ghc-9.0.2: The GHC API
Safe HaskellSafe-Inferred
LanguageHaskell2010

GHC.HsToCore.PmCheck.Ppr

Description

Provides factilities for pretty-printing Deltas in a way appropriate for user facing pattern match warnings.

Synopsis

Documentation

pprUncovered :: Delta -> [Id] -> SDoc Source #

Pretty-print the guts of an uncovered value vector abstraction, i.e., its components and refutable shapes associated to any mentioned variables.

Example for ([Just p, q], [p :-> [3,4], q :-> [0,5]]):

(Just p) q
    where p is not one of {3, 4}
          q is not one of {0, 5}

When the set of refutable shapes contains more than 3 elements, the additional elements are indicated by "...".