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|
(.require
[library
[lux (.except def global revised)
[abstract
[monad (.only do)]]
[control
["?" parser]
["[0]" try (.only Try) (.use "[1]#[0]" functor)]
["[0]" exception (.only Exception)]
["[0]" maybe]
[function
[predicate (.only Predicate)]]]
[data
["[0]" text (.use "[1]#[0]" equivalence monoid)]
[collection
["[0]" list (.only)
["[0]" property]]]]
["[0]" meta (.only)
[type (.only sharing by_example)]
["[0]" symbol (.use "[1]#[0]" codec)]
["[0]" code (.only)
["?[1]" \\parser]]]]]
["[0]" // (.only)
[syntax (.only syntax)
["[0]" export]]])
(type .public Stack
List)
(.def Stack'
(template (_ value)
[[(Stack value) Symbol]]))
(with_template [<name> <type> <format>]
[(exception.def .public (<name> it)
(Exception <type>)
(exception.report
(list ["Definition" (<format> it)])))]
[not_a_definition Symbol symbol#encoded]
[not_a_global Symbol symbol#encoded]
[not_a_module Text text.format]
[no_example Symbol symbol#encoded]
)
(.def (global it)
(-> Symbol (Meta Any))
(do meta.monad
[.let [[@ expected_name] it]
defs (meta.definitions @)]
(when (list.one (function (_ [actual_name [exported? [type value]]])
(if (text#= expected_name actual_name)
{.#Some value}
{.#None}))
defs)
{.#Some it}
(in it)
{.#None}
(meta.failure (exception.error ..not_a_definition [it])))))
(exception.def .public no_active_context)
(.def .public (peek' [_ context])
(All (_ a) (-> (Stack' a) (Meta a)))
(do meta.monad
[stack (..global context)]
(when (|> stack
(as (Stack Any))
list.head)
{.#Some top}
(in (as_expected top))
{.#None}
(meta.failure (exception.error ..no_active_context [])))))
(.def .public peek
(syntax (_ [g!it (at ?.monad each code.symbol ?code.global)])
(in (list (` (..peek' [(, g!it) (.symbol (, g!it))]))))))
(.def .public (search' ? [_ context])
(All (_ a) (-> (Predicate a) (Stack' a) (Meta a)))
(do meta.monad
[stack (..global context)]
(when (|> stack
(as (Stack Any))
(list.example (as (Predicate Any) ?)))
{.#Some it}
(in (as_expected it))
{.#None}
(meta.failure (exception.error ..no_example [context])))))
(.def .public search
(syntax (_ [g!? ?code.any
g!context (at ?.monad each code.symbol ?code.global)])
(in (list (` (..search' (, g!?) [(, g!context) (.symbol (, g!context))]))))))
(.def (alter on_definition [_ definition])
(All (_ value)
(-> (-> Symbol Definition (Try Definition)) (Stack' value)
(Meta Any)))
(function (_ lux)
(let [[@ context] definition
on_global (is (-> Global (Try Global))
(function (_ it)
(when it
{.#Definition it}
(try#each (|>> {.#Definition}) (on_definition definition it))
_
(exception.except ..not_a_definition [definition]))))
on_globals (is (-> (property.List [Bit Global]) (Try (property.List [Bit Global])))
(function (_ globals)
(when (property.value context globals)
{.#Some [exported? global]}
(try#each (function (_ global)
(property.has context [exported? global] globals))
(on_global global))
{.#None}
(exception.except ..not_a_global [definition]))))
on_module (is (-> Module (Try Module))
(function (_ module)
(try#each (function (_ globals)
(has .#definitions globals module))
(on_globals (the .#definitions module)))))
on_lux (is (-> Lux (Try Lux))
(function (_ lux)
(when (property.value @ (the .#modules lux))
{.#Some module}
(try#each (function (_ module)
(.revised .#modules (property.has @ module) lux))
(on_module module))
{.#None}
(exception.except ..not_a_module [@]))))]
(when (on_lux lux)
{try.#Success it}
{try.#Success [it []]}
{try.#Failure error}
((meta.failure error) lux)))))
(.def .public (push' top)
(All (_ value)
(-> value (Stack' value)
(Meta Any)))
(alter (function (_ _ [type stack])
(|> stack
(as (Stack Any))
{.#Item top}
(is (Stack Any))
[type]
{try.#Success}))))
(.def .public push
(syntax (_ [g!it ?code.any
g!context (at ?.monad each code.symbol ?code.global)])
(in (list (` (..push' (, g!it) [(, g!context) (.symbol (, g!context))]))))))
(.def .public (revised' ? !)
(All (_ value)
(-> (Maybe (Predicate value)) (-> value value) (Stack' value)
(Meta Any)))
(alter (function (_ @ [type stack])
(let [stack (sharing [value]
(is (-> value value)
!)
(is (Stack value)
(as_expected stack)))]
(when ?
{.#Some ?}
(do try.monad
[stack (loop (again [stack stack])
(when stack
(list.partial top stack')
(if (? top)
(in (list.partial (! top) stack'))
(do try.monad
[stack' (again stack')]
(in (list.partial top stack'))))
_
(exception.except ..no_example [@])))]
(in [type stack]))
{.#None}
(when stack
(list.partial top stack')
(|> stack'
(list.partial (! top))
(is (Stack Any))
[type]
{try.#Success})
_
(exception.except ..no_example [@])))))))
(.def .public revised
(syntax (_ [g!predicate ?code.any
g!revision ?code.any
g!context (at ?.monad each code.symbol ?code.global)])
(in (list (` (..revised' (, g!predicate)
(, g!revision)
[(, g!context) (.symbol (, g!context))]))))))
(.def .public pop''
(All (_ value) (-> (Stack' value) (Meta Any)))
(alter (function (_ _ [type value])
(|> (let [value (as (Stack Any) value)]
(maybe.else value (list.tail value)))
[type]
{try.#Success}))))
(.def .public pop'
(syntax (_ [expression? ?code.bit
context ?code.global])
(do meta.monad
[_ (..pop'' [(list) context])]
(in (if expression?
(list (' []))
(list))))))
(.def .public pop
(syntax (_ [g!context (at ?.monad each code.symbol ?code.global)])
(in (list (` (..pop'' [(, g!context) (.symbol (, g!context))]))))))
(.def .public def
(syntax (_ [.let [! ?.monad
?local (at ! each code.local ?code.local)]
[export_$? $] (?code.tuple (export.with ?code.local))
[export_expression? g!expression] (?code.tuple (export.with ?local))
[export_declaration? g!declaration] (?code.tuple (export.with ?local))
context_type ?code.any])
(do [! meta.monad]
[@ meta.current_module_name
.let [g!context (code.symbol [@ $])]]
(//.with_symbols [g!it g!body g!_]
(in (list (` (.def (, export_$?) (, (code.local $))
(..Stack (, context_type))
(list)))
(` (.def (, export_expression?) ((, g!expression) (, g!it) (, g!body))
(-> (, context_type) Code (Meta Code))
(do meta.monad
[(, g!_) (..push (, g!it) (, g!context))]
((,' in) (` (let [((,' ,') (, g!body)) ((,' ,) (, g!body))
((,' ,') (, g!_)) (..pop' #1 (, g!context))]
((,' ,') (, g!body))))))))
(` (.def (, export_declaration?) ((, g!declaration) (, g!it) (, g!body))
(-> (, context_type) Code (Meta (List Code)))
(do meta.monad
[(, g!_) (..push (, g!it) (, g!context))]
((,' in) (list (, g!body)
(` (..pop' #0 (, g!context))))))))
))))))
|
