/// <summary>
/// Checks if XML document has one root element
/// </summary>
/// <param name="document"></param>
private void CheckDocumentElement(DOM.Document document)
{
int rootElementCount = 0;
foreach (var entity in document.Entities)
{
if (entity is DOM.Element)
{
rootElementCount++;
}
var scope = entity as Scope;
if (scope != null)
{
rootElementCount += CalcNumOfRootElements(scope);
}
if (entity is DOM.Alias)
{
rootElementCount += CalcNumOfRootElements((Alias)entity);
}
if (rootElementCount > 1)
{
break;
}
}
if (rootElementCount == 0)
{
Context.AddError(CompilerErrorFactory.DocumentMustHaveOneRootElement((Document)document,
document.Module.FileName, " at least"));
}
else if (rootElementCount > 1)
{
Context.AddError(CompilerErrorFactory.DocumentMustHaveOneRootElement((Document)document,
document.Module.FileName, " only"));
}
}
