Function lineToLineSourceMap

local-cli/bundle/output/unbundle/util.js:23–38

(source: string, filename: string = '')

function lineToLineSourceMap(source: string, filename: string = ''): MappingsMap {
  // The first line mapping in our package is the base64vlq code for zeros (A).
  const firstLine = 'AAAA;';

  // Most other lines in our mappings are all zeros (for module, column etc)
  // except for the lineno mapping: curLineno - prevLineno = 1; Which is C.
  const line = 'AACA;';

  return {
    file: filename,
    mappings: firstLine + Array(countLines(source)).join(line),
    sources: [filename],
    names: [],
    version: 3,
  };
}

const wrapperEnd = wrappedCode => wrappedCode.indexOf('{') + 1;