[DevTools] front-end for profiling event stack (#24805)

blakef · web-flow · commit 2e1c8841e979 · 2022-06-28T22:15:24.000+01:00
* [DevTools] front-end for profiling event stack Adds a side-bar to the profiling tab. Users can now select an update event, and are shown the callstack from the originating component. When a source path is available there is now UI to jump to source. Add FB enabled feature flag: enableProfilerComponentTree for the side-bar. resolves #24170
diff --git a/packages/react-devtools-extensions/src/main.js b/packages/react-devtools-extensions/src/main.js
@@ -245,6 +245,10 @@ function createPanelIfReactLoaded() {
           }
         };
 
+        const viewSourceLineFunction = (url, line) => {
+          chrome.devtools.panels.openResource(url, line);
+        };
+
         let debugIDCounter = 0;
 
         // For some reason in Firefox, chrome.runtime.sendMessage() from a content script
@@ -381,6 +385,7 @@ function createPanelIfReactLoaded() {
               warnIfUnsupportedVersionDetected: true,
               viewAttributeSourceFunction,
               viewElementSourceFunction,
+              viewSourceLineFunction,
             }),
           );
         };
diff --git a/packages/react-devtools-shared/src/__tests__/utils-test.js b/packages/react-devtools-shared/src/__tests__/utils-test.js
@@ -11,6 +11,7 @@ import {
   getDisplayName,
   getDisplayNameForReactElement,
 } from 'react-devtools-shared/src/utils';
+import {stackToComponentSources} from 'react-devtools-shared/src/devtools/utils';
 import {
   format,
   formatWithStyles,
@@ -53,6 +54,23 @@ describe('utils', () => {
       const FauxComponent = {name: {}};
       expect(getDisplayName(FauxComponent, 'Fallback')).toEqual('Fallback');
     });
+
+    it('should parse a component stack trace', () => {
+      expect(
+        stackToComponentSources(`
+    at Foobar (http://localhost:3000/static/js/bundle.js:103:74)
+    at a
+    at header
+    at div
+    at App`),
+      ).toEqual([
+        ['Foobar', ['http://localhost:3000/static/js/bundle.js', 103, 74]],
+        ['a', null],
+        ['header', null],
+        ['div', null],
+        ['App', null],
+      ]);
+    });
   });
 
   describe('getDisplayNameForReactElement', () => {
diff --git a/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-fb.js b/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-fb.js
@@ -19,6 +19,7 @@ export const enableNamedHooksFeature = true;
 export const enableProfilerChangedHookIndices = true;
 export const enableStyleXFeatures = true;
 export const isInternalFacebookBuild = true;
+export const enableProfilerComponentTree = true;
 
 /************************************************************************
  * Do not edit the code below.
diff --git a/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-oss.js b/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-oss.js
@@ -19,6 +19,7 @@ export const enableNamedHooksFeature = true;
 export const enableProfilerChangedHookIndices = true;
 export const enableStyleXFeatures = false;
 export const isInternalFacebookBuild = false;
+export const enableProfilerComponentTree = false;
 
 /************************************************************************
  * Do not edit the code below.
diff --git a/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.default.js b/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.default.js
@@ -19,3 +19,4 @@ export const enableNamedHooksFeature = true;
 export const enableProfilerChangedHookIndices = true;
 export const enableStyleXFeatures = false;
 export const isInternalFacebookBuild = false;
+export const enableProfilerComponentTree = false;
diff --git a/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-fb.js b/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-fb.js
@@ -19,6 +19,7 @@ export const enableNamedHooksFeature = true;
 export const enableProfilerChangedHookIndices = true;
 export const enableStyleXFeatures = true;
 export const isInternalFacebookBuild = true;
+export const enableProfilerComponentTree = true;
 
 /************************************************************************
  * Do not edit the code below.
diff --git a/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-oss.js b/packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-oss.js
@@ -19,6 +19,7 @@ export const enableNamedHooksFeature = true;
 export const enableProfilerChangedHookIndices = true;
 export const enableStyleXFeatures = false;
 export const isInternalFacebookBuild = false;
+export const enableProfilerComponentTree = false;
 
 /************************************************************************
  * Do not edit the code below.
diff --git a/packages/react-devtools-shared/src/devtools/utils.js b/packages/react-devtools-shared/src/devtools/utils.js
@@ -185,3 +185,28 @@ export function smartStringify(value: any) {
 
