roc/examples/benchmarks/Closure.roc
2021-12-21 17:17:31 -08:00

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app "closure"
packages { pf: "platform" }
imports [ pf.Task ]
provides [ main ] to pf
# see https://github.com/rtfeldman/roc/issues/985
main : Task.Task {} []
main = closure1 {}
# |> Task.after (\_ -> closure2 {})
# |> Task.after (\_ -> closure3 {})
# |> Task.after (\_ -> closure4 {})
# ---
closure1 : {} -> Task.Task {} []
closure1 = \_ ->
Task.succeed (foo toUnitBorrowed "a long string such that it's malloced")
|> Task.map (\_ -> {})
toUnitBorrowed = \x -> Str.countGraphemes x
foo = \f, x -> f x
# ---
closure2 : {} -> Task.Task {} []
closure2 = \_ ->
x : Str
x = "a long string such that it's malloced"
Task.succeed {}
|> Task.map (\_ -> x)
|> Task.map toUnit
toUnit = \_ -> {}
# ---
closure3 : {} -> Task.Task {} []
closure3 = \_ ->
x : Str
x = "a long string such that it's malloced"
Task.succeed {}
|> Task.after (\_ -> Task.succeed x |> Task.map (\_ -> {}))
# ---
closure4 : {} -> Task.Task {} []
closure4 = \_ ->
x : Str
x = "a long string such that it's malloced"
Task.succeed {}
|> Task.after (\_ -> Task.succeed x)
|> Task.map (\_ -> {})