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|
(.module:
[lux #*
[control
[monad (#+ do)]
["ex" exception (#+ exception:)]
pipe]
[data
[text ("text/" Equivalence<Text>)
format]
["e" error]
[collection
[list ("list/" Fold<List> Functor<List>)]
[dictionary
[plist]]]]
[macro]]
[// (#+ Operation)
["/." //
[extension]]])
(type: #export Tag Text)
(exception: #export (unknown-module {module Text})
module)
(exception: #export (cannot-declare-tag-twice {module Text} {tag Text})
(ex.report ["Module" module]
["Tag" tag]))
(do-template [<name>]
[(exception: #export (<name> {tags (List Text)} {owner Type})
(ex.report ["Tags" (text.join-with " " tags)]
["Type" (%type owner)]))]
[cannot-declare-tags-for-unnamed-type]
[cannot-declare-tags-for-foreign-type]
)
(exception: #export (cannot-define-more-than-once {name Ident})
(%ident name))
(exception: #export (can-only-change-state-of-active-module {module Text} {state Module-State})
(ex.report ["Module" module]
["Desired state" (case state
#.Active "Active"
#.Compiled "Compiled"
#.Cached "Cached")]))
(exception: #export (cannot-set-module-annotations-more-than-once {module Text} {old Code} {new Code})
(ex.report ["Module" module]
["Old annotations" (%code old)]
["New annotations" (%code new)]))
(def: (new hash)
(-> Nat Module)
{#.module-hash hash
#.module-aliases (list)
#.definitions (list)
#.imports (list)
#.tags (list)
#.types (list)
#.module-annotations #.None
#.module-state #.Active})
(def: #export (set-annotations annotations)
(-> Code (Operation Any))
(do ///.Monad<Operation>
[self-name (extension.lift macro.current-module-name)
self (extension.lift macro.current-module)]
(case (get@ #.module-annotations self)
#.None
(extension.lift
(function (_ state)
(#e.Success [(update@ #.modules
(plist.put self-name (set@ #.module-annotations (#.Some annotations) self))
state)
[]])))
(#.Some old)
(///.throw cannot-set-module-annotations-more-than-once [self-name old annotations]))))
(def: #export (import module)
(-> Text (Operation Any))
(do ///.Monad<Operation>
[self-name (extension.lift macro.current-module-name)]
(extension.lift
(function (_ state)
(#e.Success [(update@ #.modules
(plist.update self-name (update@ #.imports (|>> (#.Cons module))))
state)
[]])))))
(def: #export (alias alias module)
(-> Text Text (Operation Any))
(do ///.Monad<Operation>
[self-name (extension.lift macro.current-module-name)]
(extension.lift
(function (_ state)
(#e.Success [(update@ #.modules
(plist.update self-name (update@ #.module-aliases (: (-> (List [Text Text]) (List [Text Text]))
(|>> (#.Cons [alias module])))))
state)
[]])))))
(def: #export (exists? module)
(-> Text (Operation Bool))
(extension.lift
(function (_ state)
(|> state
(get@ #.modules)
(plist.get module)
(case> (#.Some _) true #.None false)
[state] #e.Success))))
(def: #export (define name definition)
(-> Text Definition (Operation []))
(do ///.Monad<Operation>
[self-name (extension.lift macro.current-module-name)
self (extension.lift macro.current-module)]
(extension.lift
(function (_ state)
(case (plist.get name (get@ #.definitions self))
#.None
(#e.Success [(update@ #.modules
(plist.put self-name
(update@ #.definitions
(: (-> (List [Text Definition]) (List [Text Definition]))
(|>> (#.Cons [name definition])))
self))
state)
[]])
(#.Some already-existing)
((///.throw cannot-define-more-than-once [self-name name]) state))))))
(def: #export (create hash name)
(-> Nat Text (Operation []))
(extension.lift
(function (_ state)
(let [module (new hash)]
(#e.Success [(update@ #.modules
(plist.put name module)
state)
[]])))))
(def: #export (with-module hash name action)
(All [a] (-> Nat Text (Operation a) (Operation [Module a])))
(do ///.Monad<Operation>
[_ (create hash name)
output (//.with-current-module name
action)
module (extension.lift (macro.find-module name))]
(wrap [module output])))
(do-template [<setter> <asker> <tag>]
[(def: #export (<setter> module-name)
(-> Text (Operation Any))
(extension.lift
(function (_ state)
(case (|> state (get@ #.modules) (plist.get module-name))
(#.Some module)
(let [active? (case (get@ #.module-state module)
#.Active true
_ false)]
(if active?
(#e.Success [(update@ #.modules
(plist.put module-name (set@ #.module-state <tag> module))
state)
[]])
((///.throw can-only-change-state-of-active-module [module-name <tag>])
state)))
#.None
((///.throw unknown-module module-name) state)))))
(def: #export (<asker> module-name)
(-> Text (Operation Bool))
(extension.lift
(function (_ state)
(case (|> state (get@ #.modules) (plist.get module-name))
(#.Some module)
(#e.Success [state
(case (get@ #.module-state module)
<tag> true
_ false)])
#.None
((///.throw unknown-module module-name) state)))))]
[set-active active? #.Active]
[set-compiled compiled? #.Compiled]
[set-cached cached? #.Cached]
)
(do-template [<name> <tag> <type>]
[(def: (<name> module-name)
(-> Text (Operation <type>))
(extension.lift
(function (_ state)
(case (|> state (get@ #.modules) (plist.get module-name))
(#.Some module)
(#e.Success [state (get@ <tag> module)])
#.None
((///.throw unknown-module module-name) state)))))]
[tags #.tags (List [Text [Nat (List Ident) Bool Type]])]
[types #.types (List [Text [(List Ident) Bool Type]])]
[hash #.module-hash Nat]
)
(def: (ensure-undeclared-tags module-name tags)
(-> Text (List Tag) (Operation Any))
(do ///.Monad<Operation>
[bindings (..tags module-name)
_ (monad.map @
(function (_ tag)
(case (plist.get tag bindings)
#.None
(wrap [])
(#.Some _)
(///.throw cannot-declare-tag-twice [module-name tag])))
tags)]
(wrap [])))
(def: #export (declare-tags tags exported? type)
(-> (List Tag) Bool Type (Operation Any))
(do ///.Monad<Operation>
[self-name (extension.lift macro.current-module-name)
[type-module type-name] (case type
(#.Named type-ident _)
(wrap type-ident)
_
(///.throw cannot-declare-tags-for-unnamed-type [tags type]))
_ (ensure-undeclared-tags self-name tags)
_ (///.assert cannot-declare-tags-for-foreign-type [tags type]
(text/= self-name type-module))]
(extension.lift
(function (_ state)
(case (|> state (get@ #.modules) (plist.get self-name))
(#.Some module)
(let [namespaced-tags (list/map (|>> [self-name]) tags)]
(#e.Success [(update@ #.modules
(plist.update self-name
(|>> (update@ #.tags (function (_ tag-bindings)
(list/fold (function (_ [idx tag] table)
(plist.put tag [idx namespaced-tags exported? type] table))
tag-bindings
(list.enumerate tags))))
(update@ #.types (plist.put type-name [namespaced-tags exported? type]))))
state)
[]]))
#.None
((///.throw unknown-module self-name) state))))))
|
