uni-stacktracey.cjs.js

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var fs = require('fs');
var path = require('path');
var os = require('os');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var fs__default = /*#__PURE__*/_interopDefaultLegacy(fs);
var path__default = /*#__PURE__*/_interopDefaultLegacy(path);
var os__default = /*#__PURE__*/_interopDefaultLegacy(os);

/*  ------------------------------------------------------------------------ */
const O = Object, isBrowser = 
/* eslint-disable */
typeof window !== 'undefined' &&
    /* eslint-disable */
    window.window === window &&
    /* eslint-disable */
    window.navigator, nodeRequire = isBrowser ? null : module.require, // to prevent bundlers from expanding the require call
lastOf = (x) => x[x.length - 1], nixSlashes$1 = (x) => x.replace(/\\/g, '/'), pathRoot = isBrowser ? window.location.href : nixSlashes$1(process.cwd()) + '/';
/*  ------------------------------------------------------------------------ */
class StackTracey {
    constructor(input, uniPlatform, offset) {
        this.itemsHeader = [];
        this.isMP = false;
        const originalInput = input, isParseableSyntaxError = input && input instanceof SyntaxError && !isBrowser;
        /*  new StackTracey ()            */
        if (!input) {
            input = new Error();
            offset = offset === undefined ? 1 : offset;
        }
        /*  new StackTracey (Error)      */
        if (input instanceof Error) {
            input = input.stack || '';
        }
        /*  new StackTracey (string)     */
        if (typeof input === 'string') {
            this.isMP = uniPlatform === 'mp-weixin';
            input = this.rawParse(input)
                .slice(offset)
                .map((x) => this.extractEntryMetadata(x));
        }
        /*  new StackTracey (array)      */
        if (Array.isArray(input)) {
            if (isParseableSyntaxError) {
                const rawLines = nodeRequire('util')
                    .inspect(originalInput)
                    .split('\n'), fileLine = rawLines[0].split(':'), line = fileLine.pop(), file = fileLine.join(':');
                if (file) {
                    input.unshift({
                        file: nixSlashes$1(file),
                        line: line,
                        column: (rawLines[2] || '').indexOf('^') + 1,
                        sourceLine: rawLines[1],
                        callee: '(syntax error)',
                        syntaxError: true,
                    });
                }
            }
            this.items = input;
        }
        else {
            this.items = [];
        }
    }
    extractEntryMetadata(e) {
        const decomposedPath = this.decomposePath(e.file || '');
        const fileRelative = decomposedPath[0];
        const externalDomain = decomposedPath[1];
        return O.assign(e, {
            calleeShort: e.calleeShort || lastOf((e.callee || '').split('.')),
            fileRelative: fileRelative,
            fileShort: this.shortenPath(fileRelative),
            fileName: lastOf((e.file || '').split('/')),
            thirdParty: this.isThirdParty(fileRelative, externalDomain) && !e.index,
            externalDomain: externalDomain,
        });
    }
    shortenPath(relativePath) {
        return relativePath
            .replace(/^node_modules\//, '')
            .replace(/^webpack\/bootstrap\//, '')
            .replace(/^__parcel_source_root\//, '');
    }
    decomposePath(fullPath) {
        let result = fullPath;
        if (isBrowser)
            result = result.replace(pathRoot, '');
        const externalDomainMatch = result.match(/^(http|https)\:\/\/?([^\/]+)\/{1,}(.*)/);
        const externalDomain = externalDomainMatch
            ? externalDomainMatch[2]
            : undefined;
        result = externalDomainMatch ? externalDomainMatch[3] : result;
        // if (!isBrowser) result = nodeRequire!('path').relative(pathRoot, result)
        return [
            nixSlashes$1(result).replace(/^.*\:\/\/?\/?/, ''),
            externalDomain,
        ];
    }
    isThirdParty(relativePath, externalDomain) {
        if (this.isMP) {
            if (typeof externalDomain === 'undefined')
                return false;
            return externalDomain !== 'usr';
        }
        return (
        // 由于 hello-uniapp web 端报错携带 hellouniapp.dcloud.net.cn
        // externalDomain ||
        relativePath[0] === '~' || // webpack-specific heuristic
            relativePath[0] === '/' || // external source
            relativePath.indexOf('@dcloudio') !== -1 ||
            relativePath.indexOf('weex-main-jsfm') !== -1 ||
            relativePath.indexOf('webpack/bootstrap') === 0);
    }
    rawParse(str) {
        const lines = (str || '').split('\n');
        const entries = lines.map((line, index) => {
            line = line.trim();
            let callee, fileLineColumn = [], native, planA, planB;
            if (line.indexOf('file:') !== -1) {
                line = line.replace(/file:\/\/(.*)www/, 'file://');
            }
            if ((planA = line.match(/at (.+) \(eval at .+ \((.+)\), .+\)/)) || // eval calls
                (planA = line.match(/at (.+) \((.+)\)/)) ||
                (line.slice(0, 3) !== 'at ' && (planA = line.match(/(.*)@(.*)/)))) {
                this.itemsHeader.push('%StacktraceyItem%');
                callee = planA[1];
                native = planA[2] === 'native';
                fileLineColumn = (planA[2].match(/(.*):(\d+):(\d+)/) ||
                    planA[2].match(/(.*):(\d+)/) ||
                    planA[2].match(/\[(.*)\]/) ||
                    []).slice(1);
            }
            else if ((planB = line.match(/^(at\s*)*(.*)\s+(.+):(\d+):(\d+)/))) {
                this.itemsHeader.push('%StacktraceyItem%');
                callee = planB[2].trim();
                fileLineColumn = planB.slice(3);
            }
            else {
                this.itemsHeader.push(line);
                return undefined;
            }
            /*  Detect things like Array.reduce
                TODO: detect more built-in types            */
            if (callee && !fileLineColumn[0]) {
                const type = callee.split('.')[0];
                if (type === 'Array') {
                    native = true;
                }
            }
            return {
                beforeParse: line,
                callee: callee || '',
                /* eslint-disable */
                index: isBrowser && fileLineColumn[0] === window.location.href,
                native: native || false,
                file: nixSlashes$1(fileLineColumn[0] || ''),
                line: parseInt(fileLineColumn[1] || '', 10) || undefined,
                column: parseInt(fileLineColumn[2] || '', 10) || undefined,
            };
        });
        return entries.filter((x) => x !== undefined);
    }
    maxColumnWidths() {
        return {
            callee: 30,
            file: 60,
            sourceLine: 80,
        };
    }
    asTable(opts) {
        const maxColumnWidths = (opts && opts.maxColumnWidths) || this.maxColumnWidths();
        const trimmed = this
            .filter((e) => !e.thirdParty)
            .map((e) => parseItem(e, maxColumnWidths, this.isMP));
        const trimmedThirdParty = this
            .filter((e) => e.thirdParty)
            .map((e) => parseItem(e, maxColumnWidths, this.isMP));
        return {
            items: trimmed.items,
            thirdPartyItems: trimmedThirdParty.items,
        };
    }
}
const trimEnd = (s, n) => s && (s.length > n ? s.slice(0, n - 1) + '…' : s);
const trimStart = (s, n) => s && (s.length > n ? '…' + s.slice(-(n - 1)) : s);
function parseItem(e, maxColumnWidths, isMP) {
    if (!e.parsed) {
        return e.beforeParse;
    }
    const filePath = (isMP ? e.file && e.file : e.fileShort && e.fileShort) +
        `${e.line ? ':' + e.line : ''}` +
        `${e.column ? ':' + e.column : ''}`;
    return [
        'at ' + trimEnd(isMP ? e.callee : e.calleeShort, maxColumnWidths.callee),
        trimStart(filePath || '', maxColumnWidths.file),
        trimEnd((e.sourceLine || '').trim() || '', maxColumnWidths.sourceLine),
    ];
}
['map', 'filter', 'slice', 'concat'].forEach((method) => {
    StackTracey.prototype[method] = function ( /*...args */) {
        // no support for ...args in Node v4 :(
        return new StackTracey(this.items[method].apply(this.items, arguments));
    };
});
/*  ------------------------------------------------------------------------ */
var StackTracey$1 = StackTracey;

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

const intToCharMap =
  'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
var encode$1 = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number]
  }
  throw new TypeError('Must be between 0 and 63: ' + number)
};

var base64$1 = {
	encode: encode$1
};

var base64 = base64$1;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Based on the Base 64 VLQ implementation in Closure Compiler:
 * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
 *
 * Copyright 2011 The Closure Compiler Authors. All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *  * Neither the name of Google Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */



// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
//   Continuation
//   |    Sign
//   |    |
//   V    V
//   101011

const VLQ_BASE_SHIFT = 5;

// binary: 100000
const VLQ_BASE = 1 << VLQ_BASE_SHIFT;

// binary: 011111
const VLQ_BASE_MASK = VLQ_BASE - 1;

// binary: 100000
const VLQ_CONTINUATION_BIT = VLQ_BASE;

/**
 * Converts from a two-complement value to a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
 *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
 */
function toVLQSigned(aValue) {
  return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0
}

/**
 * Returns the base 64 VLQ encoded value.
 */
var encode = function base64VLQ_encode(aValue) {
  let encoded = '';
  let digit;

  let vlq = toVLQSigned(aValue);

  do {
    digit = vlq & VLQ_BASE_MASK;
    vlq >>>= VLQ_BASE_SHIFT;
    if (vlq > 0) {
      // There are still more digits in this value, so we must make sure the
      // continuation bit is marked.
      digit |= VLQ_CONTINUATION_BIT;
    }
    encoded += base64.encode(digit);
  } while (vlq > 0)

  return encoded
};

var base64Vlq = {
	encode: encode
};

function createCommonjsModule(fn) {
  var module = { exports: {} };
	return fn(module, module.exports), module.exports;
}

/* -*- Mode: js; js-indent-level: 2; -*- */

var util$1 = createCommonjsModule(function (module, exports) {
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * This is a helper function for getting values from parameter/options
 * objects.
 *
 * @param args The object we are extracting values from
 * @param name The name of the property we are getting.
 * @param defaultValue An optional value to return if the property is missing
 * from the object. If this is not specified and the property is missing, an
 * error will be thrown.
 */
function getArg(aArgs, aName, aDefaultValue) {
  if (aName in aArgs) {
    return aArgs[aName]
  } else if (arguments.length === 3) {
    return aDefaultValue
  }
  throw new Error('"' + aName + '" is a required argument.')
}
exports.getArg = getArg;

const urlRegexp =
  /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
const dataUrlRegexp = /^data:.+\,.+$/;

function urlParse(aUrl) {
  const match = aUrl.match(urlRegexp);
  if (!match) {
    return null
  }
  return {
    scheme: match[1],
    auth: match[2],
    host: match[3],
    port: match[4],
    path: match[5],
  }
}
exports.urlParse = urlParse;

function urlGenerate(aParsedUrl) {
  let url = '';
  if (aParsedUrl.scheme) {
    url += aParsedUrl.scheme + ':';
  }
  url += '//';
  if (aParsedUrl.auth) {
    url += aParsedUrl.auth + '@';
  }
  if (aParsedUrl.host) {
    url += aParsedUrl.host;
  }
  if (aParsedUrl.port) {
    url += ':' + aParsedUrl.port;
  }
  if (aParsedUrl.path) {
    url += aParsedUrl.path;
  }
  return url
}
exports.urlGenerate = urlGenerate;

const MAX_CACHED_INPUTS = 32;

/**
 * Takes some function `f(input) -> result` and returns a memoized version of
 * `f`.
 *
 * We keep at most `MAX_CACHED_INPUTS` memoized results of `f` alive. The
 * memoization is a dumb-simple, linear least-recently-used cache.
 */
function lruMemoize(f) {
  const cache = [];

  return function (input) {
    for (let i = 0; i < cache.length; i++) {
      if (cache[i].input === input) {
        const temp = cache[0];
        cache[0] = cache[i];
        cache[i] = temp;
        return cache[0].result
      }
    }

    const result = f(input);

    cache.unshift({
      input,
      result,
    });

    if (cache.length > MAX_CACHED_INPUTS) {
      cache.pop();
    }

    return result
  }
}

/**
 * Normalizes a path, or the path portion of a URL:
 *
 * - Replaces consecutive slashes with one slash.
 * - Removes unnecessary '.' parts.
 * - Removes unnecessary '<dir>/..' parts.
 *
 * Based on code in the Node.js 'path' core module.
 *
 * @param aPath The path or url to normalize.
 */
const normalize = lruMemoize(function normalize(aPath) {
  let path = aPath;
  const url = urlParse(aPath);
  if (url) {
    if (!url.path) {
      return aPath
    }
    path = url.path;
  }
  const isAbsolute = exports.isAbsolute(path);

