public async Task <IEnumerable <VsExpansion> > GetAvailableSnippetsAsync()
{
if (_expansionMgr == null)
{
return(Enumerable.Empty <VsExpansion>());
}
try {
var enumerator = await _expansionMgr.EnumerateExpansionsAsync(CommonGuidList.guidPythonLanguageServiceGuid, 1, null, 0, 0, 0);
if (enumerator == null)
{
return(null);
}
var res = new List <VsExpansion>();
foreach (var e in COMEnumerable.ToList <VsExpansion>(enumerator.Next))
{
res.Add(e);
}
return(res);
} catch (Exception ex) {
Debug.Fail(ex.ToUnhandledExceptionMessage(GetType()));
return(Enumerable.Empty <VsExpansion>());
}
}
private async Task PopulateSnippetCacheAsync(IExpansionManager expansionManager)
{
AssertIsBackground();
var expansionEnumerator = await expansionManager.EnumerateExpansionsAsync(
_languageGuidForSnippets,
0, // shortCutOnly
Array.Empty <string>(), // types
0, // countTypes
1, // includeNULLTypes
1 // includeDulicates: Allows snippets with the same title but different shortcuts
).ConfigureAwait(false);
// The rest of the process requires being on the UI thread, see the explanation on
// PopulateSnippetCacheFromExpansionEnumeration for details
await ThreadingContext.JoinableTaskFactory.SwitchToMainThreadAsync();
PopulateSnippetCacheFromExpansionEnumeration(expansionEnumerator);
}
private async Task PopulateSnippetCacheAsync(IExpansionManager expansionManager)
{
AssertIsBackground();
var expansionEnumerator = await expansionManager.EnumerateExpansionsAsync(
_languageGuidForSnippets,
0, // shortCutOnly
Array.Empty <string>(), // types
0, // countTypes
1, // includeNULLTypes
1 // includeDulicates: Allows snippets with the same title but different shortcuts
).ConfigureAwait(false);
// The rest of the process requires being on the UI thread, see the explanation on
// PopulateSnippetCacheFromExpansionEnumeration for details
await Task.Factory.StartNew(() => PopulateSnippetCacheFromExpansionEnumeration(expansionEnumerator),
CancellationToken.None,
TaskCreationOptions.None,
ForegroundTaskScheduler).ConfigureAwait(false);
}
private async Task PopulateSnippetCacheAsync(IExpansionManager expansionManager)
{
AssertIsBackground();
var expansionEnumerator = await expansionManager.EnumerateExpansionsAsync(
_languageGuidForSnippets,
0, // shortCutOnly
Array.Empty<string>(), // types
0, // countTypes
1, // includeNULLTypes
1 // includeDulicates: Allows snippets with the same title but different shortcuts
).ConfigureAwait(false);
// The rest of the process requires being on the UI thread, see the explanation on
// PopulateSnippetCacheFromExpansionEnumeration for details
await Task.Factory.StartNew(() => PopulateSnippetCacheFromExpansionEnumeration(expansionEnumerator),
CancellationToken.None,
TaskCreationOptions.None,
ForegroundTaskScheduler).ConfigureAwait(false);
}