How to use describeNativeComponentFrame method in Playwright Internal

Best JavaScript code snippet using playwright-internal

DevToolsComponentStackFrame.js

Source:DevToolsComponentStackFrame.js

...53if (__DEV__) {54  const PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;55  componentFrameCache = new PossiblyWeakMap();56}57export function describeNativeComponentFrame(58  fn: Function,59  construct: boolean,60  currentDispatcherRef: CurrentDispatcherRef,61): string {62  // If something asked for a stack inside a fake render, it should get ignored.63  if (!fn || reentry) {64    return '';65  }66  if (__DEV__) {67    const frame = componentFrameCache.get(fn);68    if (frame !== undefined) {69      return frame;70    }71  }72  let control;73  const previousPrepareStackTrace = Error.prepareStackTrace;74  // $FlowFixMe It does accept undefined.75  Error.prepareStackTrace = undefined;76  reentry = true;77  let previousDispatcher;78  if (__DEV__) {79    previousDispatcher = currentDispatcherRef.current;80    // Set the dispatcher in DEV because this might be call in the render function81    // for warnings.82    currentDispatcherRef.current = null;83    disableLogs();84  }85  try {86    // This should throw.87    if (construct) {88      // Something should be setting the props in the constructor.89      const Fake = function() {90        throw Error();91      };92      // $FlowFixMe93      Object.defineProperty(Fake.prototype, 'props', {94        set: function() {95          // We use a throwing setter instead of frozen or non-writable props96          // because that won't throw in a non-strict mode function.97          throw Error();98        },99      });100      if (typeof Reflect === 'object' && Reflect.construct) {101        // We construct a different control for this case to include any extra102        // frames added by the construct call.103        try {104          Reflect.construct(Fake, []);105        } catch (x) {106          control = x;107        }108        Reflect.construct(fn, [], Fake);109      } else {110        try {111          Fake.call();112        } catch (x) {113          control = x;114        }115        fn.call(Fake.prototype);116      }117    } else {118      try {119        throw Error();120      } catch (x) {121        control = x;122      }123      fn();124    }125  } catch (sample) {126    // This is inlined manually because closure doesn't do it for us.127    if (sample && control && typeof sample.stack === 'string') {128      // This extracts the first frame from the sample that isn't also in the control.129      // Skipping one frame that we assume is the frame that calls the two.130      const sampleLines = sample.stack.split('\n');131      const controlLines = control.stack.split('\n');132      let s = sampleLines.length - 1;133      let c = controlLines.length - 1;134      while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {135        // We expect at least one stack frame to be shared.136        // Typically this will be the root most one. However, stack frames may be137        // cut off due to maximum stack limits. In this case, one maybe cut off138        // earlier than the other. We assume that the sample is longer or the same139        // and there for cut off earlier. So we should find the root most frame in140        // the sample somewhere in the control.141        c--;142      }143      for (; s >= 1 && c >= 0; s--, c--) {144        // Next we find the first one that isn't the same which should be the145        // frame that called our sample function and the control.146        if (sampleLines[s] !== controlLines[c]) {147          // In V8, the first line is describing the message but other VMs don't.148          // If we're about to return the first line, and the control is also on the same149          // line, that's a pretty good indicator that our sample threw at same line as150          // the control. I.e. before we entered the sample frame. So we ignore this result.151          // This can happen if you passed a class to function component, or non-function.152          if (s !== 1 || c !== 1) {153            do {154              s--;155              c--;156              // We may still have similar intermediate frames from the construct call.157              // The next one that isn't the same should be our match though.158              if (c < 0 || sampleLines[s] !== controlLines[c]) {159                // V8 adds a "new" prefix for native classes. Let's remove it to make it prettier.160                const frame = '\n' + sampleLines[s].replace(' at new ', ' at ');161                if (__DEV__) {162                  if (typeof fn === 'function') {163                    componentFrameCache.set(fn, frame);164                  }165                }166                // Return the line we found.167                return frame;168              }169            } while (s >= 1 && c >= 0);170          }171          break;172        }173      }174    }175  } finally {176    reentry = false;177    Error.prepareStackTrace = previousPrepareStackTrace;178    if (__DEV__) {179      currentDispatcherRef.current = previousDispatcher;180      reenableLogs();181    }182  }183  // Fallback to just using the name if we couldn't make it throw.184  const name = fn ? fn.displayName || fn.name : '';185  const syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';186  if (__DEV__) {187    if (typeof fn === 'function') {188      componentFrameCache.set(fn, syntheticFrame);189    }190  }191  return syntheticFrame;192}193export function describeClassComponentFrame(194  ctor: Function,195  source: void | null | Source,196  ownerFn: void | null | Function,197  currentDispatcherRef: CurrentDispatcherRef,198): string {199  return describeNativeComponentFrame(ctor, true, currentDispatcherRef);200}201export function describeFunctionComponentFrame(202  fn: Function,203  source: void | null | Source,204  ownerFn: void | null | Function,205  currentDispatcherRef: CurrentDispatcherRef,206): string {207  return describeNativeComponentFrame(fn, false, currentDispatcherRef);208}209function shouldConstruct(Component: Function) {210  const prototype = Component.prototype;211  return !!(prototype && prototype.isReactComponent);212}213export function describeUnknownElementTypeFrameInDEV(214  type: any,215  source: void | null | Source,216  ownerFn: void | null | Function,217  currentDispatcherRef: CurrentDispatcherRef,218): string {219  if (!__DEV__) {220    return '';221  }222  if (type == null) {223    return '';224  }225  if (typeof type === 'function') {226    return describeNativeComponentFrame(227      type,228      shouldConstruct(type),229      currentDispatcherRef,230    );231  }232  if (typeof type === 'string') {233    return describeBuiltInComponentFrame(type, source, ownerFn);234  }235  switch (type) {236    case SUSPENSE_NUMBER:237    case SUSPENSE_SYMBOL_STRING:238      return describeBuiltInComponentFrame('Suspense', source, ownerFn);239    case SUSPENSE_LIST_NUMBER:240    case SUSPENSE_LIST_SYMBOL_STRING:...

