In January 2021 we will introduce a 10 GB quota for project repositories. Higher limits for individual projects will be available on request. Please see https://doku.lrz.de/display/PUBLIC/GitLab for more information.

Property.hs 1.62 KB
 Philipp Meyer committed Apr 22, 2014 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 ``````{-# OPTIONS_GHC -fno-warn-name-shadowing #-} module Property (Property(..), PropertyType(..), Formula(..), LinearInequation(..), Op(..), Term(..), LinAtom(..)) where import Data.List (intercalate) data LinAtom = Var Integer String | Const Integer instance Show LinAtom where show (Var c x) | c == 1 = x show (Var c x) | c == -1 = "-" ++ x show (Var c x) = show c ++ "*" ++ x show (Const c) = show c data Term = Term [LinAtom] instance Show Term where show (Term xs) = intercalate " + " (map show xs) data Op = Gt | Ge | Eq | Le | Lt instance Show Op where show Gt = ">" show Ge = ">=" show Eq = "=" show Le = "<=" show Lt = "<" data LinearInequation = LinIneq Term Op Term instance Show LinearInequation where show (LinIneq lhs op rhs) = show lhs ++ " " ++ show op ++ " " ++ show rhs data Formula = Atom LinearInequation | Neg Formula | Formula :&: Formula | Formula :|: Formula infixr 3 :&: infixr 2 :|: instance Show Formula where show (Atom a) = show a show (Neg p) = "¬" ++ show p show (p :&: q) = "(" ++ show p ++ " ∧ " ++ show q ++ ")" show (p :|: q) = "(" ++ show p ++ " ∨ " ++ show q ++ ")" data PropertyType = Safety | Liveness instance Show PropertyType where show Safety = "safety" show Liveness = "liveness" data Property = Property String PropertyType Formula instance Show Property where show (Property name ptype formula) = show ptype ++ " " ++ show name ++ " { " ++ show formula ++ " }" ``````