Copyright	(c) 2012-2021 Amy de Buitléir
License	BSD-style
Maintainer	amy@nualeargais.ie
Stability	experimental
Portability	portable
Safe Haskell	None
Language	Haskell2010

ALife.Creatur.Persistent

Description

A state which persists between runs.

Synopsis

data Persistent a
mkPersistent :: a -> FilePath -> Persistent a
getPS :: Read a => StateT (Persistent a) IO a
putPS :: (Show a, Read a) => a -> StateT (Persistent a) IO ()
modifyPS :: (Show a, Read a) => (a -> a) -> StateT (Persistent a) IO ()
runPS :: Read a => (a -> b) -> StateT (Persistent a) IO b

Documentation

data Persistent a Source #

Instances

Instances details

Checklist PersistentChecklist Source #
Instance details Defined in ALife.Creatur.Checklist Methods status :: StateT PersistentChecklist IO Status Source # markDone :: String -> StateT PersistentChecklist IO () Source # notStarted :: StateT PersistentChecklist IO Bool Source # done :: StateT PersistentChecklist IO Bool Source # setItems :: [String] -> StateT PersistentChecklist IO () Source # delete :: String -> StateT PersistentChecklist IO () Source #
Clock PersistentCounter Source #
Instance details Defined in ALife.Creatur.Counter Methods currentTime :: StateT PersistentCounter IO Time Source # incTime :: StateT PersistentCounter IO () Source #
Counter PersistentCounter Source #
Instance details Defined in ALife.Creatur.Counter Methods current :: StateT PersistentCounter IO Int Source # increment :: StateT PersistentCounter IO () Source #
Eq a => Eq (Persistent a) Source #
Instance details Defined in ALife.Creatur.Persistent Methods (==) :: Persistent a -> Persistent a -> Bool # (/=) :: Persistent a -> Persistent a -> Bool #
Read a => Read (Persistent a) Source #
Instance details Defined in ALife.Creatur.Persistent Methods readsPrec :: Int -> ReadS (Persistent a) # readList :: ReadS [Persistent a] # readPrec :: ReadPrec (Persistent a) # readListPrec :: ReadPrec [Persistent a] #
Show a => Show (Persistent a) Source #
Instance details Defined in ALife.Creatur.Persistent Methods showsPrec :: Int -> Persistent a -> ShowS # show :: Persistent a -> String # showList :: [Persistent a] -> ShowS #

mkPersistent :: a -> FilePath -> Persistent a Source #

Creates a counter that will store its value in the specified file.

getPS :: Read a => StateT (Persistent a) IO a Source #

putPS :: (Show a, Read a) => a -> StateT (Persistent a) IO () Source #

modifyPS :: (Show a, Read a) => (a -> a) -> StateT (Persistent a) IO () Source #

runPS :: Read a => (a -> b) -> StateT (Persistent a) IO b Source #