lean4-htt/tests/elab_fail/defInst.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 Foo := List Nat
def test (x : Nat) : Foo :=
[x, x+1, x+2]
#eval test 4
#check fun (x y : Foo) => x == y -- Error
deriving instance BEq, Repr for Foo
#eval test 4
#check fun (x y : Foo) => x == y
def Boo := List (String × String)
deriving BEq, Repr, DecidableEq
def mkBoo (s : String) : Boo :=
[(s, s)]
#eval mkBoo "hello"
#eval mkBoo "hell" == mkBoo "hello"
#eval mkBoo "hello" == mkBoo "hello"
#eval mkBoo "hello" = mkBoo "hello"
def M := ReaderT String (StateT Nat IO)
deriving Monad, MonadState, MonadReader
#print instMonadM
def action : M Unit := do
modify (· + 1)
dbg_trace "{← read}"