b81dd3e7ad
This PR adds the tactic `expose_names`. It creates a new goal whose local context has been "exposed" so that every local declaration has a clear, accessible name. If no local declarations require renaming, the original goal is returned unchanged. This tactic will be used to improve `try?`.
15 lines
443 B
Text
15 lines
443 B
Text
/-
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Copyright (c) 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Leonardo de Moura
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-/
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prelude
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import Lean.Meta.Tactic.ExposeNames
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import Lean.Elab.Tactic.Basic
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namespace Lean.Elab.Tactic
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@[builtin_tactic Lean.Parser.Tactic.exposeNames] def evalExposeNames : Tactic := fun _ =>
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liftMetaTactic1 fun mvarId => mvarId.exposeNames
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end Lean.Elab.Tactic
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