36 lines
858 B
Text
36 lines
858 B
Text
/-
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Copyright (c) 2020 Microsoft Corporation. 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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module
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prelude
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public import Init.Meta
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public section
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namespace Lean
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/-- Data for representing `open` commands -/
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inductive OpenDecl where
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| simple (ns : Name) (except : List Name)
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| explicit (id : Name) (declName : Name)
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deriving BEq
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namespace OpenDecl
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instance : Inhabited OpenDecl := ⟨simple Name.anonymous []⟩
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instance : ToString OpenDecl := ⟨fun decl =>
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match decl with
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| explicit id decl => toString id ++ " → " ++ toString decl
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| simple ns ex => toString ns ++ (if ex == [] then "" else " hiding " ++ toString ex)⟩
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end OpenDecl
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def rootNamespace := `_root_
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def removeRoot (n : Name) : Name :=
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n.replacePrefix rootNamespace Name.anonymous
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end Lean
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