protected internal virtual int write(StringTemplate self, Object o, StringTemplateWriter outWriter, Object separator)
{
if (o == null)
{
return 0;
}
int n = 0;
try
{
if (o is StringTemplate)
{
StringTemplate stToWrite = (StringTemplate) o;
// failsafe: perhaps enclosing instance not set
// Or, it could be set to another context! This occurs
// when you store a template instance as an attribute of more
// than one template (like both a header file and C file when
// generating C code). It must execute within the context of
// the enclosing template.
stToWrite.setEnclosingInstance(self);
// if self is found up the enclosing instance chain, then
// infinite recursion
if (StringTemplate.inLintMode() && StringTemplate.isRecursiveEnclosingInstance(stToWrite))
{
// throw exception since sometimes eval keeps going
// even after I ignore this write of o.
throw new System.SystemException("infinite recursion to " + stToWrite.getTemplateDeclaratorString() + " referenced in " + stToWrite.getEnclosingInstance().getTemplateDeclaratorString() + "; stack trace:\n" + stToWrite.getEnclosingInstanceStackTrace());
}
else
{
n = stToWrite.write(outWriter);
}
return n;
}
// normalize anything iteratable to iterator
o = convertAnythingIteratableToIterator(o);
if (o is IEnumerator)
{
IEnumerator iter = (IEnumerator) o;
String separatorString = null;
if (separator != null)
{
separatorString = computeSeparator(self, outWriter, separator);
}
int i = 0;
int charWrittenForValue = 0;
Object iterValue = null;
while (iter.MoveNext())
{
if (i > 0)
{
bool valueIsPureConditional = false;
if (iterValue is StringTemplate)
{
StringTemplate iterValueST = (StringTemplate) iterValue;
IList chunks = (IList) iterValueST.getChunks();
Expr firstChunk = (Expr) chunks[0];
valueIsPureConditional = firstChunk is ConditionalExpr && ((ConditionalExpr) firstChunk).getElseSubtemplate() == null;
}
bool emptyIteratedValue = valueIsPureConditional && charWrittenForValue == 0;
if (!emptyIteratedValue && separator != null)
{
n += outWriter.write(separatorString);
}
}
iterValue = iter.Current;
charWrittenForValue = write(self, iterValue, outWriter, separator);
n += charWrittenForValue;
i++;
}
}
else
{
AttributeRenderer renderer = self.getAttributeRenderer(o.GetType());
if ( renderer!=null )
{
n = outWriter.write(renderer.ToString(o));
}
else
{
n = outWriter.write(o.ToString());
}
return n;
}
}
catch (System.IO.IOException io)
{
self.error("problem writing object: " + o, io);
}
return n;
}
