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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/metro-source-map/src

Просмотр файла: BundleBuilder.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true,
});
exports.BundleBuilder = void 0;
exports.createIndexMap = createIndexMap;
const EMPTY_MAP = {
  version: 3,
  sources: [],
  names: [],
  mappings: "A",
};
class BundleBuilder {
  constructor(file) {
    this._file = file;
    this._sections = [];
    this._line = 0;
    this._column = 0;
    this._code = "";
    this._afterMappedContent = false;
  }
  _pushMapSection(map) {
    this._sections.push({
      map,
      offset: {
        column: this._column,
        line: this._line,
      },
    });
  }
  _endMappedContent() {
    if (this._afterMappedContent) {
      this._pushMapSection(EMPTY_MAP);
      this._afterMappedContent = false;
    }
  }
  append(code, map) {
    if (!code.length) {
      return this;
    }
    const { lineBreaks, lastLineColumns } = measureString(code);
    if (map) {
      this._pushMapSection(map);
      this._afterMappedContent = true;
    } else {
      this._endMappedContent();
    }
    this._afterMappedContent = !!map;
    this._line = this._line + lineBreaks;
    if (lineBreaks > 0) {
      this._column = lastLineColumns;
    } else {
      this._column = this._column + lastLineColumns;
    }
    this._code = this._code + code;
    return this;
  }
  getMap() {
    this._endMappedContent();
    return createIndexMap(this._file, this._sections);
  }
  getCode() {
    return this._code;
  }
}
exports.BundleBuilder = BundleBuilder;
const reLineBreak = /\r\n|\r|\n/g;
function measureString(str) {
  let lineBreaks = 0;
  let match;
  let lastLineStart = 0;
  while ((match = reLineBreak.exec(str))) {
    ++lineBreaks;
    lastLineStart = match.index + match[0].length;
  }
  const lastLineColumns = str.length - lastLineStart;
  return {
    lineBreaks,
    lastLineColumns,
  };
}
function createIndexMap(file, sections) {
  return {
    version: 3,
    file,
    sections,
  };
}

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