   return JSON.stringify(value);
 }
+
+// [url, row, column]
+export type Stack = [string, number, number];
+
+const STACK_DELIMETER = /\n\s+at /;
+const STACK_SOURCE_LOCATION = /([^\s]+) \((.+):(.+):(.+)\)/;
+
+export function stackToComponentSources(
+  stack: string,
+): Array<[string, ?Stack]> {
+  const out = [];
+  stack
+    .split(STACK_DELIMETER)
+    .slice(1)
+    .forEach(entry => {
+      const match = STACK_SOURCE_LOCATION.exec(entry);
+      if (match) {
+        const [, component, url, row, column] = match;
+        out.push([component, [url, parseInt(row, 10), parseInt(column, 10)]]);
+      } else {
+        out.push([entry, null]);
+      }
+    });
+  return out;
+}
diff --git a/packages/react-devtools-shared/src/devtools/views/Components/ViewSourceContext.js b/packages/react-devtools-shared/src/devtools/views/Components/ViewSourceContext.js
@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ */
+
+import {createContext} from 'react';
+
+import type {ViewSourceLine} from 'react-devtools-shared/src/devtools/views/DevTools';
+
+export type Context = {|
+  viewSourceLineFunction: ViewSourceLine | null,
+|};
+
+const ViewSourceContext = createContext<Context>(((null: any): Context));
+ViewSourceContext.displayName = 'ViewSourceContext';
+
+export default ViewSourceContext;
diff --git a/packages/react-devtools-shared/src/devtools/views/DevTools.js b/packages/react-devtools-shared/src/devtools/views/DevTools.js
@@ -27,6 +27,7 @@ import TabBar from './TabBar';
 import {SettingsContextController} from './Settings/SettingsContext';
 import {TreeContextController} from './Components/TreeContext';
 import ViewElementSourceContext from './Components/ViewElementSourceContext';
+import ViewSourceContext from './Components/ViewSourceContext';
 import FetchFileWithCachingContext from './Components/FetchFileWithCachingContext';
 import HookNamesModuleLoaderContext from 'react-devtools-shared/src/devtools/views/Components/HookNamesModuleLoaderContext';
 import {ProfilerContextController} from './Profiler/ProfilerContext';
@@ -57,6 +58,7 @@ export type ViewElementSource = (
   id: number,
   inspectedElement: InspectedElement,
 ) => void;
+export type ViewSourceLine = (url: string, row: number, column: number) => void;
 export type ViewAttributeSource = (
   id: number,
   path: Array<string | number>,
@@ -77,6 +79,7 @@ export type Props = {|
   warnIfUnsupportedVersionDetected?: boolean,
   viewAttributeSourceFunction?: ?ViewAttributeSource,
   viewElementSourceFunction?: ?ViewElementSource,
+  viewSourceLineFunction?: ?ViewSourceLine,
   readOnly?: boolean,
   hideSettings?: boolean,
   hideToggleErrorAction?: boolean,
@@ -136,6 +139,7 @@ export default function DevTools({
   warnIfUnsupportedVersionDetected = false,
   viewAttributeSourceFunction,
   viewElementSourceFunction,
+  viewSourceLineFunction,
   readOnly,
   hideSettings,
   hideToggleErrorAction,
@@ -199,6 +203,15 @@ export default function DevTools({
     [canViewElementSourceFunction, viewElementSourceFunction],
   );
 
