/// <summary>
/// Get the XML object (if any) at the specified position in the project file.
/// </summary>
/// <param name="position">
/// The target position.
/// </param>
/// <returns>
/// The object, or <c>null</c> if no object was found at the specified position.
/// </returns>
public SyntaxNode GetXmlAtPosition(Position position)
{
if (!HasXml)
{
throw new InvalidOperationException($"XML for project '{ProjectFile.FullName}' is not loaded.");
}
int absolutePosition = XmlPositions.GetAbsolutePosition(position);
return(Xml.FindNode(position, XmlPositions));
}
/// <summary>
/// Get the expression's containing range.
/// </summary>
/// <param name="expression">
/// The MSBuild expression.
/// </param>
/// <param name="relativeToPosition">
/// The starting position of the <see cref="XSNode"/> that contains the expression.
/// </param>
/// <returns>
/// The containing <see cref="Range"/>.
/// </returns>
public Range GetRange(ExpressionNode expression, Position relativeToPosition)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
if (!HasXml)
{
throw new InvalidOperationException($"XML for project '{ProjectFile.FullName}' is not loaded.");
}
int absoluteBasePosition = XmlPositions.GetAbsolutePosition(relativeToPosition);
return(XmlPositions.GetRange(
absoluteBasePosition + expression.AbsoluteStart,
absoluteBasePosition + expression.AbsoluteEnd
));
}