private static async Task ComputeRefactoringAsync(RefactoringContext context, SyntaxNode node, ExpressionSyntax expression)
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ITypeSymbol exceptionSymbol = semanticModel.GetTypeSymbol(expression, context.CancellationToken);
if (exceptionSymbol?.IsErrorType() == false &&
Symbol.IsException(exceptionSymbol, semanticModel))
{
ISymbol declarationSymbol = GetDeclarationSymbol(node.SpanStart, semanticModel, context.CancellationToken);
if (declarationSymbol != null)
{
var containingMember = await declarationSymbol
.DeclaringSyntaxReferences[0]
.GetSyntaxAsync(context.CancellationToken)
.ConfigureAwait(false) as MemberDeclarationSyntax;
if (containingMember != null)
{
SyntaxTrivia trivia = containingMember.GetSingleLineDocumentationComment();
if (trivia.IsKind(SyntaxKind.SingleLineDocumentationCommentTrivia))
{
var comment = trivia.GetStructure() as DocumentationCommentTriviaSyntax;
if (comment?.IsKind(SyntaxKind.SingleLineDocumentationCommentTrivia) == true &&
!ContainsException(comment, exceptionSymbol, semanticModel, context.CancellationToken))
{
ThrowInfo throwInfo1 = ThrowInfo.Create(node, exceptionSymbol);
IParameterSymbol parameterSymbol = throwInfo1.GetParameterSymbol(declarationSymbol, semanticModel, context.CancellationToken);
context.RegisterRefactoring(
"Add exception to documentation comment",
cancellationToken => RefactorAsync(context.Document, trivia, exceptionSymbol, parameterSymbol, cancellationToken));
foreach (ThrowInfo throwInfo2 in GetOtherUndocumentedExceptions(containingMember, f => node != f, semanticModel, context.CancellationToken))
{
if (throwInfo2.ExceptionSymbol != exceptionSymbol)
{
var infos = new List <ThrowInfo>();
infos.Add(throwInfo1);
infos.Add(throwInfo2);
context.RegisterRefactoring(
"Add all exceptions to documentation comment",
cancellationToken => RefactorAsync(context.Document, infos, containingMember, declarationSymbol, trivia, cancellationToken));
break;
}
}
}
}
}
}
}
}
public IParameterSymbol GetParameterSymbol(
SemanticModel semanticModel,
CancellationToken cancellationToken)
{
return(ThrowInfo?.GetParameterSymbol(semanticModel, cancellationToken));
}