also report late commands as deprecated API but let it slip through for now

microsoft#184924

Author: jrieken

src/vs/workbench/api/common/extHostLanguageFeatures.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { URI, UriComponents } from 'vs/base/common/uri';
-import { mixin } from 'vs/base/common/objects';
+import { equals, mixin } from 'vs/base/common/objects';
 import type * as vscode from 'vscode';
 import * as typeConvert from 'vs/workbench/api/common/extHostTypeConverters';
 import { Range, Disposable, CompletionList, SnippetString, CodeActionKind, SymbolInformation, DocumentSymbol, SemanticTokensEdits, SemanticTokens, SemanticTokensEdit, Location, InlineCompletionTriggerKind, InternalDataTransferItem, CodeActionTriggerKind } from 'vs/workbench/api/common/extHostTypes';
@@ -1033,25 +1033,39 @@ class CompletionsAdapter {
 			return undefined;
 		}
 
+		const dto1 = this._convertCompletionItem(item, id);
+
 		const resolvedItem = await this._provider.resolveCompletionItem!(item, token);
 
 		if (!resolvedItem) {
 			return undefined;
 		}
 
-		const enforcedResolvedItem = {
-			...item,
-			documentation: resolvedItem.documentation,
-			detail: resolvedItem.detail,
-			additionalTextEdits: resolvedItem.additionalTextEdits
-		};
-
 		if (CompletionsAdapter._insertTextIdent(item.insertText) !== CompletionsAdapter._insertTextIdent(resolvedItem.insertText)) {
 			this._apiDeprecation.report('CompletionItem.insertText', this._extension, 'extension MAY NOT change \'insertText\' of a CompletionItem during resolve');
-			enforcedResolvedItem.insertText = resolvedItem.insertText;
 		}
 
-		return this._convertCompletionItem(enforcedResolvedItem, id);
+		if (!equals(item.command, resolvedItem.command)) {
+			this._apiDeprecation.report('CompletionItem.command', this._extension, 'extension MAY NOT change \'command\' of a CompletionItem during resolve');
+		}
+
+		const dto2 = this._convertCompletionItem(resolvedItem, id);
+
+		return {
+			...dto1,
+			[extHostProtocol.ISuggestDataDtoField.documentation]: dto2[extHostProtocol.ISuggestDataDtoField.documentation],
+			[extHostProtocol.ISuggestDataDtoField.detail]: dto2[extHostProtocol.ISuggestDataDtoField.detail],
+			[extHostProtocol.ISuggestDataDtoField.additionalTextEdits]: dto2[extHostProtocol.ISuggestDataDtoField.additionalTextEdits],
+
+			// (fishy) async insertText
+			[extHostProtocol.ISuggestDataDtoField.insertText]: dto2[extHostProtocol.ISuggestDataDtoField.insertText],
+			[extHostProtocol.ISuggestDataDtoField.insertTextRules]: dto2[extHostProtocol.ISuggestDataDtoField.insertTextRules],
+
+			// (fishy) async command
+			[extHostProtocol.ISuggestDataDtoField.commandIdent]: dto2[extHostProtocol.ISuggestDataDtoField.commandIdent],
+			[extHostProtocol.ISuggestDataDtoField.commandId]: dto2[extHostProtocol.ISuggestDataDtoField.commandId],
+			[extHostProtocol.ISuggestDataDtoField.commandArguments]: dto2[extHostProtocol.ISuggestDataDtoField.commandArguments],
+		};
 	}
 
 	private static _insertTextIdent(insertText: string | vscode.SnippetString | undefined) {