Best JavaScript code snippet using playwright-internal
documentation.js
Source:documentation.js  
...128    this._patchLinks(null, nodes);129  }130  generateSourceCodeComments() {131    for (const clazz of this.classesArray)132      clazz.visit(item => item.comment = generateSourceCodeComment(item.spec));133  }134}135Documentation.Class = class {136  /**137   * @param {Langs} langs138   * @param {string} name139   * @param {!Array<!Documentation.Member>} membersArray140   * @param {?string=} extendsName141   * @param {MarkdownNode[]=} spec142   */143  constructor(langs, name, membersArray, extendsName = null, spec = undefined) {144    this.langs = langs;145    this.name = name;146    this.membersArray = membersArray;147    this.spec = spec;148    this.extends = extendsName;149    this.comment =  '';150    this.index();151    const match = name.match(/(API|JS|CDP|[A-Z])(.*)/);152    this.varName = match[1].toLowerCase() + match[2];153  }154  index() {155    /** @type {!Map<string, !Documentation.Member>} */156    this.members = new Map();157    /** @type {!Map<string, !Documentation.Member>} */158    this.properties = new Map();159    /** @type {!Array<!Documentation.Member>} */160    this.propertiesArray = [];161    /** @type {!Map<string, !Documentation.Member>} */162    this.methods = new Map();163    /** @type {!Array<!Documentation.Member>} */164    this.methodsArray = [];165    /** @type {!Map<string, !Documentation.Member>} */166    this.events = new Map();167    /** @type {!Array<!Documentation.Member>} */168    this.eventsArray = [];169    for (const member of this.membersArray) {170      this.members.set(member.name, member);171      if (member.kind === 'method') {172        this.methods.set(member.name, member);173        this.methodsArray.push(member);174      } else if (member.kind === 'property') {175        this.properties.set(member.name, member);176        this.propertiesArray.push(member);177      } else if (member.kind === 'event') {178        this.events.set(member.name, member);179        this.eventsArray.push(member);180      }181      member.clazz = this;182      member.index();183    }184  }185  /**186   * @param {string} lang187   */188  filterForLanguage(lang) {189    const membersArray = [];190    for (const member of this.membersArray) {191      if (member.langs.only && !member.langs.only.includes(lang))192        continue;193      member.filterForLanguage(lang);194      membersArray.push(member);195    }196    this.membersArray = membersArray;197  }198  validateOrder(errors, cls) {199    const members = this.membersArray;200    // Events should go first.201    let eventIndex = 0;202    for (; eventIndex < members.length && members[eventIndex].kind === 'event'; ++eventIndex);203    for (; eventIndex < members.length && members[eventIndex].kind !== 'event'; ++eventIndex);204    if (eventIndex < members.length)205      errors.push(`Events should go first. Event '${members[eventIndex].name}' in class ${cls.name} breaks order`);206    // Constructor should be right after events and before all other members.207    const constructorIndex = members.findIndex(member => member.kind === 'method' && member.name === 'constructor');208    if (constructorIndex > 0 && members[constructorIndex - 1].kind !== 'event')209      errors.push(`Constructor of ${cls.name} should go before other methods`);210    // Events should be sorted alphabetically.211    for (let i = 0; i < members.length - 1; ++i) {212      const member1 = this.membersArray[i];213      const member2 = this.membersArray[i + 1];214      if (member1.kind !== 'event' || member2.kind !== 'event')215        continue;216      if (member1.name.localeCompare(member2.name, 'en', { sensitivity: 'base' }) > 0)217        errors.push(`Event '${member1.name}' in class ${this.name} breaks alphabetic ordering of events`);218    }219    // All other members should be sorted alphabetically.220    for (let i = 0; i < members.length - 1; ++i) {221      const member1 = this.membersArray[i];222      const member2 = this.membersArray[i + 1];223      if (member1.kind === 'event' || member2.kind === 'event')224        continue;225      if (member1.kind === 'method' && member1.name === 'constructor')226        continue;227      if (member1.name.replace(/^\$+/, '$').localeCompare(member2.name.replace(/^\$+/, '$'), 'en', { sensitivity: 'base' }) > 0) {228        let memberName1 = `${this.name}.${member1.name}`;229        if (member1.kind === 'method')230          memberName1 += '()';231        let memberName2 = `${this.name}.