package saccharine

type Expression interface {
	expression()
}

/** ------------------------------------------------------------------------- */

type Abstraction struct {
	Parameters []string
	Body       Expression
}

type Application struct {
	Abstraction Expression
	Arguments   []Expression
}

type Atom struct {
	Name string
}

type Clause struct {
	Statements []Statement
	Returns    Expression
}

func (Abstraction) expression() {}
func (Application) expression() {}
func (Atom) expression()        {}
func (Clause) expression()      {}