lean4-htt/tests/elab_fail/241.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

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def ex1 : IO Unit := do
let mut xs : Array Nat := #[]
let xs := xs -- Error
xs := xs.push 0
IO.println xs
def ex2 : IO Unit := do
let mut xs : Array Nat := #[]
let (xs, _) := (xs, 4) -- Error
xs := xs.push 0
IO.println xs
def ex3 : IO Unit := do
let mut xs : Array Nat := #[]
match (1, 2) with
| (xs, ys) => -- Error
xs := xs.push 0
IO.println xs
def ex4 : IO Unit := do
let mut xs : Array Nat := #[]
let (xs, _) ← pure (xs, 4) -- Error
xs := xs.push 0
IO.println xs
def ex5 : IO Unit := do
let mut xs : Array Nat := #[]
let xs ← pure xs -- Error
xs := xs.push 0
IO.println xs
def ex6 : IO Unit := do
let mut xs : Array Nat := #[]
if let some xs ← pure (some 4) then -- Error
IO.println xs
else
pure ()
def ex7 : IO Unit := do
let mut xs : Array Nat := #[]
if let some xs := some 4 then -- Error
IO.println xs
else
pure ()
def ex8 : IO Unit := do
let mut xs : Array Nat := #[]
if let some xs ← pure (some 4) then -- Error
IO.println xs
else
pure ()
def ex9 : IO Unit := do
let mut xs : Array Nat := #[]
try
IO.println xs
catch
| IO.Error.userError xs => -- Error
pure ()
| _ =>
pure ()
def ex10 : IO Unit := do
let mut xs : Array Nat := #[]
try
IO.println xs
catch xs => -- Error
pure ()
def ex11 : IO Unit := do
let mut xs : Array (Nat × Nat) := #[(1,2)]
for (xs, y) in xs do -- Error
xs := xs.push (0, 0)
IO.println xs
def ex12 : IO Unit := do
let mut xs : Array Nat := #[1,2,3]
for xs in xs do -- Error
xs := xs.push 0
IO.println xs
def ex13 : IO Unit := do
let mut xs : Array Nat := #[1,2,3]
for a in [:10], xs in [1,2,3] do -- Error
xs := xs.push 0
IO.println xs