/// <summary>
/// Searches for extension methods exactly called 'Deconstruct'. 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> > GetReferencesForDeconstructAsync(SearchScope searchScope)
{
searchScope.CancellationToken.ThrowIfCancellationRequested();
if (_owner.CanAddImportForDeconstruct(_diagnosticId, _node))
{
var type = _owner.GetDeconstructInfo(_semanticModel, _node, searchScope.CancellationToken);
if (type != null)
{
// Note: we could check that the extension methods have the right number of out-params.
// But that would involve figuring out what we're trying to deconstruct into. For now
// we'll just be permissive, with the assumption that there won't be that many matching
// 'Deconstruct' extension methods for the type of node that we're on.
return(await GetReferencesForExtensionMethodAsync(
searchScope, "Deconstruct", type,
m => m.ReturnsVoid).ConfigureAwait(false));
}
}
return(ImmutableArray <SymbolReference> .Empty);
}
