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|
(.require
[library
[lux (.except def with)
[abstract
[monad (.only do)]
["[0]" hash]]
[control
[reader (.only Reader)]
["?" parser (.use "[1]#[0]" monad)]
[function
["[0]" predicate (.only Predicate)]]]
[data
["[0]" product]
["[0]" text (.use "[1]#[0]" equivalence)]
[collection
["[0]" set (.only Set)]
["[0]" list (.use "[1]#[0]" functor)]]]
["[0]" meta (.only)
["[0]" symbol]
["[0]" static]
["[0]" code (.only)
["?[1]" \\parser (.only Parser)]]
["[0]" macro (.only with_symbols)
["[0]" context]
[syntax (.only syntax)
["[0]" export]]]
[type
[primitive (.except #name)]]]]]
[///
["//" mixin]])
(.def .public (altered alteration scope)
(All (_ context value)
(-> (-> context context) (Reader context value)
(Reader context value)))
(function (_ context)
(scope (alteration context))))
(with_expansions [<representation> Symbol]
(primitive .public Layer
<representation>
(.def .public layer
(syntax (_ [[export_policy name] (export.parser ?code.local)])
(do meta.monad
[@ meta.current_module_name]
(in (list (` (.def (, export_policy) (, (code.local name))
Layer
(<| (as Layer)
(is <representation>)
[(, (code.text @))
(, (code.text name))]))))))))
(type .public Context
(Set Layer))
(.def .public empty
Context
(set.empty (at hash.functor each (|>> representation) symbol.hash)))
))
(with_template [<name> <change>]
[(.def .public (<name> layer scope)
(All (_ value)
(-> Layer (Reader Context value)
(Reader Context value)))
(function (_ context)
(scope (<change> layer context))))]
[with set.has]
[without set.lacks]
)
(.def .public (active? layer)
(All (_ value)
(-> Layer (Predicate Context)))
(function (_ context)
(set.member? context layer)))
(.def .public inactive?
(All (_ value)
(-> Layer (Predicate Context)))
(|>> active? predicate.complement))
(type Polymorphism
(Record
[#function Text
#quantifications (List Code)
#context Code
#inputs (List Code)
#output Code
#default Code
#export_policy Code
#scenarios (List Code)]))
(context.def [stack expression declaration] Polymorphism)
(type Signature
(Record
[#name Text
#next Text
#parameters (List Code)]))
(.def signature
(Parser Signature)
(?code.form
(all ?.and
?code.local
?code.local
(?.many ?code.any))))
(.def (quoted it)
(-> Code Code)
(` ((,' .,') (, it))))
(.def .public def
(syntax (_ [[export_policy signature] (export.parser ..signature)
quantifications (?code.tuple (?.some ?code.any))
context ?code.any
inputs (?code.tuple (?.many ?code.any))
output ?code.any
default ?code.any
methods (?.some ?code.any)])
(<| (with_symbols [g!self g!_ g!scenarios g!scenario g!mixin])
(..declaration [#function (the #name signature)
#quantifications quantifications
#context context
#inputs inputs
#output output
#default default
#export_policy export_policy
#scenarios (list)])
(let [name (quoted (code.local (the #name signature)))
next (quoted (code.local (the #next signature)))
parameters (list#each quoted (the #parameters signature))
[@ _] (symbol .._)
g!self (quoted g!self)])
(` (these (,* methods)
(static.expansion
(do meta.monad
[[(, g!_) (, g!_) (, g!_) (, g!_) (, g!_) (, g!_) (, g!_) (, g!scenarios)]
(context.search' (|>> product.left
(at text.equivalence (,' =) (, (code.text (the #name signature)))))
[(.in_module# (, (code.text @)) ..stack)
(symbol ..stack)])]
(at meta.monad (,' in)
(list (` (.def (, export_policy) (, name)
(, (quoted (` (<| (,* quantifications)
(-> (,* inputs) (Reader (, context) (, output)))))))
(let [(, (quoted g!mixin)) (is (, (quoted (` (<| (,* quantifications)
(-> [(,* inputs)] (Reader (, context) (, output)))))))
(//.fixed (all //.mixed
((,' .,*) (, g!scenarios))
(is (, (quoted (` (<| (,* quantifications)
(//.Mixin [(,* inputs)] (Reader (, context) (, output)))))))
(function ((, g!self) (, next) (, name) [(,* parameters)])
(, (quoted default))))
)))]
(, (when (the #parameters signature)
(list _)
(quoted g!mixin)
_
(` (function ((, name) (,* parameters))
((, (quoted g!mixin)) [(,* parameters)]))))))))))))
)))))
(.def .public method
(syntax (_ [signature ..signature
predicate ?code.any
body ?code.any])
(do [! meta.monad]
[.let [criterion (is (Predicate Polymorphism)
(|>> (the #function)
(text#= (the #name signature))))]
it (context.search criterion ..stack)]
(with_symbols [g!self g!predicate g!parameters g!context g!_ g!next g!again]
(do !
[_ (context.revised {.#Some criterion}
(revised #scenarios (|>> {.#Item (` (let [(, g!predicate) (is (<| (,* (the #quantifications it))
(Predicate (, (the #context it))))
(, predicate))]
(is (<| (,* (the #quantifications it))
(//.Mixin [(,* (the #inputs it))]
(Reader (, (the #context it))
(, (the #output it)))))
(function ((, g!_) (, g!next) (, g!again) (, g!parameters) (, g!context))
(if ((, g!predicate) (, g!context))
((, g!self) (, g!next) (, g!again) (, g!parameters) (, g!context))
((, g!next) (, g!parameters) (, g!context)))))))}))
..stack)]
(in (list (` (.def (, (the #export_policy it)) (, g!self)
(<| (,* (the #quantifications it))
(//.Mixin [(,* (the #inputs it))]
(Reader (, (the #context it))
(, (the #output it)))))
(function ((, g!self)
(, (code.local (the #next signature)))
(, (code.local (the #name signature)))
[(,* (the #parameters signature))])
(, body)))))))))))
|
