Generate all runtime files from dart.

lib/runtime/dart/_utils.js

-dart_library.library('dart/_utils', null, /* Imports */[
-], /* Lazy imports */[
-], function(exports, dart) {
-  'use strict';
-  const defineProperty = Object.defineProperty;
-  const getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
-  const getOwnPropertyNames = Object.getOwnPropertyNames;
-  const getOwnPropertySymbols = Object.getOwnPropertySymbols;
-  const hasOwnProperty = Object.prototype.hasOwnProperty;
-  const StrongModeError = (function() {
-    function StrongModeError(message) {
-      Error.call(this);
-      this.message = message;
-    }
-    ;
-    Object.setPrototypeOf(StrongModeError.prototype, Error.prototype);
-    return StrongModeError;
-  })();
-  function throwStrongModeError(message) {
-    throw new StrongModeError(message);
-  }
-  function throwInternalError(message) {
-    throw Error(message);
-  }
-  function assert(condition) {
-    if (!condition) throwInternalError("The compiler is broken: failed assert");
-  }
-  function getOwnNamesAndSymbols(obj) {
-    return getOwnPropertyNames(obj).concat(getOwnPropertySymbols(obj));
-  }
-  function safeGetOwnProperty(obj, name) {
-    let desc = getOwnPropertyDescriptor(obj, name);
-    if (desc) return desc.value;
-  }
-  function defineLazyProperty(to, name, desc) {
-    let init = desc.get;
-    let value = null;
-    function lazySetter(x) {
-      init = null;
-      value = x;
-    }
-    function circularInitError() {
-      throwInternalError('circular initialization for field ' + name);
-    }
-    function lazyGetter() {
-      if (init == null) return value;
-      let f = init;
-      init = circularInitError;
-      lazySetter(f());
-      return value;
-    }
-    desc.get = lazyGetter;
-    desc.configurable = true;
-    if (desc.set) desc.set = lazySetter;
-    return defineProperty(to, name, desc);
-  }
-  function defineLazy(to, from) {
-    for (let name of getOwnNamesAndSymbols(from)) {
-      defineLazyProperty(to, name, getOwnPropertyDescriptor(from, name));
-    }
-  }
-  function defineMemoizedGetter(obj, name, getter) {
-    return defineLazyProperty(obj, name, {get: getter});
-  }
-  function copyTheseProperties(to, from, names) {
-    for (let name of names) {
-      var desc = getOwnPropertyDescriptor(from, name);
-      if (desc != void 0) {
-        defineProperty(to, name, desc);
-      } else {
-        defineLazyProperty(to, name, () => from[name]);
-      }
-    }
-    return to;
-  }
-  function copyProperties(to, from) {
-    return copyTheseProperties(to, from, getOwnNamesAndSymbols(from));
-  }
-  function export_(to, from, show, hide) {
-    if (show == void 0 || show.length == 0) {
-      show = getOwnNamesAndSymbols(from);
-    }
-    if (hide != void 0) {
-      var hideMap = new Set(hide);
-      show = show.filter(k => !hideMap.has(k));
-    }
-    return copyTheseProperties(to, from, show);
-  }
-  // Exports:
-  exports.defineProperty = defineProperty;
-  exports.getOwnPropertyDescriptor = getOwnPropertyDescriptor;
-  exports.getOwnPropertyNames = getOwnPropertyNames;
-  exports.getOwnPropertySymbols = getOwnPropertySymbols;
-  exports.hasOwnProperty = hasOwnProperty;
-  exports.StrongModeError = StrongModeError;
-  exports.throwStrongModeError = throwStrongModeError;
-  exports.throwInternalError = throwInternalError;
-  exports.assert = assert;
-  exports.getOwnNamesAndSymbols = getOwnNamesAndSymbols;
-  exports.safeGetOwnProperty = safeGetOwnProperty;
-  exports.defineLazyProperty = defineLazyProperty;
-  exports.defineLazy = defineLazy;
-  exports.defineMemoizedGetter = defineMemoizedGetter;
-  exports.copyTheseProperties = copyTheseProperties;
-  exports.copyProperties = copyProperties;
-  exports.export_ = export_;
-});