37 lines
1.1 KiB
Text
37 lines
1.1 KiB
Text
/-
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Copyright (c) 2019 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 Lean.EnvExtension
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public import Lean.PrivateName
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public section
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namespace Lean
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builtin_initialize protectedExt : TagDeclarationExtension ← mkTagDeclarationExtension
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def addProtected (env : Environment) (n : Name) : Environment :=
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protectedExt.tag env n
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def isProtected (env : Environment) (n : Name) : Bool :=
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protectedExt.isTagged env n
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def mkPrivateName (env : Environment) (n : Name) : Name :=
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-- If name is already private, remove previous suffix first. We need to ensure the resulting name
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-- is private to *this* module.
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mkPrivateNameCore env.mainModule <| privateToUserName n
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def isInaccessiblePrivateName (env : Environment) (n : Name) : Bool :=
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if env.header.isModule then
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-- Allow access through `import all`.
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env.isExporting && isPrivateName n
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else match privateToUserName? n with
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| some userName => mkPrivateName env userName != n
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| _ => false
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end Lean
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