lean4-htt/tests/elab/grind_eq_bwd.lean
Garmelon 08eb78a5b2
chore: switch to new test/bench suite (#12590)
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.

For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
2026-02-25 13:51:53 +00:00

62 lines
1.5 KiB
Text
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

module
theorem dummy (x : Nat) : x = x :=
rfl
/--
error: invalid pattern for `dummy`
[@Lean.Grind.eqBwdPattern `[Nat] #0 #0]
the pattern does not contain constant symbols for indexing
-/
#guard_msgs in
attribute [grind ←=] dummy
def α : Type := sorry
def inv : αα := sorry
def mul : ααα := sorry
def one : α := sorry
theorem inv_eq {a b : α} (w : mul a b = one) : inv a = b := sorry
/--
trace: [grind.ematch.pattern] inv_eq: [@Lean.Grind.eqBwdPattern `[α] (inv #2) #1]
-/
#guard_msgs in
set_option trace.grind.ematch.pattern true in
attribute [grind ←=] inv_eq
example {a b : α} (w : mul a b = one) : inv a = b := by
grind
example {a b : α} (w : mul a b = one) : inv a = b := by
grind only [<-= inv_eq]
structure S where
f : Bool → α
h : mul (f true) (f false) = one
h' : mul (f false) (f true) = one
attribute [grind =] S.h S.h'
example (s : S) : inv (s.f true) = s.f false := by
grind
example (s : S) : inv (s.f true) = s.f false := by
grind only [<-= inv_eq, = S.h]
example (s : S) : s.f false = inv (s.f true) := by
grind
example (s : S) : a = false → s.f a = inv (s.f true) := by
grind
example (s : S) : a ≠ s.f false → a = inv (s.f true) → False := by
grind
/--
trace: [grind.ematch.instance] inv_eq: mul (s.f true) (s.f false) = one → inv (s.f true) = s.f false
[grind.ematch.instance] S.h: mul (s.f true) (s.f false) = one
-/
#guard_msgs (trace) in
set_option trace.grind.ematch.instance true in
example (s : S) : inv (s.f true) = s.f false := by
grind