/// <summary>
/// Searches for extension methods exactly called 'GetAwaiter'. Returns
/// <see cref="SymbolReference"/>s to the <see cref="INamespaceSymbol"/>s that contain
/// the static classes that those extension methods are contained in.
/// </summary>
private async Task <ImmutableArray <SymbolReference> > GetReferencesForGetAwaiterAsync(SearchScope searchScope)
{
searchScope.CancellationToken.ThrowIfCancellationRequested();
if (_owner.CanAddImportForGetAwaiter(_diagnosticId, _syntaxFacts, _node))
{
var type = _owner.GetAwaitInfo(_semanticModel, _syntaxFacts, _node, searchScope.CancellationToken);
if (type != null)
{
return(await GetReferencesForExtensionMethodAsync(searchScope, WellKnownMemberNames.GetAwaiter, type,
m => m.IsValidGetAwaiter()).ConfigureAwait(false));
}
}
return(ImmutableArray <SymbolReference> .Empty);
}
