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{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
#include "version-compatibility-macros.h"
module Main (main) where
import Control.Monad
import Control.Monad.State
import Gauge.Main
import Data.Text (Text)
import qualified Data.Text as T
import System.Random
import Prettyprinter
import Prettyprinter.Render.Text
import qualified Text.PrettyPrint.ANSI.Leijen as WL
#if !(APPLICATIVE_MONAD)
import Control.Applicative
#endif
main :: IO ()
main = defaultMain
[ benchOptimize
, benchWLComparison
]
benchOptimize :: Benchmark
benchOptimize = env randomShortWords benchmark_
where
benchmark_ = \shortWords ->
let doc = hsep (map pretty shortWords)
in bgroup "Many small words"
[ bench "Unoptimized" (nf renderLazy (layoutPretty defaultLayoutOptions doc))
, bench "Shallowly fused" (nf renderLazy (layoutPretty defaultLayoutOptions (fuse Shallow doc)))
, bench "Deeply fused" (nf renderLazy (layoutPretty defaultLayoutOptions (fuse Deep doc)))
]
randomShortWords :: Applicative m => m [Text]
randomShortWords = pure (evalState (randomShortWords' 100) (mkStdGen 0))
randomShortWords' :: Int -> State StdGen [Text]
randomShortWords' n = replicateM n randomShortWord
randomShortWord :: State StdGen Text
randomShortWord = do
g <- get
let (l, g') = randomR (0, 5) g
(gNew, gFree) = split g'
xs = take l (randoms gFree)
put gNew
pure (T.pack xs)
benchWLComparison :: Benchmark
benchWLComparison = bgroup "vs. other libs"
[ bgroup "renderPretty"
[ bench "this, unoptimized" (nf (renderLazy . layoutPretty defaultLayoutOptions) doc)
, bench "this, shallowly fused" (nf (renderLazy . layoutPretty defaultLayoutOptions) (fuse Shallow doc))
, bench "this, deeply fused" (nf (renderLazy . layoutPretty defaultLayoutOptions) (fuse Deep doc))
, bench "ansi-wl-pprint" (nf (\d -> WL.displayS (WL.renderPretty 0.4 80 d) "") wlDoc)
]
, bgroup "renderSmart"
[ bench "this, unoptimized" (nf (renderLazy . layoutSmart defaultLayoutOptions) doc)
, bench "this, shallowly fused" (nf (renderLazy . layoutSmart defaultLayoutOptions) (fuse Shallow doc))
, bench "this, deeply fused" (nf (renderLazy . layoutSmart defaultLayoutOptions) (fuse Deep doc))
, bench "ansi-wl-pprint" (nf (\d -> WL.displayS (WL.renderSmart 0.4 80 d) "") wlDoc)
]
, bgroup "renderCompact"
[ bench "this, unoptimized" (nf (renderLazy . layoutCompact) doc)
, bench "this, shallowly fused" (nf (renderLazy . layoutCompact) (fuse Shallow doc))
, bench "this, deeply fused" (nf (renderLazy . layoutCompact) (fuse Deep doc))
, bench "ansi-wl-pprint" (nf (\d -> WL.displayS (WL.renderCompact d) "") wlDoc)
]
]
where
doc :: Doc ann
doc = let fun x = "fun" <> parens (softline <> x)
funnn = chain 10 fun
in funnn (sep (take 48 (cycle ["hello", "world"])))
wlDoc :: WL.Doc
wlDoc = let fun x = "fun" WL.<> WL.parens (WL.softline WL.<> x)
funnn = chain 10 fun
in funnn (WL.sep (take 48 (cycle ["hello", "world"])))
chain n f = foldr (.) id (replicate n f)
|