  // Split the path into parts between `/` characters. This is much faster than
  // using `.split(/\/+/g)`.
  const parts = [];
  let start = 0;
  let i = 0;
  while (true) {
    start = i;
    i = path.indexOf('/', start);
    if (i === -1) {
      parts.push(path.slice(start));
      break
    } else {
      parts.push(path.slice(start, i));
      while (i < path.length && path[i] === '/') {
        i++;
      }
    }
  }

  let up = 0;
  for (i = parts.length - 1; i >= 0; i--) {
    const part = parts[i];
    if (part === '.') {
      parts.splice(i, 1);
    } else if (part === '..') {
      up++;
    } else if (up > 0) {
      if (part === '') {
        // The first part is blank if the path is absolute. Trying to go
        // above the root is a no-op. Therefore we can remove all '..' parts
        // directly after the root.
        parts.splice(i + 1, up);
        up = 0;
      } else {
        parts.splice(i, 2);
        up--;
      }
    }
  }
  path = parts.join('/');

  if (path === '') {
    path = isAbsolute ? '/' : '.';
  }

  if (url) {
    url.path = path;
    return urlGenerate(url)
  }
  return path
});
exports.normalize = normalize;

/**
 * Joins two paths/URLs.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be joined with the root.
 *
 * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
 *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
 *   first.
 * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
 *   is updated with the result and aRoot is returned. Otherwise the result
 *   is returned.
 *   - If aPath is absolute, the result is aPath.
 *   - Otherwise the two paths are joined with a slash.
 * - Joining for example 'http://' and 'www.example.com' is also supported.
 */
function join(aRoot, aPath) {
  if (aRoot === '') {
    aRoot = '.';
  }
  if (aPath === '') {
    aPath = '.';
  }
  const aPathUrl = urlParse(aPath);
  const aRootUrl = urlParse(aRoot);
  if (aRootUrl) {
    aRoot = aRootUrl.path || '/';
  }

  // `join(foo, '//www.example.org')`
  if (aPathUrl && !aPathUrl.scheme) {
    if (aRootUrl) {
      aPathUrl.scheme = aRootUrl.scheme;
    }
    return urlGenerate(aPathUrl)
  }

  if (aPathUrl || aPath.match(dataUrlRegexp)) {
    return aPath
  }

  // `join('http://', 'www.example.com')`
  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
    aRootUrl.host = aPath;
    return urlGenerate(aRootUrl)
  }

  const joined =
    aPath.charAt(0) === '/'
      ? aPath
      : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

  if (aRootUrl) {
    aRootUrl.path = joined;
    return urlGenerate(aRootUrl)
  }
  return joined
}
exports.join = join;

exports.isAbsolute = function (aPath) {
  return aPath.charAt(0) === '/' || urlRegexp.test(aPath)
};

/**
 * Make a path relative to a URL or another path.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be made relative to aRoot.
 */
function relative(aRoot, aPath) {
  if (aRoot === '') {
    aRoot = '.';
  }

  aRoot = aRoot.replace(/\/$/, '');

  // It is possible for the path to be above the root. In this case, simply
  // checking whether the root is a prefix of the path won't work. Instead, we
  // need to remove components from the root one by one, until either we find
  // a prefix that fits, or we run out of components to remove.
  let level = 0;
  while (aPath.indexOf(aRoot + '/') !== 0) {
    const index = aRoot.lastIndexOf('/');
    if (index < 0) {
      return aPath
    }

    // If the only part of the root that is left is the scheme (i.e. http://,
    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
    // have exhausted all components, so the path is not relative to the root.
    aRoot = aRoot.slice(0, index);
    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
      return aPath
    }

    ++level;
  }

  // Make sure we add a "../" for each component we removed from the root.
  return Array(level + 1).join('../') + aPath.substr(aRoot.length + 1)
}
exports.relative = relative;

const supportsNullProto = (function () {
  const obj = Object.create(null);
  return !('__proto__' in obj)
})();

function identity(s) {
  return s
}

/**
 * Because behavior goes wacky when you set `__proto__` on objects, we
 * have to prefix all the strings in our set with an arbitrary character.
 *
 * See https://github.com/mozilla/source-map/pull/31 and
 * https://github.com/mozilla/source-map/issues/30
 *
 * @param String aStr
 */
function toSetString(aStr) {
  if (isProtoString(aStr)) {
    return '$' + aStr
  }

  return aStr
}
exports.toSetString = supportsNullProto ? identity : toSetString;

function fromSetString(aStr) {
  if (isProtoString(aStr)) {
    return aStr.slice(1)
  }

  return aStr
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;

function isProtoString(s) {
  if (!s) {
    return false
  }

  const length = s.length;

  if (length < 9 /* "__proto__".length */) {
    return false
  }

  /* eslint-disable no-multi-spaces */
  if (
    s.charCodeAt(length - 1) !== 95 /* '_' */ ||
    s.charCodeAt(length - 2) !== 95 /* '_' */ ||
    s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
    s.charCodeAt(length - 4) !== 116 /* 't' */ ||
    s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
    s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
    s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
    s.charCodeAt(length - 8) !== 95 /* '_' */ ||
    s.charCodeAt(length - 9) !== 95 /* '_' */
  ) {
    return false
  }
  /* eslint-enable no-multi-spaces */

  for (let i = length - 10; i >= 0; i--) {
    if (s.charCodeAt(i) !== 36 /* '$' */) {
      return false
    }
  }

  return true
}

/**
 * Comparator between two mappings where the original positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same original source/line/column, but different generated
 * line and column the same. Useful when searching for a mapping with a
 * stubbed out mapping.
 */
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
  let cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0 || onlyCompareOriginal) {
    return cmp
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp
  }

  return strcmp(mappingA.name, mappingB.name)
}
exports.compareByOriginalPositions = compareByOriginalPositions;

/**
 * Comparator between two mappings with deflated source and name indices where
 * the generated positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same generated line and column, but different
 * source/name/original line and column the same. Useful when searching for a
 * mapping with a stubbed out mapping.
 */
function compareByGeneratedPositionsDeflated(
  mappingA,
  mappingB,
  onlyCompareGenerated
) {
  let cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0 || onlyCompareGenerated) {
    return cmp
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp
  }

  return strcmp(mappingA.name, mappingB.name)
}
exports.compareByGeneratedPositionsDeflated =
  compareByGeneratedPositionsDeflated;

function strcmp(aStr1, aStr2) {
  if (aStr1 === aStr2) {
    return 0
  }

  if (aStr1 === null) {
    return 1 // aStr2 !== null
  }

  if (aStr2 === null) {
    return -1 // aStr1 !== null
  }

  if (aStr1 > aStr2) {
    return 1
  }

  return -1
}

/**
 * Comparator between two mappings with inflated source and name strings where
 * the generated positions are compared.
 */
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
  let cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp
  }

  return strcmp(mappingA.name, mappingB.name)
}
exports.compareByGeneratedPositionsInflated =
  compareByGeneratedPositionsInflated;

/**
 * Strip any JSON XSSI avoidance prefix from the string (as documented
 * in the source maps specification), and then parse the string as
 * JSON.
 */
function parseSourceMapInput(str) {
  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''))
}
exports.parseSourceMapInput = parseSourceMapInput;

/**
 * Compute the URL of a source given the the source root, the source's
 * URL, and the source map's URL.
 */
function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
  sourceURL = sourceURL || '';

  if (sourceRoot) {
    // This follows what Chrome does.
    if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
      sourceRoot += '/';
    }
    // The spec says:
    //   Line 4: An optional source root, useful for relocating source
    //   files on a server or removing repeated values in the
    //   “sources” entry.  This value is prepended to the individual
    //   entries in the “source” field.
    sourceURL = sourceRoot + sourceURL;
  }

  // Historically, SourceMapConsumer did not take the sourceMapURL as
  // a parameter.  This mode is still somewhat supported, which is why
  // this code block is conditional.  However, it's preferable to pass
  // the source map URL to SourceMapConsumer, so that this function
  // can implement the source URL resolution algorithm as outlined in
  // the spec.  This block is basically the equivalent of:
  //    new URL(sourceURL, sourceMapURL).toString()
  // ... except it avoids using URL, which wasn't available in the
  // older releases of node still supported by this library.
  //
  // The spec says:
  //   If the sources are not absolute URLs after prepending of the
  //   “sourceRoot”, the sources are resolved relative to the
  //   SourceMap (like resolving script src in a html document).
  if (sourceMapURL) {
    const parsed = urlParse(sourceMapURL);
    if (!parsed) {
      throw new Error('sourceMapURL could not be parsed')
    }
    if (parsed.path) {
      // Strip the last path component, but keep the "/".
      const index = parsed.path.lastIndexOf('/');
      if (index >= 0) {
        parsed.path = parsed.path.substring(0, index + 1);
      }
    }
    sourceURL = join(urlGenerate(parsed), sourceURL);
  }

  return normalize(sourceURL)
}
exports.computeSourceURL = computeSourceURL;
});

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * A data structure which is a combination of an array and a set. Adding a new
 * member is O(1), testing for membership is O(1), and finding the index of an
 * element is O(1). Removing elements from the set is not supported. Only
 * strings are supported for membership.
 */
class ArraySet$2 {
  constructor() {
    this._array = [];
    this._set = new Map();
  }

  /**
   * Static method for creating ArraySet instances from an existing array.
   */
  static fromArray(aArray, aAllowDuplicates) {
    const set = new ArraySet$2();
    for (let i = 0, len = aArray.length; i < len; i++) {
      set.add(aArray[i], aAllowDuplicates);
    }
    return set
  }

  /**
   * Return how many unique items are in this ArraySet. If duplicates have been
   * added, than those do not count towards the size.
   *
   * @returns Number
   */
  size() {
    return this._set.size
  }

  /**
   * Add the given string to this set.
   *
   * @param String aStr
   */
  add(aStr, aAllowDuplicates) {
    const isDuplicate = this.has(aStr);
    const idx = this._array.length;
    if (!isDuplicate || aAllowDuplicates) {
      this._array.push(aStr);
    }
    if (!isDuplicate) {
      this._set.set(aStr, idx);
    }
  }

  /**
   * Is the given string a member of this set?
   *
   * @param String aStr
   */
  has(aStr) {
    return this._set.has(aStr)
  }

  /**
   * What is the index of the given string in the array?
   *
   * @param String aStr
   */
  indexOf(aStr) {
    const idx = this._set.get(aStr);
    if (idx >= 0) {
      return idx
    }
    throw new Error('"' + aStr + '" is not in the set.')
  }

  /**
   * What is the element at the given index?
   *
   * @param Number aIdx
   */
  at(aIdx) {
    if (aIdx >= 0 && aIdx < this._array.length) {
      return this._array[aIdx]
    }
    throw new Error('No element indexed by ' + aIdx)
  }

  /**
   * Returns the array representation of this set (which has the proper indices
   * indicated by indexOf). Note that this is a copy of the internal array used
   * for storing the members so that no one can mess with internal state.
   */
  toArray() {
    return this._array.slice()
  }
}
var ArraySet_1 = ArraySet$2;

var arraySet = {
	ArraySet: ArraySet_1
};

var util = util$1;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2014 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */



/**
 * Determine whether mappingB is after mappingA with respect to generated
 * position.
 */
function generatedPositionAfter(mappingA, mappingB) {
  // Optimized for most common case
  const lineA = mappingA.generatedLine;
  const lineB = mappingB.generatedLine;
  const columnA = mappingA.generatedColumn;
  const columnB = mappingB.generatedColumn;
  return (
    lineB > lineA ||
    (lineB == lineA && columnB >= columnA) ||
    util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0
  )
}

/**
 * A data structure to provide a sorted view of accumulated mappings in a
 * performance conscious manner. It trades a negligible overhead in general
 * case for a large speedup in case of mappings being added in order.
 */
class MappingList$1 {
  constructor() {
    this._array = [];
    this._sorted = true;
    // Serves as infimum
    this._last = { generatedLine: -1, generatedColumn: 0 };
  }

  /**
   * Iterate through internal items. This method takes the same arguments that
   * `Array.prototype.forEach` takes.
   *
   * NOTE: The order of the mappings is NOT guaranteed.
   */
  unsortedForEach(aCallback, aThisArg) {
    this._array.forEach(aCallback, aThisArg);
  }

  /**
   * Add the given source mapping.
   *
   * @param Object aMapping
   */
  add(aMapping) {
    if (generatedPositionAfter(this._last, aMapping)) {
      this._last = aMapping;
      this._array.push(aMapping);
    } else {
      this._sorted = false;
      this._array.push(aMapping);
    }
  }

