private static StructDeclarationSyntax AddBaseType(StructDeclarationSyntax structDeclaration, BaseTypeSyntax baseType)
{
BaseListSyntax baseList = structDeclaration.BaseList;
if (baseList == null)
{
baseList = BaseList(baseType);
TypeParameterListSyntax typeParameterList = structDeclaration.TypeParameterList;
if (typeParameterList != null)
{
return(structDeclaration
.WithTypeParameterList(typeParameterList.WithoutTrailingTrivia())
.WithBaseList(baseList.WithTrailingTrivia(typeParameterList.GetTrailingTrivia())));
}
else
{
SyntaxToken identifier = structDeclaration.Identifier;
return(structDeclaration
.WithIdentifier(identifier.WithoutTrailingTrivia())
.WithBaseList(baseList.WithTrailingTrivia(identifier.TrailingTrivia)));
}
}
else
{
SeparatedSyntaxList <BaseTypeSyntax> types = baseList.Types;
BaseTypeSyntax lastType = types.LastOrDefault();
if (lastType == null ||
(types.Count == 1 && types[0].IsMissing))
{
SyntaxToken colonToken = baseList.ColonToken;
baseType = baseType
.WithLeadingTrivia(Space)
.WithTrailingTrivia(colonToken.TrailingTrivia);
baseList = baseList
.WithColonToken(colonToken.WithoutTrailingTrivia())
.WithTypes(SingletonSeparatedList(baseType));
return(structDeclaration.WithBaseList(baseList));
}
else
{
types = types
.Replace(lastType, lastType.WithoutTrailingTrivia())
.Add(baseType.WithTrailingTrivia(lastType.GetTrailingTrivia()));
return(structDeclaration.WithBaseList(baseList.WithTypes(types)));
}
}
}
public override TNode LastOrDefault() => SyntaxWrapper.Wrap(syntaxList.LastOrDefault());