Implement get_document_symbols

src/ide_services/endpoints/getDocumentSymbols.ts

@@ -0,0 +1,59 @@
+import * as vscode from "vscode";
+
+import { IDEService } from "../types";
+
+/**
+ * Get document symbols of a file
+ *
+ * @param abspath: absolute path of the file
+ * @returns an array of IDEService.SymbolNode
+ */
+export async function getDocumentSymbols(abspath: string) {
+    const documentSymbols = await vscode.commands.executeCommand<
+        vscode.DocumentSymbol[] | vscode.SymbolInformation[]
+    >("vscode.executeDocumentSymbolProvider", vscode.Uri.file(abspath));
+
+    const symbols: IDEService.SymbolNode[] = [];
+
+    documentSymbols.forEach((symbol) => {
+        const symbolNode = toSymbolNode(symbol);
+        symbols.push(symbolNode);
+    });
+
+    return symbols;
+}
+
+/**
+ * Convert vscode.DocumentSymbol or vscode.SymbolInformation to IDEService.SymbolNode recursively
+ */
+function toSymbolNode(
+    symbol: vscode.DocumentSymbol | vscode.SymbolInformation
+): IDEService.SymbolNode {
+    const range = "range" in symbol ? symbol.range : symbol.location?.range;
+    const start = range.start;
+    const end = range.end;
+
+    const symbolNode: IDEService.SymbolNode = {
+        name: symbol.name,
+        kind: vscode.SymbolKind[symbol.kind],
+        range: {
+            start: {
+                line: start.line,
+                character: start.character,
+            },
+            end: {
+                line: end.line,
+                character: end.character,
+            },
+        },
+        children: [],
+    };
+
+    if ("children" in symbol) {
+        symbol.children.forEach((child) => {
+            symbolNode.children.push(toSymbolNode(child));
+        });
+    }
+
+    return symbolNode;
+}

src/ide_services/services.ts

@@ -10,6 +10,7 @@ import { updateSlashCommands } from "./endpoints/updateSlashCommands";
 import { ideLanguage } from "./endpoints/ideLanguage";
 import { LegacyEndpoints } from "./endpoints/legacy";
 import { UnofficialEndpoints } from "./endpoints/unofficial";
+import { getDocumentSymbols } from "./endpoints/getDocumentSymbols";
 
 const functionRegistry: any = {
     /**
@@ -43,6 +44,10 @@ const functionRegistry: any = {
         keys: ["message"],
         handler: logError,
     },
+    "/get_document_symbols": {
+        keys: ["abspath"],
+        handler: getDocumentSymbols,
+    },
 
     /**
      * @deprecated