private static bool EvaluateAndOperator(object left, object right)
{
IExpression expression = new AndExpression(new ConstantExpression(left), new ConstantExpression(right));
return (bool)expression.Evaluate(null);
}
private IExpression ParseBinaryLogicalExpressionLevelTwo()
{
IExpression expression = this.ParseBinaryExpressionZerothLevel();
if (expression == null)
return null;
while (this.TryParse(TokenType.Operator, "&&"))
{
Token oper = this.lexer.NextToken();
IExpression right = this.ParseBinaryExpressionZerothLevel();
expression = new AndExpression(expression, right);
}
return expression;
}