lib/utils/get-module-chunk.js
function getModuleChunk(module, modules) {
  let chunks;

  if (webpackVersion.IS_4) {
    chunks = Array.from(module.chunksIterable);
  } else if (parseInt(webpackVersion(), 10) >= 3) {
    chunks = module.mapChunks();
  } else {
    chunks = module.chunks;
  }

  // webpack 1 compat
  const issuer = typeof module.issuer === 'string'
    ? modules.find(m => m.request === module.issuer)
    : module.issuer;

  if (Array.isArray(chunks) && chunks.length > 0) {
    return chunks[chunks.length - 1];
  } else if (issuer) {
    return getModuleChunk(issuer, modules);
  }

  return null;
}
function getModuleChunk(module, modules) {
  let chunks;

  if (webpackVersion.IS_4) {
    chunks = Array.from(module.chunksIterable);
  } else if (parseInt(webpackVersion(), 10) >= 3) {
    chunks = module.mapChunks();
  } else {
    chunks = module.chunks;
  }

  // webpack 1 compat
  const issuer = typeof module.issuer === 'string'
    ? modules.find(m => m.request === module.issuer)
    : module.issuer;

  if (Array.isArray(chunks) && chunks.length > 0) {
    return chunks[chunks.length - 1];
  } else if (issuer) {
    return getModuleChunk(issuer, modules);
  }

  return null;
}
function getModuleChunk ( module , modules ) { let chunks ; if ( webpackVersion . IS_4 ) { chunks = Array . from ( module . chunksIterable ) ; } else if ( parseInt ( webpackVersion ( ) , 10 ) >= 3 ) { chunks = module . mapChunks ( ) ; } else { chunks = module . chunks ; } // webpack 1 compat const issuer = typeof module . issuer === 'string' ? modules . find ( m => m . request === module . issuer ) : module . issuer ; if ( Array . isArray ( chunks ) && chunks . length > 0 ) { return chunks [ chunks . length - 1 ] ; } else if ( issuer ) { return getModuleChunk ( issuer , modules ) ; } return null ; }
Find nearest module chunk (not sure that is reliable method, but who cares).
@see http://stackoverflow.com/questions/43202761/how-to-determine-all-module-chunks-in-webpack
@param {NormalModule} module
@param {NormalModule[]} modules - webpack 1 compat
@return {Chunk|null}
Find nearest module chunk ( not sure that is reliable method but who cares ) .