Reorganize tool/input_sdk/private

tool/input_sdk/private/utils.dart

Index: tool/input_sdk/private/utils.dart
diff --git a/tool/input_sdk/private/utils.dart b/tool/input_sdk/private/utils.dart
deleted file mode 100644
index a04c780a4f52035ca05c6e549b438b9c2bbce4ae..0000000000000000000000000000000000000000
--- a/tool/input_sdk/private/utils.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-part of dart._runtime;
-
-/// This library defines a set of general javascript utilities for us
-/// by the Dart runtime.
-// TODO(ochafik): Rewrite some of these in Dart when possible.
-
-final defineProperty = JS('', 'Object.defineProperty');
-final getOwnPropertyDescriptor = JS('', 'Object.getOwnPropertyDescriptor');
-final getOwnPropertyNames = JS('', 'Object.getOwnPropertyNames');
-final getOwnPropertySymbols = JS('', 'Object.getOwnPropertySymbols');
-
-final hasOwnProperty = JS('', 'Object.prototype.hasOwnProperty');
-
-// TODO(ochafik): Add ES6 class syntax support to JS intrinsics to avoid this.
-final StrongModeError = JS('', '''(function() {
-  function StrongModeError(message) {
-    Error.call(this);
-    this.message = message;
-  };
-  Object.setPrototypeOf(StrongModeError.prototype, Error.prototype);
-  return StrongModeError;
-})()''');
-
-/// This error indicates a strong mode specific failure.
-void throwStrongModeError(String message) => JS('', '''(() => {
-  throw new $StrongModeError($message);
-})()''');
-
-/// This error indicates a bug in the runtime or the compiler.
-void throwInternalError(String message) => JS('', '''(() => {
-  throw Error($message);
-})()''');
-
-getOwnNamesAndSymbols(obj) => JS('', '''(() => {
-  return $getOwnPropertyNames($obj).concat($getOwnPropertySymbols($obj));
-})()''');
-
-safeGetOwnProperty(obj, String name) => JS('', '''(() => {
-  let desc = $getOwnPropertyDescriptor($obj, $name);
-  if (desc) return desc.value;
-})()''');
-
-/// Defines a lazy property.
-/// After initial get or set, it will replace itself with a value property.
-// TODO(jmesserly): reusing descriptor objects has been shown to improve
-// performance in other projects (e.g. webcomponents.js ShadowDOM polyfill).
-defineLazyProperty(to, name, desc) => JS('', '''(() => {
-  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;
-
-      // Compute and store the value, guarding against reentry.
-      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);
-})()''');
-
-void defineLazy(to, from) => JS('', '''(() => {
-  for (let name of $getOwnNamesAndSymbols($from)) {
-    $defineLazyProperty($to, name, $getOwnPropertyDescriptor($from, name));
-  }
-})()''');
-
-defineMemoizedGetter(obj, String name, getter) => JS('', '''(() => {
-  return $defineLazyProperty($obj, $name, {get: $getter});
-})()''');
-
-copyTheseProperties(to, from, names) => JS('', '''(() => {
-  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;
-})()''');
-
-/// Copy properties from source to destination object.
-/// This operation is commonly called `mixin` in JS.
-copyProperties(to, from) => JS('', '''(() => {
-  return $copyTheseProperties($to, $from, $getOwnNamesAndSymbols($from));
-})()''');
-
-/// Exports from one Dart module to another.
-@JSExportName('export')
-export_(to, from, show, hide) => JS('', '''(() => {
-  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);
-})()''');