Johnni Winther
097a511d9f
Change-Id: I1fffd60eeb14ecd6d5ba30cd584a75ddd4a8acfc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/212005 Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Jens Johansen <jensj@google.com>
43 lines
1.3 KiB
Dart
43 lines
1.3 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:io' show BytesBuilder;
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import 'package:kernel/binary/ast_to_binary.dart' show BinaryPrinter;
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import 'package:kernel/kernel.dart';
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export 'package:kernel/kernel.dart';
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Library libRoundTrip(Library lib) {
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return serializationRoundTrip([lib])[0];
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}
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List<Library> serializationRoundTrip(List<Library> libraries) {
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Component c = new Component(libraries: libraries)
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..setMainMethodAndMode(
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null, false, libraries.first.nonNullableByDefaultCompiledMode);
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List<int> bytes = serializeComponent(c);
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Component c2 = loadComponentFromBytes(bytes);
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return c2.libraries;
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}
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List<int> serializeComponent(Component c) {
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ByteSink byteSink = new ByteSink();
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BinaryPrinter printer = new BinaryPrinter(byteSink);
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printer.writeComponentFile(c);
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return byteSink.builder.takeBytes();
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}
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/// A [Sink] that directly writes data into a byte builder.
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class ByteSink implements Sink<List<int>> {
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final BytesBuilder builder = new BytesBuilder();
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@override
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void add(List<int> data) {
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builder.add(data);
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}
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@override
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void close() {}
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}
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