Use different comletion trigger character set for VSCode #11446
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| [Export(typeof(CompletionTriggerAndCommitCharacters))] | ||
| [method: ImportingConstructor] | ||
| class CohostCompletionTriggerAndCommitCharacters(LanguageServerFeatureOptions languageServerFeatureOptions) : CompletionTriggerAndCommitCharacters(languageServerFeatureOptions); |
| /// <summary> | ||
| /// Indicates that VSCode-compatible completion trigger character set should be used | ||
| /// </summary> | ||
| public abstract bool VsCodeCompletionTriggerCharacters { get; } |
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Nit: Consider adding "Use" to the front of this, to match the existing flags (and make it more verb-y)
…to delegating HTML client if trigger character is not HTML. Doing so causes issues in VS Code client because it will just return bad matches in that case, so we shouldn't even ask. I don't see any side-effects from not sending it to VS client either, seems logical not to send non-HTML trigger character request to HTML language server.
| public required bool SupportsSoftSelectionInCompletion { get; set; } | ||
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| [JsonPropertyName("vsCodeCompletionTriggerCharacters")] |
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Since you have to make at least one more commit for the failing test anyway, I'm going to be annoying: Nit, should be "useVSCodeCompletionTriggerCharacters" 😛
| @@ -103,7 +103,7 @@ await _provider.GetCompletionListAsync( | |||
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| [Fact] | |||
| public async Task HtmlDelegation_UnsupportedTriggerCharacter_TranslatesToInvoked() | |||
| public async Task HtmlDelegation_UnsupportedTriggerCharacter_ReturnsNull() | |||
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It's interesting we had a test for this specific behavior... I don't know if this change would break anything, though I can't see how sending explicit completion invokes to HTML LSP for something that's not an HTML trigger character is a good thing. VS HTML at least behaves decently by returning nothing in inappropriate situation, but VS Code HTML is very aggressive with low quality matches ("better return anything than nothing"?) and that makes typing very annoying. In VS, it seems like a wasted message sent to HTML LSP.
| TriggerCharacter = "f", | ||
| TriggerKind = RoslynCompletionTriggerKind.TriggerCharacter | ||
| TriggerCharacter = null, | ||
| TriggerKind = RoslynCompletionTriggerKind.Invoked | ||
| }, |
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Here we (probably me) were specifying bad input data. I debugged and confirmed VS actually sends the newly specified data in this change
Summary of the changes
VS Code HTML language service is a lot more aggressive with showing low quality matches than VS HTML language service. We cannot use the same completion trigger characters in VS Code as in VS because it causes unwanted completion list with bad completion non-matches to pop up while user types in plain text.
Fixes:
dotnet/vscode-csharp#7678
dotnet/vscode-csharp#7871