private FieldVariableTransformationResult TransformFieldVariable(
VariableDeclaratorSyntax variableNode,
FieldVariableTransformationResult result,
bool canCopy)
{
var variableResult = result.AnalyzationResult;
var conversion = variableResult.Conversion;
if (conversion == FieldVariableConversion.Ignore || !canCopy)
{
return(result);
}
var startVariableSpan = variableResult.Node.Span.Start;
variableNode = variableNode.WithAdditionalAnnotations(new SyntaxAnnotation(result.Annotation));
startVariableSpan -= variableNode.SpanStart;
// First we need to annotate nodes that will be modified in order to find them later on.
// We cannot rely on spans after the first modification as they will change
var typeReferencesAnnotations = new List <string>();
foreach (var typeReference in variableResult.TypeReferences.Where(o => o.TypeAnalyzationResult.Conversion == TypeConversion.NewType))
{
var reference = typeReference.ReferenceLocation;
var refSpanStart = reference.Location.SourceSpan.Start - startVariableSpan;
var nameNode = variableNode.GetSimpleName(refSpanStart, reference.Location.SourceSpan.Length, typeReference.IsCref);
var annotation = Guid.NewGuid().ToString();
variableNode = variableNode.ReplaceNode(nameNode, nameNode.WithAdditionalAnnotations(new SyntaxAnnotation(annotation)));
typeReferencesAnnotations.Add(annotation);
}
// Modify references
foreach (var refAnnotation in typeReferencesAnnotations)
{
var nameNode = variableNode.GetAnnotatedNodes(refAnnotation).OfType <SimpleNameSyntax>().First();
variableNode = variableNode
.ReplaceNode(nameNode, nameNode.WithIdentifier(Identifier(nameNode.Identifier.Value + "Async").WithTriviaFrom(nameNode.Identifier)));
}
result.Transformed = variableNode;
return(result);
}