How to use stripStream method in Cypress

1/* eslint-disable no-await-in-loop */2const sharp = require('sharp');3const stream = require('stream');4const logger = require('../../../logger');5const readMovieClip = (buffer, tag, tagLength) => {6  if (tag === 0x3) {7    console.warn('Deprecated tag in movie clip: 0x3');8    buffer.readBuffer(tagLength);9    return null;10  }11  if (tag === 0xe) {12    console.warn('Unsupported tag in movie clip: 0xE');13    buffer.readBuffer(tagLength);14    return null;15  }16  const exportId = buffer.readUInt16LE();17  // logger.debug(`MovieClip exportId: ${exportId}`);18  const frameRate = buffer.readUInt8();19  const frameCount = buffer.readUInt16LE();20  const frameResourcesCount = buffer.readUInt32LE();21  const frameResources = [];22  for (let i = 0; i < frameResourcesCount; i += 1) {23    // First number - index of resourcesMapping24    // Second number - index of transform matrix or default matrix if -125    // Third number - index of color transform or default if -126    frameResources.push({27      resourceIndex: buffer.readInt16LE(),28      transformMatrixIndex: buffer.readUInt16LE(),29      colorTransformIndex: buffer.readUInt16LE(),30    });31    if (exportId === 282 || exportId === 280) {32      // logger.debug(frameResources[i]);33    }34  }35  const numberOfResources = buffer.readUInt16LE();36  const resourcesMapping = [];37  for (let i = 0; i < numberOfResources; i += 1) {38    resourcesMapping.push(buffer.readInt16LE());39  }40  const blendingFactors = [];41  for (let i = 0; i < numberOfResources; i += 1) {42    const blending = tag === 0xc || tag === 0x23 ? buffer.readUInt8() : 0;43    // Blending equation is always s+d with the following factors44    // https://www.cairographics.org/operators/45    // https://en.wikipedia.org/wiki/Blend_modes46    const flag = (blending >> 6) & 1; // maybe inverted? (over -> dest_over). could also be invert colors47    switch (blending & 0x3f) {48      case 3:49        // A combination of mix and multiply. if alphaA = 0, take B. if alphaA=1, take AB.50        blendingFactors.push({ s: 'GL_DST_COLOR', d: 'GL_ONE_MINUS_SRC_ALPHA' });51        break;52      case 4:53        // CAIRO_OPERATOR_SCREEN. Screen54        blendingFactors.push({ s: 'GL_ONE', d: 'GL_ONE_MINUS_SRC_COLOR' });55        break;56      case 8:57        // CAIRO_OPERATOR_ADD. Linear dodge58        blendingFactors.push({ s: 'GL_ONE', d: 'GL_ONE' });59        break;60      // Not sure about 0xc and 0xf61      case 0xc:62      case 0xf: // only god knows. Not even used afaik63        blendingFactors.push({ s: 'GL_SRC_ALPHA', d: 'GL_ONE_MINUS_SRC_ALPHA' });64        break;65      default:66        // CAIRO_OPERATOR_OVER, A mix.67        // if alphaA = 0, take B.if alphaA = 1, take A.68        // Everything in between is a mix of A and B69        blendingFactors.push({ s: 'GL_ONE', d: 'GL_ONE_MINUS_SRC_ALPHA' });70    }71  }72  const resourcesStrings = [];73  for (let i = 0; i < numberOfResources; i += 1) {74    // this is always empty on shapes.75    // usually contains something with text fields and movies, but not always76    // maybe default string?77    const string = buffer.scReadString();78    resourcesStrings.push(string);79    // logger.debug(`id: ${resourcesMapping[i]} x string: ${string}`);80  }81  let frameTag;82  let currentFrameResourceIndex = 0;83  const movieClip = {84    exportId,85    type: 'movieClip',86    frameRate,87    resourcesMapping,88    frameCount,89    blendingFactors,90    resourcesStrings,91  };92  movieClip.frames = [];93  while (frameTag !== 0) {94    frameTag = buffer.readUInt8();95    const frameTagLength = buffer.readUInt32LE();96    if (frameTagLength === 0) {97      break;98    }99    switch (frameTag) {100      case 0x05:101        console.warn('Deprecated tag in movie clip frame: 0x5');102        break;103      case 0x0b: {104        const numberOfResourcesInCurrentFrame = buffer.readUInt16LE();105        const frameName = buffer.scReadString();106        if (frameName !