  /**
   * Returns the flat, sorted array of mappings. The mappings are sorted by
   * generated position.
   *
   * WARNING: This method returns internal data without copying, for
   * performance. The return value must NOT be mutated, and should be treated as
   * an immutable borrow. If you want to take ownership, you must make your own
   * copy.
   */
  toArray() {
    if (!this._sorted) {
      this._array.sort(util.compareByGeneratedPositionsInflated);
      this._sorted = true;
    }
    return this._array
  }
}

var MappingList_1 = MappingList$1;

var mappingList = {
	MappingList: MappingList_1
};

var base64VLQ = base64Vlq;

var require$$0$1 = arraySet;

var require$$1$1 = mappingList;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */



const ArraySet$1 = require$$0$1.ArraySet;
const MappingList = require$$1$1.MappingList;

/**
 * An instance of the SourceMapGenerator represents a source map which is
 * being built incrementally. You may pass an object with the following
 * properties:
 *
 *   - file: The filename of the generated source.
 *   - sourceRoot: A root for all relative URLs in this source map.
 */
class SourceMapGenerator$1 {
  constructor(aArgs) {
    if (!aArgs) {
      aArgs = {};
    }
    this._file = util.getArg(aArgs, 'file', null);
    this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
    this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
    this._sources = new ArraySet$1();
    this._names = new ArraySet$1();
    this._mappings = new MappingList();
    this._sourcesContents = null;
  }

  /**
   * Creates a new SourceMapGenerator based on a SourceMapConsumer
   *
   * @param aSourceMapConsumer The SourceMap.
   */
  static fromSourceMap(aSourceMapConsumer) {
    const sourceRoot = aSourceMapConsumer.sourceRoot;
    const generator = new SourceMapGenerator$1({
      file: aSourceMapConsumer.file,
      sourceRoot,
    });
    aSourceMapConsumer.eachMapping(function (mapping) {
      const newMapping = {
        generated: {
          line: mapping.generatedLine,
          column: mapping.generatedColumn,
        },
      };

      if (mapping.source != null) {
        newMapping.source = mapping.source;
        if (sourceRoot != null) {
          newMapping.source = util.relative(sourceRoot, newMapping.source);
        }

        newMapping.original = {
          line: mapping.originalLine,
          column: mapping.originalColumn,
        };

        if (mapping.name != null) {
          newMapping.name = mapping.name;
        }
      }

      generator.addMapping(newMapping);
    });
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      let sourceRelative = sourceFile;
      if (sourceRoot !== null) {
        sourceRelative = util.relative(sourceRoot, sourceFile);
      }

      if (!generator._sources.has(sourceRelative)) {
        generator._sources.add(sourceRelative);
      }

      const content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        generator.setSourceContent(sourceFile, content);
      }
    });
    return generator
  }

  /**
   * Add a single mapping from original source line and column to the generated
   * source's line and column for this source map being created. The mapping
   * object should have the following properties:
   *
   *   - generated: An object with the generated line and column positions.
   *   - original: An object with the original line and column positions.
   *   - source: The original source file (relative to the sourceRoot).
   *   - name: An optional original token name for this mapping.
   */
  addMapping(aArgs) {
    const generated = util.getArg(aArgs, 'generated');
    const original = util.getArg(aArgs, 'original', null);
    let source = util.getArg(aArgs, 'source', null);
    let name = util.getArg(aArgs, 'name', null);

    if (!this._skipValidation) {
      this._validateMapping(generated, original, source, name);
    }

    if (source != null) {
      source = String(source);
      if (!this._sources.has(source)) {
        this._sources.add(source);
      }
    }

    if (name != null) {
      name = String(name);
      if (!this._names.has(name)) {
        this._names.add(name);
      }
    }

    this._mappings.add({
      generatedLine: generated.line,
      generatedColumn: generated.column,
      originalLine: original != null && original.line,
      originalColumn: original != null && original.column,
      source,
      name,
    });
  }

  /**
   * Set the source content for a source file.
   */
  setSourceContent(aSourceFile, aSourceContent) {
    let source = aSourceFile;
    if (this._sourceRoot != null) {
      source = util.relative(this._sourceRoot, source);
    }

    if (aSourceContent != null) {
      // Add the source content to the _sourcesContents map.
      // Create a new _sourcesContents map if the property is null.
      if (!this._sourcesContents) {
        this._sourcesContents = Object.create(null);
      }
      this._sourcesContents[util.toSetString(source)] = aSourceContent;
    } else if (this._sourcesContents) {
      // Remove the source file from the _sourcesContents map.
      // If the _sourcesContents map is empty, set the property to null.
      delete this._sourcesContents[util.toSetString(source)];
      if (Object.keys(this._sourcesContents).length === 0) {
        this._sourcesContents = null;
      }
    }
  }

  /**
   * Applies the mappings of a sub-source-map for a specific source file to the
   * source map being generated. Each mapping to the supplied source file is
   * rewritten using the supplied source map. Note: The resolution for the
   * resulting mappings is the minimium of this map and the supplied map.
   *
   * @param aSourceMapConsumer The source map to be applied.
   * @param aSourceFile Optional. The filename of the source file.
   *        If omitted, SourceMapConsumer's file property will be used.
   * @param aSourceMapPath Optional. The dirname of the path to the source map
   *        to be applied. If relative, it is relative to the SourceMapConsumer.
   *        This parameter is needed when the two source maps aren't in the same
   *        directory, and the source map to be applied contains relative source
   *        paths. If so, those relative source paths need to be rewritten
   *        relative to the SourceMapGenerator.
   */
  applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
    let sourceFile = aSourceFile;
    // If aSourceFile is omitted, we will use the file property of the SourceMap
    if (aSourceFile == null) {
      if (aSourceMapConsumer.file == null) {
        throw new Error(
          'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
            'or the source map\'s "file" property. Both were omitted.'
        )
      }
      sourceFile = aSourceMapConsumer.file;
    }
    const sourceRoot = this._sourceRoot;
    // Make "sourceFile" relative if an absolute Url is passed.
    if (sourceRoot != null) {
      sourceFile = util.relative(sourceRoot, sourceFile);
    }
    // Applying the SourceMap can add and remove items from the sources and
    // the names array.
    const newSources =
      this._mappings.toArray().length > 0 ? new ArraySet$1() : this._sources;
    const newNames = new ArraySet$1();

    // Find mappings for the "sourceFile"
    this._mappings.unsortedForEach(function (mapping) {
      if (mapping.source === sourceFile && mapping.originalLine != null) {
        // Check if it can be mapped by the source map, then update the mapping.
        const original = aSourceMapConsumer.originalPositionFor({
          line: mapping.originalLine,
          column: mapping.originalColumn,
        });
        if (original.source != null) {
          // Copy mapping
          mapping.source = original.source;
          if (aSourceMapPath != null) {
            mapping.source = util.join(aSourceMapPath, mapping.source);
          }
          if (sourceRoot != null) {
            mapping.source = util.relative(sourceRoot, mapping.source);
          }
          mapping.originalLine = original.line;
          mapping.originalColumn = original.column;
          if (original.name != null) {
            mapping.name = original.name;
          }
        }
      }

      const source = mapping.source;
      if (source != null && !newSources.has(source)) {
        newSources.add(source);
      }

      const name = mapping.name;
      if (name != null && !newNames.has(name)) {
        newNames.add(name);
      }
    }, this);
    this._sources = newSources;
    this._names = newNames;

    // Copy sourcesContents of applied map.
    aSourceMapConsumer.sources.forEach(function (srcFile) {
      const content = aSourceMapConsumer.sourceContentFor(srcFile);
      if (content != null) {
        if (aSourceMapPath != null) {
          srcFile = util.join(aSourceMapPath, srcFile);
        }
        if (sourceRoot != null) {
          srcFile = util.relative(sourceRoot, srcFile);
        }
        this.setSourceContent(srcFile, content);
      }
    }, this);
  }

  /**
   * A mapping can have one of the three levels of data:
   *
   *   1. Just the generated position.
   *   2. The Generated position, original position, and original source.
   *   3. Generated and original position, original source, as well as a name
   *      token.
   *
   * To maintain consistency, we validate that any new mapping being added falls
   * in to one of these categories.
   */
  _validateMapping(aGenerated, aOriginal, aSource, aName) {
    // When aOriginal is truthy but has empty values for .line and .column,
    // it is most likely a programmer error. In this case we throw a very
    // specific error message to try to guide them the right way.
    // For example: https://github.com/Polymer/polymer-bundler/pull/519
    if (
      aOriginal &&
      typeof aOriginal.line !== 'number' &&
      typeof aOriginal.column !== 'number'
    ) {
      throw new Error(
        'original.line and original.column are not numbers -- you probably meant to omit ' +
          'the original mapping entirely and only map the generated position. If so, pass ' +
          'null for the original mapping instead of an object with empty or null values.'
      )
    }

    if (
      aGenerated &&
      'line' in aGenerated &&
      'column' in aGenerated &&
      aGenerated.line > 0 &&
      aGenerated.column >= 0 &&
      !aOriginal &&
      !aSource &&
      !aName
    ) ; else if (
      aGenerated &&
      'line' in aGenerated &&
      'column' in aGenerated &&
      aOriginal &&
      'line' in aOriginal &&
      'column' in aOriginal &&
      aGenerated.line > 0 &&
      aGenerated.column >= 0 &&
      aOriginal.line > 0 &&
      aOriginal.column >= 0 &&
      aSource
    ) ; else {
      throw new Error(
        'Invalid mapping: ' +
          JSON.stringify({
            generated: aGenerated,
            source: aSource,
            original: aOriginal,
            name: aName,
          })
      )
    }
  }

  /**
   * Serialize the accumulated mappings in to the stream of base 64 VLQs
   * specified by the source map format.
   */
  _serializeMappings() {
    let previousGeneratedColumn = 0;
    let previousGeneratedLine = 1;
    let previousOriginalColumn = 0;
    let previousOriginalLine = 0;
    let previousName = 0;
    let previousSource = 0;
    let result = '';
    let next;
    let mapping;
    let nameIdx;
    let sourceIdx;

    const mappings = this._mappings.toArray();
    for (let i = 0, len = mappings.length; i < len; i++) {
      mapping = mappings[i];
      next = '';

      if (mapping.generatedLine !== previousGeneratedLine) {
        previousGeneratedColumn = 0;
        while (mapping.generatedLine !== previousGeneratedLine) {
          next += ';';
          previousGeneratedLine++;
        }
      } else if (i > 0) {
        if (
          !util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])
        ) {
          continue
        }
        next += ',';
      }

      next += base64VLQ.encode(
        mapping.generatedColumn - previousGeneratedColumn
      );
      previousGeneratedColumn = mapping.generatedColumn;

      if (mapping.source != null) {
        sourceIdx = this._sources.indexOf(mapping.source);
        next += base64VLQ.encode(sourceIdx - previousSource);
        previousSource = sourceIdx;

        // lines are stored 0-based in SourceMap spec version 3
        next += base64VLQ.encode(
          mapping.originalLine - 1 - previousOriginalLine
        );
        previousOriginalLine = mapping.originalLine - 1;

        next += base64VLQ.encode(
          mapping.originalColumn - previousOriginalColumn
        );
        previousOriginalColumn = mapping.originalColumn;

        if (mapping.name != null) {
          nameIdx = this._names.indexOf(mapping.name);
          next += base64VLQ.encode(nameIdx - previousName);
          previousName = nameIdx;
        }
      }

      result += next;
    }

    return result
  }

  _generateSourcesContent(aSources, aSourceRoot) {
    return aSources.map(function (source) {
      if (!this._sourcesContents) {
        return null
      }
      if (aSourceRoot != null) {
        source = util.relative(aSourceRoot, source);
      }
      const key = util.toSetString(source);
      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
        ? this._sourcesContents[key]
        : null
    }, this)
  }

  /**
   * Externalize the source map.
   */
  toJSON() {
    const map = {
      version: this._version,
      sources: this._sources.toArray(),
      names: this._names.toArray(),
      mappings: this._serializeMappings(),
    };
    if (this._file != null) {
      map.file = this._file;
    }
    if (this._sourceRoot != null) {
      map.sourceRoot = this._sourceRoot;
    }
    if (this._sourcesContents) {
      map.sourcesContent = this._generateSourcesContent(
        map.sources,
        map.sourceRoot
      );
    }

    return map
  }

  /**
   * Render the source map being generated to a string.
   */
  toString() {
    return JSON.stringify(this.toJSON())
  }
}

SourceMapGenerator$1.prototype._version = 3;
var SourceMapGenerator_1 = SourceMapGenerator$1;

var sourceMapGenerator = {
	SourceMapGenerator: SourceMapGenerator_1
};

