62f14514da
This PR updates various error messages produced by or associated with built-in tactics and adapts their formatting to current conventions.
77 lines
1.8 KiB
Text
77 lines
1.8 KiB
Text
/-!
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Tests for `partial_fixpoint` with explicit proofs
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-/
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/-- warning: declaration uses 'sorry' -/
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#guard_msgs in
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def nullary (x : Nat) : Option Unit := nullary (x + 1)
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partial_fixpoint monotonicity sorry
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-- Check for metavariables
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set_option pp.mvars.anonymous false in
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/--
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error: don't know how to synthesize placeholder for argument 'a'
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context:
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⊢ Lean.Order.monotone fun f x => f (x + 1)
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-/
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#guard_msgs in
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def nullarya (x : Nat) : Option Unit := nullarya (x + 1)
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partial_fixpoint monotonicity id _
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def nullaryb (x : Nat) : Option Unit := nullaryb (x + 1)
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partial_fixpoint monotonicity fun _ _ a _ => a _
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/-- info: nullaryb.eq_1 (x : Nat) : nullaryb x = nullaryb (x + 1) -/
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#guard_msgs in #check nullaryb.eq_1
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-- Type error
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/--
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error: Type mismatch
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()
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has type
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Unit
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of sort `Type` but is expected to have type
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Lean.Order.monotone fun f x => f (x + 1)
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of sort `Prop`
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-/
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#guard_msgs in
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def nullary2 (x : Nat) : Option Unit := nullary2 (x + 1)
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partial_fixpoint monotonicity ()
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-- Good indent (bad indents are tested in partial_fixpoint_parseerrors
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def nullary4 (x : Nat) : Option Unit := nullary4 (x + 1)
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partial_fixpoint monotonicity
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fun _ _ a x => a (x + 1)
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-- Tactics
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/-- info: Try this: exact fun x y a x => a (x + 1) -/
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#guard_msgs in
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def nullary6 (x : Nat) : Option Unit := nullary6 (x + 1)
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partial_fixpoint monotonicity by
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exact?
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#guard_msgs in
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def nullary7 (x : Nat) : Option Unit := nullary7 (x + 1)
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partial_fixpoint monotonicity by
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apply Lean.Order.monotone_of_monotone_apply
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intro y
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apply Lean.Order.monotone_apply
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apply Lean.Order.monotone_id
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-- Mutual
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mutual
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def mutual1 (x : Nat) : Option Unit := mutual2 (x + 1)
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partial_fixpoint monotonicity fun _ _ a x => a.2 (x + 1)
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def mutual2 (x : Nat) : Option Unit := mutual1 (x + 1)
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partial_fixpoint monotonicity fun _ _ a x => a.1 (x + 1)
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end
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