public static async Task ComputeRefactoringAsync(RefactoringContext context, EnumDeclarationSyntax enumDeclaration)
{
EnumMemberDeclarationSyntax[] selectedMembers = GetSelectedMembers(enumDeclaration, context.Span).ToArray();
if (selectedMembers.Length > 1)
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
List <IFieldSymbol> fieldSymbols = GetFieldSymbols(selectedMembers, semanticModel, context.CancellationToken);
if (fieldSymbols.Count > 1)
{
var enumSymbol = semanticModel.GetDeclaredSymbol(enumDeclaration, context.CancellationToken) as INamedTypeSymbol;
if (enumSymbol != null)
{
object combinedValue = GetCombinedValue(fieldSymbols, enumSymbol);
if (combinedValue != null &&
!EnumHelper.IsValueDefined(enumSymbol, combinedValue))
{
string name = GetCombinedName(fieldSymbols);
EnumMemberDeclarationSyntax newEnumMember = GenerateEnumHelper.CreateEnumMember(enumSymbol, name, combinedValue);
int insertIndex = enumDeclaration.Members.IndexOf(selectedMembers.Last()) + 1;
context.RegisterRefactoring(
$"Generate enum member '{name}'",
cancellationToken => RefactorAsync(context.Document, enumDeclaration, newEnumMember, insertIndex, cancellationToken));
}
}
}
}
}
private static async Task <Document> RefactorAsync(
Document document,
EnumDeclarationSyntax enumDeclaration,
INamedTypeSymbol enumSymbol,
object value,
CancellationToken cancellationToken)
{
EnumMemberDeclarationSyntax newEnumMember = GenerateEnumHelper.CreateEnumMember(enumSymbol, "EnumMember", value);
EnumDeclarationSyntax newNode = enumDeclaration.AddMembers(newEnumMember);
return(await document.ReplaceNodeAsync(enumDeclaration, newNode, cancellationToken).ConfigureAwait(false));
}
private static Task <Document> RefactorAsync(
Document document,
EnumDeclarationSyntax enumDeclaration,
INamedTypeSymbol enumSymbol,
object value,
CancellationToken cancellationToken)
{
EnumMemberDeclarationSyntax newEnumMember = GenerateEnumHelper.CreateEnumMember(enumSymbol, Identifier.DefaultEnumMemberName, value);
EnumDeclarationSyntax newNode = enumDeclaration.AddMembers(newEnumMember);
return(document.ReplaceNodeAsync(enumDeclaration, newNode, cancellationToken));
}