/* -*- Mode: js; js-indent-level: 2; -*- */

var binarySearch$1 = createCommonjsModule(function (module, exports) {
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

exports.GREATEST_LOWER_BOUND = 1;
exports.LEAST_UPPER_BOUND = 2;

/**
 * Recursive implementation of binary search.
 *
 * @param aLow Indices here and lower do not contain the needle.
 * @param aHigh Indices here and higher do not contain the needle.
 * @param aNeedle The element being searched for.
 * @param aHaystack The non-empty array being searched.
 * @param aCompare Function which takes two elements and returns -1, 0, or 1.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 */
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
  // This function terminates when one of the following is true:
  //
  //   1. We find the exact element we are looking for.
  //
  //   2. We did not find the exact element, but we can return the index of
  //      the next-closest element.
  //
  //   3. We did not find the exact element, and there is no next-closest
  //      element than the one we are searching for, so we return -1.
  const mid = Math.floor((aHigh - aLow) / 2) + aLow;
  const cmp = aCompare(aNeedle, aHaystack[mid], true);
  if (cmp === 0) {
    // Found the element we are looking for.
    return mid
  } else if (cmp > 0) {
    // Our needle is greater than aHaystack[mid].
    if (aHigh - mid > 1) {
      // The element is in the upper half.
      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias)
    }

    // The exact needle element was not found in this haystack. Determine if
    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return aHigh < aHaystack.length ? aHigh : -1
    }
    return mid
  }

  // Our needle is less than aHaystack[mid].
  if (mid - aLow > 1) {
    // The element is in the lower half.
    return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias)
  }

  // we are in termination case (3) or (2) and return the appropriate thing.
  if (aBias == exports.LEAST_UPPER_BOUND) {
    return mid
  }
  return aLow < 0 ? -1 : aLow
}

/**
 * This is an implementation of binary search which will always try and return
 * the index of the closest element if there is no exact hit. This is because
 * mappings between original and generated line/col pairs are single points,
 * and there is an implicit region between each of them, so a miss just means
 * that you aren't on the very start of a region.
 *
 * @param aNeedle The element you are looking for.
 * @param aHaystack The array that is being searched.
 * @param aCompare A function which takes the needle and an element in the
 *     array and returns -1, 0, or 1 depending on whether the needle is less
 *     than, equal to, or greater than the element, respectively.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
 */
exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
  if (aHaystack.length === 0) {
    return -1
  }

  let index = recursiveSearch(
    -1,
    aHaystack.length,
    aNeedle,
    aHaystack,
    aCompare,
    aBias || exports.GREATEST_LOWER_BOUND
  );
  if (index < 0) {
    return -1
  }

  // We have found either the exact element, or the next-closest element than
  // the one we are searching for. However, there may be more than one such
  // element. Make sure we always return the smallest of these.
  while (index - 1 >= 0) {
    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
      break
    }
    --index;
  }

  return index
};
});

/* Determine browser vs node environment by testing the default top level context. Solution courtesy of: https://stackoverflow.com/questions/17575790/environment-detection-node-js-or-browser */

var readWasm$1 = createCommonjsModule(function (module) {
{
  // Node version of reading a wasm file into an array buffer.
  const fs = fs__default["default"];
  const path = path__default["default"];

  module.exports = function readWasm() {
    return new Promise((resolve, reject) => {
      const wasmPath = path.join(
        __dirname,
        '../lib/source-map/lib',
        'mappings.wasm'
      );
      fs.readFile(wasmPath, null, (error, data) => {
        if (error) {
          reject(error);
          return
        }

        resolve(data.buffer);
      });
    })
  };

  module.exports.initialize = (_) => {
    console.debug(
      'SourceMapConsumer.initialize is a no-op when running in node.js'
    );
  };
}
});

var readWasm = readWasm$1;

/**
 * Provide the JIT with a nice shape / hidden class.
 */
function Mapping() {
  this.generatedLine = 0;
  this.generatedColumn = 0;
  this.lastGeneratedColumn = null;
  this.source = null;
  this.originalLine = null;
  this.originalColumn = null;
  this.name = null;
}

let cachedWasm = null;

var wasm$1 = function wasm() {
  if (cachedWasm) {
    return cachedWasm
  }

  const callbackStack = [];

  cachedWasm = readWasm()
    .then((buffer) => {
      return WebAssembly.instantiate(buffer, {
        env: {
          mapping_callback(
            generatedLine,
            generatedColumn,

            hasLastGeneratedColumn,
            lastGeneratedColumn,

            hasOriginal,
            source,
            originalLine,
            originalColumn,

            hasName,
            name
          ) {
            const mapping = new Mapping();
            // JS uses 1-based line numbers, wasm uses 0-based.
            mapping.generatedLine = generatedLine + 1;
            mapping.generatedColumn = generatedColumn;

            if (hasLastGeneratedColumn) {
              // JS uses inclusive last generated column, wasm uses exclusive.
              mapping.lastGeneratedColumn = lastGeneratedColumn - 1;
            }

            if (hasOriginal) {
              mapping.source = source;
              // JS uses 1-based line numbers, wasm uses 0-based.
              mapping.originalLine = originalLine + 1;
              mapping.originalColumn = originalColumn;

              if (hasName) {
                mapping.name = name;
              }
            }

            callbackStack[callbackStack.length - 1](mapping);
          },

          start_all_generated_locations_for() {
            console.time('all_generated_locations_for');
          },
          end_all_generated_locations_for() {
            console.timeEnd('all_generated_locations_for');
          },

          start_compute_column_spans() {
            console.time('compute_column_spans');
          },
          end_compute_column_spans() {
            console.timeEnd('compute_column_spans');
          },

          start_generated_location_for() {
            console.time('generated_location_for');
          },
          end_generated_location_for() {
            console.timeEnd('generated_location_for');
          },

          start_original_location_for() {
            console.time('original_location_for');
          },
          end_original_location_for() {
            console.timeEnd('original_location_for');
          },

          start_parse_mappings() {
            console.time('parse_mappings');
          },
          end_parse_mappings() {
            console.timeEnd('parse_mappings');
          },

          start_sort_by_generated_location() {
            console.time('sort_by_generated_location');
          },
          end_sort_by_generated_location() {
            console.timeEnd('sort_by_generated_location');
          },

          start_sort_by_original_location() {
            console.time('sort_by_original_location');
          },
          end_sort_by_original_location() {
            console.timeEnd('sort_by_original_location');
          },
        },
      })
    })
    .then((Wasm) => {
      return {
        exports: Wasm.instance.exports,
        withMappingCallback: (mappingCallback, f) => {
          callbackStack.push(mappingCallback);
          try {
            f();
          } finally {
            callbackStack.pop();
          }
        },
      }
    })
    .then(null, (e) => {
      cachedWasm = null;
      throw e
    });

  return cachedWasm
};

var binarySearch = binarySearch$1;

var wasm = wasm$1;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */



const ArraySet = require$$0$1.ArraySet;
 // eslint-disable-line no-unused-vars



const INTERNAL = Symbol('smcInternal');

class SourceMapConsumer$1 {
  constructor(aSourceMap, aSourceMapURL) {
    // If the constructor was called by super(), just return Promise<this>.
    // Yes, this is a hack to retain the pre-existing API of the base-class
    // constructor also being an async factory function.
    if (aSourceMap == INTERNAL) {
      return Promise.resolve(this)
    }

    return _factory(aSourceMap, aSourceMapURL)
  }

  static initialize(opts) {
    readWasm.initialize(opts['lib/mappings.wasm']);
  }

  static fromSourceMap(aSourceMap, aSourceMapURL) {
    return _factoryBSM(aSourceMap, aSourceMapURL)
  }

  /**
   * Construct a new `SourceMapConsumer` from `rawSourceMap` and `sourceMapUrl`
   * (see the `SourceMapConsumer` constructor for details. Then, invoke the `async
   * function f(SourceMapConsumer) -> T` with the newly constructed consumer, wait
   * for `f` to complete, call `destroy` on the consumer, and return `f`'s return
   * value.
   *
   * You must not use the consumer after `f` completes!
   *
   * By using `with`, you do not have to remember to manually call `destroy` on
   * the consumer, since it will be called automatically once `f` completes.
   *
   * ```js
   * const xSquared = await SourceMapConsumer.with(
   *   myRawSourceMap,
   *   null,
   *   async function (consumer) {
   *     // Use `consumer` inside here and don't worry about remembering
   *     // to call `destroy`.
   *
   *     const x = await whatever(consumer);
   *     return x * x;
   *   }
   * );
   *
   * // You may not use that `consumer` anymore out here; it has
   * // been destroyed. But you can use `xSquared`.
   * console.log(xSquared);
   * ```
   */
  static async with(rawSourceMap, sourceMapUrl, f) {
    const consumer = await new SourceMapConsumer$1(rawSourceMap, sourceMapUrl);
    try {
      return await f(consumer)
    } finally {
      consumer.destroy();
    }
  }

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  _parseMappings(aStr, aSourceRoot) {
    throw new Error('Subclasses must implement _parseMappings')
  }

  /**
   * Iterate over each mapping between an original source/line/column and a
   * generated line/column in this source map.
   *
   * @param Function aCallback
   *        The function that is called with each mapping.
   * @param Object aContext
   *        Optional. If specified, this object will be the value of `this` every
   *        time that `aCallback` is called.
   * @param aOrder
   *        Either `SourceMapConsumer.GENERATED_ORDER` or
   *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
   *        iterate over the mappings sorted by the generated file's line/column
   *        order or the original's source/line/column order, respectively. Defaults to
   *        `SourceMapConsumer.GENERATED_ORDER`.
   */
  eachMapping(aCallback, aContext, aOrder) {
    throw new Error('Subclasses must implement eachMapping')
  }

  /**
   * Returns all generated line and column information for the original source,
   * line, and column provided. If no column is provided, returns all mappings
   * corresponding to a either the line we are searching for or the next
   * closest line that has any mappings. Otherwise, returns all mappings
   * corresponding to the given line and either the column we are searching for
   * or the next closest column that has any offsets.
   *
   * The only argument is an object with the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.  The line number is 1-based.
   *   - column: Optional. the column number in the original source.
   *    The column number is 0-based.
   *
   * and an array of objects is returned, each with the following properties:
   *
   *   - line: The line number in the generated source, or null.  The
   *    line number is 1-based.
   *   - column: The column number in the generated source, or null.
   *    The column number is 0-based.
   */
  allGeneratedPositionsFor(aArgs) {
    throw new Error('Subclasses must implement allGeneratedPositionsFor')
  }

  destroy() {
    throw new Error('Subclasses must implement destroy')
  }
}

/**
 * The version of the source mapping spec that we are consuming.
 */
SourceMapConsumer$1.prototype._version = 3;
SourceMapConsumer$1.GENERATED_ORDER = 1;
SourceMapConsumer$1.ORIGINAL_ORDER = 2;

SourceMapConsumer$1.GREATEST_LOWER_BOUND = 1;
SourceMapConsumer$1.LEAST_UPPER_BOUND = 2;

var SourceMapConsumer_1 = SourceMapConsumer$1;

/**
 * A BasicSourceMapConsumer instance represents a parsed source map which we can
 * query for information about the original file positions by giving it a file
 * position in the generated source.
 *
 * The first parameter is the raw source map (either as a JSON string, or
 * already parsed to an object). According to the spec, source maps have the
 * following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - sources: An array of URLs to the original source files.
 *   - names: An array of identifiers which can be referenced by individual mappings.
 *   - sourceRoot: Optional. The URL root from which all sources are relative.
 *   - sourcesContent: Optional. An array of contents of the original source files.
 *   - mappings: A string of base64 VLQs which contain the actual mappings.
 *   - file: Optional. The generated file this source map is associated with.
 *
 * Here is an example source map, taken from the source map spec[0]:
 *
 *     {
 *       version : 3,
 *       file: "out.js",
 *       sourceRoot : "",
 *       sources: ["foo.js", "bar.js"],
 *       names: ["src", "maps", "are", "fun"],
 *       mappings: "AA,AB;;ABCDE;"
 *     }
 *
 * The second parameter, if given, is a string whose value is the URL
 * at which the source map was found.  This URL is used to compute the
 * sources array.
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
 */
class BasicSourceMapConsumer extends SourceMapConsumer$1 {
  constructor(aSourceMap, aSourceMapURL) {
    return super(INTERNAL).then((that) => {
      let sourceMap = aSourceMap;
      if (typeof aSourceMap === 'string') {
        sourceMap = util.parseSourceMapInput(aSourceMap);
      }

      const version = util.getArg(sourceMap, 'version');
      let sources = util.getArg(sourceMap, 'sources');
      // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
      // requires the array) to play nice here.
      const names = util.getArg(sourceMap, 'names', []);
      let sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
      const sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
      const mappings = util.getArg(sourceMap, 'mappings');
      const file = util.getArg(sourceMap, 'file', null);

