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Add more timing stats #106

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Merged
chrisdone-artificial merged 1 commit into from
Oct 13, 2025
Merged

Add more timing stats #106

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24 changes: 18 additions & 6 deletions src/Hell.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,7 @@ dispatch (Check filePath stats) = do
compileFile :: StatsEnabled -> FilePath -> IO (Term () (IO ()))
compileFile stats filePath = do
t0 <- getTime
!result <- parseFile filePath
!result <- parseFile (nestStat stats) filePath
t1 <- getTime
emitStat stats "parse" (t1-t0)
case result of
Expand Down Expand Up @@ -2545,12 +2545,24 @@ data File = File
}

-- Parse a file into a list of decls, but strip shebangs.
parseFile :: String -> IO (Either String File)
parseFile filePath = do
parseFile :: StatsEnabled -> String -> IO (Either String File)
parseFile stats filePath = do
t0 <- getTime
string <- ByteString.readFile filePath
pure $ case HSE.parseModuleWithMode HSE.defaultParseMode {HSE.parseFilename = filePath, HSE.extensions = HSE.extensions HSE.defaultParseMode ++ [HSE.EnableExtension HSE.PatternSignatures, HSE.EnableExtension HSE.DataKinds, HSE.EnableExtension HSE.BlockArguments, HSE.EnableExtension HSE.TypeApplications, HSE.EnableExtension HSE.NamedFieldPuns]} (Text.unpack (dropShebang (Text.decodeUtf8 string))) >>= parseModule of
HSE.ParseFailed l e -> Left $ "Parse error: " <> HSE.prettyPrint l <> ": " <> e
HSE.ParseOk file -> Right file
t1 <- getTime
emitStat stats "read_file" (t1-t0)
case HSE.parseModuleWithMode HSE.defaultParseMode {HSE.parseFilename = filePath, HSE.extensions = HSE.extensions HSE.defaultParseMode ++ [HSE.EnableExtension HSE.PatternSignatures, HSE.EnableExtension HSE.DataKinds, HSE.EnableExtension HSE.BlockArguments, HSE.EnableExtension HSE.TypeApplications, HSE.EnableExtension HSE.NamedFieldPuns]} (Text.unpack (dropShebang (Text.decodeUtf8 string))) of
HSE.ParseFailed l e -> pure $ Left $ "Parse error: " <> HSE.prettyPrint l <> ": " <> e
HSE.ParseOk !file -> do
t2 <- getTime
emitStat stats "parse_module_with_mode" (t2-t1)
case parseModule file of
HSE.ParseFailed l e ->
pure $ Left $ "Parse error: " <> HSE.prettyPrint l <> ": " <> e
HSE.ParseOk !file' -> do
t3 <- getTime
emitStat stats "resolve_module" (t3-t2)
pure $ Right file'

-- This should be quite efficient because it's essentially a pointer
-- increase. It leaves the \n so that line numbers are intact.
Expand Down