private Namespace GetNamespace(TextStream textStream, Document document)
{
Namespace ns = null;
Dictionary <string, Namespace> lookup;
List <string> parts = new List <string>();
while (textStream.GoToPreviousToken() && textStream.Token.Key == "DotOperatorToken")
{
textStream.GoToPreviousToken();
IToken token = textStream.PeekToken();
if (token.Key != "IdentifierToken")
{
break;
}
parts.Insert(0, document.GetTokenText(token));
}
foreach (string part in parts)
{
if (ns == null)
{
lookup = m_scriptEngineDefinition.NamespaceLookup;
}
else
{
lookup = ns.NamespaceLookup;
}
if (!lookup.TryGetValue(part, out ns))
{
return(null);
}
}
return(ns);
}
private Function GetFunction(TextStream textStream, Document document)
{
int nesting = 0;
while (nesting != -1)
{
if (textStream.TokenIndex == 0)
{
return(null);
}
textStream.SeekToken(-1);
switch (textStream.PeekToken().Key)
{
case "OpenParenthesisToken":
nesting--;
break;
case "CloseParenthesisToken":
nesting++;
break;
}
}
if (!textStream.GoToPreviousToken())
{
return(null);
}
string functionName;
if (textStream.Token.Key == "IdentifierToken")
{
functionName = document.GetTokenText(textStream.Token);
}
else
{
return(null);
}
/*if (textStream.TokenIndex == 0)
* return null;
*
* textStream.SeekToken(-1);*/
Namespace ns = GetNamespace(textStream, document);
if (ns == null)
{
return(null);
}
foreach (Function f in ns.Functions)
{
if (f.Name == functionName)
{
return(f);
}
}
return(null);
}