      // Once again, Sass deviates from the spec and supplies the version as a
      // string rather than a number, so we use loose equality checking here.
      if (version != that._version) {
        throw new Error('Unsupported version: ' + version)
      }

      if (sourceRoot) {
        sourceRoot = util.normalize(sourceRoot);
      }

      sources = sources
        .map(String)
        // Some source maps produce relative source paths like "./foo.js" instead of
        // "foo.js".  Normalize these first so that future comparisons will succeed.
        // See bugzil.la/1090768.
        .map(util.normalize)
        // Always ensure that absolute sources are internally stored relative to
        // the source root, if the source root is absolute. Not doing this would
        // be particularly problematic when the source root is a prefix of the
        // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
        .map(function (source) {
          return sourceRoot &&
            util.isAbsolute(sourceRoot) &&
            util.isAbsolute(source)
            ? util.relative(sourceRoot, source)
            : source
        });

      // Pass `true` below to allow duplicate names and sources. While source maps
      // are intended to be compressed and deduplicated, the TypeScript compiler
      // sometimes generates source maps with duplicates in them. See Github issue
      // #72 and bugzil.la/889492.
      that._names = ArraySet.fromArray(names.map(String), true);
      that._sources = ArraySet.fromArray(sources, true);

      that._absoluteSources = that._sources.toArray().map(function (s) {
        return util.computeSourceURL(sourceRoot, s, aSourceMapURL)
      });

      that.sourceRoot = sourceRoot;
      that.sourcesContent = sourcesContent;
      that._mappings = mappings;
      that._sourceMapURL = aSourceMapURL;
      that.file = file;

      that._computedColumnSpans = false;
      that._mappingsPtr = 0;
      that._wasm = null;

      return wasm().then((w) => {
        that._wasm = w;
        return that
      })
    })
  }

  /**
   * Utility function to find the index of a source.  Returns -1 if not
   * found.
   */
  _findSourceIndex(aSource) {
    let relativeSource = aSource;
    if (this.sourceRoot != null) {
      relativeSource = util.relative(this.sourceRoot, relativeSource);
    }

    if (this._sources.has(relativeSource)) {
      return this._sources.indexOf(relativeSource)
    }

    // Maybe aSource is an absolute URL as returned by |sources|.  In
    // this case we can't simply undo the transform.
    for (let i = 0; i < this._absoluteSources.length; ++i) {
      if (this._absoluteSources[i] == aSource) {
        return i
      }
    }

    return -1
  }

  /**
   * Create a BasicSourceMapConsumer from a SourceMapGenerator.
   *
   * @param SourceMapGenerator aSourceMap
   *        The source map that will be consumed.
   * @param String aSourceMapURL
   *        The URL at which the source map can be found (optional)
   * @returns BasicSourceMapConsumer
   */
  static fromSourceMap(aSourceMap, aSourceMapURL) {
    return new BasicSourceMapConsumer(aSourceMap.toString())
  }

  get sources() {
    return this._absoluteSources.slice()
  }

  _getMappingsPtr() {
    if (this._mappingsPtr === 0) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this._mappingsPtr
  }

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  _parseMappings(aStr, aSourceRoot) {
    const size = aStr.length;

    const mappingsBufPtr = this._wasm.exports.allocate_mappings(size);
    const mappingsBuf = new Uint8Array(
      this._wasm.exports.memory.buffer,
      mappingsBufPtr,
      size
    );
    for (let i = 0; i < size; i++) {
      mappingsBuf[i] = aStr.charCodeAt(i);
    }

    const mappingsPtr = this._wasm.exports.parse_mappings(mappingsBufPtr);

    if (!mappingsPtr) {
      const error = this._wasm.exports.get_last_error();
      let msg = `Error parsing mappings (code ${error}): `;

      // XXX: keep these error codes in sync with `fitzgen/source-map-mappings`.
      switch (error) {
        case 1:
          msg +=
            'the mappings contained a negative line, column, source index, or name index';
          break
        case 2:
          msg += 'the mappings contained a number larger than 2**32';
          break
        case 3:
          msg += 'reached EOF while in the middle of parsing a VLQ';
          break
        case 4:
          msg += 'invalid base 64 character while parsing a VLQ';
          break
        default:
          msg += 'unknown error code';
          break
      }

      throw new Error(msg)
    }

    this._mappingsPtr = mappingsPtr;
  }

  eachMapping(aCallback, aContext, aOrder) {
    const context = aContext || null;
    const order = aOrder || SourceMapConsumer$1.GENERATED_ORDER;
    const sourceRoot = this.sourceRoot;

    this._wasm.withMappingCallback(
      (mapping) => {
        if (mapping.source !== null) {
          mapping.source = this._sources.at(mapping.source);
          mapping.source = util.computeSourceURL(
            sourceRoot,
            mapping.source,
            this._sourceMapURL
          );

          if (mapping.name !== null) {
            mapping.name = this._names.at(mapping.name);
          }
        }

        aCallback.call(context, mapping);
      },
      () => {
        switch (order) {
          case SourceMapConsumer$1.GENERATED_ORDER:
            this._wasm.exports.by_generated_location(this._getMappingsPtr());
            break
          case SourceMapConsumer$1.ORIGINAL_ORDER:
            this._wasm.exports.by_original_location(this._getMappingsPtr());
            break
          default:
            throw new Error('Unknown order of iteration.')
        }
      }
    );
  }

  allGeneratedPositionsFor(aArgs) {
    let source = util.getArg(aArgs, 'source');
    const originalLine = util.getArg(aArgs, 'line');
    const originalColumn = aArgs.column || 0;

    source = this._findSourceIndex(source);
    if (source < 0) {
      return []
    }

    if (originalLine < 1) {
      throw new Error('Line numbers must be >= 1')
    }

    if (originalColumn < 0) {
      throw new Error('Column numbers must be >= 0')
    }

    const mappings = [];

    this._wasm.withMappingCallback(
      (m) => {
        let lastColumn = m.lastGeneratedColumn;
        if (this._computedColumnSpans && lastColumn === null) {
          lastColumn = Infinity;
        }
        mappings.push({
          line: m.generatedLine,
          column: m.generatedColumn,
          lastColumn,
        });
      },
      () => {
        this._wasm.exports.all_generated_locations_for(
          this._getMappingsPtr(),
          source,
          originalLine - 1,
          'column' in aArgs,
          originalColumn
        );
      }
    );

    return mappings
  }

  destroy() {
    if (this._mappingsPtr !== 0) {
      this._wasm.exports.free_mappings(this._mappingsPtr);
      this._mappingsPtr = 0;
    }
  }

  /**
   * Compute the last column for each generated mapping. The last column is
   * inclusive.
   */
  computeColumnSpans() {
    if (this._computedColumnSpans) {
      return
    }

    this._wasm.exports.compute_column_spans(this._getMappingsPtr());
    this._computedColumnSpans = true;
  }

  /**
   * Returns the original source, line, and column information for the generated
   * source's line and column positions provided. The only argument is an object
   * with the following properties:
   *
   *   - line: The line number in the generated source.  The line number
   *     is 1-based.
   *   - column: The column number in the generated source.  The column
   *     number is 0-based.
   *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
   *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
   *
   * and an object is returned with the following properties:
   *
   *   - source: The original source file, or null.
   *   - line: The line number in the original source, or null.  The
   *     line number is 1-based.
   *   - column: The column number in the original source, or null.  The
   *     column number is 0-based.
   *   - name: The original identifier, or null.
   */
  originalPositionFor(aArgs) {
    const needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column'),
    };

    if (needle.generatedLine < 1) {
      throw new Error('Line numbers must be >= 1')
    }

    if (needle.generatedColumn < 0) {
      throw new Error('Column numbers must be >= 0')
    }

    let bias = util.getArg(
      aArgs,
      'bias',
      SourceMapConsumer$1.GREATEST_LOWER_BOUND
    );
    if (bias == null) {
      bias = SourceMapConsumer$1.GREATEST_LOWER_BOUND;
    }

    let mapping;
    this._wasm.withMappingCallback(
      (m) => (mapping = m),
      () => {
        this._wasm.exports.original_location_for(
          this._getMappingsPtr(),
          needle.generatedLine - 1,
          needle.generatedColumn,
          bias
        );
      }
    );

    if (mapping) {
      if (mapping.generatedLine === needle.generatedLine) {
        let source = util.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          source = util.computeSourceURL(
            this.sourceRoot,
            source,
            this._sourceMapURL
          );
        }

        let name = util.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }

        return {
          source,
          line: util.getArg(mapping, 'originalLine', null),
          column: util.getArg(mapping, 'originalColumn', null),
          name,
        }
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null,
    }
  }

  /**
   * Return true if we have the source content for every source in the source
   * map, false otherwise.
   */
  hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false
    }
    return (
      this.sourcesContent.length >= this._sources.size() &&
      !this.sourcesContent.some(function (sc) {
        return sc == null
      })
    )
  }

  /**
   * Returns the original source content. The only argument is the url of the
   * original source file. Returns null if no original source content is
   * available.
   */
  sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null
    }

    const index = this._findSourceIndex(aSource);
    if (index >= 0) {
      return this.sourcesContent[index]
    }

    let relativeSource = aSource;
    if (this.sourceRoot != null) {
      relativeSource = util.relative(this.sourceRoot, relativeSource);
    }

    let url;
    if (this.sourceRoot != null && (url = util.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      const fileUriAbsPath = relativeSource.replace(/^file:\/\//, '');
      if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
      }

      if (
        (!url.path || url.path == '/') &&
        this._sources.has('/' + relativeSource)
      ) {
        return this.sourcesContent[this._sources.indexOf('/' + relativeSource)]
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null
    }

    throw new Error('"' + relativeSource + '" is not in the SourceMap.')
  }

  /**
   * Returns the generated line and column information for the original source,
   * line, and column positions provided. The only argument is an object with
   * the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.  The line number
   *     is 1-based.
   *   - column: The column number in the original source.  The column
   *     number is 0-based.
   *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
   *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
   *
   * and an object is returned with the following properties:
   *
   *   - line: The line number in the generated source, or null.  The
   *     line number is 1-based.
   *   - column: The column number in the generated source, or null.
   *     The column number is 0-based.
   */
  generatedPositionFor(aArgs) {
    let source = util.getArg(aArgs, 'source');
    source = this._findSourceIndex(source);
    if (source < 0) {
      return {
        line: null,
        column: null,
        lastColumn: null,
      }
    }

    const needle = {
      source,
      originalLine: util.getArg(aArgs, 'line'),
      originalColumn: util.getArg(aArgs, 'column'),
    };

    if (needle.originalLine < 1) {
      throw new Error('Line numbers must be >= 1')
    }

    if (needle.originalColumn < 0) {
      throw new Error('Column numbers must be >= 0')
    }

    let bias = util.getArg(
      aArgs,
      'bias',
      SourceMapConsumer$1.GREATEST_LOWER_BOUND
    );
    if (bias == null) {
      bias = SourceMapConsumer$1.GREATEST_LOWER_BOUND;
    }

    let mapping;
    this._wasm.withMappingCallback(
      (m) => (mapping = m),
      () => {
        this._wasm.exports.generated_location_for(
          this._getMappingsPtr(),
          needle.source,
          needle.originalLine - 1,
          needle.originalColumn,
          bias
        );
      }
    );

    if (mapping) {
      if (mapping.source === needle.source) {
        let lastColumn = mapping.lastGeneratedColumn;
        if (this._computedColumnSpans && lastColumn === null) {
          lastColumn = Infinity;
        }
        return {
          line: util.getArg(mapping, 'generatedLine', null),
          column: util.getArg(mapping, 'generatedColumn', null),
          lastColumn,
        }
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null,
    }
  }
}

BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer$1;
var BasicSourceMapConsumer_1 = BasicSourceMapConsumer;

