private static void ComputeRefactoring(
RefactoringContext context,
SyntaxNode node,
BlockSyntax body,
SemanticModel semanticModel)
{
if (body?.ContainsYieldReturn() != true)
{
return;
}
if (!(semanticModel.GetDeclaredSymbol(node, context.CancellationToken) is IMethodSymbol methodSymbol))
{
return;
}
ITypeSymbol type = GetElementType(methodSymbol.ReturnType, semanticModel);
if (type?.IsErrorType() != false)
{
return;
}
context.RegisterRefactoring(
"Use List<T> instead of yield",
cancellationToken => RefactorAsync(context.Document, type, body, body.Statements, cancellationToken),
RefactoringIdentifiers.UseListInsteadOfYield);
}