Files
lean4/tests/elab/anonymous_ctor_error_msg.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

46 lines
1002 B
Lean4

set_option pp.mvars false
structure Foo := (n : Nat)
def Foo.sum (xs : List Foo) : Foo :=
xs.foldl (λ s x => s.n + x.n) 0
/--
info: let x1 := { n := 1 };
let x2 := { n := 2 };
let x3 := { n := 3 };
let x5 := { n := 5 };
let x6 := { n := 6 };
Foo.sum [x1, x2, x3, x5, x6] : Foo
-/
#guard_msgs in
#check
let x1 := 1
let x2 := 2
let x3 := 3
-- let x4 := ⟨4⟩; -- If this line is uncommented we get the error at `⟨`
let x5 := 5
let x6 := 6
Foo.sum [x1, x2, x3, x5, x6]
/--
error: Invalid `⟨...⟩` notation: The expected type of this term could not be determined
---
info: let x1 := { n := 1 };
let x2 := { n := 2 };
let x3 := { n := 3 };
let x4 := ?_;
let x5 := { n := 5 };
let x6 := { n := 6 };
Foo.sum [x1, x2, x3, x5, x6] : Foo
-/
#guard_msgs in
#check
let x1 := 1
let x2 := 2
let x3 := 3
let x4 := 4; -- If this line is uncommented we get the error at `⟨`
let x5 := 5
let x6 := 6
Foo.sum [x1, x2, x3, x5, x6]