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juvix/app/Commands/Repl/Options.hs
Łukasz Czajka 34b0969141
Pretty print JuvixCore values consistently with Juvix syntax (#1988)
This PR implements pretty printing of evaluation results consistently
with Juvix syntax. The printed values do not necessarily originate
directly from the source code. All functions/lambdas are printed as
`<fun>`.

The same mechanism is used to implement pretty printing of unmatched
pattern examples.

Juvix REPL now uses the new value printing mechanism to display
evaluation results. Typing `nil` in the REPL will now just display
`nil`. The command `juvix dev repl` still prints raw JuvixCore terms.

* Closes #1957 
* Closes #1985
2023-04-12 12:52:40 +02:00

38 lines
1020 B
Haskell

module Commands.Repl.Options where
import CommonOptions
import Juvix.Compiler.Core.Pretty.Options qualified as Core
import Juvix.Compiler.Core.Transformation
data ReplOptions = ReplOptions
{ _replInputFile :: Maybe (AppPath File),
_replShowDeBruijn :: Bool,
_replNoPrelude :: Bool,
_replTransformations :: [TransformationId],
_replNoDisambiguate :: Bool,
_replPrintValues :: Bool
}
deriving stock (Data)
makeLenses ''ReplOptions
instance CanonicalProjection ReplOptions Core.Options where
project c =
Core.defaultOptions
{ Core._optShowDeBruijnIndices = c ^. replShowDeBruijn
}
parseRepl :: Parser ReplOptions
parseRepl = do
let _replTransformations = toEvalTransformations
_replShowDeBruijn = False
_replNoDisambiguate = False
_replPrintValues = True
_replInputFile <- optional parseInputJuvixFile
_replNoPrelude <-
switch
( long "no-prelude"
<> help "Do not load the Prelude module on launch"
)
pure ReplOptions {..}