fix(stacktrace): Always use ? for anonymous function name

packages/browser/src/integrations/globalhandlers.ts

@@ -1,6 +1,7 @@
 import { captureEvent, defineIntegration, getClient } from '@sentry/core';
 import type { Client, Event, IntegrationFn, Primitive, StackParser } from '@sentry/types';
 import {
+  UNKNOWN_FUNCTION,
   addGlobalErrorInstrumentationHandler,
   addGlobalUnhandledRejectionInstrumentationHandler,
   getLocationHref,
@@ -172,7 +173,7 @@ function _enhanceEventWithInitialFrame(event: Event, url: any, line: any, column
     ev0sf.push({
       colno,
       filename,
-      function: '?',
+      function: UNKNOWN_FUNCTION,
       in_app: true,
       lineno,
     });

packages/browser/src/stack-parsers.ts

@@ -24,10 +24,7 @@
 // OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 import type { StackFrame, StackLineParser, StackLineParserFn } from '@sentry/types';
-import { createStackParser } from '@sentry/utils';
-
-// global reference to slice
-const UNKNOWN_FUNCTION = '?';
+import { UNKNOWN_FUNCTION, createStackParser } from '@sentry/utils';
 
 const OPERA10_PRIORITY = 10;
 const OPERA11_PRIORITY = 20;
@@ -38,7 +35,7 @@ const GECKO_PRIORITY = 50;
 function createFrame(filename: string, func: string, lineno?: number, colno?: number): StackFrame {
   const frame: StackFrame = {
     filename,
-    function: func,
+    function: func === '<anonymous>' ? UNKNOWN_FUNCTION : func,
     in_app: true, // All browser frames are considered in_app
   };
 

packages/browser/test/unit/tracekit/misc.test.ts

@@ -92,7 +92,7 @@ describe('Tracekit - Misc Tests', () => {
           { filename: '<anonymous>', function: 'Array.forEach', in_app: true },
           {
             filename: '../node_modules/@sentry-internal/rrweb/es/rrweb/ext/@xstate/fsm/es/index.js',
-            function: '<anonymous>',
+            function: '?',
             in_app: true,
             lineno: 15,
             colno: 2595,

packages/deno/test/__snapshots__/mod.test.ts.snap

@@ -45,7 +45,7 @@ snapshot[`captureException 1`] = `
               colno: 27,
               context_line: "  client.captureException(something());",
               filename: "app:///test/mod.test.ts",
-              function: "<anonymous>",
+              function: "?",
               in_app: true,
               lineno: 47,
               post_context: [

packages/node/test/stacktrace.test.ts

@@ -193,7 +193,7 @@ describe('Stack parsing', () => {
       {
         filename: '/Users/felix/code/node-fast-or-slow/lib/test_case.js',
         module: 'test_case',
-        function: '<anonymous>',
+        function: '?',
         lineno: 80,
         colno: 10,
         in_app: true,
@@ -213,7 +213,7 @@ describe('Stack parsing', () => {
       {
         filename: '/Users/felix/code/node-fast-or-slow/lib/test_case.js',
         module: 'test_case',
-        function: '<anonymous>',
+        function: '?',
         lineno: 80,
         colno: 10,
         in_app: true,
@@ -290,7 +290,7 @@ describe('Stack parsing', () => {
       {
         filename: '/code/node_modules/kafkajs/src/consumer/runner.js',
         module: 'kafkajs.src.consumer:runner',
-        function: '<anonymous>',
+        function: '?',
         lineno: 376,
         colno: 15,
         in_app: false,

packages/utils/src/anr.ts

@@ -1,7 +1,7 @@
 import type { StackFrame } from '@sentry/types';
-
+import { filenameIsInApp } from './node-stack-trace';
 import { dropUndefinedKeys } from './object';
-import { filenameIsInApp } from './stacktrace';
+import { UNKNOWN_FUNCTION } from './stacktrace';
 
 type WatchdogReturn = {
   /** Resets the watchdog timer */
@@ -84,7 +84,7 @@ export function callFrameToStackFrame(
   return dropUndefinedKeys({
     filename,
     module: getModuleFromFilename(filename),
-    function: frame.functionName || '?',
+    function: frame.functionName || UNKNOWN_FUNCTION,
     colno,
     lineno,
     in_app: filename ? filenameIsInApp(filename) : undefined,

packages/utils/src/index.ts

@@ -18,6 +18,7 @@ export * from './promisebuffer';
 export * from './requestdata';
 export * from './severity';
 export * from './stacktrace';
+export * from './node-stack-trace';
 export * from './string';
 export * from './supports';
 export * from './syncpromise';

packages/utils/src/node-stack-trace.ts

@@ -21,7 +21,8 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 //  THE SOFTWARE.
 
