pre)
desugarGRHSs :: SrcSpan -> SDoc -> GRHSs GhcTc (LHsExpr GhcTc) -> DsM (PmGRHSs Pre)
desugarMatches :: [Id] -> NonEmpty (LMatch GhcTc (LHsExpr GhcTc)) -> DsM (PmMatchGroup Pre)
desugarEmptyCase :: Id -> DsM PmEmptyCase

Documentation

desugarPatBind :: SrcSpan -> Id -> Pat GhcTc -> DsM (PmPatBind Pre) Source #

desugarGRHSs :: SrcSpan -> SDoc -> GRHSs GhcTc (LHsExpr GhcTc) -> DsM (PmGRHSs Pre) Source #

desugarMatches :: [Id] -> NonEmpty (LMatch GhcTc (LHsExpr GhcTc)) -> DsM (PmMatchGroup Pre) Source #

Desugar the non-empty Matches of a MatchGroup.

desugarEmptyCase :: Id -> DsM PmEmptyCase Source #