public static async Task ComputeRefactoringAsync(RefactoringContext context, ThrowStatementSyntax throwStatement)
{
ExpressionSyntax expression = throwStatement.Expression;
if (expression?.IsMissing == false &&
context.Span.IsContainedInSpanOrBetweenSpans(throwStatement))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ITypeSymbol typeSymbol = semanticModel.GetTypeSymbol(expression, context.CancellationToken);
if (typeSymbol?.IsErrorType() == false &&
SyntaxAnalyzer.IsException(typeSymbol, semanticModel))
{
MemberDeclarationSyntax member = GetContainingMember(throwStatement);
if (member != null)
{
SyntaxTrivia trivia = member.GetSingleLineDocumentationComment();
if (trivia.IsSingleLineDocumentationCommentTrivia())
{
var comment = trivia.GetStructure() as DocumentationCommentTriviaSyntax;
if (comment?.IsKind(SyntaxKind.SingleLineDocumentationCommentTrivia) == true)
{
string exceptionName = typeSymbol
.ToMinimalDisplayString(semanticModel, trivia.FullSpan.End)
.Replace('<', '{')
.Replace('>', '}');
if (!ContainsException(comment, typeSymbol, semanticModel, context.CancellationToken))
{
context.RegisterRefactoring(
"Add exception to documentation comment",
cancellationToken => RefactorAsync(context.Document, trivia, exceptionName, cancellationToken));
}
}
}
}
}
}
}