private static void TestRpnPrinter()
{
// (1 + 2) * (4 - 3) => 1 2 + 4 3 - *
Expr expression =
new Expr.Binary(
new Expr.Grouping(
new Expr.Binary(
new Expr.Literal(1),
new Token(TokenType.PLUS, "+", null, 1),
new Expr.Literal(2)
)
),
new Token(TokenType.STAR, "*", null, 1),
new Expr.Grouping(
new Expr.Binary(
new Expr.Literal(4),
new Token(TokenType.MINUS, "-", null, 1),
new Expr.Literal(3)
)
)
);
var printer = new RpnPrinter();
Console.WriteLine(expression.Accept(printer));
Console.ReadLine();
}
private static void TestAstPrinter()
{
// -123 * (45.67) => (* (- 123) (group 45.67))
Expr expression =
new Expr.Binary(
new Expr.Unary(
new Token(TokenType.MINUS, "-", null, 1),
new Expr.Literal(123)
),
new Token(TokenType.STAR, "*", null, 1),
new Expr.Grouping(
new Expr.Literal(45.67)
)
);
var printer = new AstPrinter();
Console.WriteLine(expression.Accept(printer));
Console.ReadLine();
}