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https://github.com/notepad-plus-plus/notepad-plus-plus.git
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4cdd96f020
- added missing unittest for c - added further function lists for ada, fortran, fortran77, haskell from previous PR of MAPJe71_functionlist_update3 - added simple rust function list - unittest files from the internet probably no complex ones - added to installer Fix #9698, close #3393, close #9727
117 lines
2.9 KiB
Plaintext
117 lines
2.9 KiB
Plaintext
-- Necessary:
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{-# LANGUAGE DeriveDataTypeable #-}
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{-# LANGUAGE GADTs #-}
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{-# LANGUAGE MultiParamTypeClasses #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE StandaloneDeriving #-}
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{-# LANGUAGE TypeFamilies #-}
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-- Incidental:
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{-# LANGUAGE FlexibleInstances #-}
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{-# LANGUAGE TypeSynonymInstances #-}
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module Main where
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import Control.Monad
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import Data.Hashable
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import Data.List
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import Data.Text (Text)
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import Data.Traversable (for)
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import Data.Typeable
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import Haxl.Core
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import System.Random
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import qualified Data.Text as Text
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main :: IO ()
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main = do
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let stateStore = stateSet UserState{} stateEmpty
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env0 <- initEnv stateStore ()
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names <- runHaxl env0 getAllUsernames
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print names
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-- Data source API.
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getAllUsernames :: Haxl [Name]
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getAllUsernames = do
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userIds <- getAllUserIds
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for userIds $ \userId -> do
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getUsernameById userId
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getAllUserIds :: Haxl [Id]
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getAllUserIds = dataFetch GetAllIds
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getUsernameById :: Id -> Haxl Name
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getUsernameById userId = dataFetch (GetNameById userId)
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-- Aliases.
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type Haxl = GenHaxl () ()
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type Id = Int
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type Name = Text
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-- Data source implementation.
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data UserReq a where
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GetAllIds :: UserReq [Id]
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GetNameById :: Id -> UserReq Name
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deriving (Typeable)
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deriving instance Eq (UserReq a)
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instance Hashable (UserReq a) where
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hashWithSalt s GetAllIds = hashWithSalt s (0::Int)
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hashWithSalt s (GetNameById a) = hashWithSalt s (1::Int, a)
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deriving instance Show (UserReq a)
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instance ShowP UserReq where showp = show
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instance StateKey UserReq where
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data State UserReq = UserState {}
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instance DataSourceName UserReq where
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dataSourceName _ = "UserDataSource"
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instance DataSource u UserReq where
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fetch _state _flags _userEnv = SyncFetch $ \blockedFetches -> do
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let
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allIdVars :: [ResultVar [Id]]
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allIdVars = [r | BlockedFetch GetAllIds r <- blockedFetches]
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idStrings :: [String]
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idStrings = map show ids
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ids :: [Id]
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vars :: [ResultVar Name]
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(ids, vars) = unzip
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[(userId, r) | BlockedFetch (GetNameById userId) r <- blockedFetches]
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unless (null allIdVars) $ do
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allIds <- sql "select id from ids"
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mapM_ (\r -> putSuccess r allIds) allIdVars
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unless (null ids) $ do
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names <- sql $ unwords
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[ "select name from names where"
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, intercalate " or " $ map ("id = " ++) idStrings
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, "order by find_in_set(id, '" ++ intercalate "," idStrings ++ "')"
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]
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mapM_ (uncurry putSuccess) (zip vars names)
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-- Mock SQL API.
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class SQLResult a where
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mockResult :: IO a
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instance SQLResult a => SQLResult [a] where
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mockResult = replicateM 10 mockResult
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instance SQLResult Name where
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-- An infinite number of employees, all named Jim.
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mockResult = ("Jim" `Text.append`) . Text.pack . show <$> randomRIO (1::Int, 100)
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instance SQLResult Id where
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mockResult = randomRIO (1, 100)
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sql :: SQLResult a => String -> IO a
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sql query = print query >> mockResult
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