/// <summary>
/// Dump out an attribute.
/// </summary>
/// <param name="attribute">
/// The target attribute.
/// </param>
/// <param name="depth">
/// The current element depth.
/// </param>
static void DumpAttribute(XAttribute attribute, int depth)
{
AttributeLocation location = attribute.Annotation <AttributeLocation>();
Log.Information("{Indent}@{Name}='{Value}' ({StartLine},{StartColumn}) to ({EndLine},{EndColumn})",
new String(' ', depth * 4 + 4 /* Extra indent for attributes */),
attribute.Name,
attribute.Value,
location.Start.LineNumber, location.Start.ColumnNumber,
location.End.LineNumber, location.End.ColumnNumber
);
}
/// <summary>
/// Capture location information for the current element.
/// </summary>
void CaptureLocation()
{
Log.Verbose("[Capture{NodeType}Location] {Name} ({LineNumber},{ColumnNumber}) (IsEmpty={IsEmptyElement}, EmitEndElement={EmitEndElement}, ElementLocationStack={StackDepth})",
NodeType, Name, LineNumber, LinePosition, IsEmptyElement, _emitEndElement, DumpElementStack()
);
// This logic is pretty ugly, and needs serious reworking (would work better modeled as a state machine).
// It's functional, there are almost certainly edge-cases it will fail (e.g. the last element).
if (NodeType == XmlNodeType.Element)
{
ElementLocation elementLocation;
if (_emitEndElement)
{
// Element followed by element; capture the end of the previous element.
elementLocation = _elementLocationStack.Pop();
elementLocation.End = CurrentPosition.Move(columnCount: -1);
Log.Verbose("[Capture{NodeType}LocationEnd] {Name} ({StartLineNumber},{StartColumnNumber}-{EndLineNumber},{EndColumnNumber})",
NodeType, Name,
elementLocation.Start.LineNumber, elementLocation.Start.ColumnNumber,
elementLocation.End.LineNumber, elementLocation.End.ColumnNumber
);
_emitEndElement = false;
}
Log.Verbose("[Capture{NodeType}LocationStart] {Name} ({LineNumber},{ColumnNumber})",
NodeType, Name, LineNumber, LinePosition
);
// Capture the start of the new element.
elementLocation = new ElementLocation
{
Depth = Depth,
Start = CurrentPosition.Move(columnCount: -1)
};
_locations.Add(elementLocation);
_elementLocationStack.Push(elementLocation);
}
else if (NodeType == XmlNodeType.EndElement || _emitEndElement)
{
// Element, followed by whitespace / text, followed by element.
ElementLocation elementLocation = _elementLocationStack.Pop();
elementLocation.End = CurrentPosition;
Log.Verbose("[Capture{NodeType}LocationEnd] {Name} ({StartLineNumber},{StartColumnNumber}-{EndLineNumber},{EndColumnNumber})",
NodeType, Name,
elementLocation.Start.LineNumber, elementLocation.Start.ColumnNumber,
elementLocation.End.LineNumber, elementLocation.End.ColumnNumber
);
_emitEndElement = false;
}
else if (NodeType == XmlNodeType.Attribute)
{
// Attribute
_locations.Add(
AttributeLocation.Create(CurrentPosition, Name, Value)
);
}
else
{
// We don't care, but log it anyway to help track down weird edge-case behaviour.
Log.Verbose("[SkipCapture{NodeType}Location] {Name} ({LineNumber},{ColumnNumber})",
NodeType, Name, LineNumber, LinePosition
);
}
}
