38 lines
1.4 KiB
Text
38 lines
1.4 KiB
Text
/-
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Copyright (c) 2021 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.Data.DeclarationRange
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import Lean.MonadEnv
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/-!
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# Environment extension for declaration ranges
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-/
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namespace Lean
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builtin_initialize builtinDeclRanges : IO.Ref (NameMap DeclarationRanges) ← IO.mkRef {}
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builtin_initialize declRangeExt : MapDeclarationExtension DeclarationRanges ← mkMapDeclarationExtension
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def addBuiltinDeclarationRanges (declName : Name) (declRanges : DeclarationRanges) : IO Unit :=
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builtinDeclRanges.modify (·.insert declName declRanges)
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def addDeclarationRanges [Monad m] [MonadEnv m] (declName : Name) (declRanges : DeclarationRanges) : m Unit := do
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modifyEnv fun env => declRangeExt.insert env declName declRanges
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def findDeclarationRangesCore? [Monad m] [MonadEnv m] (declName : Name) : m (Option DeclarationRanges) :=
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return declRangeExt.find? (← getEnv) declName
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def findDeclarationRanges? [Monad m] [MonadEnv m] [MonadLiftT BaseIO m] (declName : Name) : m (Option DeclarationRanges) := do
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let env ← getEnv
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let ranges ← if isAuxRecursor env declName || isNoConfusion env declName || (← isRec declName) then
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findDeclarationRangesCore? declName.getPrefix
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else
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findDeclarationRangesCore? declName
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match ranges with
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| none => return (← builtinDeclRanges.get (m := BaseIO)).find? declName
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| some _ => return ranges
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end Lean
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