/**
 * An IndexedSourceMapConsumer instance represents a parsed source map which
 * we can query for information. It differs from BasicSourceMapConsumer in
 * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
 * input.
 *
 * The first parameter is a raw source map (either as a JSON string, or already
 * parsed to an object). According to the spec for indexed source maps, they
 * have the following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - file: Optional. The generated file this source map is associated with.
 *   - sections: A list of section definitions.
 *
 * Each value under the "sections" field has two fields:
 *   - offset: The offset into the original specified at which this section
 *       begins to apply, defined as an object with a "line" and "column"
 *       field.
 *   - map: A source map definition. This source map could also be indexed,
 *       but doesn't have to be.
 *
 * Instead of the "map" field, it's also possible to have a "url" field
 * specifying a URL to retrieve a source map from, but that's currently
 * unsupported.
 *
 * Here's an example source map, taken from the source map spec[0], but
 * modified to omit a section which uses the "url" field.
 *
 *  {
 *    version : 3,
 *    file: "app.js",
 *    sections: [{
 *      offset: {line:100, column:10},
 *      map: {
 *        version : 3,
 *        file: "section.js",
 *        sources: ["foo.js", "bar.js"],
 *        names: ["src", "maps", "are", "fun"],
 *        mappings: "AAAA,E;;ABCDE;"
 *      }
 *    }],
 *  }
 *
 * The second parameter, if given, is a string whose value is the URL
 * at which the source map was found.  This URL is used to compute the
 * sources array.
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
 */
class IndexedSourceMapConsumer extends SourceMapConsumer$1 {
  constructor(aSourceMap, aSourceMapURL) {
    return super(INTERNAL).then((that) => {
      let sourceMap = aSourceMap;
      if (typeof aSourceMap === 'string') {
        sourceMap = util.parseSourceMapInput(aSourceMap);
      }

      const version = util.getArg(sourceMap, 'version');
      const sections = util.getArg(sourceMap, 'sections');

      if (version != that._version) {
        throw new Error('Unsupported version: ' + version)
      }

      that._sources = new ArraySet();
      that._names = new ArraySet();
      that.__generatedMappings = null;
      that.__originalMappings = null;
      that.__generatedMappingsUnsorted = null;
      that.__originalMappingsUnsorted = null;

      let lastOffset = {
        line: -1,
        column: 0,
      };
      return Promise.all(
        sections.map((s) => {
          if (s.url) {
            // The url field will require support for asynchronicity.
            // See https://github.com/mozilla/source-map/issues/16
            throw new Error(
              'Support for url field in sections not implemented.'
            )
          }
          const offset = util.getArg(s, 'offset');
          const offsetLine = util.getArg(offset, 'line');
          const offsetColumn = util.getArg(offset, 'column');

          if (
            offsetLine < lastOffset.line ||
            (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)
          ) {
            throw new Error(
              'Section offsets must be ordered and non-overlapping.'
            )
          }
          lastOffset = offset;

          const cons = new SourceMapConsumer$1(
            util.getArg(s, 'map'),
            aSourceMapURL
          );
          return cons.then((consumer) => {
            return {
              generatedOffset: {
                // The offset fields are 0-based, but we use 1-based indices when
                // encoding/decoding from VLQ.
                generatedLine: offsetLine + 1,
                generatedColumn: offsetColumn + 1,
              },
              consumer,
            }
          })
        })
      ).then((s) => {
        that._sections = s;
        return that
      })
    })
  }

  // `__generatedMappings` and `__originalMappings` are arrays that hold the
  // parsed mapping coordinates from the source map's "mappings" attribute. They
  // are lazily instantiated, accessed via the `_generatedMappings` and
  // `_originalMappings` getters respectively, and we only parse the mappings
  // and create these arrays once queried for a source location. We jump through
  // these hoops because there can be many thousands of mappings, and parsing
  // them is expensive, so we only want to do it if we must.
  //
  // Each object in the arrays is of the form:
  //
  //     {
  //       generatedLine: The line number in the generated code,
  //       generatedColumn: The column number in the generated code,
  //       source: The path to the original source file that generated this
  //               chunk of code,
  //       originalLine: The line number in the original source that
  //                     corresponds to this chunk of generated code,
  //       originalColumn: The column number in the original source that
  //                       corresponds to this chunk of generated code,
  //       name: The name of the original symbol which generated this chunk of
  //             code.
  //     }
  //
  // All properties except for `generatedLine` and `generatedColumn` can be
  // `null`.
  //
  // `_generatedMappings` is ordered by the generated positions.
  //
  // `_originalMappings` is ordered by the original positions.
  get _generatedMappings() {
    if (!this.__generatedMappings) {
      this._sortGeneratedMappings();
    }

    return this.__generatedMappings
  }

  get _originalMappings() {
    if (!this.__originalMappings) {
      this._sortOriginalMappings();
    }

    return this.__originalMappings
  }

  get _generatedMappingsUnsorted() {
    if (!this.__generatedMappingsUnsorted) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__generatedMappingsUnsorted
  }

  get _originalMappingsUnsorted() {
    if (!this.__originalMappingsUnsorted) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__originalMappingsUnsorted
  }

  _sortGeneratedMappings() {
    const mappings = this._generatedMappingsUnsorted;
    mappings.sort(util.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = mappings;
  }

  _sortOriginalMappings() {
    const mappings = this._originalMappingsUnsorted;
    mappings.sort(util.compareByOriginalPositions);
    this.__originalMappings = mappings;
  }

  /**
   * The list of original sources.
   */
  get sources() {
    const sources = [];
    for (let i = 0; i < this._sections.length; i++) {
      for (let j = 0; j < this._sections[i].consumer.sources.length; j++) {
        sources.push(this._sections[i].consumer.sources[j]);
      }
    }
    return sources
  }

  /**
   * Returns the original source, line, and column information for the generated
   * source's line and column positions provided. The only argument is an object
   * with the following properties:
   *
   *   - line: The line number in the generated source.  The line number
   *     is 1-based.
   *   - column: The column number in the generated source.  The column
   *     number is 0-based.
   *
   * and an object is returned with the following properties:
   *
   *   - source: The original source file, or null.
   *   - line: The line number in the original source, or null.  The
   *     line number is 1-based.
   *   - column: The column number in the original source, or null.  The
   *     column number is 0-based.
   *   - name: The original identifier, or null.
   */
  originalPositionFor(aArgs) {
    const needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column'),
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    const sectionIndex = binarySearch.search(
      needle,
      this._sections,
      function (aNeedle, section) {
        const cmp =
          aNeedle.generatedLine - section.generatedOffset.generatedLine;
        if (cmp) {
          return cmp
        }

        return aNeedle.generatedColumn - section.generatedOffset.generatedColumn
      }
    );
    const section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null,
      }
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine - (section.generatedOffset.generatedLine - 1),
      column:
        needle.generatedColumn -
        (section.generatedOffset.generatedLine === needle.generatedLine
          ? section.generatedOffset.generatedColumn - 1
          : 0),
      bias: aArgs.bias,
    })
  }

  /**
   * Return true if we have the source content for every source in the source
   * map, false otherwise.
   */
  hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources()
    })
  }

  /**
   * Returns the original source content. The only argument is the url of the
   * original source file. Returns null if no original source content is
   * available.
   */
  sourceContentFor(aSource, nullOnMissing) {
    for (let i = 0; i < this._sections.length; i++) {
      const section = this._sections[i];

      const content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content
      }
    }
    if (nullOnMissing) {
      return null
    }
    throw new Error('"' + aSource + '" is not in the SourceMap.')
  }

  /**
   * Returns the generated line and column information for the original source,
   * line, and column positions provided. The only argument is an object with
   * the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.  The line number
   *     is 1-based.
   *   - column: The column number in the original source.  The column
   *     number is 0-based.
   *
   * and an object is returned with the following properties:
   *
   *   - line: The line number in the generated source, or null.  The
   *     line number is 1-based.
   *   - column: The column number in the generated source, or null.
   *     The column number is 0-based.
   */
  generatedPositionFor(aArgs) {
    for (let i = 0; i < this._sections.length; i++) {
      const section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (
        section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1
      ) {
        continue
      }
      const generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        const ret = {
          line:
            generatedPosition.line +
            (section.generatedOffset.generatedLine - 1),
          column:
            generatedPosition.column +
            (section.generatedOffset.generatedLine === generatedPosition.line
              ? section.generatedOffset.generatedColumn - 1
              : 0),
        };
        return ret
      }
    }

    return {
      line: null,
      column: null,
    }
  }

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  _parseMappings(aStr, aSourceRoot) {
    const generatedMappings = (this.__generatedMappingsUnsorted = []);
    const originalMappings = (this.__originalMappingsUnsorted = []);
    for (let i = 0; i < this._sections.length; i++) {
      const section = this._sections[i];

      const sectionMappings = [];
      section.consumer.eachMapping((m) => sectionMappings.push(m));

      for (let j = 0; j < sectionMappings.length; j++) {
        const mapping = sectionMappings[j];

        // TODO: test if null is correct here.  The original code used
        // `source`, which would actually have gotten used as null because
        // var's get hoisted.
        // See: https://github.com/mozilla/source-map/issues/333
        let source = util.computeSourceURL(
          section.consumer.sourceRoot,
          null,
          this._sourceMapURL
        );
        this._sources.add(source);
        source = this._sources.indexOf(source);

        let name = null;
        if (mapping.name) {
          this._names.add(mapping.name);
          name = this._names.indexOf(mapping.name);
        }

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        const adjustedMapping = {
          source,
          generatedLine:
            mapping.generatedLine + (section.generatedOffset.generatedLine - 1),
          generatedColumn:
            mapping.generatedColumn +
            (section.generatedOffset.generatedLine === mapping.generatedLine
              ? section.generatedOffset.generatedColumn - 1
              : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name,
        };

        generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          originalMappings.push(adjustedMapping);
        }
      }
    }
  }

  eachMapping(aCallback, aContext, aOrder) {
    const context = aContext || null;
    const order = aOrder || SourceMapConsumer$1.GENERATED_ORDER;

    let mappings;
    switch (order) {
      case SourceMapConsumer$1.GENERATED_ORDER:
        mappings = this._generatedMappings;
        break
      case SourceMapConsumer$1.ORIGINAL_ORDER:
        mappings = this._originalMappings;
        break
      default:
        throw new Error('Unknown order of iteration.')
    }

    const sourceRoot = this.sourceRoot;
    mappings
      .map(function (mapping) {
        let source = null;
        if (mapping.source !== null) {
          source = this._sources.at(mapping.source);
          source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL);
        }
        return {
          source,
          generatedLine: mapping.generatedLine,
          generatedColumn: mapping.generatedColumn,
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: mapping.name === null ? null : this._names.at(mapping.name),
        }
      }, this)
      .forEach(aCallback, context);
  }

  /**
   * Find the mapping that best matches the hypothetical "needle" mapping that
   * we are searching for in the given "haystack" of mappings.
   */
  _findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError(
        'Line must be greater than or equal to 1, got ' + aNeedle[aLineName]
      )
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError(
        'Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]
      )
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias)
  }

  allGeneratedPositionsFor(aArgs) {
    const line = util.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    const needle = {
      source: util.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util.getArg(aArgs, 'column', 0),
    };

    needle.source = this._findSourceIndex(needle.source);
    if (needle.source < 0) {
      return []
    }

    if (needle.originalLine < 1) {
      throw new Error('Line numbers must be >= 1')
    }

    if (needle.originalColumn < 0) {
      throw new Error('Column numbers must be >= 0')
    }

    const mappings = [];

    let index = this._findMapping(
      needle,
      this._originalMappings,
      'originalLine',
      'originalColumn',
      util.compareByOriginalPositions,
      binarySearch.LEAST_UPPER_BOUND
    );
    if (index >= 0) {
      let mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        const originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          let lastColumn = mapping.lastGeneratedColumn;
          if (this._computedColumnSpans && lastColumn === null) {
            lastColumn = Infinity;
          }
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn,
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        const originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (
          mapping &&
          mapping.originalLine === line &&
          mapping.originalColumn == originalColumn
        ) {
          let lastColumn = mapping.lastGeneratedColumn;
          if (this._computedColumnSpans && lastColumn === null) {
            lastColumn = Infinity;
          }
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn,
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings
  }

  destroy() {
    for (let i = 0; i < this._sections.length; i++) {
      this._sections[i].consumer.destroy();
    }
  }
}
var IndexedSourceMapConsumer_1 = IndexedSourceMapConsumer;

/*
 * Cheat to get around inter-twingled classes.  `factory()` can be at the end
 * where it has access to non-hoisted classes, but it gets hoisted itself.
 */
function _factory(aSourceMap, aSourceMapURL) {
  let sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = util.parseSourceMapInput(aSourceMap);
  }

  const consumer =
    sourceMap.sections != null
      ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL)
      : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);
  return Promise.resolve(consumer)
}

function _factoryBSM(aSourceMap, aSourceMapURL) {
  return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL)
}

var sourceMapConsumer = {
	SourceMapConsumer: SourceMapConsumer_1,
	BasicSourceMapConsumer: BasicSourceMapConsumer_1,
	IndexedSourceMapConsumer: IndexedSourceMapConsumer_1
};

var require$$0 = sourceMapGenerator;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

const SourceMapGenerator = require$$0.SourceMapGenerator;


// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
// operating systems these days (capturing the result).
const REGEX_NEWLINE = /(\r?\n)/;

// Newline character code for charCodeAt() comparisons
const NEWLINE_CODE = 10;

