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|
(.module:
lux
(lux (control monad
["ex" exception #+ exception:])
[macro]
(macro [code])
(lang (type ["tc" check]))
(data [text "text/" Eq<Text>]
text/format))
[///]
[// #+ Analysis Operation]
[//type]
[////reference]
[////scope])
(exception: #export (foreign-module-has-not-been-imported {current Text} {foreign Text})
(ex.report ["Current" current]
["Foreign" foreign]))
(exception: #export (definition-has-not-been-expored {definition Ident})
(ex.report ["Definition" (%ident definition)]))
## [Analysers]
(def: (definition def-name)
(-> Ident (Operation Analysis))
(with-expansions [<return> (wrap (|> def-name ////reference.constant #//.Reference))]
(do ///.Monad<Operation>
[[actualT def-anns _] (macro.find-def def-name)]
(case (macro.get-symbol-ann (ident-for #.alias) def-anns)
(#.Some real-def-name)
(definition real-def-name)
_
(do @
[_ (//type.infer actualT)
(^@ def-name [::module ::name]) (macro.normalize def-name)
current macro.current-module-name]
(if (text/= current ::module)
<return>
(if (macro.export? def-anns)
(do @
[imported! (macro.imported-by? ::module current)]
(if imported!
<return>
(///.throw foreign-module-has-not-been-imported [current ::module])))
(///.throw definition-has-not-been-expored def-name))))))))
(def: (variable var-name)
(-> Text (Operation (Maybe Analysis)))
(do ///.Monad<Operation>
[?var (////scope.find var-name)]
(case ?var
(#.Some [actualT ref])
(do @
[_ (//type.infer actualT)]
(wrap (#.Some (|> ref ////reference.variable #//.Reference))))
#.None
(wrap #.None))))
(def: #export (reference reference)
(-> Ident (Operation Analysis))
(case reference
["" simple-name]
(do ///.Monad<Operation>
[?var (variable simple-name)]
(case ?var
(#.Some varA)
(wrap varA)
#.None
(do @
[this-module macro.current-module-name]
(definition [this-module simple-name]))))
_
(definition reference)))
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