50 lines
928 B
Text
50 lines
928 B
Text
import Lean
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open Lean.Elab
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structure A where
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val : Nat → Nat
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structure B where
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pair : A × A
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set_option trace.Elab.info true
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def f (x : Nat) : Nat × Nat :=
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let y := ⟨x, x⟩
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id y
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def h : (x y : Nat) → (b : Bool) → x + 0 = x :=
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fun x y b => by
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simp
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def f2 : (x y : Nat) → (b : Bool) → Nat :=
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fun x y b =>
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let (z, w) := (x + y, x - y)
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let z1 := z + w
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z + z1
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def f3 (s : Nat × Array (Array Nat)) : Array Nat :=
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s.2[1]!.push s.1
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def f4 (arg : B) : Nat :=
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arg.pair.fst.val 0
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def f5 (x : Nat) : B := {
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pair := ({ val := id }, { val := id })
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}
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open Nat in
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#print xor
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instance : Inhabited Nat where
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macro
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-- `x` and `y` should both have a signature and a body binder definition
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set_option pp.raw true
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def f6 (x y : Nat) : x = x :=
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let rec f7 (x y : Nat) : x = x := Eq.refl x
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f7 x y
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-- should not have `original` span of `pair` reference
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def f7 (b : B) : B := { b with }
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