protected virtual bool EvalInExpression(object item, NPathInExpression inExpression)
{
object testValue = EvalValue(item, inExpression.TestExpression);
foreach (object expression in inExpression.Values)
{
object value = EvalValue(item, expression);
int res = Comparer.Default.Compare(testValue, value);
if (res == 0)
{
return(true);
}
}
return(false);
}
protected virtual void EmitIn(NPathInExpression inExpression)
{
EmitExpression(inExpression.TestExpression);
Write(" in ( "); // do not localize
foreach (IValue expression in inExpression.Values)
{
EmitExpression(expression);
if (expression != inExpression.Values[inExpression.Values.Count - 1])
{
Write(",");
}
}
Write(" ) ");
}
private IValue ParseInExpression(IValue leftOperand)
{
NPathInExpression inExpression = new NPathInExpression();
inExpression.TestExpression = leftOperand;
tokenizer.GetCurrentToken("in", "in");
tokenizer.MoveNext();
tokenizer.GetCurrentToken("(", "(");
do
{
tokenizer.MoveNext();
IValue expression = ParseExpression();
inExpression.Values.Add(expression);
} while (tokenizer.GetCurrentToken().IsType("comma"));
tokenizer.GetCurrentToken(")", ")");
tokenizer.MoveNext();
return(inExpression);
}
protected virtual void EmitExpression(IValue expression)
{
if (expression is NPathNotExpression)
{
NPathNotExpression value = (NPathNotExpression)expression;
EmitNot(value);
}
if (expression is NPathFunction)
{
NPathFunction value = (NPathFunction)expression;
EmitFunction(value);
}
if (expression is NPathParameter)
{
NPathParameter value = (NPathParameter)expression;
EmitParameter(value);
}
if (expression is NPathNullValue)
{
NPathNullValue value = (NPathNullValue)expression;
EmitNullValue(value);
}
if (expression is NPathBetweenExpression)
{
NPathBetweenExpression value = (NPathBetweenExpression)expression;
EmitBetween(value);
}
if (expression is NPathBooleanValue)
{
NPathBooleanValue value = (NPathBooleanValue)expression;
EmitBooleanValue(value);
}
if (expression is NPathDecimalValue)
{
NPathDecimalValue value = (NPathDecimalValue)expression;
EmitDecimalValue(value);
}
if (expression is NPathDateTimeValue)
{
NPathDateTimeValue value = (NPathDateTimeValue)expression;
EmitDateTimeValue(value);
}
if (expression is NPathGuidValue)
{
NPathGuidValue value = (NPathGuidValue)expression;
EmitGuidValue(value);
}
if (expression is NPathStringValue)
{
NPathStringValue value = (NPathStringValue)expression;
EmitStringValue(value);
}
if (expression is NPathIdentifier)
{
NPathIdentifier propertyPath = (NPathIdentifier)expression;
EmitPropertyPath(propertyPath);
}
if (expression is NPathPropertyFilter)
{
NPathPropertyFilter propertyFilter = (NPathPropertyFilter)expression;
EmitPropertyFilter(propertyFilter);
}
if (expression is NPathParenthesisGroup)
{
NPathParenthesisGroup parenthesisGroup = (NPathParenthesisGroup)expression;
EmitParenthesisGroup(parenthesisGroup);
}
if (expression is NPathMathExpression)
{
NPathMathExpression mathExpression = (NPathMathExpression)expression;
EmitMathExpression(mathExpression);
}
if (expression is NPathCompareExpression)
{
NPathCompareExpression compareExpression = (NPathCompareExpression)expression;
EmitCompareExpression(compareExpression);
}
if (expression is NPathBooleanExpression)
{
NPathBooleanExpression boolExpression = (NPathBooleanExpression)expression;
EmitBooleanExpression(boolExpression);
}
if (expression is NPathInExpression)
{
NPathInExpression value = (NPathInExpression)expression;
EmitIn(value);
}
if (expression is NPathSearchFunction)
{
NPathSearchFunction value = (NPathSearchFunction)expression;
EmitSearchFunction(value);
}
}