// Private symbol for identifying `SourceNode`s when multiple versions of
// the source-map library are loaded. This MUST NOT CHANGE across
// versions!
const isSourceNode = '$$$isSourceNode$$$';

/**
 * SourceNodes provide a way to abstract over interpolating/concatenating
 * snippets of generated JavaScript source code while maintaining the line and
 * column information associated with the original source code.
 *
 * @param aLine The original line number.
 * @param aColumn The original column number.
 * @param aSource The original source's filename.
 * @param aChunks Optional. An array of strings which are snippets of
 *        generated JS, or other SourceNodes.
 * @param aName The original identifier.
 */
class SourceNode {
  constructor(aLine, aColumn, aSource, aChunks, aName) {
    this.children = [];
    this.sourceContents = {};
    this.line = aLine == null ? null : aLine;
    this.column = aColumn == null ? null : aColumn;
    this.source = aSource == null ? null : aSource;
    this.name = aName == null ? null : aName;
    this[isSourceNode] = true;
    if (aChunks != null) this.add(aChunks);
  }

  /**
   * Creates a SourceNode from generated code and a SourceMapConsumer.
   *
   * @param aGeneratedCode The generated code
   * @param aSourceMapConsumer The SourceMap for the generated code
   * @param aRelativePath Optional. The path that relative sources in the
   *        SourceMapConsumer should be relative to.
   */
  static fromStringWithSourceMap(
    aGeneratedCode,
    aSourceMapConsumer,
    aRelativePath
  ) {
    // The SourceNode we want to fill with the generated code
    // and the SourceMap
    const node = new SourceNode();

    // All even indices of this array are one line of the generated code,
    // while all odd indices are the newlines between two adjacent lines
    // (since `REGEX_NEWLINE` captures its match).
    // Processed fragments are accessed by calling `shiftNextLine`.
    const remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
    let remainingLinesIndex = 0;
    const shiftNextLine = function () {
      const lineContents = getNextLine();
      // The last line of a file might not have a newline.
      const newLine = getNextLine() || '';
      return lineContents + newLine

      function getNextLine() {
        return remainingLinesIndex < remainingLines.length
          ? remainingLines[remainingLinesIndex++]
          : undefined
      }
    };

    // We need to remember the position of "remainingLines"
    let lastGeneratedLine = 1,
      lastGeneratedColumn = 0;

    // The generate SourceNodes we need a code range.
    // To extract it current and last mapping is used.
    // Here we store the last mapping.
    let lastMapping = null;
    let nextLine;

    aSourceMapConsumer.eachMapping(function (mapping) {
      if (lastMapping !== null) {
        // We add the code from "lastMapping" to "mapping":
        // First check if there is a new line in between.
        if (lastGeneratedLine < mapping.generatedLine) {
          // Associate first line with "lastMapping"
          addMappingWithCode(lastMapping, shiftNextLine());
          lastGeneratedLine++;
          lastGeneratedColumn = 0;
          // The remaining code is added without mapping
        } else {
          // There is no new line in between.
          // Associate the code between "lastGeneratedColumn" and
          // "mapping.generatedColumn" with "lastMapping"
          nextLine = remainingLines[remainingLinesIndex] || '';
          const code = nextLine.substr(
            0,
            mapping.generatedColumn - lastGeneratedColumn
          );
          remainingLines[remainingLinesIndex] = nextLine.substr(
            mapping.generatedColumn - lastGeneratedColumn
          );
          lastGeneratedColumn = mapping.generatedColumn;
          addMappingWithCode(lastMapping, code);
          // No more remaining code, continue
          lastMapping = mapping;
          return
        }
      }
      // We add the generated code until the first mapping
      // to the SourceNode without any mapping.
      // Each line is added as separate string.
      while (lastGeneratedLine < mapping.generatedLine) {
        node.add(shiftNextLine());
        lastGeneratedLine++;
      }
      if (lastGeneratedColumn < mapping.generatedColumn) {
        nextLine = remainingLines[remainingLinesIndex] || '';
        node.add(nextLine.substr(0, mapping.generatedColumn));
        remainingLines[remainingLinesIndex] = nextLine.substr(
          mapping.generatedColumn
        );
        lastGeneratedColumn = mapping.generatedColumn;
      }
      lastMapping = mapping;
    }, this);
    // We have processed all mappings.
    if (remainingLinesIndex < remainingLines.length) {
      if (lastMapping) {
        // Associate the remaining code in the current line with "lastMapping"
        addMappingWithCode(lastMapping, shiftNextLine());
      }
      // and add the remaining lines without any mapping
      node.add(remainingLines.splice(remainingLinesIndex).join(''));
    }

    // Copy sourcesContent into SourceNode
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      const content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aRelativePath != null) {
          sourceFile = util.join(aRelativePath, sourceFile);
        }
        node.setSourceContent(sourceFile, content);
      }
    });

    return node

    function addMappingWithCode(mapping, code) {
      if (mapping === null || mapping.source === undefined) {
        node.add(code);
      } else {
        const source = aRelativePath
          ? util.join(aRelativePath, mapping.source)
          : mapping.source;
        node.add(
          new SourceNode(
            mapping.originalLine,
            mapping.originalColumn,
            source,
            code,
            mapping.name
          )
        );
      }
    }
  }

  /**
   * Add a chunk of generated JS to this source node.
   *
   * @param aChunk A string snippet of generated JS code, another instance of
   *        SourceNode, or an array where each member is one of those things.
   */
  add(aChunk) {
    if (Array.isArray(aChunk)) {
      aChunk.forEach(function (chunk) {
        this.add(chunk);
      }, this);
    } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
      if (aChunk) {
        this.children.push(aChunk);
      }
    } else {
      throw new TypeError(
        'Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' +
          aChunk
      )
    }
    return this
  }

  /**
   * Add a chunk of generated JS to the beginning of this source node.
   *
   * @param aChunk A string snippet of generated JS code, another instance of
   *        SourceNode, or an array where each member is one of those things.
   */
  prepend(aChunk) {
    if (Array.isArray(aChunk)) {
      for (let i = aChunk.length - 1; i >= 0; i--) {
        this.prepend(aChunk[i]);
      }
    } else if (aChunk[isSourceNode] || typeof aChunk === 'string') {
      this.children.unshift(aChunk);
    } else {
      throw new TypeError(
        'Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' +
          aChunk
      )
    }
    return this
  }

  /**
   * Walk over the tree of JS snippets in this node and its children. The
   * walking function is called once for each snippet of JS and is passed that
   * snippet and the its original associated source's line/column location.
   *
   * @param aFn The traversal function.
   */
  walk(aFn) {
    let chunk;
    for (let i = 0, len = this.children.length; i < len; i++) {
      chunk = this.children[i];
      if (chunk[isSourceNode]) {
        chunk.walk(aFn);
      } else if (chunk !== '') {
        aFn(chunk, {
          source: this.source,
          line: this.line,
          column: this.column,
          name: this.name,
        });
      }
    }
  }

  /**
   * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
   * each of `this.children`.
   *
   * @param aSep The separator.
   */
  join(aSep) {
    let newChildren;
    let i;
    const len = this.children.length;
    if (len > 0) {
      newChildren = [];
      for (i = 0; i < len - 1; i++) {
        newChildren.push(this.children[i]);
        newChildren.push(aSep);
      }
      newChildren.push(this.children[i]);
      this.children = newChildren;
    }
    return this
  }

  /**
   * Call String.prototype.replace on the very right-most source snippet. Useful
   * for trimming whitespace from the end of a source node, etc.
   *
   * @param aPattern The pattern to replace.
   * @param aReplacement The thing to replace the pattern with.
   */
  replaceRight(aPattern, aReplacement) {
    const lastChild = this.children[this.children.length - 1];
    if (lastChild[isSourceNode]) {
      lastChild.replaceRight(aPattern, aReplacement);
    } else if (typeof lastChild === 'string') {
      this.children[this.children.length - 1] = lastChild.replace(
        aPattern,
        aReplacement
      );
    } else {
      this.children.push(''.replace(aPattern, aReplacement));
    }
    return this
  }

  /**
   * Set the source content for a source file. This will be added to the SourceMapGenerator
   * in the sourcesContent field.
   *
   * @param aSourceFile The filename of the source file
   * @param aSourceContent The content of the source file
   */
  setSourceContent(aSourceFile, aSourceContent) {
    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
  }

  /**
   * Walk over the tree of SourceNodes. The walking function is called for each
   * source file content and is passed the filename and source content.
   *
   * @param aFn The traversal function.
   */
  walkSourceContents(aFn) {
    for (let i = 0, len = this.children.length; i < len; i++) {
      if (this.children[i][isSourceNode]) {
        this.children[i].walkSourceContents(aFn);
      }
    }

    const sources = Object.keys(this.sourceContents);
    for (let i = 0, len = sources.length; i < len; i++) {
      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
    }
  }

  /**
   * Return the string representation of this source node. Walks over the tree
   * and concatenates all the various snippets together to one string.
   */
  toString() {
    let str = '';
    this.walk(function (chunk) {
      str += chunk;
    });
    return str
  }

  /**
   * Returns the string representation of this source node along with a source
   * map.
   */
  toStringWithSourceMap(aArgs) {
    const generated = {
      code: '',
      line: 1,
      column: 0,
    };
    const map = new SourceMapGenerator(aArgs);
    let sourceMappingActive = false;
    let lastOriginalSource = null;
    let lastOriginalLine = null;
    let lastOriginalColumn = null;
    let lastOriginalName = null;
    this.walk(function (chunk, original) {
      generated.code += chunk;
      if (
        original.source !== null &&
        original.line !== null &&
        original.column !== null
      ) {
        if (
          lastOriginalSource !== original.source ||
          lastOriginalLine !== original.line ||
          lastOriginalColumn !== original.column ||
          lastOriginalName !== original.name
        ) {
          map.addMapping({
            source: original.source,
            original: {
              line: original.line,
              column: original.column,
            },
            generated: {
              line: generated.line,
              column: generated.column,
            },
            name: original.name,
          });
        }
        lastOriginalSource = original.source;
        lastOriginalLine = original.line;
        lastOriginalColumn = original.column;
        lastOriginalName = original.name;
        sourceMappingActive = true;
      } else if (sourceMappingActive) {
        map.addMapping({
          generated: {
            line: generated.line,
            column: generated.column,
          },
        });
        lastOriginalSource = null;
        sourceMappingActive = false;
      }
      for (let idx = 0, length = chunk.length; idx < length; idx++) {
        if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
          generated.line++;
          generated.column = 0;
          // Mappings end at eol
          if (idx + 1 === length) {
            lastOriginalSource = null;
            sourceMappingActive = false;
          } else if (sourceMappingActive) {
            map.addMapping({
              source: original.source,
              original: {
                line: original.line,
                column: original.column,
              },
              generated: {
                line: generated.line,
                column: generated.column,
              },
              name: original.name,
            });
          }
        } else {
          generated.column++;
        }
      }
    });
    this.walkSourceContents(function (sourceFile, sourceContent) {
      map.setSourceContent(sourceFile, sourceContent);
    });

    return { code: generated.code, map }
  }
}

var SourceNode_1 = SourceNode;

var sourceNode = {
	SourceNode: SourceNode_1
};

var require$$1 = sourceMapConsumer;

var require$$2 = sourceNode;

