stdlib/source/test/lux/type/abstract.lux


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(.module:
  [library
   [lux "*"
    ["_" test {"+" [Test]}]
    ["[0]" meta]
    [abstract
     [monad {"+" [do]}]]
    [control
     ["[0]" try]
     ["[0]" exception]
     [parser
      ["<[0]>" code]]]
    [data
     ["[0]" text ("[1]\[0]" equivalence)]]
    ["[0]" macro
     [syntax {"+" [syntax:]}]
     ["[0]" code]
     ["[0]" template]]
    ["[0]" math
     ["[0]" random]
     [number
      ["n" nat]]]]]
  [\\library
   ["[0]" /]])

(template.with_locals [g!Foo g!Bar]
  (as_is (template [<syntax> <meta>]
           [(syntax: (<syntax> [])
              (do meta.monad
                [frame <meta>]
                (in (list (code.text (value@ #/.name frame))))))]

           [current /.current]
           [specific (/.specific (template.text [g!Foo]))]
           )

         (syntax: (with_no_active_frames [macro <code>.any])
           (function (_ compiler)
             (let [verdict (case ((macro.expansion macro) compiler)
                             {#try.Failure error}
                             (exception.match? /.no_active_frames error)
                             
                             {#try.Success _}
                             false)]
               {#try.Success [compiler (list (code.bit verdict))]})))

         (with_expansions [no_current! (..with_no_active_frames (..current))
                           no_specific! (..with_no_active_frames (..specific))]
           (/.abstract: (g!Foo a)
             Text

             [(/.abstract: (g!Bar a)
                Nat

                [(def: .public test
                   Test
                   (<| (_.covering /._)
                       (_.for [/.abstract:])
                       (do random.monad
                         [expected_foo (random.ascii/lower 5)
                          expected_bar random.nat]
                         ($_ _.and
                             (_.cover [/.:abstraction]
                                      (and (exec (: (g!Foo Text)
                                                    (/.:abstraction g!Foo expected_foo))
                                             true)
                                           (exec (: (g!Bar Text)
                                                    (/.:abstraction expected_bar))
                                             true)))
                             (_.cover [/.:representation]
                                      (and (|> expected_foo
                                               (/.:abstraction g!Foo)
                                               (: (g!Foo Bit))
                                               (/.:representation g!Foo)
                                               (text\= expected_foo))
                                           (|> (/.:abstraction expected_bar)
                                               (: (g!Bar Bit))
                                               /.:representation
                                               (n.= expected_bar))))
                             (_.cover [/.:transmutation]
                                      (and (exec (|> expected_foo
                                                     (/.:abstraction g!Foo)
                                                     (: (g!Foo .Macro))
                                                     (/.:transmutation g!Foo)
                                                     (: (g!Foo .Lux)))
                                             true)
                                           (exec (|> (/.:abstraction expected_bar)
                                                     (: (g!Bar .Macro))
                                                     /.:transmutation
                                                     (: (g!Bar .Lux)))
                                             true)))
                             (_.cover [/.^:representation]
                                      (and (let [(/.^:representation g!Foo actual_foo)
                                                 (: (g!Foo .Module)
                                                    (/.:abstraction g!Foo expected_foo))]
                                             (text\= expected_foo actual_foo))
                                           (let [(/.^:representation actual_bar)
                                                 (: (g!Bar .Module)
                                                    (/.:abstraction expected_bar))]
                                             (n.= expected_bar actual_bar))))
                             (_.for [/.Frame]
                                    ($_ _.and
                                        (_.cover [/.current]
                                                 (text\= (template.text [g!Bar])
                                                         (..current)))
                                        (_.cover [/.specific]
                                                 (text\= (template.text [g!Foo])
                                                         (..specific)))
                                        (_.cover [/.no_active_frames]
                                                 (and no_current!
                                                      no_specific!))
                                        ))
                             ))))])]))))