== null) {107          // logger.debug(`frameName: ${frameName}`);108        }109        const currentFrameResources = [];110        for (let i = 0; i < numberOfResourcesInCurrentFrame; i += 1) {111          currentFrameResources.push(frameResources[currentFrameResourceIndex + i]);112        }113        movieClip.frames.push({114          frameName,115          frameResources: currentFrameResources,116        });117        currentFrameResourceIndex += numberOfResourcesInCurrentFrame;118        break;119      }120      case 0x1f: {121        movieClip.nineSliceRegion = {122          left: buffer.scReadTwip(),123          top: buffer.scReadTwip(),124          right: buffer.scReadTwip(),125          bottom: buffer.scReadTwip(),126        };127        break;128      }129      case 0x29: { // only happens in effects_brawler i think130        movieClip.something = buffer.readUInt8();131        // console.log(`frame type 0x29: ${movieClip.something}`);132        break;133      }134      default:135    }136  }137  // console.log({ ...movieClip, frames: movieClip.frames.map((f) => f.frameName) });138  return movieClip;139};140const getTransformMatrix = (transformMatrices, index) => (141  index !== 0xffff ? transformMatrices[index] : null142);143const getColorTransformation = (colorTransforms, index) => (144  index !== 0xffff ? colorTransforms[index] : null145);146const applyTransforms = async (sharpObject, transformation, colorTransformation) => {147  const colorTransformedSharp = sharp(sharpObject.data, {148    raw: {149      channels: sharpObject.info.channels,150      width: sharpObject.info.width,151      height: sharpObject.info.height,152    },153  });154  // if (colorTransformation !== null) {155  //   const pixels = await resource.sharp.toBuffer({ resolveWithObject: true });156  //   const newPixels = imageUtils.applyColorTransformation(157  //     pixels.data,158  //     colorTransformation,159  //   );160  //   colorTransformedSharp = sharp(Buffer.from(newPixels), {161  //     raw: {162  //       channels: pixels.info.channels,163  //       width: pixels.info.width,164  //       height: pixels.info.height,165  //     },166  //   });167  // }168  let transformedSharp = colorTransformedSharp;169  if (transformation) {170    transformedSharp = transformedSharp171      .affine(transformation.matrix, {172        background: {173          r: 0, g: 0, b: 0, alpha: 0,174        },175      });176  }177  return transformedSharp.raw()178    .toBuffer({ resolveWithObject: true });179};180const pushIntoStripStream = (stripStream, frames, maxWidth, pageHeight) => {181  frames.forEach((frame) => {182    const stripBuffer = new Array(maxWidth * pageHeight * 4).fill(0);183    const left = Math.floor((maxWidth - frame.info.width) / 2);184    const top = Math.floor((pageHeight - frame.info.height) / 2);185    for (let i = 0; i < frame.info.height; i += 1) {186      for (let j = 0; j < frame.info.width; j += 1) {187        const x = left + j;188        const y = top + i;189        stripBuffer[(y * maxWidth + x) * 4] = frame.data[(i * frame.info.width + j) * 4];190        stripBuffer[(y * maxWidth + x) * 4 + 1] = frame.data[(i * frame.info.width + j) * 4 + 1];191        stripBuffer[(y * maxWidth + x) * 4 + 2] = frame.data[(i * frame.info.width + j) * 4 + 2];192        stripBuffer[(y * maxWidth + x) * 4 + 3] = frame.data[(i * frame.info.width + j) * 4 + 3];193      }194    }195    stripStream.push(Buffer.from(stripBuffer));196  });197  stripStream.push(null);198};199const compositeFrame = async (images) => {200  const left = Math.min(0, ...images.map(({ t }) => (t ? t.odx : 0)));201  const top = Math.min(0, ...images.map(({ t }) => (t ? t.ody : 0)));202  const right = Math.max(0, ...images.map(({ part, t }) => part.info.width + (t ? t.odx : 0)));203  const bottom = Math.max(0, ...images.map(({ part, t }) => part.info.height + (t ? t.ody : 0)));204  if (images.length === 1) {205    const { t } = images[0];206    return sharp(images[0].part.data, {207      raw: {208        channels: 4,209        width: images[0].part.info.width,210        height: images[0].part.info.height,211      },212    })213      .extend({214        top: t && t.ody > 0 ? Math.ceil(t.ody) : 