75 lines
2.4 KiB
Agda
75 lines
2.4 KiB
Agda
module Lib.TopContext
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import Data.IORef
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import Data.SortedMap
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import Data.String
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import Prelude
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import Lib.Common
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import Lib.Types
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-- I want unique ids, to be able to lookup, update, and a Ref so
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-- I don't need good Context discipline. (I seem to have made mistakes already.)
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lookup : QName -> TopContext -> Maybe TopEntry
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lookup qn@(QN ns nm) top =
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case lookupMap' qn top.defs of
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Just entry => Just entry
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Nothing => case lookupMap' ns top.modules of
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Just mod => lookupMap' qn mod.modDefs
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Nothing => Nothing
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-- TODO - look at imported namespaces, and either have a map of imported names or search imported namespaces..
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lookupRaw : String -> TopContext -> Maybe TopEntry
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lookupRaw raw top =
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case lookupMap' (QN top.ns raw) top.defs of
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Just entry => Just entry
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Nothing => go top.imported
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where
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go : List (List String) → Maybe TopEntry
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go Nil = Nothing
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go (ns :: nss) = case lookupMap' ns top.modules of
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Nothing => go nss
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Just mod => case lookupMap' (QN ns raw) mod.modDefs of
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Just entry => Just entry
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Nothing => go nss
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instance Show TopContext where
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show (MkTop _ _ _ defs metas _ _ _) = "\nContext:\n (\{ joinBy "\n" $ map (show ∘ snd) $ toList defs} :: Nil)"
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-- TODO need to get class dependencies working
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emptyTop : ∀ io. {{Monad io}} {{HasIO io}} -> io TopContext
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emptyTop = do
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mcctx <- newIORef (MC EmptyMap 0 CheckAll)
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errs <- newIORef $ the (List Error) Nil
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pure $ MkTop EmptyMap Nil Nil EmptyMap mcctx False errs EmptyMap
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setDef : QName -> FC -> Tm -> Def -> M Unit
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setDef name fc ty def = do
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top <- get
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let (Nothing) = lookupMap' name top.defs
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| Just (MkEntry fc' nm' ty' def') => error fc "\{show name} is already defined at \{show fc'}"
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modify $ \case
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MkTop mods imp ns defs metaCtx verbose errors ops =>
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let defs = (updateMap name (MkEntry fc name ty def) top.defs) in
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MkTop mods imp ns defs metaCtx verbose errors ops
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updateDef : QName -> FC -> Tm -> Def -> M Unit
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updateDef name fc ty def = do
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top <- get
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let (Just (MkEntry fc' nm' ty' def')) = lookupMap' name top.defs
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| Nothing => error fc "\{show name} not declared"
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modify $ \case
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MkTop mods imp ns defs metaCtx verbose errors ops =>
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let defs = (updateMap name (MkEntry fc' name ty def) defs) in
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MkTop mods imp ns defs metaCtx verbose errors ops
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addError : Error -> M Unit
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addError err = do
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top <- get
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modifyIORef top.errors (_::_ err)
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