lean4-htt/library/init/meta/attribute.lean

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/-
Copyright (c) 2016 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sebastian Ullrich
-/
prelude
import init.meta.tactic
meta constant attribute.get_instances : name → tactic (list name)
meta constant attribute.fingerprint : name → tactic nat
structure user_attribute :=
(name : name)
(descr : string)
/- Registers a new user-defined attribute. The argument must be the name of a definition of type
`user_attribute` or a sub-structure. -/
meta constant attribute.register : name → command
meta structure caching_user_attribute (A : Type) extends user_attribute :=
(mk_cache : list _root_.name → tactic A)
(dependencies : list _root_.name)
meta constant caching_user_attribute.get_cache : Π {A : Type}, caching_user_attribute A → tactic A