| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
GHC.HsToCore.Pmc.Utils
Description
Utility module for the pattern-match coverage checker.
Synopsis
- tracePm :: String -> SDoc -> DsM ()
- traceWhenFailPm :: String -> SDoc -> MaybeT DsM a -> MaybeT DsM a
- mkPmId :: Type -> DsM Id
- allPmCheckWarnings :: [WarningFlag]
- overlapping :: DynFlags -> HsMatchContext id -> Bool
- exhaustive :: DynFlags -> HsMatchContext id -> Bool
- redundantBang :: DynFlags -> Bool
- exhaustiveWarningFlag :: HsMatchContext id -> Maybe WarningFlag
- isMatchContextPmChecked :: DynFlags -> Origin -> HsMatchContext id -> Bool
- isMatchContextPmChecked_SinglePat :: DynFlags -> Origin -> HsMatchContext id -> LPat GhcTc -> Bool
- needToRunPmCheck :: DynFlags -> Origin -> Bool
Documentation
allPmCheckWarnings :: [WarningFlag] Source #
All warning flags that need to run the pattern match checker.
overlapping :: DynFlags -> HsMatchContext id -> Bool Source #
Check whether the redundancy checker should run (redundancy only)
exhaustive :: DynFlags -> HsMatchContext id -> Bool Source #
Check whether the exhaustiveness checker should run (exhaustiveness only)
redundantBang :: DynFlags -> Bool Source #
Check whether unnecessary bangs should be warned about
exhaustiveWarningFlag :: HsMatchContext id -> Maybe WarningFlag Source #
Denotes whether an exhaustiveness check is supported, and if so,
via which WarningFlag it's controlled.
Returns Nothing if check is not supported.
isMatchContextPmChecked :: DynFlags -> Origin -> HsMatchContext id -> Bool Source #
Check whether any part of pattern match checking is enabled for this
HsMatchContext (does not matter whether it is the redundancy check or the
exhaustiveness check).
isMatchContextPmChecked_SinglePat :: DynFlags -> Origin -> HsMatchContext id -> LPat GhcTc -> Bool Source #
Check whether exhaustivity checks are enabled for this HsMatchContext,
when dealing with a single pattern (using the matchSinglePatVar function).
needToRunPmCheck :: DynFlags -> Origin -> Bool Source #
Return True when any of the pattern match warnings (allPmCheckWarnings)
are enabled, in which case we need to run the pattern match checker.