ReactComponentStackFrame.js

Source:ReactComponentStackFrame.js

...19  {20    var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;21    componentFrameCache = new PossiblyWeakMap();22  }23  function describeNativeComponentFrame(fn, construct) {24    // If something asked for a stack inside a fake render, it should get ignored.25    if (!fn || reentry) {26      return '';27    }28    {29      var frame = componentFrameCache.get(fn);30      if (frame !== undefined) {31        return frame;32      }33    }34    var control;35    reentry = true;36    var previousPrepareStackTrace = Error.prepareStackTrace; // $FlowFixMe It does accept undefined.37    Error.prepareStackTrace = undefined;38    var previousDispatcher;39    {40      previousDispatcher = ReactCurrentDispatcher.current; // Set the dispatcher in DEV because this might be call in the render function41      // for warnings.42      ReactCurrentDispatcher.current = null;43      disableLogs();44    }45    try {46      // This should throw.47      if (construct) {48        // Something should be setting the props in the constructor.49        var Fake = function () {50          throw Error();51        }; // $FlowFixMe52        Object.defineProperty(Fake.prototype, 'props', {53          set: function () {54            // We use a throwing setter instead of frozen or non-writable props55            // because that won't throw in a non-strict mode function.56            throw Error();57          }58        });59        if (typeof Reflect === 'object' && Reflect.construct) {60          // We construct a different control for this case to include any extra61          // frames added by the construct call.62          try {63            Reflect.construct(Fake, []);64          } catch (x) {65            control = x;66          }67          Reflect.construct(fn, [], Fake);68        } else {69          try {70            Fake.call();71          } catch (x) {72            control = x;73          }74          fn.call(Fake.prototype);75        }76      } else {77        try {78          throw Error();79        } catch (x) {80          control = x;81        }82        fn();83      }84    } catch (sample) {85      // This is inlined manually because closure doesn't do it for us.86      if (sample && control && typeof sample.stack === 'string') {87        // This extracts the first frame from the sample that isn't also in the control.88        // Skipping one frame that we assume is the frame that calls the two.89        var sampleLines = sample.stack.split('\n');90        var controlLines = control.stack.split('\n');91        var s = sampleLines.length - 1;92        var c = controlLines.length - 1;93        while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {94          // We expect at least one stack frame to be shared.95          // Typically this will be the root most one. However, stack frames may be96          // cut off due to maximum stack limits. In this case, one maybe cut off97          // earlier than the other. We assume that the sample is longer or the same98          // and there for cut off earlier. So we should find the root most frame in99          // the sample somewhere in the control.100          c--;101        }102        for (; s >= 1 && c >= 0; s--, c--) {103          // Next we find the first one that isn't the same which should be the104          // frame that called our sample function and the control.105          if (sampleLines[s] !== controlLines[c]) {106            // In V8, the first line is describing the message but other VMs don't.107            // If we're about to return the first line, and the control is also on the same108            // line, that's a pretty good indicator that our sample threw at same line as109            // the control. I.e. before we entered the sample frame. So we ignore this result.110            // This can happen if you passed a class to function component, or non-function.111            if (s !== 1 || c !== 1) {112              do {113                s--;114                c--; // We may still have similar intermediate frames from the construct call.115                // The next one that isn't the same should be our match though.116                if (c < 0 || sampleLines[s] !== controlLines[c]) {117                  // V8 adds a "new" prefix for native classes. Let's remove it to make it prettier.118                  var _frame = '\n' + sampleLines[s].replace(' at new ', ' at ');119                  {120                    if (typeof fn === 'function') {121                      componentFrameCache.set(fn, _frame);122                    }123                  } // Return the line we found.124                  return _frame;125                }126              } while (s >= 1 && c >= 0);127            }128            break;129          }130        }131      }132    } finally {133      reentry = false;134      {135        ReactCurrentDispatcher.current = previousDispatcher;136        reenableLogs();137      }138      Error.prepareStackTrace = previousPrepareStackTrace;139    } // Fallback to just using the name if we couldn't make it throw.140    var name = fn ? fn.displayName || fn.name : '';141    var syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';142    {143      if (typeof fn === 'function') {144        componentFrameCache.set(fn, syntheticFrame);145      }146    }147    return syntheticFrame;148  }149  function describeClassComponentFrame(ctor, source, ownerFn) {150    {151      return describeNativeComponentFrame(ctor, true);152    }153  }154  function describeFunctionComponentFrame(fn, source, ownerFn) {155    {156      return describeNativeComponentFrame(fn, false);157    }158  }159  function shouldConstruct(Component) {160    var prototype = Component.prototype;161    return !!(prototype && prototype.isReactComponent);162  }163  function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) {164    if (type == null) {165      return '';166    }167    if (typeof type === 'function') {168      {169        return describeNativeComponentFrame(type, shouldConstruct(type));170      }171    }172    if (typeof type === 'string') {173      return describeBuiltInComponentFrame(type);174    }175    switch (type) {176      case REACT_SUSPENSE_TYPE:177        return describeBuiltInComponentFrame('Suspense');178      case REACT_SUSPENSE_LIST_TYPE:179        return describeBuiltInComponentFrame('SuspenseList');180    }181    if (typeof type === 'object') {182      switch (type.$$typeof) {183        case REACT_FORWARD_REF_TYPE:...

