Revert "Revert "Use native async/await support in pub.""

sdk/lib/_internal/pub_generated/lib/src/validator.dart

Index: sdk/lib/_internal/pub_generated/lib/src/validator.dart
diff --git a/sdk/lib/_internal/pub_generated/lib/src/validator.dart b/sdk/lib/_internal/pub_generated/lib/src/validator.dart
deleted file mode 100644
index 25e68435d3ba396519f991cf62f01fe9e55bc848..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub_generated/lib/src/validator.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2012, 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.
-
-library pub.validator;
-
-import 'dart:async';
-
-import 'entrypoint.dart';
-import 'log.dart' as log;
-import 'utils.dart';
-import 'validator/compiled_dartdoc.dart';
-import 'validator/dependency.dart';
-import 'validator/dependency_override.dart';
-import 'validator/directory.dart';
-import 'validator/executable.dart';
-import 'validator/license.dart';
-import 'validator/name.dart';
-import 'validator/pubspec_field.dart';
-import 'validator/sdk_constraint.dart';
-import 'validator/size.dart';
-import 'validator/utf8_readme.dart';
-
-/// The base class for validators that check whether a package is fit for
-/// uploading.
-///
-/// Each validator should override [errors], [warnings], or both to return
-/// lists of errors or warnings to display to the user. Errors will cause the
-/// package not to be uploaded; warnings will require the user to confirm the
-/// upload.
-abstract class Validator {
-  /// The entrypoint that's being validated.
-  final Entrypoint entrypoint;
-
-  /// The accumulated errors for this validator.
-  ///
-  /// Filled by calling [validate].
-  final errors = <String>[];
-
-  /// The accumulated warnings for this validator.
-  ///
-  /// Filled by calling [validate].
-  final warnings = <String>[];
-
-  Validator(this.entrypoint);
-
-  /// Validates the entrypoint, adding any errors and warnings to [errors] and
-  /// [warnings], respectively.
-  Future validate();
-
-  /// Run all validators on the [entrypoint] package and print their results.
-  ///
-  /// The future completes with the error and warning messages, respectively.
-  ///
-  /// [packageSize], if passed, should complete to the size of the tarred
-  /// package, in bytes. This is used to validate that it's not too big to
-  /// upload to the server.
-  static Future<Pair<List<String>, List<String>>> runAll(Entrypoint entrypoint,
-      [Future<int> packageSize]) {
-    var validators = [
-        new LicenseValidator(entrypoint),
-        new NameValidator(entrypoint),
-        new PubspecFieldValidator(entrypoint),
-        new DependencyValidator(entrypoint),
-        new DependencyOverrideValidator(entrypoint),
-        new DirectoryValidator(entrypoint),
-        new ExecutableValidator(entrypoint),
-        new CompiledDartdocValidator(entrypoint),
-        new Utf8ReadmeValidator(entrypoint),
-        new SdkConstraintValidator(entrypoint)];
-    if (packageSize != null) {
-      validators.add(new SizeValidator(entrypoint, packageSize));
-    }
-
-    return Future.wait(
-        validators.map((validator) => validator.validate())).then((_) {
-      var errors = flatten(validators.map((validator) => validator.errors));
-      var warnings = flatten(validators.map((validator) => validator.warnings));
-
-      if (!errors.isEmpty) {
-        log.error("Missing requirements:");
-        for (var error in errors) {
-          log.error("* ${error.split('\n').join('\n  ')}");
-        }
-        log.error("");
-      }
-
-      if (!warnings.isEmpty) {
-        log.warning("Suggestions:");
-        for (var warning in warnings) {
-          log.warning("* ${warning.split('\n').join('\n  ')}");
-        }
-        log.warning("");
-      }
-
-      return new Pair<List<String>, List<String>>(errors, warnings);
-    });
-  }
-}