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https://github.com/reanimate/reanimate.git
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66 lines
5.2 KiB
HTML
66 lines
5.2 KiB
HTML
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span.lineno { color: white; background: #aaaaaa; border-right: solid white 12px }
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span.nottickedoff { background: yellow}
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span.istickedoff { background: white }
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span.tickonlyfalse { margin: -1px; border: 1px solid #f20913; background: #f20913 }
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span.tickonlytrue { margin: -1px; border: 1px solid #60de51; background: #60de51 }
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span.funcount { font-size: small; color: orange; z-index: 2; position: absolute; right: 20 }
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span.decl { font-weight: bold }
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<pre>
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<span class="decl"><span class="nottickedoff">never executed</span> <span class="tickonlytrue">always true</span> <span class="tickonlyfalse">always false</span></span>
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</pre>
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<pre>
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<span class="lineno"> 1 </span>module Reanimate.Morph.Cache
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<span class="lineno"> 2 </span> ( cachePointCorrespondence -- :: Int -> PointCorrespondence -> PointCorrespondence
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<span class="lineno"> 3 </span> ) where
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<span class="lineno"> 4 </span>
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<span class="lineno"> 5 </span>import Control.Exception
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<span class="lineno"> 6 </span>import qualified Data.ByteString as B
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<span class="lineno"> 7 </span>import Data.Hashable
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<span class="lineno"> 8 </span>import Data.Serialize
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<span class="lineno"> 9 </span>import Reanimate.Cache (encodeInt)
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<span class="lineno"> 10 </span>import Reanimate.Misc (renameOrCopyFile)
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<span class="lineno"> 11 </span>import Reanimate.Morph.Common
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<span class="lineno"> 12 </span>import System.Directory
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<span class="lineno"> 13 </span>import System.FilePath
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<span class="lineno"> 14 </span>import System.IO
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<span class="lineno"> 15 </span>import System.IO.Temp
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<span class="lineno"> 16 </span>import System.IO.Unsafe
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<span class="lineno"> 17 </span>
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<span class="lineno"> 18 </span>-- type PointCorrespondence = Polygon → Polygon → (Polygon, Polygon)
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<span class="lineno"> 19 </span>cachePointCorrespondence :: Int -> PointCorrespondence -> PointCorrespondence
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<span class="lineno"> 20 </span><span class="decl"><span class="nottickedoff">cachePointCorrespondence ident fn src dst = unsafePerformIO $ do</span>
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<span class="lineno"> 21 </span><span class="spaces"> </span><span class="nottickedoff">root <- getXdgDirectory XdgCache "reanimate"</span>
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<span class="lineno"> 22 </span><span class="spaces"> </span><span class="nottickedoff">createDirectoryIfMissing True root</span>
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<span class="lineno"> 23 </span><span class="spaces"> </span><span class="nottickedoff">let path = root </> template</span>
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<span class="lineno"> 24 </span><span class="spaces"> </span><span class="nottickedoff">hit <- doesFileExist path</span>
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<span class="lineno"> 25 </span><span class="spaces"> </span><span class="nottickedoff">if hit</span>
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<span class="lineno"> 26 </span><span class="spaces"> </span><span class="nottickedoff">then do</span>
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<span class="lineno"> 27 </span><span class="spaces"> </span><span class="nottickedoff">inp <- B.readFile path</span>
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<span class="lineno"> 28 </span><span class="spaces"> </span><span class="nottickedoff">case decode inp of</span>
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<span class="lineno"> 29 </span><span class="spaces"> </span><span class="nottickedoff">Left{} -> do</span>
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<span class="lineno"> 30 </span><span class="spaces"> </span><span class="nottickedoff">removeFile path</span>
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<span class="lineno"> 31 </span><span class="spaces"> </span><span class="nottickedoff">gen path</span>
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<span class="lineno"> 32 </span><span class="spaces"> </span><span class="nottickedoff">Right out -> return out</span>
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<span class="lineno"> 33 </span><span class="spaces"> </span><span class="nottickedoff">else gen path</span>
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<span class="lineno"> 34 </span><span class="spaces"> </span><span class="nottickedoff">where</span>
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<span class="lineno"> 35 </span><span class="spaces"> </span><span class="nottickedoff">gen path = do</span>
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<span class="lineno"> 36 </span><span class="spaces"> </span><span class="nottickedoff">correspondence <- evaluate (fn src dst)</span>
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<span class="lineno"> 37 </span><span class="spaces"> </span><span class="nottickedoff">withSystemTempFile template $ \tmp h -> do</span>
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<span class="lineno"> 38 </span><span class="spaces"> </span><span class="nottickedoff">hClose h</span>
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<span class="lineno"> 39 </span><span class="spaces"> </span><span class="nottickedoff">B.writeFile tmp (encode correspondence)</span>
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<span class="lineno"> 40 </span><span class="spaces"> </span><span class="nottickedoff">renameOrCopyFile tmp path</span>
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<span class="lineno"> 41 </span><span class="spaces"> </span><span class="nottickedoff">return correspondence</span>
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<span class="lineno"> 42 </span><span class="spaces"> </span><span class="nottickedoff">template = encodeInt key <.> "morph"</span>
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<span class="lineno"> 43 </span><span class="spaces"> </span><span class="nottickedoff">key = hashWithSalt ident (src,dst)</span></span>
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</pre>
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</body>
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</html>
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