${member2.name}`;232        if (member2.kind === 'method')233          memberName2 += '()';234        errors.push(`Bad alphabetic ordering of ${this.name} members: ${memberName1} should go after ${memberName2}`);235      }236    }237  }238  /**239   * @param {function(Documentation.Member|Documentation.Class): void} visitor240   */241  visit(visitor) {242    visitor(this);243    for (const p of this.propertiesArray)244      p.visit(visitor);245    for (const m of this.methodsArray)246      m.visit(visitor);247    for (const e of this.eventsArray)248      e.visit(visitor);249  }250};251Documentation.Member = class {252  /**253   * @param {string} kind254   * @param {Langs} langs255   * @param {string} name256   * @param {?Documentation.Type} type257   * @param {!Array<!Documentation.Member>} argsArray258   * @param {MarkdownNode[]=} spec259   * @param {boolean=} required260   * @param {string[]=} templates261   */262  constructor(kind, langs, name, type, argsArray, spec = undefined, required = true, templates = []) {263    this.kind = kind;264    this.langs = langs;265    this.name = name;266    this.type = type;267    this.spec = spec;268    this.argsArray = argsArray;269    this.required = required;270    this.comment =  '';271    /** @type {!Map<string, !Documentation.Member>} */272    this.args = new Map();273    this.index();274    /** @type {!Documentation.Class} */275    this.clazz = null;276    /** @type {Documentation.Member=} */277    this.enclosingMethod = undefined;278    this.deprecated = false;279    if (spec) {280      md.visitAll(spec, node => {281        if (node.text && node.text.includes('**DEPRECATED**'))282          this.deprecated = true;283      });284    };285    this.async = false;286    this.alias = name;287    this.overloadIndex = 0;288    if (name.includes('#')) {289      const match = name.match(/(.*)#(.*)/);290      this.alias = match[1];291      this.overloadIndex = (+match[2]) - 1;292    }293    /**294     * Param is true and option false295     * @type {Boolean}296     */297    this.paramOrOption = null;298  }299  index() {300    this.args = new Map();301    if (this.kind === 'method')302      this.enclosingMethod = this;303    for (const arg of this.argsArray) {304      this.args.set(arg.name, arg);305      arg.enclosingMethod = this;306      if (arg.name === 'options') {307        arg.type.properties.sort((p1, p2) => p1.name.localeCompare(p2.name));308        arg.type.properties.forEach(p => p.enclosingMethod = this);309      }310    }311  }312    /**313   * @param {string} lang314   */315  filterForLanguage(lang) {316    if (this.langs.aliases && this.langs.aliases[lang])317      this.alias = this.langs.aliases[lang];318    if (this.langs.types && this.langs.types[lang])319      this.type = this.langs.types[lang];320    this.type.filterForLanguage(lang);321    const argsArray = [];322    for (const arg of this.argsArray) {323      if (arg.langs.only && !arg.langs.only.includes(lang))324        continue;325      const overriddenArg = (arg.langs.overrides && arg.langs.overrides[lang]) || arg;326      overriddenArg.filterForLanguage(lang);327      if (overriddenArg.name === 'options' && !overriddenArg.type.properties.length)328        continue;329      argsArray.push(overriddenArg);330    }331    this.argsArray = argsArray;332  }333  clone() {334    const result = new Documentation.Member(this.kind, this.langs, this.name, this.type, this.argsArray, this.spec, this.required);335    result.async = this.async;336    result.paramOrOption = this.paramOrOption;337    return result;338  }339  /**340   * @param {Langs} langs341   * @param {string} name342   * @param {!Array<!Documentation.Member>} argsArray343   * @param {?Documentation.Type} returnType344   * @param {MarkdownNode[]=} spec345   * @return {!Documentation.Member}346   */347  static createMethod(langs, name, argsArray, returnType, spec) {348    return new Documentation.Member('method', langs, name, returnType, argsArray, spec);349  }350  /**351   * @param {!Langs} langs352   * @param {!string} name353   * @param {!Documentation.Type} type354   * @param {!MarkdownNode[]=} spec355   * @param {boolean=} required356   * @return {!Documentation.Member}357   */358  static createProperty(langs, name, type, spec, required) {359    return new Documentation.Member('property', langs, name, type, [], spec, required);360  }361  /**362   * @param {Langs} langs363   * @param {string} name364   * @param {?Documentation.Type=} type365   * @param {MarkdownNode[]=} spec366   * @return {!Documentation.Member}367   */368  static createEvent(langs, name, type = null, spec) {369    return new Documentation.Member('event', langs, name, type, [], spec);370  }371  /**372   * @param {function(Documentation.Member|Documentation.Class): void} visitor373   */374  visit(visitor) {375    visitor(this);376    if (this.type)377      this.type.visit(visitor);378    for (const arg of this.argsArray)379      arg.visit(visitor);380  }381};382Documentation.Type = class {383  /**384   * @param {string} expression385   * @param {!Array<!Documentation.Member>=} properties386   * @return {Documentation.Type}387   */388  static parse(expression, properties = []) {389    expression = expression.replace(/\\\(/g, '(').replace(/\\\)/g, ')');390    const type = Documentation.Type.fromParsedType(parseTypeExpression(expression));391    type.expression = expression;392    if (type.name === 'number')393      throw new Error('Number types should be either int or float, not number in: ' + expression);394    if (!properties.length)395      return type;396    const types = [];397    type._collectAllTypes(types);398    let success = false;399    for (const t of types) {400      if (t.name === 'Object') {401        t.properties = properties;402        success = true;403      }404    }405    if (!success)406      throw new Error('Nested properties given, but there are no objects in type expression: ' + expression);407    return type;408  }409  /**410   * @param {ParsedType} parsedType411   * @return {Documentation.Type}412   */413  static fromParsedType(parsedType, inUnion = false) {414    if (!inUnion && parsedType.union) {415      const type = new Documentation.Type(parsedType.unionName || '');416      type.union = [];417      for (let t = parsedType; t; t = t.union) {418        const nestedUnion = !!t.unionName && t !== parsedType;419        type.union.push(Documentation.Type.fromParsedType(t, !nestedUnion));420        if (nestedUnion)421          break;422      }423      return type;424    }425    if (parsedType.args) {426      const type = new Documentation.Type('function');427      type.args = [];428      for (let t = parsedType.args; t; t = t.next)429        type.args.push(Documentation.Type.fromParsedType(t));430      type.returnType = parsedType.retType ? Documentation.Type.fromParsedType(parsedType.retType) : null;431      return type;432    }433    if (parsedType.template) {434      const type = new Documentation.Type(parsedType.name);435      type.templates = [];436      for (let t = parsedType.template; t; t = t.next)437        type.templates.push(Documentation.Type.fromParsedType(t));438      return type;439    }440    return new Documentation.Type(parsedType.name);441  }442  /**443   * @param {string} name444   * @param {!Array<!Documentation.Member>=} properties445   */446  constructor(name, properties) {447    this.name = name.replace(/^\[/, '').replace(/\]$/, '');448    this.properties = this.name === 'Object' ? properties : undefined;449    /** @type {Documentation.Type[]} | undefined */450    this.union;451    /** @type {Documentation.Type[]} | undefined */452    this.args;453    /** @type {Documentation.Type} | undefined */454    this.returnType;455    /** @type {Documentation.Type[]} | undefined */456    this.templates;457    /** @type {string | undefined } */458    this.expression;459  }460  visit(visitor) {461    const types = [];462    this._collectAllTypes(types);463    for (const type of types) {464      for (const p of type.properties || [])465        p.visit(visitor);466    }467  }468  /**469   * @returns {Documentation.Member[]}470   */471  deepProperties() {472    const types = [];473    this._collectAllTypes(types);474    for (const type of types) {475      if (type.properties && type.properties.length)476        return type.properties;477    }478    return [];479  }480  /**481    * @returns {Documentation.Member[]}482  */483  sortedProperties() {484    if (!this.properties)485      return this.properties;486    const sortedProperties = [...this.properties];487    sortedProperties.sort((p1, p2) => p1.name.localeCompare(p2.name));488    return sortedProperties;489  }490  /**491   * @param {string} lang492   */493  filterForLanguage(lang) {494    if (!this.properties)495      return;496    const properties = [];497    for (const prop of this.properties) {498      if (prop.langs.only && !prop.langs.only.includes(lang))499        continue;500      prop.filterForLanguage(lang);501      properties.push(prop);502    }503    this.properties = properties;504  }505  /**506   * @param {Documentation.Type[]} result507   */508  _collectAllTypes(result) {509    result.push(this);510    for (const t of this.union || [])511      t._collectAllTypes(result);512    for (const t of this.args || [])513      t._collectAllTypes(result);514    for (const t of this.templates || [])515      t._collectAllTypes(result);516    if (this.returnType)517      this.returnType._collectAllTypes(result);518  }519};520/**521 * @param {ParsedType} type522 * @returns {boolean}523 */524function isStringUnion(type) {525  if (!type.union)526    return false;527  while (type) {528    if (!type.name.startsWith('"') || !type.name.endsWith('"'))529      