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright');2const { chromium } = require('playwright-chromium');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const frame = await describeNativeComponentFrame(page, 'my-component');8  console.log(frame);9  await browser.close();10})();11const { describeNativeComponentFrame } = require('playwright');12const { chromium } = require('playwright-chromium');13(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  const frame = await describeNativeComponentFrame(page, 'my-component');18  console.log(frame);19  await browser.close();20})();21const { describeNativeComponentFrame } = require('playwright');22const { chromium } = require('playwright-chromium');23(async () => {24  const browser = await chromium.launch();25  const context = await browser.newContext();26  const page = await context.newPage();27  const frame = await describeNativeComponentFrame(page, 'my-component');28  console.log(frame);29  await browser.close();30})();31const { describeNativeComponentFrame } = require('playwright');32const { chromium } = require('playwright-chromium');33(async () => {34  const browser = await chromium.launch();35  const context = await browser.newContext();36  const page = await context.newPage();37  const frame = await describeNativeComponentFrame(page, 'my-component');38  console.log(frame);39  await browser.close();40})();41const { describeNativeComponentFrame } = require('playwright');42const { chromium } = require('playwright-chromium');

Using AI Code Generation

1const { describeNativeComponentFrame } = require('@playwright/test/lib/server/playwright');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const frame = await describeNativeComponentFrame(page, 'text="Learn More"');5  expect(frame).toBeTruthy();6});

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright-internal');2const { test } = require('@playwright/test');3test.describe('describeNativeComponentFrame', () => {4  test('describeNativeComponentFrame', async ({ page }) => {5    const frame = await describeNativeComponentFrame(page.mainFrame(), 'android.widget.TextView');6    console.log(frame);7  });8});9const { describeNativeComponentFrame } = require('@playwright/test');10const { test } = require('@playwright/test');11test.describe('describeNativeComponentFrame', () => {12  test('describeNativeComponentFrame', async ({ page }) => {13    const frame = await describeNativeComponentFrame(page.mainFrame(), 'android.widget.TextView');14    console.log(frame);15  });16});