0,215        bottom: t && t.ody < 0 ? Math.ceil(-t.ody) : 0,216        left: t && t.odx > 0 ? Math.ceil(t.odx) : 0,217        right: t && t.odx < 0 ? Math.ceil(-t.odx) : 0,218        background: {219          r: 0, g: 0, b: 0, alpha: 0,220        },221      })222      .toBuffer({ resolveWithObject: true });223  }224  // const width = Math.round(right - left);225  // const height = Math.round(bottom - top);226  // const pixels = new Uint8Array(width * height * 4);227  // images.forEach(({ part, t }) => {228  //   const partLeft = Math.round((t ? t.odx : 0) - left);229  //   const partTop = Math.round((t ? t.ody : 0) - top);230  //   for (let i = 0; i < part.data.length; i += 4) {231  //     const x = Math.floor(i / 4) % part.info.width;232  //     const y = Math.floor(Math.floor(i / 4) / part.info.width);233  //     const pixel = 4 * (width * (partTop + y) + (partLeft + x));234  //     const a = pixels;235  //     const b = part.data;236  //     const newAlpha = a[pixel + 3] / 255 + b[i + 3] / 255 * (1 - a[pixel + 3] / 255);237  //     pixels[pixel] = (a[pixel] / 255 + b[i] / 255 * (1 - a[pixel + 3] / 255)) / newAlpha * 255;238  //     pixels[pixel + 1] = (a[pixel + 1] / 255 + b[i + 1] / 255 * (1 - a[pixel + 3] / 255)) / newAlpha * 255;239  //     pixels[pixel + 2] = (a[pixel + 2] / 255 + b[i + 2] / 255 * (1 - a[pixel + 3] / 255)) / newAlpha * 255;240  //     pixels[pixel + 3] = newAlpha * 255;241  //     // if (242  //     //   pixels[currentPixelIndex] === 0 && pixels[currentPixelIndex + 1] === 0243  //     //   && pixels[currentPixelIndex + 2] === 0 && pixels[currentPixelIndex + 3] === 0) {244  //     //   for (let j = 0; j < 4; j += 1) {245  //     //     pixels[4 * (width * (partTop + y) + (partLeft + x)) + j] = a[i + j];246  //     //   }247  //     // }248  //   }249  // });250  // return {251  //   data: pixels,252  //   info: {253  //     channels: 4,254  //     width,255  //     height,256  //   },257  // };258  const finalFrame = sharp({259    create: {260      channels: 4,261      width: Math.round(right - left),262      height: Math.round(bottom - top),263      background: {264        r: 0, g: 0, b: 0, alpha: 0,265      },266    },267  }).composite(images.map(({ part, t }) => ({268    input: part.data,269    raw: {270      channels: 4,271      width: part.info.width,272      height: part.info.height,273    },274    blend: 'over',275    left: Math.round((t ? t.odx : 0) - left),276    top: Math.round((t ? t.ody : 0) - top),277  })));278  // const blends = ['overlay'];279  // const blends = ['clear', 'source', 'over', 'in',280  //   'out', 'atop', 'dest', 'dest-over', 'dest-in',281  //   'dest-out', 'dest-atop', 'xor', 'add', 'saturate',282  //   'multiply', 'screen', 'overlay', 'darken', 'lighten',283  //   'colour-dodge', 'color-dodge', 'colour-burn', 'color-burn',284  //   'hard-light', 'soft-light', 'difference', 'exclusion'];285  // for (let j = 0; j < blends.length; j += 1) {286  //   await sharp({287  //     create: {288  //       channels: 4,289  //       width: Math.round(right - left),290  //       height: Math.round(bottom - top),291  //       background: {292  //         r: 0, g: 0, b: 0, alpha: 0,293  //       },294  //     },295  //   }).composite(parts.map((c, i) => ({296  //     input: c.data,297  //     raw: {298  //       channels: 4,299  //       width: c.info.width,300  //       height: c.info.height,301  //     },302  //     left: Math.round(transformations[i].odx - left),303  //     top: Math.round(transformations[i].ody - top),304  //     blend: blends[j],305  //   }))).png().toFile(`out/sc/wtfffffff-${blends[j]}.png`);306  // }307  return finalFrame.toBuffer({ resolveWithObject: true });308};309const createMovieClip = async (310  exportId,311  resources,312  transformMatrices,313  colorTransforms,314) => {315  const cache = [];316  const movieClip = resources[exportId];317  movieClip.actualFrameCount = Math.min(200, Math.max(318    movieClip.frameCount,319    ...movieClip.resourcesMapping.map((rm) => resources[rm].actualFrameCount || 1),320  ));321  movieClip.finalFrames = [];322  for (let i = 0; i < movieClip.actualFrameCount; i += 1) {323    const currentFrame = movieClip.frames[i % movieClip.frames.length];324    const promises = [];325    const numberOfResources = Math.min(5, currentFrame.frameResources.length);326    for (let j = 0; j < numberOfResources; j += 1) {327      const frameResources = currentFrame.frameResources[j];328      const resourceExportId = movieClip.resourcesMapping[frameResources.resourceIndex];329      const resource = resources[resourceExportId];330      const transform = getTransformMatrix(transformMatrices, frameResources.transformMatrixIndex);331      const colorTransform = getColorTransformation(332        colorTransforms,333        frameResources.colorTransformIndex,334      );335      const cacheKey = resourceExportId.toString()336        + (resource.type === 'movieClip' ? i % resource.finalFrames.length : '')337        + transform?.matrix?.toString();338      let appliedTransform = cache[cacheKey];339      if (!appliedTransform) {340        if (resource.type === 'shape') {341          appliedTransform = applyTransforms(resource.sharp, transform, colorTransform);342        } else if (resource.type === 'textField') {343          // appliedTransform = applyTransforms(resource.sharp, transform, colorTransform);344        } else if (resource.type === 'movieClip') {345          // todo remove once text fields are used346          if (resource.finalFrames.length > 0) {347            appliedTransform = applyTransforms(348              resource.finalFrames[i % resource.finalFrames.length],349              transform,350              colorTransform,351            );352          }353        }354        cache[cacheKey] = appliedTransform;355      }356      promises.push(appliedTransform);357    }358    const currentFrameComposite = await Promise.all(promises);359    if (exportId === 61) {360      currentFrameComposite.forEach(async (frame, j) => {361        if (frame) {362          sharp(frame.data, {363            raw: {364              channels: 4,365              width: frame.info.width,366              height: frame.info.height,367            },368          }).png().toFile(`out/sc/part-${exportId}-${i}-${j}.png`);369        }370      });371    }372    // movieClip.finalFrames[i] = currentFrameComposite[0];373    const imagesToComposite = currentFrameComposite.map((e, j) => ({374      part: e,375      t: getTransformMatrix(376        transformMatrices,377        currentFrame.frameResources[j].transformMatrixIndex,378      ),379    })).filter((e) => e.part); // todo remove filter once text fields are implemented380    // todo remove filter once text fields are implemented381    if (imagesToComposite.length > 0) {382      movieClip.finalFrames.push(await compositeFrame(imagesToComposite));383    }384  }385};386const saveAsWebp = (movieClip, exportName, fileName) => {387  const maxWidth = Math.max(...movieClip.finalFrames.map((f) => f.info.width));388  const pageHeight = Math.max(...movieClip.finalFrames.map((f) => f.info.height));389  const stripStream = new stream.Readable();390  const sharpStream = sharp({391    raw: {392      channels: 4,393      width: maxWidth,394      height: pageHeight * movieClip.actualFrameCount,395    },396    limitInputPixels: false,397  })398    .webp({ pageHeight, loop: 1, lossless: true })399    .on('data', (c) => {400      console.log('got image page');401    });402  stripStream.pipe(sharpStream);403  pushIntoStripStream(stripStream, movieClip.finalFrames, maxWidth, pageHeight);404  const exportNameString = exportName ? `${exportName.join('&')}-` : 'noexport-';405  return sharpStream406    .clone()407    .toFile(`out/${fileName}-movieclip-${exportNameString}${movieClip.exportId}-${movieClip.actualFrameCount}.webp`);408};409const createMovieClips = async (filename, transformMatrices, colorTransforms, resources, exports) => {410  logger.info('Extracting movie clips');411  const t = Date.now();412  // const resource = resources[4];413  // resources = {414  //   0: resources[0],415  //   1: resources[1],416  //   2: resources[2],417  //   4: resources[4],418  //   5: resources[5],419  //   