+  const viewSource = useMemo(
+    () => ({
+      viewSourceLineFunction: viewSourceLineFunction || null,
+      // todo(blakef): Add inspect(...) method here and remove viewElementSource
+      // to consolidate source code inspection.
+    }),
+    [viewSourceLineFunction],
+  );
+
   const contextMenu = useMemo(
     () => ({
       isEnabledForInspectedElement: enabledInspectedElementContextMenu,
@@ -267,55 +280,59 @@ export default function DevTools({
                 componentsPortalContainer={componentsPortalContainer}
                 profilerPortalContainer={profilerPortalContainer}>
                 <ViewElementSourceContext.Provider value={viewElementSource}>
-                  <HookNamesModuleLoaderContext.Provider
-                    value={hookNamesModuleLoaderFunction || null}>
-                    <FetchFileWithCachingContext.Provider
-                      value={fetchFileWithCaching || null}>
-                      <TreeContextController>
-                        <ProfilerContextController>
-                          <TimelineContextController>
-                            <ThemeProvider>
-                              <div
-                                className={styles.DevTools}
-                                ref={devToolsRef}
-                                data-react-devtools-portal-root={true}>
-                                {showTabBar && (
-                                  <div className={styles.TabBar}>
-                                    <ReactLogo />
-                                    <span className={styles.DevToolsVersion}>
-                                      {process.env.DEVTOOLS_VERSION}
-                                    </span>
-                                    <div className={styles.Spacer} />
-                                    <TabBar
-                                      currentTab={tab}
-                                      id="DevTools"
-                                      selectTab={selectTab}
-                                      tabs={tabs}
-                                      type="navigation"
+                  <ViewSourceContext.Provider value={viewSource}>
+                    <HookNamesModuleLoaderContext.Provider
+                      value={hookNamesModuleLoaderFunction || null}>
+                      <FetchFileWithCachingContext.Provider
+                        value={fetchFileWithCaching || null}>
+                        <TreeContextController>
+                          <ProfilerContextController>
+                            <TimelineContextController>
+                              <ThemeProvider>
+                                <div
+                                  className={styles.DevTools}
+                                  ref={devToolsRef}
+                                  data-react-devtools-portal-root={true}>
+                                  {showTabBar && (
+                                    <div className={styles.TabBar}>
+                                      <ReactLogo />
+                                      <span className={styles.DevToolsVersion}>
+                                        {process.env.DEVTOOLS_VERSION}
+                                      </span>
+                                      <div className={styles.Spacer} />
+                                      <TabBar
+                                        currentTab={tab}
+                                        id="DevTools"
+                                        selectTab={selectTab}
+                                        tabs={tabs}
+                                        type="navigation"
+                                      />
+                                    </div>
+                                  )}
+                                  <div
+                                    className={styles.TabContent}
+                                    hidden={tab !== 'components'}>
+                                    <Components
+                                      portalContainer={
+                                        componentsPortalContainer
+                                      }
+                                    />
+                                  </div>
+                                  <div
+                                    className={styles.TabContent}
+                                    hidden={tab !== 'profiler'}>
+                                    <Profiler
+                                      portalContainer={profilerPortalContainer}
                                     />
                                   </div>
-                                )}
-                                <div
-                                  className={styles.TabContent}
-                                  hidden={tab !== 'components'}>
-                                  <Components
-                                    portalContainer={componentsPortalContainer}
-                                  />
-                                </div>
-                                <div
-                                  className={styles.TabContent}
-                                  hidden={tab !== 'profiler'}>
-                                  <Profiler
-                                    portalContainer={profilerPortalContainer}
-                                  />
                                 </div>
-                              </div>
-                            </ThemeProvider>
-                          </TimelineContextController>
-                        </ProfilerContextController>
-                      </TreeContextController>
-                    </FetchFileWithCachingContext.Provider>
-                  </HookNamesModuleLoaderContext.Provider>
+                              </ThemeProvider>
+                            </TimelineContextController>
+                          </ProfilerContextController>
+                        </TreeContextController>
+                      </FetchFileWithCachingContext.Provider>
+                    </HookNamesModuleLoaderContext.Provider>
+                  </ViewSourceContext.Provider>
                 </ViewElementSourceContext.Provider>
               </SettingsContextController>
               <UnsupportedBridgeProtocolDialog />
diff --git a/packages/react-devtools-shared/src/devtools/views/Profiler/Profiler.js b/packages/react-devtools-shared/src/devtools/views/Profiler/Profiler.js
@@ -17,6 +17,7 @@ import CommitFlamegraph from './CommitFlamegraph';
 import CommitRanked from './CommitRanked';
 import RootSelector from './RootSelector';
 import {Timeline} from 'react-devtools-timeline/src/Timeline';
+import SidebarEventInfo from './SidebarEventInfo';
 import RecordToggle from './RecordToggle';
 import ReloadAndProfileButton from './ReloadAndProfileButton';
 import ProfilingImportExportButtons from './ProfilingImportExportButtons';
@@ -33,6 +34,7 @@ import {SettingsModalContextController} from 'react-devtools-shared/src/devtools
 import portaledContent from '../portaledContent';
 import {StoreContext} from '../context';
 import {TimelineContext} from 'react-devtools-timeline/src/TimelineContext';
+import {enableProfilerComponentTree} from 'react-devtools-feature-flags';
 
 import styles from './Profiler.css';
 
@@ -55,6 +57,8 @@ function Profiler(_: {||}) {
   const {supportsTimeline} = useContext(StoreContext);
 
   const isLegacyProfilerSelected = selectedTabID !== 'timeline';
+  const isRightColumnVisible =
+    isLegacyProfilerSelected || enableProfilerComponentTree;
 
   let view = null;
   if (didRecordCommits || selectedTabID === 'timeline') {
@@ -102,6 +106,9 @@ function Profiler(_: {||}) {
           }
         }
         break;
+      case 'timeline':
+        sidebar = <SidebarEventInfo />;
+        break;
       default:
         break;
     }
@@ -145,7 +152,7 @@ function Profiler(_: {||}) {
             <ModalDialog />
           </div>
         </div>
-        {isLegacyProfilerSelected && (
+        {isRightColumnVisible && (
           <div className={styles.RightColumn}>{sidebar}</div>
         )}
         <SettingsModal />
diff --git a/packages/react-devtools-shared/src/devtools/views/Profiler/SidebarEventInfo.css b/packages/react-devtools-shared/src/devtools/views/Profiler/SidebarEventInfo.css
diff --git a/packages/react-devtools-shared/src/devtools/views/Profiler/SidebarEventInfo.js b/packages/react-devtools-shared/src/devtools/views/Profiler/SidebarEventInfo.js
diff --git a/packages/react-devtools-timeline/src/CanvasPage.js b/packages/react-devtools-timeline/src/CanvasPage.js
diff --git a/packages/react-devtools-timeline/src/content-views/SchedulingEventsView.js b/packages/react-devtools-timeline/src/content-views/SchedulingEventsView.js
diff --git a/packages/react-devtools-timeline/src/utils/flow.js b/packages/react-devtools-timeline/src/utils/flow.js
