Labels.ExpressionSourcetype t = | IntegralNumber of string| RealNumber of string| TimeNumber of string| Null| UOp of UnaryOperator.t| BOp of BinaryOperator.t| Cond| Paren| Tagged of Common.identifier| Inside| Concat| EmptyQueue| Last| MinTypeMax| Cast| Constraint| ConstraintIf| ConstraintForeach| ConstraintSet| Stream| PreIncr| PreDecr| PostIncr| PostDecr| OperatorAssignment of AssignmentOperator.t| SystemFCall of Common.identifier| SystemTCall of SystemTask.t| TfCall of Common.identifier| MethodCall of Common.identifier| ArrayMethodCallUnique| ArrayMethodCallAnd| ArrayMethodCallOr| ArrayMethodCallXor| CycleDelayConstRange| ConstantRange| ClassNew| ClassNewA