export function load()

in website/_webpack/js/flow-loader.js [41:85]

• 45 lines of code
• 6 McCabe index (conditional complexity)

export function load(version) {
  if (version in versionCache) {
    return Promise.resolve(versionCache[version]);
  }
  const majorVersion =
    version === 'master'
    ? Infinity
    : parseInt(version.split('.')[1], 10);
  const libs = majorVersion <= 54 ? [
    `/static/${version}/flowlib/core.js`,
    `/static/${version}/flowlib/bom.js`,
    `/static/${version}/flowlib/cssom.js`,
    `/static/${version}/flowlib/dom.js`,
    `/static/${version}/flowlib/node.js`,
    `/static/${version}/flowlib/react.js`,
    `/static/${version}/flowlib/streams.js`,
  ] : majorVersion <= 71 ? [
    `/static/${version}/flowlib/core.js`,
    `/static/${version}/flowlib/react.js`,
  ] : [
    `/static/${version}/flowlib/core.js`,
    `/static/${version}/flowlib/react.js`,
    `/static/${version}/flowlib/intl.js`,
  ];
  const flowLoader = new Promise(function(resolve) {
    requirejs([`/static/${version}/flow.js`], resolve);
  });
  return Promise.all([flowLoader, ...libs.map(get)])
    .then(function([_flow, ...contents]) {
      contents.forEach(function(nameAndContent) {
        self.flow.registerFile(nameAndContent[0], nameAndContent[1]);
      });
      self.flow.registerFile('try-lib.js', TRY_LIB_CONTENTS);
      if (majorVersion <= 126) {
        self.flow.setLibs([...libs, 'try-lib.js']);
      } else {
        self.flow.initBuiltins([...libs, 'try-lib.js']);
      }
      versionCache[version] = self.flow;
      return flow;
    })
    .catch(function(err) {
      throw err;
    });
}