ebd22c96ee
This PR ensures that failure in initial compilation marks the relevant definitions as `noncomputable`, inside and outside `noncomputable section`, so that follow-up errors/noncomputable markings are detected in initial compilation as well instead of somewhere down the pipeline. This may require additional `noncomputable` markers on definitions that depend on definitions inside `noncomputable section` but accidentally passed the new computability check. Reported at https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/Cryptic.20error.20message.20in.20new.20lean.20toolchain.3F.
28 lines
937 B
Text
28 lines
937 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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module
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prelude
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public import Lean.EnvExtension
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public section
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namespace Lean
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-- `sync` as it's written to from both main branch and codegen branch
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builtin_initialize noncomputableExt : TagDeclarationExtension ← mkTagDeclarationExtension (asyncMode := .sync)
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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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Returns `true` when the given declaration is tagged `noncomputable`.
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-/
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def isNoncomputable (env : Environment) (declName : Name) (asyncMode := noncomputableExt.toEnvExtension.asyncMode) : Bool :=
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noncomputableExt.isTagged (asyncMode := asyncMode) env declName
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end Lean
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