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Migrate samples/sample_extension to null safety

Browse source 
Closes https://github.com/dart-lang/sdk/issues/43711

Change-Id: I7628e4a6192efb26a12f8051b4fa87dfafabab9c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/180960
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This commit is contained in:
Alexander Markov 2021-01-25 20:06:43 +00:00 committed by commit-bot@chromium.org
parent f438d72387
commit 91b0f16663
7 changed files with 9 additions and 26 deletions
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11
samples/sample_extension/sample_asynchronous_extension.dart
View file

@ -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 = 2.9
library sample_asynchronous_extension;
import 'dart:async';
@ -12,15 +10,12 @@ import 'dart-ext:sample_extension';
// A class caches the native port used to call an asynchronous extension.
class RandomArray {
static SendPort _port;
static SendPort? _port;
Future<List<int>> randomArray(int seed, int length) {
var completer = new Completer<List<int>>();
var replyPort = new RawReceivePort();
var args = new List(3);
args[0] = seed;
args[1] = length;
args[2] = replyPort.sendPort;
var args = [seed, length, replyPort.sendPort];
_servicePort.send(args);
replyPort.handler = (result) {
replyPort.close();
@ -37,7 +32,7 @@ class RandomArray {
if (_port == null) {
_port = _newServicePort();
}
return _port;
return _port!;
}
SendPort _newServicePort() native "RandomArray_ServicePort";

2
samples/sample_extension/sample_synchronous_extension.dart
View file

@ -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 = 2.9
library sample_synchronous_extension;
import 'dart-ext:sample_extension';

2
samples/sample_extension/test/sample_extension_app_snapshot_test.dart
View file

@ -4,8 +4,6 @@
//
// Dart test program for testing native extensions.
// @dart = 2.9
// OtherResources=../sample_synchronous_extension.dart
// OtherResources=../sample_asynchronous_extension.dart
// OtherResources=../test_sample_synchronous_extension.dart

2
samples/sample_extension/test/sample_extension_test.dart
View file

@ -4,8 +4,6 @@
//
// Dart test program for testing native extensions.
// @dart = 2.9
import 'sample_extension_test_helper.dart';
void main() {

6
samples/sample_extension/test/sample_extension_test_helper.dart
View file

@ -4,8 +4,6 @@
//
// Dart test program for testing native extensions.
// @dart = 2.9
import 'dart:async';
import 'dart:io';
import 'dart:isolate';
@ -26,7 +24,7 @@ Future copyFileToDirectory(String file, String directory) async {
result = await Process.run('cmd.exe', ['/C', 'copy $src $dst']);
break;
default:
Expect.fail('Unknown operating system ${Platform.operatingSystem}');
throw 'Unknown operating system ${Platform.operatingSystem}';
}
if (result.exitCode != 0) {
print(result.stdout);
@ -46,7 +44,7 @@ Future run(String program, List<String> arguments) async {
}
}
Future testNativeExtensions(String snapshotKind) async {
Future testNativeExtensions(String? snapshotKind) async {
String buildDirectory = dirname(Platform.executable);
Directory tempDirectory =
Directory.systemTemp.createTempSync('sample_extension_');

10
samples/sample_extension/test_sample_asynchronous_extension.dart
View file

@ -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 = 2.9
library test_sample_extension;
import 'sample_asynchronous_extension.dart';
@ -32,16 +30,16 @@ void main() {
void checkNormal(List l) {
// Count how many times each byte value occurs. Assert that the counts
// are all within a reasonable (six-sigma) range.
List counts = new List<int>.filled(256, 0);
List<int> counts = new List<int>.filled(256, 0);
for (var e in l) {
counts[e]++;
}
new RandomArray().randomArray(18, 256000).then(checkCorrelation(counts));
}
Function checkCorrelation(List counts) {
return (List l) {
List counts_2 = new List<int>.filled(256, 0);
dynamic Function(List<int>) checkCorrelation(List<int> counts) {
return (List<int> l) {
List<int> counts_2 = new List<int>.filled(256, 0);
for (var e in l) {
counts_2[e]++;
}

2
samples/sample_extension/test_sample_synchronous_extension.dart
View file

@ -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 = 2.9
library test_sample_extension;
import 'sample_synchronous_extension.dart';