[Draft] don't patch console during first render (#22308)

Previously, DevTools always overrode the native console to dim or supress StrictMode double logging. It also overrode console.log (in addition to console.error and console.warn). However, this changes the location shown by the browser console, which causes a bad developer experience. There is currently a TC39 proposal that would allow us to extend console without breaking developer experience, but in the meantime this PR changes the StrictMode console override behavior so that we only patch the console during the StrictMode double render so that, during the first render, the location points to developer code rather than our DevTools console code.

packages/react-devtools-shared/src/backend/legacy/renderer.js

@@ -1073,6 +1073,10 @@ export function attach(
     // Not implemented
   }
 
+  function patchConsoleForStrictMode() {}
+
+  function unpatchConsoleForStrictMode() {}
+
   return {
     clearErrorsAndWarnings,
     clearErrorsForFiberID,
@@ -1101,6 +1105,7 @@ export function attach(
     overrideSuspense,
     overrideValueAtPath,
     renamePath,
+    patchConsoleForStrictMode,
     prepareViewAttributeSource,
     prepareViewElementSource,
     renderer,
@@ -1109,6 +1114,7 @@ export function attach(
     startProfiling,
     stopProfiling,
     storeAsGlobal,
+    unpatchConsoleForStrictMode,
     updateComponentFilters,
   };
 }

packages/react-devtools-shared/src/backend/renderer.js

@@ -59,6 +59,8 @@ import {inspectHooksOfFiber} from 'react-debug-tools';
 import {
   patch as patchConsole,
   registerRenderer as registerRendererWithConsole,
+  patchForStrictMode as patchConsoleForStrictMode,
+  unpatchForStrictMode as unpatchConsoleForStrictMode,
 } from './console';
 import {
   CONCURRENT_MODE_NUMBER,
@@ -4249,6 +4251,7 @@ export function attach(
     handlePostCommitFiberRoot,
     inspectElement,
     logElementToConsole,
+    patchConsoleForStrictMode,
     prepareViewAttributeSource,
     prepareViewElementSource,
     overrideError,
@@ -4261,6 +4264,7 @@ export function attach(
     startProfiling,
     stopProfiling,
     storeAsGlobal,
+    unpatchConsoleForStrictMode,
     updateComponentFilters,
   };
 }

packages/react-devtools-shared/src/backend/types.js

@@ -136,8 +136,6 @@ export type ReactRenderer = {
   // Only injected by React v16.9+ in DEV mode.
   // Enables DevTools to append owners-only component stack to error messages.
   getCurrentFiber?: () => Fiber | null,
-
-  getIsStrictMode?: () => boolean,
   // 17.0.2+
   reconcilerVersion?: string,
   // Uniquely identifies React DOM v15.
@@ -352,6 +350,7 @@ export type RendererInterface = {
     path: Array<string | number>,
     value: any,
   ) => void,
+  patchConsoleForStrictMode: () => void,
   prepareViewAttributeSource: (
     id: number,
     path: Array<string | number>,
@@ -374,6 +373,7 @@ export type RendererInterface = {
     path: Array<string | number>,
     count: number,
   ) => void,
+  unpatchConsoleForStrictMode: () => void,
   updateComponentFilters: (componentFilters: Array<ComponentFilter>) => void,
   ...
 };
@@ -408,5 +408,8 @@ export type DevToolsHook = {
     // Added in v16.9 to support Fast Refresh
     didError?: boolean,
   ) => void,
+
+  // Testing
+  dangerous_setTargetConsoleForTesting?: (fakeConsole: Object) => void,
   ...
 };