-import type { StackLineParserFn } from '@sentry/types';
+import type { StackLineParser, StackLineParserFn } from '@sentry/types';
+import { UNKNOWN_FUNCTION } from './stacktrace';
 
 export type GetModuleFn = (filename: string | undefined) => string | undefined;
 
@@ -96,7 +97,7 @@ export function node(getModule?: GetModuleFn): StackLineParserFn {
       }
 
       if (functionName === undefined) {
-        methodName = methodName || '<anonymous>';
+        methodName = methodName || UNKNOWN_FUNCTION;
         functionName = typeName ? `${typeName}.${methodName}` : methodName;
       }
 
@@ -131,3 +132,13 @@ export function node(getModule?: GetModuleFn): StackLineParserFn {
     return undefined;
   };
 }
+
+/**
+ * Node.js stack line parser
+ *
+ * This is in @sentry/utils so it can be used from the Electron SDK in the browser for when `nodeIntegration == true`.
+ * This allows it to be used without referencing or importing any node specific code which causes bundlers to complain
+ */
+export function nodeStackLineParser(getModule?: GetModuleFn): StackLineParser {
+  return [90, node(getModule)];
+}

packages/utils/src/stacktrace.ts

@@ -1,11 +1,7 @@
 import type { StackFrame, StackLineParser, StackParser } from '@sentry/types';
 
-import type { GetModuleFn } from './node-stack-trace';
-import { filenameIsInApp, node } from './node-stack-trace';
-
-export { filenameIsInApp };
-
 const STACKTRACE_FRAME_LIMIT = 50;
+export const UNKNOWN_FUNCTION = '?';
 // Used to sanitize webpack (error: *) wrapped stack errors
 const WEBPACK_ERROR_REGEXP = /\(error: (.*)\)/;
 const STRIP_FRAME_REGEXP = /captureMessage|captureException/;
@@ -116,7 +112,7 @@ export function stripSentryFramesAndReverse(stack: ReadonlyArray<StackFrame>): S
   return localStack.slice(0, STACKTRACE_FRAME_LIMIT).map(frame => ({
     ...frame,
     filename: frame.filename || localStack[localStack.length - 1].filename,
-    function: frame.function || '?',
+    function: frame.function || UNKNOWN_FUNCTION,
   }));
 }
 
@@ -137,13 +133,3 @@ export function getFunctionName(fn: unknown): string {
     return defaultFunctionName;
   }
 }
-
-/**
- * Node.js stack line parser
- *
- * This is in @sentry/utils so it can be used from the Electron SDK in the browser for when `nodeIntegration == true`.
- * This allows it to be used without referencing or importing any node specific code which causes bundlers to complain
- */
-export function nodeStackLineParser(getModule?: GetModuleFn): StackLineParser {
-  return [90, node(getModule)];
-}

packages/utils/test/stacktrace.test.ts

@@ -1,4 +1,4 @@
-import { nodeStackLineParser, stripSentryFramesAndReverse } from '../src/stacktrace';
+import { nodeStackLineParser, stripSentryFramesAndReverse } from '../src';
 
 describe('Stacktrace', () => {
   describe('stripSentryFramesAndReverse()', () => {
@@ -157,7 +157,7 @@ describe('node', () => {
     const expectedOutput = {
       filename: '/path/to/file.js',
       module: undefined,
-      function: '<anonymous>',
+      function: '?',
       lineno: 10,
       colno: 5,
       in_app: true,
@@ -257,7 +257,7 @@ describe('node', () => {
 
     expect(result).toEqual({
       filename: '/path/to/myFile.js',
-      function: 'Object.<anonymous>',
+      function: 'Object.?',
       lineno: 10,
       colno: 20,
       in_app: true,
@@ -269,7 +269,7 @@ describe('node', () => {
     const result = node(line);
     expect(result).toEqual({
       filename: '/path/to/myFile.js',
-      function: '<anonymous>',
+      function: '?',
       lineno: 10,
       colno: 20,
       in_app: true,
@@ -281,7 +281,7 @@ describe('node', () => {
     const result = node(line);
     expect(result).toEqual({
       filename: undefined,
-      function: 'Object.<anonymous>',
+      function: 'Object.?',
       lineno: undefined,
       colno: undefined,
       in_app: false,
@@ -294,7 +294,7 @@ describe('node', () => {
 
     expect(result).toEqual({
       filename: '/path/to/node_modules/myModule/index.js',
-      function: 'Object.<anonymous>',
+      function: 'Object.?',
       lineno: 10,
       colno: 20,
       in_app: false,
@@ -306,7 +306,7 @@ describe('node', () => {
     const result = node(line);
     expect(result).toEqual({
       filename: 'C:\\path\\to\\myFile.js',
-      function: 'Object.<anonymous>',
+      function: 'Object.?',
       lineno: 10,
       colno: 20,
       in_app: true,