public void ConvertFrom_Boolean_ReturnsBool()
{
var value = new Boolean(true);
var result = ValueTypeConverter.ConvertFrom <bool>(value);
Assert.True(result);
}
private IExpression Atom()
{
IExpression atom;
switch (lookAhead.Type)
{
case ExpressionTokenType.Identifier:
return(Identifier());
case ExpressionTokenType.LeftParen:
NextToken();
atom = Expression();
if (lookAhead.Type != ExpressionTokenType.RightParen)
{
throw UnexpectedTokenException("Expected ')'.");
}
atom = new ParenthesisExpression(atom);
break;
case ExpressionTokenType.Text:
var text = lookAhead.Sequence.Substring(1, lookAhead.Sequence.Length - 2);
atom = new Text(text);
break;
case ExpressionTokenType.Integer:
var integer = long.Parse(lookAhead.Sequence, CultureInfo.InvariantCulture);
atom = new Integer(integer);
break;
case ExpressionTokenType.Decimal:
var number = double.Parse(lookAhead.Sequence, CultureInfo.InvariantCulture);
atom = new Number(number);
break;
case ExpressionTokenType.True:
case ExpressionTokenType.False:
var boolean = lookAhead.Sequence.ToLowerInvariant() == "true";
atom = new Boolean(boolean);
break;
case ExpressionTokenType.RegexPattern:
var pattern = lookAhead.Sequence.Substring(1, lookAhead.Sequence.Length - 2);
atom = new RegExp(pattern);
break;
default:
throw UnexpectedTokenException();
}
NextToken();
return(atom);
}