return false;530    type = type.union;531  }532  return true;533}534/**535 * @param {string} type536 * @returns {ParsedType}537 */538function parseTypeExpression(type) {539  type = type.trim();540  let name = type;541  let next = null;542  let template = null;543  let args = null;544  let retType = null;545  let firstTypeLength = type.length;546  for (let i = 0; i < type.length; i++) {547    if (type[i] === '<') {548      name = type.substring(0, i);549      const matching = matchingBracket(type.substring(i), '<', '>');550      template = parseTypeExpression(type.substring(i + 1, i + matching - 1));551      firstTypeLength = i + matching;552      break;553    }554    if (type[i] === '(') {555      name = type.substring(0, i);556      const matching = matchingBracket(type.substring(i), '(', ')');557      args = parseTypeExpression(type.substring(i + 1, i + matching - 1));558      i = i + matching;559      if (type[i] === ':') {560        retType = parseTypeExpression(type.substring(i + 1));561        next = retType.next;562        retType.next = null;563        break;564      }565    }566    if (type[i] === '|' || type[i] === ',') {567      name = type.substring(0, i);568      firstTypeLength = i;569      break;570    }571  }572  let union = null;573  if (type[firstTypeLength] === '|')574    union = parseTypeExpression(type.substring(firstTypeLength + 1));575  else if (type[firstTypeLength] === ',')576    next = parseTypeExpression(type.substring(firstTypeLength + 1));577  if (template && !template.unionName && isStringUnion(template)) {578    template.unionName = name;579    return template;580  }581  return {582    name,583    args,584    retType,585    template,586    union,587    next588  };589}590/**591 * @param {string} str592 * @param {any} open593 * @param {any} close594 */595function matchingBracket(str, open, close) {596  let count = 1;597  let i = 1;598  for (; i < str.length && count; i++) {599    if (str[i] === open)600      count++;601    else if (str[i] === close)602      count--;603  }604  return i;605}606/**607 * @param {Documentation.Class|Documentation.Member|null} classOrMember608 * @param {MarkdownNode[]} spec609 * @param {Map<string, Documentation.Class>} classesMap610 * @param {Map<string, Documentation.Member>} membersMap611 * @param {Renderer} linkRenderer612 */613function patchLinks(classOrMember, spec, classesMap, membersMap, linkRenderer) {614  if (!spec)615    return;616  md.visitAll(spec, node => {617    if (!node.text)618      return;619    node.text = node.text.replace(/\[`(\w+): ([^\]]+)`\]/g, (match, p1, p2) => {620      if (['event', 'method', 'property'].includes(p1)) {621        const memberName = p1 + ': ' + p2;622        const member = membersMap.get(memberName);623        if (!member)624          throw new Error('Undefined member references: ' + match);625        return linkRenderer({ member }) || match;626      }627      if (p1 === 'param') {628        let alias = p2;629        if (classOrMember) {630          // param/option reference can only be in method or same method parameter comments.631          // @ts-ignore632          const method = classOrMember.enclosingMethod;633          const param = method.argsArray.find(a => a.name === p2);634          if (!param)635            throw new Error(`Referenced parameter ${match} not found in the parent method ${method.name} `);636          alias = param.alias;637        }638        return linkRenderer({ param: alias }) || match;639      }640      if (p1 === 'option')641        return linkRenderer({ option: p2 }) || match;642      throw new Error(`Undefined link prefix, expected event|method|property|param|option, got: ` + match);643    });644    node.text = node.text.replace(/\[([\w]+)\]/g, (match, p1) => {645      const clazz = classesMap.get(p1);646      if (clazz)647        return linkRenderer({ clazz }) || match;648      return match;649    });650  });651}652/**653 * @param {MarkdownNode[]} spec654 */655function generateSourceCodeComment(spec) {656  const comments = (spec || []).filter(n => !n.type.startsWith('h') && (n.type !== 'li' ||  n.liType !== 'default')).map(c => md.clone(c));657  md.visitAll(comments, node => {658    if (node.liType === 'bullet')659      node.liType = 'default';660    if (node.type === 'note') {661      node.type = 'text';662      node.text = '> NOTE: ' + node.text;663    }664  });665  return md.render(comments, 120);666}...Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright/lib/utils/sourceCode');2const { test } = require('@playwright/test');3test('generateSourceCodeComment', async ({ page }) => {4  console.log(sourceCodeComment);5});6### `generateSourceCodeComment(methodName, page, ...args)`7[Apache-2.0](LICENSE)Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');2const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10);3console.log(sourceCodeComment);4const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');5const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test');6console.log(sourceCodeComment);7const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');8const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test');9console.log(sourceCodeComment);10const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');11const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test');12console.log(sourceCodeComment);13const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');14const sourceCodeComment = generateSosrceCodeComment('test.js', 'test', 10, 'test', 'test', 'test', 'oest');15console.log(sourceCodeComment);16conct { generateSourceCodeComment } = require(eplaywright/lib/utils/stackTrace'Code');17const sour{eC deCotest } = require('@playwright/test');'test', 0, 'test', 'test', 'test', 'test', 'test'18  console.log(sourceCodeComment);19});20### `generateSourceCodeComment(methodName, page, ...args)`21[Apache-2.0](LICENSE)Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright-core/lib/utils/sourceMaps');2const sourceCode = generateSourceCodeComment('test.js', 'function test() { return 1; }');3console.log(sourceCode);4const { chromium } = require('playwright');5(async () => {6  const browser = await chromium.launch();7  const context = await browser.newContext();8  const page = await context.newPage();9  await page.screenshot({ path: 'example.png' });10  await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const page = await browser.newPage();16  await page.screenshot({ path: 'example.png' });17  await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21  const browser = await chromium.launch();22  const page = await browser.newPage();23  const frame = page.mainFrame();24  await frame.screenshot({ path: 'example.png' });25  await browser.close();26})(t;27ElementHandles can be created with the `page.$ = generateSourceCodeComment('test.js', 'test', 10, 'test');28console.log(sourceCodeComment);29const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');30const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test');31console.log(sourceCodeComment);32const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');33const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test');34console.log(sourceCodeComment);Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright/lib/utils/sourceCode');2const code = generateSourceCodeComment(__filename, 1, 1);3console.log(code);4const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');5const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test', 'test');6console.log(sourceCodeComment);7const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');8const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test', 'test', 'test');9console.log(sourceCodeComment);Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');2const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10);3console.log(sourceCodeComment);4const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');5const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test');6console.log(sourceCodeComment);7const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');8const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test');9console.log(sourceCodeComment);10const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');11const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test');12console.log(sourceCodeComment);Using AI Code Generation
1const {generateSourceCodeComment} = require('playwright/lib/utils/sourceCodeComment');2const sourceCodeComment = generateSourceCodeComment('myFile.js', 'myFunction', 10);3console.log(sourceCodeComment);4const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');5const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test', 'test');6console.log(sourceCodeComment);7const { generateSourceCodeComment } = require('playwright/lib/utils/stackTrace');8const sourceCodeComment = generateSourceCodeComment('test.js', 'test', 10, 'test', 'test', 'test', 'test', 'test');9console.log(sourceCodeComment);Using AI Code Generation
1const { generateSourceCodeComment } = require('playwright/lib/utils/sourceCode');2const code = generateSourceCodeComment(__filename, 1, 1);3console.log(code);4const { generateSourceCodeComment } = require('playwright-core/lib/utils/sourceCodeComment');5const comment = generateSourceCodeComment({ file: 'test.js', lineNumber: 10, columnNumber: 10 });6console.log(comment);7[Apache 2.0](LICENSE)LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
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