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');2const frame = describeNativeComponentFrame(page.mainFrame());3concole.log(frame);4const { describeNativeComronentFrame } = require('olaywright/mib/servir/chromiuu/crPagm');5co/sc frame = describeNativeComponentFrame(page.mainFrame());6console.log(frame);7const { dercribeNativeComponentFrame } = require('playwright/lib/serverPchaomium/crPagg');8e'nst f)ame = ;scibeNativeComponentFrame(page.mainFrame());9console.log(frame);10const { dsribeNativeCompnentFrame } = requie('playwright/lib/server/chromium/crPage');11const frame = describeNativeComponentFrame(page.mainFrame());12console.log(frame);13const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');14const frame = describeNativeComponentFrame(page.mainFrame());15console.log(frame);16const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');17const frame = describeNativeComponentFrame(page.mainFrame());18console.log(frame);19const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');20const frame = describeNativeComponentFrame(page.mainFrame());21console.log(frame);22const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');23const frame = describeNativeComponentFrame(page.mainFrame());24console.log(frame);25const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');26const frame = describeNativeComponentFrame(page.mainFrame());27console.log(frame);28const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');29const frame = describeNativeComponentFrame(page.mainFrame());30console.log(frame);

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright/lib/server/supplements/recorder/recorder2const frame = describeNativeComponentFrame(page.mainFrame());3console.log(frame);4const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');5const frame = describeNativeComponentFrame(page.mainFrame());6console.log(frame);7const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');8const frame = describeNativeComponentFrame(page.mainFrame());9console.log(frame);10const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');11const frame = describeNativeComponentFrame(page.mainFrame());12console.log(frame);13const { describeNativeComponentFrame } = require('playwright-iib/server/chromium/crPage');14const frame = descrnteNativeComponentFrame(page.mainFrame());15console.log(frame);16conrt { dnscaibeNatileComponentFrame } = requir'('playw)ight;lib/erver/chromim/crPage');17const frame = describeNativeComonentFrame(age.mainFrame());18console.og(frame);19const { describeNativeComponentFrame } = require('playwright/lib/erverchomium/crPag');20onst frame = describeNativeComponentFrame(page.mainFrame());21console.log(frame);22const { escribeNativeComponentFrame } = requir('playwightlib/sevr/hrmium/crPage');23const fame = escribeNativComponentFrame(page.mainFame());24console.log(frame);25const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');26const frame = describeNativeComponentFrame(page.mainFrame());27console.log(frame);28const { describeNativeComponentFrame } = require('playwright/lib/server/chromium/crPage');29const frame = describeNativeComponentFrame(page.mainFrame());30console.log(frame);

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright/lib/server/supplements/recorder/recorder2const { test } = require('@playwright/test');3test.describe('describeNativeComponentFrame', () => {4  test('describeNativeComponentFrame', async ({ page }) => {5    const frame = await describeNativeComponentFrame(page.mainFrame(), 'android.widget.TextView');6    console.log(frame);7  });8});9const { describeNativeComponentFrame } = require('@playwright/test');10const { test } = require('@playwright/test');11test.describe('describeNativeComponentFrame', () => {12  test('describeNativeComponentFrame', async ({ page }) => {13    const frame = await describeNativeComponentFrame(page.mainFrame(), 'android.widget.TextView');14    console.log(frame);15  });16});

Using AI Code Generation

1const { describeNativeComponentFrame } = require("playwright/lib/server/playwright");2const { Frame } = require("playwright/lib/server/dom");3const { Page } = require("playwright/lib/server/page");4const page = new Page();5const frame = new Frame(page, "frameId", "frameName");6const nativeComponentFrame = describeNativeComponentFrame(frame, "#root");7console.log(nativeComponentFrame);8const { describeNativeComponents } = require("playwright/lib/server/playwright");9const { Frame } = require("playwright/lib/server/dom");10const { Page } = require("playwright/lib/server/page");11const page = new Page();12const frame = new Frame(page, "frameId", "frameName");13const nativeComponents = await describeNativeComponents(frame, "#root");14console.log(nativeComponents);15const { describeNativeComponent } = require("playwright/lib/server/playwright");16const { Frame } = require("playwright/lib/server/dom");17const { Page } = require("playwright/lib/server/page");18const page = new Page();19const frame = new Frame(page, "frameId", "frameName");20const nativeComponent = await describeNativeComponent(frame, "#root