6: resources[6],420  //   8: resources[8],421  // };422  // resources = {423  //   0: resources[0],424  //   2: resources[2],425  //   4: resources[4],426  //   9: resources[9],427  //   10: resources[10],428  //   12: resources[12],429  // };430  // resources = {431  //   2: resources[2],432  //   9: resources[9],433  //   10: resources[10],434  // };435  // resources = {436  //   0: resources[0],437  //   4: resources[4],438  // };439  const promises = [];440  // eslint-disable-next-line no-restricted-syntax441  for (const resource of Object.values(resources)) {442    if (resource.type === 'movieClip') {443      await createMovieClip(444        resource.exportId,445        resources,446        transformMatrices,447        colorTransforms,448      );449      // todo remove once text fields are used450      if (resource.finalFrames.length > 0) {451        promises.push(saveAsWebp(resource, exports[resource.exportId], filename));452      }453    }454  }455  console.log(`Movie clip frames generation time: ${Date.now() - t}ms`);456  const t2 = Date.now();457  await Promise.allSettled(promises);458  console.log(`Movie clip to webp time: ${Date.now() - t2}ms`);459  logger.info('Finished extracting movie clips');460};461module.exports = {462  readMovieClip,463  createMovieClips,...

1const createReadStream = require('fs').createReadStream;2const lengthsData = require('../fixtures/lengths-data.json');3const locationsData = require('../fixtures/locations-data.json');4const metadataDetectorStreams = require('../../src/module');5describe('metadata-detector-streams', function () {6    for (const [filename, locations] of locationsData) {7        describe('createLocateStream()', function () {8            const sanitizedFilename = filename.slice(-4) === '.txt' ? filename.slice(0, -4) : filename;9            it('should locate the metadata tags of the file', function (done) {10                const lctns = [];11                const locateStream = metadataDetectorStreams.createLocateStream();12                const readable = createReadStream('test/fixtures/' + sanitizedFilename, {13                    highWaterMark: 12814                });15                readable16                    .pipe(locateStream)17                    .on('error', function (err) {18                        done(err);19                    })20                    .on('finish', function () {21                        expect(lctns).to.deep.equal(locations);22                        done();23                    })24                    .on('location', function (location) {25                        lctns.push(location);26                    });27            });28        });29    }30    for (const [filename, byteLength] of lengthsData) {31        describe('createStripStream()', function () {32            const sanitizedFilename = filename.slice(-4) === '.txt' ? filename.slice(0, -4) : filename;33            it('should strip the metadata tags from the file', function (done) {34                let btLngth = 0;35                const readable = createReadStream('test/fixtures/' + sanitizedFilename, {36                    highWaterMark: 12837                });38                const stripStream = metadataDetectorStreams.createStripStream();39                readable40                    .pipe(stripStream)41                    .on('data', function (data) {42                        btLngth += data.length;43                    })44                    .on('error', function (err) {45                        done(err);46                    })47                    .on('finish', function () {48                        expect(btLngth).to.equal(byteLength);49                        done();50                    });51            });52        });53    }54    describe('locate()', function () {55        it('should be undefined', function () {56            expect(metadataDetectorStreams.locate).to.be.undefined;57        });58    });59    describe('strip()', function () {60        it('should be undefined', function () {61            expect(metadataDetectorStreams.strip).to.be.undefined;62        });63    });...

