43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
/-
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Copyright (c) 2022 Henrik Böving. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Henrik Böving
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-/
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import Lean
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import DocGen4.Process.Base
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import DocGen4.Process.NameInfo
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import DocGen4.Process.DefinitionInfo
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namespace DocGen4.Process
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open Lean Meta
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def getInstanceTypes (typ : Expr) : MetaM (Array Name) := do
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let (_, _, tail) ← forallMetaTelescopeReducing typ
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let args := tail.getAppArgs
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let (_, names) ← args.mapM (Expr.forEach · findName) |>.run .empty
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return names
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where
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findName : Expr → StateRefT (Array Name) MetaM Unit
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| .const name _ => modify (·.push name)
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| .sort .zero => modify (·.push "_builtin_prop")
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| .sort (.succ _) => modify (·.push "_builtin_typeu")
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| .sort _ => modify (·.push "_builtin_sortu")
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| _ => pure ()
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def InstanceInfo.ofDefinitionVal (v : DefinitionVal) : MetaM InstanceInfo := do
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let mut info ← DefinitionInfo.ofDefinitionVal v
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let some className ← isClass? v.type | unreachable!
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if let some instAttr ← getDefaultInstance v.name className then
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info := { info with attrs := info.attrs.push instAttr }
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let typeNames ← getInstanceTypes v.type
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return {
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toDefinitionInfo := info,
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className,
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typeNames
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}
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end DocGen4.Process
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