public STObject Evaluate(InputSource source, Context context)
{
Source = source;
try {
Node root = source.Parse(Parser);
if (root == null)
return STUndefinedObject.Instance; // parser found empty string so aborted
if (STDebug.ShowParseTrees) {
var tr = Transcript.Instance;
if (tr != null)
root.PrintTo(tr.Out);
else
root.PrintTo(Console.Out);
}
return Evaluate (root, context);
} finally {
Source = null;
}
}
public ParseException(InputSource source, int lineNumber, string message)
: base(source, lineNumber, message)
{
}
public CompileException(InputSource source, int lineNumber, string message, Exception innerException)
: base(source, lineNumber, message, innerException)
{
}