37 lines
982 B
Text
37 lines
982 B
Text
import Lean
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open Lean Meta
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def gen (declName : Name) : MetaM Unit := do
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let info ← getConstInfo declName
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IO.println (← ppExpr info.type)
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IO.println "---"
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forallTelescope info.type (cleanupAnnotations := true) fun xs type => do
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let r ← mkForallFVars xs type
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IO.println (← ppExpr r)
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/--
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info: {coll : Type u} →
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{idx : Type v} →
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{elem : outParam (Type w)} →
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{valid : outParam (coll → idx → Prop)} →
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[self : GetElem coll idx elem valid] → (xs : coll) → (i : idx) → valid xs i → elem
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---
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{coll : Type u} →
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{idx : Type v} →
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{elem : Type w} →
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{valid : coll → idx → Prop} → [self : GetElem coll idx elem valid] → (xs : coll) → (i : idx) → valid xs i → elem
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-/
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#guard_msgs in
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#eval gen ``GetElem.getElem
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def f (x := 0) (_ : x = x := by rfl) : Nat := x+1
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/--
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info: (x : optParam Nat 0) → autoParam (x = x) f._auto_1 → Nat
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---
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(x : Nat) → x = x → Nat
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-/
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#guard_msgs in
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#eval gen ``f
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