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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except local)
[abstract
[equivalence (.only Equivalence)]
[hash (.only Hash)]]
[control
["[0]" pipe]]
[data
[text
["%" \\format (.only Format)]]]
[math
[number
["n" nat]]]
[meta
["[0]" symbol]
[macro
["^" pattern]]]]]
["[0]" /
["[1][0]" variable (.only Variable)]])
(type .public Constant
Symbol)
(type .public Reference
(Variant
{#Variable Variable}
{#Constant Constant}))
(def .public equivalence
(Equivalence Reference)
(implementation
(def (= reference sample)
(when [reference sample]
(^.with_template [<tag> <equivalence>]
[[{<tag> reference} {<tag> sample}]
(of <equivalence> = reference sample)])
([#Variable /variable.equivalence]
[#Constant symbol.equivalence])
_
false))))
(def .public hash
(Hash Reference)
(implementation
(def equivalence
..equivalence)
(def (hash value)
(when value
(^.with_template [<factor> <tag> <hash>]
[{<tag> value}
(|> value
(of <hash> hash)
(n.* <factor>))])
([2 #Variable /variable.hash]
[3 #Constant symbol.hash])
))))
(with_template [<name> <family> <tag>]
[(def .public <name>
(template (<name> content)
[(<| {<family>}
{<tag>}
content)]))]
[local ..#Variable /variable.#Local]
[foreign ..#Variable /variable.#Foreign]
)
(with_template [<name> <tag>]
[(def .public <name>
(template (<name> content)
[(<| {<tag>}
content)]))]
[variable ..#Variable]
[constant ..#Constant]
)
(`` (def .public self
(template (self)
[(..variable (,, (/variable.self)))])))
(def .public format
(Format Reference)
(|>> (pipe.when
{#Variable variable}
(/variable.format variable)
{#Constant constant}
(%.symbol constant))))
|
