lean4-htt/tests/lean/warningAsError.lean
2022-07-26 05:57:54 -07:00

10 lines
141 B
Text

def f (x : Nat) := x + 1
@[deprecated f]
def g (x : Nat) := x + 1
#eval g 0 -- warning
set_option warningAsError true
#eval g 0 -- error