/*
 * Copyright 2009-2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE.txt or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

require$$0.SourceMapGenerator;
var SourceMapConsumer =
  require$$1.SourceMapConsumer;
require$$2.SourceNode;

const splitRE = /\r?\n/;
const range = 2;
function posToNumber(source, pos) {
    if (typeof pos === 'number')
        return pos;
    const lines = source.split(splitRE);
    const { line, column } = pos;
    let start = 0;
    for (let i = 0; i < line - 1; i++) {
        start += lines[i].length + 1;
    }
    return start + column;
}
function generateCodeFrame(source, start = 0, end) {
    start = posToNumber(source, start);
    end = end || start;
    const lines = source.split(splitRE);
    let count = 0;
    const res = [];
    for (let i = 0; i < lines.length; i++) {
        count += lines[i].length + 1;
        if (count >= start) {
            for (let j = i - range; j <= i + range || end > count; j++) {
                if (j < 0 || j >= lines.length)
                    continue;
                const line = j + 1;
                res.push(`${line}${' '.repeat(Math.max(3 - String(line).length, 0))}|  ${lines[j]}`);
                const lineLength = lines[j].length;
                if (j === i) {
                    // push underline
                    const pad = start - (count - lineLength) + 1;
                    const length = Math.max(1, end > count ? lineLength - pad : end - start);
                    res.push(`   |  ` + ' '.repeat(pad) + '^'.repeat(length));
                }
                else if (j > i) {
                    if (end > count) {
                        const length = Math.max(Math.min(end - count, lineLength), 1);
                        res.push(`   |  ` + '^'.repeat(length));
                    }
                    count += lineLength + 1;
                }
            }
            break;
        }
    }
    return res.join('\n');
}
const isWindows = os__default["default"].platform() === 'win32';
function normalizePath(id) {
    return isWindows ? id.replace(/\\/g, '/') : id;
}
function generateCodeFrameSourceMapConsumer(consumer, m, options = {}) {
    if (m.file) {
        const res = consumer.originalPositionFor({
            line: m.line,
            column: m.column,
        });
        if (res.source != null && res.line != null && res.column != null) {
            const code = consumer.sourceContentFor(res.source, true);
            if (code) {
                return {
                    type: m.type,
                    file: options.sourceRoot
                        ? normalizePath(path__default["default"].relative(options.sourceRoot, res.source.replace('\\\\?\\', '')))
                        : res.source,
                    line: res.line,
                    column: res.column,
                    message: m.message,
                    code: generateCodeFrame(code, { line: res.line, column: res.column }),
                };
            }
        }
    }
}
function initConsumer(filename) {
    if (fs__default["default"].existsSync(filename)) {
        return new SourceMapConsumer(fs__default["default"].readFileSync(filename, 'utf8'));
    }
    return Promise.resolve(undefined);
}
function generateCodeFrameWithSourceMapPath(filename, messages, options = {}) {
    if (typeof messages === 'string') {
        try {
            messages = JSON.parse(messages);
        }
        catch (e) { }
    }
    if (Array.isArray(messages) && messages.length) {
        return new Promise((resolve) => {
            initConsumer(filename).then((consumer) => {
                resolve(messages
                    .map((m) => {
                    if (m.file && consumer) {
                        const message = generateCodeFrameSourceMapConsumer(consumer, m, options);
                        if (message) {
                            return message;
                        }
                    }
                    if (!m.file) {
                        m.file = '';
                    }
                    return m;
                })
                    .filter(Boolean));
            });
        });
    }
    return Promise.resolve([]);
}

const nixSlashes = (x) => x.replace(/\\/g, '/');
const sourcemapCatch = {};
function stacktracey(stacktrace, opts) {
    const stack = opts.preset.parseStacktrace(stacktrace);
    let parseStack = Promise.resolve();
    stack.items.forEach((item, index) => {
        const fn = (item, index) => {
            const { line = 0, column = 0, file, fileName, fileRelative } = item;
            if (item.thirdParty) {
                return Promise.resolve();
            }
            function _getSourceMapContent(file, fileName, fileRelative) {
                return opts.preset
                    .getSourceMapContent(file, fileName, fileRelative)
                    .then((content) => {
                    if (content) {
                        return getConsumer(content).then((consumer) => {
                            return parseSourceMapContent(consumer, {
                                line,
                                column,
                            }, !!opts.withSourceContent);
                        });
                    }
                });
            }
            try {
                return _getSourceMapContent(file, fileName, fileRelative).then((sourceMapContent) => {
                    if (sourceMapContent) {
                        const { source, sourcePath, sourceLine, sourceColumn, sourceContent, fileName = '', } = sourceMapContent;
                        stack.items[index] = Object.assign({}, item, {
                            file: source,
                            line: sourceLine,
                            column: sourceColumn,
                            fileShort: sourcePath,
                            fileRelative: source,
                            fileName,
                            thirdParty: isThirdParty(sourcePath),
                            parsed: true,
                            sourceContent,
                        });
                        /**
                         * 以 .js 结尾
                         * 包含 app-service.js 则需要再解析 两次
                         * 不包含 app-service.js 则无需再解析 一次
                         */
                        const curItem = stack.items[index];
                        if (stack.isMP &&
                            curItem.beforeParse.indexOf('app-service') !== -1) {
                            return fn(curItem, index);
                        }
                    }
                });
            }
            catch (error) {
                return Promise.resolve();
            }
        };
        parseStack = parseStack.then(() => {
            return new Promise((resolve, reject) => {
                setTimeout(() => {
                    fn(item, index).then(resolve);
                }, 0);
            });
        });
    });
    const _promise = new Promise((resolve, reject) => {
        parseStack
            .then(() => {
            const parseError = opts.preset.asTableStacktrace({
                stack,
                maxColumnWidths: {
                    callee: 999,
                    file: 999,
                    sourceLine: 999,
                },
                stacktrace,
            });
            resolve(parseError);
        })
            .catch(() => {
            resolve(stacktrace);
        });
    });
    return _promise;
}
function isThirdParty(relativePath) {
    return relativePath.indexOf('@dcloudio') !== -1;
}
function getConsumer(content) {
    return new Promise((resolve, reject) => {
        try {
            if (SourceMapConsumer.with) {
                SourceMapConsumer.with(content, null, (consumer) => {
                    resolve(consumer);
                });
            }
            else {
                // @ts-ignore
                const consumer = SourceMapConsumer(content);
                resolve(consumer);
            }
        }
        catch (error) {
            reject();
        }
    });
}
function getSourceMapContent(sourcemapUrl) {
    try {
        return (sourcemapCatch[sourcemapUrl] ||
            (sourcemapCatch[sourcemapUrl] = new Promise((resolve, reject) => {
                try {
                    if (/^[http|https]+:/i.test(sourcemapUrl)) {
                        uni.request({
                            url: sourcemapUrl,
                            success: (res) => {
                                if (res.statusCode === 200) {
                                    sourcemapCatch[sourcemapUrl] = res.data;
                                    resolve(sourcemapCatch[sourcemapUrl]);
                                }
                                else {
                                    resolve((sourcemapCatch[sourcemapUrl] = ''));
                                }
                            },
                            fail() {
                                resolve((sourcemapCatch[sourcemapUrl] = ''));
                            },
                        });
                    }
                    else {
                        sourcemapCatch[sourcemapUrl] = fs__default["default"].readFileSync(sourcemapUrl, 'utf-8');
                        resolve(sourcemapCatch[sourcemapUrl]);
                    }
                }
                catch (error) {
                    resolve('');
                }
            })));
    }
    catch (error) {
        return '';
    }
}
function parseSourceMapContent(consumer, obj, withSourceContent) {
    // source -> 'uni-app:///node_modules/@sentry/browser/esm/helpers.js'
    const { source, line: sourceLine, column: sourceColumn, } = consumer.originalPositionFor(obj);
    if (source) {
        const sourcePathSplit = source.split('/');
        const sourcePath = sourcePathSplit.slice(3).join('/');
        const fileName = sourcePathSplit.pop();
        return {
            source,
            sourcePath,
            sourceLine: sourceLine === null ? 0 : sourceLine,
            sourceColumn: sourceColumn === null ? 0 : sourceColumn,
            fileName,
            sourceContent: withSourceContent
                ? consumer.sourceContentFor(source) || ''
                : '',
        };
    }
}
function joinItem(item) {
    if (typeof item === 'string') {
        return item;
    }
    const a = item[0];
    const b = item[1] ? `  ${item[1]}` : '';
    const c = item[2] ? ` ${item[2]}` : '';
    return `${a}${b}${c}`;
}
function uniStracktraceyPreset(opts) {
    const { base, sourceRoot, splitThirdParty, uniPlatform } = opts;
    let stack;
    return {
        /**
         *
         * 微信特殊处理
         * 微信解析步骤：
         *    1. //usr/app-service.js -> 'weixin/__APP__/app-service.map.map'
         *    2. //usr/pages/API/app-service.js -> 'weixin/pages/API/app-service.map.map'
         *    3. uni-list-item/uni-list-item.js -> ${base}/uni-list-item/uni-list-item.js.map
         */
        parseSourceMapUrl(file, fileName, fileRelative) {
            // 组合 sourceMapUrl
            if (fileRelative.indexOf('(') !== -1)
                fileRelative = fileRelative.match(/\((.*)/)[1];
            if (!base || !fileRelative)
                return '';
            if (sourceRoot) {
                return `${fileRelative.replace(sourceRoot, base + '/')}.map`;
            }
            let baseAfter = '';
            if (stack.isMP) {
                if (fileRelative.indexOf('app-service.js') !== -1) {
                    baseAfter = (base.match(/\w$/) ? '/' : '') + '__WEIXIN__';
                    if (fileRelative === fileName) {
                        baseAfter += '/__APP__';
                    }
                    fileRelative = fileRelative.replace('.js', '.map');
                }
                if (baseAfter && !!fileRelative.match(/^\w/))
                    baseAfter += '/';
            }
            return `${base}${baseAfter}${fileRelative}.map`;
        },
        getSourceMapContent(file, fileName, fileRelative) {
            if (stack.isMP && fileRelative.indexOf('.js') === -1) {
                return Promise.resolve('');
            }
            const sourcemapUrl = this.parseSourceMapUrl(file, fileName, fileRelative);
            return Promise.resolve(getSourceMapContent(sourcemapUrl));
        },
        parseStacktrace(stacktrace) {
            stack = new StackTracey$1(stacktrace, uniPlatform);
            return stack;
        },
        asTableStacktrace({ maxColumnWidths, stacktrace, stack }) {
            const errorName = stacktrace.split('\n')[0];
            const lines = stack.asTable
                ? stack.asTable(maxColumnWidths ? { maxColumnWidths } : undefined)
                : { items: [], thirdPartyItems: [] };
            if (lines.items.length || lines.thirdPartyItems.length) {
                const { items: stackLines, thirdPartyItems: stackThirdPartyLines } = lines;
                const userError = stack.itemsHeader
                    .map((item) => {
                    if (item === '%StacktraceyItem%') {
                        const _stack = stackLines.shift();
                        return _stack ? joinItem(_stack) : '';
                    }
                    return item;
                })
                    .filter(Boolean)
                    .join('\n');
                const thirdParty = stackThirdPartyLines.length
                    ? stackThirdPartyLines.map(joinItem).join('\n')
                    : '';
                if (splitThirdParty) {
                    return {
                        userError,
                        thirdParty,
                    };
                }
                return userError + '\n' + thirdParty;
            }
            else {
                if (splitThirdParty) {
                    return {
                        userError: errorName,
                        thirdParty: '',
                    };
                }
                return errorName;
            }
        },
    };
}
function utsStracktraceyPreset(opts) {
    const { inputRoot, outputRoot, sourceMapRoot } = opts;
    let errStack = [];
    return {
        parseSourceMapUrl(file, fileName, fileRelative) {
            return path__default["default"].resolve(sourceMapRoot, path__default["default"].relative(outputRoot, file) + '.map');
        },
        getSourceMapContent(file, fileName, fileRelative) {
            // 根据 base,filename 组合 sourceMapUrl
            return Promise.resolve(getSourceMapContent(this.parseSourceMapUrl(file, fileName, fileRelative)));
        },
        parseStacktrace(str) {
            const lines = (str || '').split('\n');
            const entries = lines
                .map((line, index) => {
                line = line.trim();
                const matches = line.match(/\s*(.+\.kt):([0-9]+):([0-9]+):\s+(.*)/);
                if (matches) {
                    errStack.push('%StacktraceyItem%');
                }
                else {
                    errStack.push(line);
                    return;
                }
                const fileName = matches[1].replace(/^.*(\\|\/|\:)/, '');
                return {
                    beforeParse: line,
                    callee: '',
                    index: false,
                    native: false,
                    file: nixSlashes(matches[1]),
                    line: parseInt(matches[2]),
                    column: parseInt(matches[3]),
                    fileName,
                    fileShort: line,
                    errMsg: matches[4] || '',
                    calleeShort: '',
                    fileRelative: '',
                    thirdParty: false,
                };
            })
                .filter((x) => x !== undefined);
            return {
                items: entries,
                itemsHeader: [],
            };
        },
        asTableStacktrace({ maxColumnWidths, stacktrace, stack }) {
            return errStack
                .map((item) => {
                if (item === '%StacktraceyItem%') {
                    const _stack = stack.items.shift();
                    if (_stack) {
                        return `at ${nixSlashes(path__default["default"].relative(inputRoot, _stack.file.replace('\\\\?\\', '')))}:${_stack.line}:${_stack.column}
${_stack.errMsg}`;
                    }
                    return '';
                }
                return item;
            })
                .join('\n');
        },
    };
}

exports.SourceMapConsumer = SourceMapConsumer;
exports.generateCodeFrame = generateCodeFrame;
exports.generateCodeFrameSourceMapConsumer = generateCodeFrameSourceMapConsumer;
exports.generateCodeFrameWithSourceMapPath = generateCodeFrameWithSourceMapPath;
exports.stacktracey = stacktracey;
exports.uniStracktraceyPreset = uniStracktraceyPreset;
exports.utsStracktraceyPreset = utsStracktraceyPreset;