public static void AreEqual(Expression expected, Expression actual, string message = "")
{
Assert.AreEqual(expected.GetType(), actual.GetType(), message + "/Type");
if (expected is SpaceGroupExpression) {
AreEqual((SpaceGroupExpression)expected, (SpaceGroupExpression)actual, message);
} else if (expected is CommaGroupExpression) {
AreEqual((CommaGroupExpression)expected, (CommaGroupExpression)actual, message);
} else if (expected is UnitExpression) {
AreEqual((UnitExpression)expected, (UnitExpression)actual, message);
} else if (expected is NumberExpression) {
AreEqual((NumberExpression)expected, (NumberExpression)actual, message);
} else if (expected is LiteralExpression) {
AreEqual((LiteralExpression)expected, (LiteralExpression)actual, message);
} else if (expected is AddExpression) {
AreEqual((AddExpression)expected, (AddExpression)actual, message);
} else {
throw new AssertionException("unknown value type " + expected.GetType().Name);
}
}
private static Expression ProcessBinaryExpression(Token opToken, Expression left, TokensQueue tokens)
{
var tokenPriority = GetPriority(opToken.Type);
var other = ParseWithPriority(tokens, tokenPriority + 1);
switch (opToken.Type) {
case TokenType.Plus: return new AddExpression(left, other);
case TokenType.Minus: return new SubExpression(left, other);
case TokenType.Multiply: return new MulExpression(left, other);
case TokenType.Divide: return new DivExpression(left, other);
case TokenType.Percentage: return new ModExpression(left, other);
case TokenType.Whitespace:
if (left is SpaceGroupExpression) {
return ((SpaceGroupExpression)left).Add(other);
}
return new SpaceGroupExpression(left, other);
case TokenType.Comma:
if (left is CommaGroupExpression) {
return ((CommaGroupExpression)left).Add(other);
}
return new CommaGroupExpression(left, other);
default:
throw new TokenException("unexpected operator " + opToken.Type, opToken);
}
}
public RoundFunctionExpression(Expression inner)
{
_inner = inner;
}
public SubExpression(Expression left, Expression right)
: base(left, right)
{
}
public NegateExpression(Expression inner)
: base(inner)
{
}