1"use strict";2var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {3    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }4    return new (P || (P = Promise))(function (resolve, reject) {5        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }6        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }7        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }8        step((generator = generator.apply(thisArg, _arguments || [])).next());9    });10};11var __importDefault = (this && this.__importDefault) || function (mod) {12    return (mod && mod.__esModule) ? mod : { "default": mod };13};14Object.defineProperty(exports, "__esModule", { value: true });15exports.stripStream = exports.strip = void 0;16const rewriter_1 = require("../../../../rewriter");17const duplexify_1 = __importDefault(require("duplexify"));18const network_1 = require("../../../../network");19const stream_1 = __importDefault(require("stream"));20const pumpify = require('pumpify');21const utf8Stream = require('utf8-stream');22const strip = (source, opts) => __awaiter(void 0, void 0, void 0, function* () {23    if (opts.isHtml) {24        return (0, rewriter_1.rewriteHtmlJsAsync)(opts.url, source, opts.deferSourceMapRewrite); // threaded25    }26    return (0, rewriter_1.rewriteJsAsync)(opts.url, source, opts.deferSourceMapRewrite); // threaded27});28exports.strip = strip;29const stripStream = (opts) => {30    if (opts.isHtml) {31        return pumpify(utf8Stream(), (0, rewriter_1.HtmlJsRewriter)(opts.url, opts.deferSourceMapRewrite));32    }33    const pt = new (stream_1.default.PassThrough)();34    return (0, duplexify_1.default)(pumpify(utf8Stream(), (0, network_1.concatStream)((body) => __awaiter(void 0, void 0, void 0, function* () {35        pt.write(yield (0, exports.strip)(body.toString(), opts));36        pt.end();37    }))), pt);38};...

...17        .replace(jiraTopWindowGetterRe, '$1 || $2.parent.__Cypress__$3')18        .replace(jiraTopWindowGetterUnMinifiedRe, '$1 || $2.parent.__Cypress__$3');19}20exports.strip = strip;21function stripStream() {22    return pumpify(utf8Stream(), replaceStream([23        topOrParentEqualityBeforeRe,24        topOrParentEqualityAfterRe,25        topOrParentLocationOrFramesRe,26        jiraTopWindowGetterRe,27        jiraTopWindowGetterUnMinifiedRe,28    ], [29        '$1self',30        'self$2',31        '$1self$3$4',32        '$1 || $2.parent.__Cypress__$3',33        '$1 || $2.parent.__Cypress__$3',34    ]));35}...

1(function() {2  var bodyRe, headRe, htmlRe, inject, rewriteHtml, security;3  inject = require("./inject");4  security = require("./security");5  headRe = /(<head.*?>)/i;6  bodyRe = /(<body.*?>)/i;7  htmlRe = /(<html.*?>)/i;8  rewriteHtml = function(html, domainName, wantsInjection, modifyObstructiveCode) {9    var htmlToInject, replace;10    replace = function(re, str) {11      return html.replace(re, str);12    };13    htmlToInject = (function(_this) {14      return function() {15        switch (wantsInjection) {16          case "full":17            return inject.full(domainName);18          case "partial":19            return inject.partial(domainName);20        }21      };22    })(this)();23    if (modifyObstructiveCode) {24      html = security.strip(html);25    }26    switch (false) {27      case !headRe.test(html):28        return replace(headRe, "$1 " + htmlToInject);29      case !bodyRe.test(html):30        return replace(bodyRe, "<head> " + htmlToInject + " </head> $1");31      case !htmlRe.test(html):32        return replace(htmlRe, "$1 <head> " + htmlToInject + " </head>");33      default:34        return ("<head> " + htmlToInject + " </head>") + html;35    }36  };37  module.exports = {38    html: rewriteHtml,39    security: security.stripStream40  };...

1(function() {2  var pumpify, replacestream, stream, strip, stripStream, topOrParentEqualityAfterRe, topOrParentEqualityBeforeRe, topOrParentLocationOrFramesRe;3  stream = require("stream");4  pumpify = require("pumpify");5  replacestream = require("replacestream");6  topOrParentEqualityBeforeRe = /((?:window|self)(?:\.|\[['"](?:top|self)['"]\])?\s*[!=][=]\s*(?:(?:window|self)(?:\.|\[['"]))?)(top|parent)/g;7  topOrParentEqualityAfterRe = /(top|parent)((?:["']\])?\s*[!=][=]=?\s*(?:window|self))/g;8  topOrParentLocationOrFramesRe = /([^\da-zA-Z])(top|parent)([.])(location|frames)/g;9  strip = function(html) {10    return html.replace(topOrParentEqualityBeforeRe, "$1self").replace(topOrParentEqualityAfterRe, "self$2").replace(topOrParentLocationOrFramesRe, "$1self$3$4");11  };12  stripStream = function() {13    return pumpify(replacestream(topOrParentEqualityBeforeRe, "$1self"), replacestream(topOrParentEqualityAfterRe, "self$2"), replacestream(topOrParentLocationOrFramesRe, "$1self$3$4"));14  };15  module.exports = {16    strip: strip,17    stripStream: stripStream18  };...