Copyright	(c) 2013-2016 Galois Inc.
License	BSD3
Maintainer	cryptol@galois.com
Stability	provisional
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

Cryptol.TypeCheck.Solver.Utils

Description

Synopsis

splitVarSummands :: Type -> [(TVar, Type)]
splitVarSummand :: TVar -> Type -> Maybe Type
splitConstSummand :: Type -> Maybe (Integer, Type)
splitConstFactor :: Type -> Maybe (Integer, Type)

Documentation

splitVarSummands :: Type -> [(TVar, Type)] Source #

All ways to split a type in the form: `a + t1`, where a is a variable.

splitVarSummand :: TVar -> Type -> Maybe Type Source #

Check if we can express a type in the form: `a + t1`.

splitConstSummand :: Type -> Maybe (Integer, Type) Source #

Check if we can express a type in the form: `k + t1`, where k is a constant > 0. This assumes that the type has been simplified already, so that constants are floated to the left.

splitConstFactor :: Type -> Maybe (Integer, Type) Source #

Check if we can express a type in the form: `k * t1`, where k is a constant > 1 This assumes that the type has been simplified already, so that constants are floated to the left.