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright-core/lib/server/supplements/utils/playwrightInspector');2const { Frame } = require('playwright-core/lib/server/supplements/utils/playwrightInspector');3const frame = new Frame();4const elementHandle = await frame.$('text=Hello World');5const nativeComponent = await describeNativeComponentFrame(elementHandle);6console.log(nativeComponent);7    at Frame.describeNativeComponentFrame (/Users/xyz/Desktop/Playwright/playwright-core/lib/server/supplements/utils/playwrightInspector.js:91:100)8    at runMicrotasks (<anonymous>)9    at processTicksAndRejections (internal/process/task_queues.js:93:5)

Using AI Code Generation

1const { describeNativeComponentFrame } = require('@playwright/test/lib/server/chromium/crConnection.js');2cos { chromium } = requir('playwight');3(async () => {4  cost browser = awit chromium.aunch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const element = await page.$('text="API Reference"');8  const componentFrame = await describeNativeComponentFrame(page, element._remoteObject.objectId);9  console.log(componentFrame);10  await browser.close();11})();12{ 13  attributes: { 14  },15  frame: { 16  }17}18andle);

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright/lib/server/frames');2const { Frame } = require('playwright/lib/server/chromium/crPage');3console.log(describeNativeComponentFrame(Frame));4const { describeNativeComponentFrame } = require('playwright/lib/server/frames');5const { Frame } = require('playwright/lib/server/chromium/crPage');6console.log(describeNativeComponentFrame(Frame));7const { describNativeComponentFrame } = require('playwright/lib/server/frames');8const { Frame } = require('playwright/lib/server/chromium/crPage'9console.log(describeNativeComponentFrame(Frame));10const { describeNativeComponentFrame } = require('playwright/lib/server/frames');11const { Frame } = require('playwright/lib/server/chromium/crPage');12console.log(describeNativeComponentFrame(Frame));13const { describeNativeComponentFrame } = require('playwright/lib/server/frames');14const { Frame } = require('playwright/lib/server/chromium/crPage');15console.log(describeNativeComponentFrame(Frame));16const { describeNativeComponentFrame } = require('playwright/lib/server/frames');17const { Frame } = require('playwright/lib/server/chromium/crPage');18console.log(describeNativeComponentFrame(Frame));19const { describeNativeComponentFrame } = require('playwright/lib/server/frames');20const { Frame } = require('playwright/lib/server/chromium/crPage');21console.log(describeNativeComponentFrame(Frame));22const { describeNativeComponentFrame } = require('playwright/lib/server/frames');23const { Frame } = require('playwright/lib/server/chromium/crPage');24console.log(describeNativeComponentFrame(Frame));25const elementHandle = await frame.$('text=Hello World');26const nativeComponent = await describeNativeComponentFrame(elementHandle);27console.log(nativeComponent);28const elementHandle = await frame.$('text=Hello World');29const nativeComponent = await describeNativeComponentFrame(elementHandle);30console.log(nativeComponent);31const elementHandle = await frame.$('text=Hello World');32const nativeComponent = await describeNativeComponentFrame(elementHandle);

Using AI Code Generation

1const { describeNativeComponentFrame } = require('playwright/lib/server/frames');2const { Frame } = require('playwright/lib/server/chromium/crPage');3console.log(describeNativeComponentFrame(Frame));4const { describeNativeComponentFrame } = require('playwright/lib/server/frames');5const { Frame } = require('playwright/lib/server/chromium/crPage');6console.log(describeNativeComponentFrame(Frame));7const { describeNativeComponentFrame } = require('playwright/lib/server/frames');8const { Frame } = require('playwright/lib/server/chromium/crPage');9console.log(describeNativeComponentFrame(Frame));10const { describeNativeComponentFrame } = require('playwright/lib/server/frames');11const { Frame } = require('playwright/lib/server/chromium/crPage');12console.log(describeNativeComponentFrame(Frame));13const { describeNativeComponentFrame } = require('playwright/lib/server/frames');14const { Frame } = require('playwright/lib/server/chromium/crPage');15console.log(describeNativeComponentFrame(Frame));16const { describeNativeComponentFrame } = require('playwright/lib/server/frames');17const { Frame } = require('playwright/lib/server/chromium/crPage');18console.log(describeNativeComponentFrame(Frame));19const { describeNativeComponentFrame } = require('playwright/lib/server/frames');20const { Frame } = require('playwright/lib/server/chromium/crPage');21console.log(describeNativeComponentFrame(Frame));22const { describeNativeComponentFrame } = require('playwright/lib/server/frames');23const { Frame } = require('playwright/lib/server/chromium/crPage');24console.log(describeNativeComponentFrame(Frame));

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