Alexander Markov
ac7ca17652
To enable bytecode generation, toggle kEnableKernelBytecode flag at the beginning of pkg/vm/lib/bytecode/gen_bytecode.dart. This will also enable generation of bytecode in platform dill files. Also, bytecode generation can be enabled using --gen-bytecode option of pkg/vm/tool/gen_kernel. In kernel binaries, the generated bytecode and constant pool are placed into 'vm.bytecode' metadata attached to members. pkg/vm/tool/dump_kernel tool can be used to disassemble bytecode and print constant pool. Differences between generated bytecode and original DBC are described in pkg/vm/lib/bytecode/dbc.dart. Format of constant pool is described in pkg/vm/lib/bytecode/constant_pool.dart. Currently, only a small subset of Dart language is supported. Bytecode generator will not emit vm.bytecode metadata for a member if its body has an unsupported operation. Change-Id: I27d9a361dc779ea115e5676508ee757c1754e05d Reviewed-on: https://dart-review.googlesource.com/49600 Reviewed-by: Samir Jindel <sjindel@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Reviewed-by: Zach Anderson <zra@google.com> Reviewed-by: Régis Crelier <regis@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
37 lines
1.1 KiB
Dart
37 lines
1.1 KiB
Dart
// Copyright (c) 2018, 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';
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import 'package:kernel/ast.dart';
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import 'package:kernel/kernel.dart';
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import 'package:test/test.dart';
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import 'package:vm/bytecode/gen_bytecode.dart' show generateBytecode;
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import '../common_test_utils.dart';
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final String pkgVmDir = Platform.script.resolve('../..').toFilePath();
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runTestCase(Uri source) async {
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Component component = await compileTestCaseToKernelProgram(source);
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generateBytecode(component, strongMode: true);
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final actual = kernelLibraryToString(component.mainMethod.enclosingLibrary);
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compareResultWithExpectationsFile(source, actual);
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}
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main() {
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group('gen-bytecode', () {
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final testCasesDir = new Directory(pkgVmDir + '/testcases/bytecode');
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for (var entry
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in testCasesDir.listSync(recursive: true, followLinks: false)) {
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if (entry.path.endsWith(".dart")) {
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test(entry.path, () => runTestCase(entry.uri));
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}
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}
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});
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}
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