void RaiseError(string message)
{
var token = this.CurrentToken();
Position pos = token != null?this.GetPosition(token.StartPos) : null;
string fileName = pos != null ? pos.FileName : null;
bool atEof = token == null;
string errorMessage;
if (pos != null)
{
var startPos = pos;
var endPos = this.GetPosition(token.EndPos);
var lines = Utils.ExtractRelevantSource(GetSourceFile().Content.Split('\n'), startPos, endPos);
errorMessage = String.Format("{0}\n{1}\n{2}", message, lines [0], lines [1]);
}
else
{
errorMessage = message;
}
var error = new ShovelException();
error.Message = errorMessage;
if (pos != null)
{
error.Line = pos.Line;
error.Column = pos.Column;
}
else
{
error.AtEof = atEof;
}
error.FileName = fileName;
throw error;
}
void RaiseErrorAt(string message, int?startPosition, int?endPosition)
{
Position pos = startPosition != null?this.GetPosition(startPosition.Value) : null;
string fileName = pos != null ? pos.FileName : null;
bool atEof = startPosition == null && endPosition == null;
string errorMessage;
if (pos != null)
{
var startPos = pos;
var endPos = this.GetPosition(endPosition.Value);
var lines = Utils.ExtractRelevantSource(GetSourceFile().Content.Split('\n'), startPos, endPos);
errorMessage = String.Format("{0}\n{1}\n{2}", message, lines[0], lines[1]);
}
else
{
errorMessage = message;
}
var error = new ShovelException();
error.ShovelMessage = errorMessage;
if (pos != null)
{
error.Line = pos.Line;
error.Column = pos.Column;
}
else
{
error.AtEof = atEof;
}
error.FileName = fileName;
throw error;
}
public Either(ShovelException error)
{
this.Error = error;
}