core / init.meta.task - mathlib3 docs

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core / init.meta.task

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meta constant task  :
Type u → Type u

A task is a promise to produce a value later. They perform the same role as promises in JavaScript.

Instances for task
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meta constant task.get {α : Type u} (t : task α) :
α
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@[protected]
meta constant task.pure {α : Type u} (t : α) :
task α
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@[protected]
meta constant task.map {α : Type u} {β : Type v} (f : α → β) (t : task α) :
task β
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@[protected]
meta constant task.flatten {α : Type u} :
task (task α) → task α
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@[protected]
meta def task.bind {α : Type u} {β : Type v} (t : task α) (f : α → task β) :
task β
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meta def task.delay {α : Type u} (f : unit → α) :
task α