24 lines
848 B
Text
24 lines
848 B
Text
/-
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Copyright (c) 2022 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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prelude
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import Lean.Environment
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namespace Lean
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builtin_initialize noncomputableExt : TagDeclarationExtension ← mkTagDeclarationExtension
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/-- Mark in the environment extension that the given declaration has been declared by the user as `noncomputable`. -/
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def addNoncomputable (env : Environment) (declName : Name) : Environment :=
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noncomputableExt.tag env declName
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/--
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Return true iff the user has declared the given declaration as `noncomputable`.
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Remark: we use this function only for introspection. It is currently not used by the code generator.
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-/
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def isNoncomputable (env : Environment) (declName : Name) : Bool :=
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noncomputableExt.isTagged env declName
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end Lean
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