imports
{
import CCO.SourcePos  (SourcePos)
}

-------------------------------------------------------------------------------
-- Syntax
-------------------------------------------------------------------------------

{
-- | Type of numerals.
type Num_ = Int
}

data Tm
  | Tm  pos :: {SourcePos}  t :: Tm_

data Tm_
  | Num     n :: {Num_}
  | False_
  | True_
  | If      t1 :: Tm  t2 :: Tm  t3 :: Tm
  | Add     t1 :: Tm  t2 :: Tm
  | Sub     t1 :: Tm  t2 :: Tm
  | Mul     t1 :: Tm  t2 :: Tm
  | Div     t1 :: Tm  t2 :: Tm
  | Lt      t1 :: Tm  t2 :: Tm
  | Eq      t1 :: Tm  t2 :: Tm
  | Gt      t1 :: Tm  t2 :: Tm