public override object Execute(IContext context, Stream writer)
{
if (_test != null && Util.ToBool(_test.Execute(context, writer)))
{
_statements.Execute(context, writer);
}
else if (_elseStatements != null)
{
_elseStatements.Execute(context, writer);
}
return(null);
}
public override object Execute(IContext context, Stream writer)
{
if (_init != null)
{
EvalCollection(context, _init, writer);
}
while ((_test != null) && Util.ToBool(_test.Execute(context, writer)))
{
_blockStatement.Execute(context, writer);
EvalCollection(context, _inc, writer);
}
return(null);
}
public override object Execute(IContext context, Stream writer)
{
object obj = _collection.Execute(context, writer);
object varData = null;
if (context.ContainsKey(_varName))
{
varData = context[_varName];
}
if (obj is IEnumerable)
{
IEnumerable em = (IEnumerable)obj;
int index = 0;
bool isOdd = true;
string indexName = _varName + "_index";
string oddName = _varName + "_odd";
object indexData;
object oddData;
context.TryGetValue(indexName, out indexData);
context.TryGetValue(oddName, out oddData);
foreach (object o in em)
{
try
{
context[_varName] = o;
context[indexName] = index++;
context[oddName] = isOdd;
_blockStatement.Execute(context, writer);
isOdd = !isOdd;
context.Remove(_varName);
context.Remove(indexName);
context.Remove(oddName);
}
catch (BreakException)
{
break;
}
catch (ContinueException)
{
continue;
}
}
if (indexData != null)
{
context[indexName] = indexData;
}
if (oddData != null)
{
context[oddName] = oddData;
}
}
else
{
if (obj != null)
{
PropertyInfo[] properties = obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
foreach (PropertyInfo info in properties)
{
try
{
context[_varName] = info.GetValue(obj, null);
_blockStatement.Execute(context, writer);
context.Remove(_varName);
}
catch (BreakException)
{
break;
}
catch (ContinueException)
{
continue;
}
}
}
}
if (varData != null)
{
context[_varName] = varData;
}
return(null);
}
