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[utils] - Migrate utils/bazel/kernel_worker.dart to sound null safety.

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Change-Id: Ie0b29463e87f857efcf89e8fd1fd4f1b560bf865
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/265940
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
This commit is contained in:
asiva 2022-10-26 22:44:47 +00:00 committed by Commit Queue
parent 027b0269d8
commit 397afd14de
1 changed files with 4 additions and 6 deletions
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10
utils/bazel/kernel_worker.dart
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@ -2,8 +2,6 @@
// 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.
// @dart = 2.8
/// A tool that invokes the CFE to compute kernel summary files.
///
/// This script can be used as a command-line command or a persistent server.
@ -21,7 +19,7 @@ import 'package:frontend_server/compute_kernel.dart';
/// [sendPort] may be passed in when started in an isolate. If provided, it is
/// used for bazel worker communication instead of stdin/stdout.
main(List<String> args, SendPort sendPort) async {
main(List<String> args, SendPort? sendPort) async {
args = preprocessArgs(args);
if (args.contains('--persistent_worker')) {
@ -40,11 +38,11 @@ main(List<String> args, SendPort sendPort) async {
/// A bazel worker loop that can compute full or summary kernel files.
class KernelWorker extends AsyncWorkerLoop {
fe.InitializedCompilerState previousState;
fe.InitializedCompilerState? previousState;
/// If [sendPort] is provided it is used for bazel worker communication
/// instead of stdin/stdout.
KernelWorker({SendPort sendPort})
KernelWorker({SendPort? sendPort})
: super(
connection: sendPort == null
? null
@ -54,7 +52,7 @@ class KernelWorker extends AsyncWorkerLoop {
var outputBuffer = new StringBuffer();
var response = new WorkResponse()..exitCode = 0;
try {
fe.InitializedCompilerState previousStateToPass;
fe.InitializedCompilerState? previousStateToPass;
if (request.arguments.contains("--reuse-compiler-result")) {
previousStateToPass = previousState;
} else {