Extract a common DocumentSymbolAdapter

src/common/lspLanguageFeatures.ts

@@ -646,3 +646,85 @@ function toWorkspaceEdit(edit: lsTypes.WorkspaceEdit): languages.WorkspaceEdit {
 }
 
 //#endregion
+
+//#region DocumentSymbolAdapter
+
+export interface ILanguageWorkerWithDocumentSymbols {
+	findDocumentSymbols(uri: string): Promise<lsTypes.SymbolInformation[]>;
+}
+
+export class DocumentSymbolAdapter<T extends ILanguageWorkerWithDocumentSymbols>
+	implements languages.DocumentSymbolProvider
+{
+	constructor(private readonly _worker: WorkerAccessor<T>) {}
+
+	public provideDocumentSymbols(
+		model: editor.IReadOnlyModel,
+		token: CancellationToken
+	): Promise<languages.DocumentSymbol[] | undefined> {
+		const resource = model.uri;
+
+		return this._worker(resource)
+			.then((worker) => worker.findDocumentSymbols(resource.toString()))
+			.then((items) => {
+				if (!items) {
+					return;
+				}
+				return items.map((item) => ({
+					name: item.name,
+					detail: '',
+					containerName: item.containerName,
+					kind: toSymbolKind(item.kind),
+					range: toRange(item.location.range),
+					selectionRange: toRange(item.location.range),
+					tags: []
+				}));
+			});
+	}
+}
+
+function toSymbolKind(kind: lsTypes.SymbolKind): languages.SymbolKind {
+	let mKind = languages.SymbolKind;
+
+	switch (kind) {
+		case lsTypes.SymbolKind.File:
+			return mKind.Array;
+		case lsTypes.SymbolKind.Module:
+			return mKind.Module;
+		case lsTypes.SymbolKind.Namespace:
+			return mKind.Namespace;
+		case lsTypes.SymbolKind.Package:
+			return mKind.Package;
+		case lsTypes.SymbolKind.Class:
+			return mKind.Class;
+		case lsTypes.SymbolKind.Method:
+			return mKind.Method;
+		case lsTypes.SymbolKind.Property:
+			return mKind.Property;
+		case lsTypes.SymbolKind.Field:
+			return mKind.Field;
+		case lsTypes.SymbolKind.Constructor:
+			return mKind.Constructor;
+		case lsTypes.SymbolKind.Enum:
+			return mKind.Enum;
+		case lsTypes.SymbolKind.Interface:
+			return mKind.Interface;
+		case lsTypes.SymbolKind.Function:
+			return mKind.Function;
+		case lsTypes.SymbolKind.Variable:
+			return mKind.Variable;
+		case lsTypes.SymbolKind.Constant:
+			return mKind.Constant;
+		case lsTypes.SymbolKind.String:
+			return mKind.String;
+		case lsTypes.SymbolKind.Number:
+			return mKind.Number;
+		case lsTypes.SymbolKind.Boolean:
+			return mKind.Boolean;
+		case lsTypes.SymbolKind.Array:
+			return mKind.Array;
+	}
+	return mKind.Function;
+}
+
+//#endregion