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// Copyright (c) 2019, 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.
/// Test the modular compilation pipeline of dart2js.
///
/// This is a shell that runs multiple tests, one per folder under `data/`.
import 'dart:io';
import 'dart:async';
import 'package:compiler/src/commandline_options.dart';
import 'package:front_end/src/compute_platform_binaries_location.dart'
show computePlatformBinariesLocation;
import 'package:modular_test/src/io_pipeline.dart';
import 'package:modular_test/src/pipeline.dart';
import 'package:modular_test/src/suite.dart';
import 'package:modular_test/src/runner.dart';
import 'package:package_config/package_config.dart';
String packageConfigJsonPath = ".dart_tool/package_config.json";
Uri sdkRoot = Platform.script.resolve("../../../");
Uri packageConfigUri = sdkRoot.resolve(packageConfigJsonPath);
Options _options;
String _dart2jsScript;
String _kernelWorkerScript;
// TODO(joshualitt): Figure out a way to support package configs in
// tests/modular.
PackageConfig _packageConfig;
main(List<String> args) async {
_options = Options.parse(args);
_packageConfig = await loadPackageConfigUri(packageConfigUri);
await _resolveScripts();
await Future.wait([
runSuite(
sdkRoot.resolve('tests/modular/'),
'tests/modular',
_options,
new IOPipeline([
SourceToDillStep(),
ComputeClosedWorldStep(),
GlobalAnalysisStep(),
Dart2jsCodegenStep(codeId0),
Dart2jsCodegenStep(codeId1),
Dart2jsEmissionStep(),
RunD8(),
], cacheSharedModules: true)),
// TODO(joshualitt) Delete this when we stop supporting this way of running
// the compiler.
runSuite(
sdkRoot.resolve('tests/modular/'),
'tests/modular',
_options,
new IOPipeline([
SourceToDillStep(),
ComputeClosedWorldStep(),
LegacyGlobalAnalysisStep(),
LegacyDart2jsCodegenStep(codeId0),
LegacyDart2jsCodegenStep(codeId1),
LegacyDart2jsEmissionStep(),
RunD8(),
], cacheSharedModules: true)),
]);
}
const dillId = const DataId("dill");
const updatedDillId = const DataId("udill");
const closedWorldId = const DataId("world");
const globalDataId = const DataId("gdata");
const codeId = const ShardsDataId("code", 2);
const codeId0 = const ShardDataId(codeId, 0);
const codeId1 = const ShardDataId(codeId, 1);
const jsId = const DataId("js");
const txtId = const DataId("txt");
String _packageConfigEntry(String name, Uri root,
{Uri packageRoot, LanguageVersion version}) {
var fields = [
'"name": "${name}"',
'"rootUri": "$root"',
if (packageRoot != null) '"packageUri": "$packageRoot"',
if (version != null) '"languageVersion": "$version"'
];
return '{${fields.join(',')}}';
}
// Step that compiles sources in a module to a .dill file.
class SourceToDillStep implements IOModularStep {
@override
List<DataId> get resultData => const [dillId];
@override
bool get needsSources => true;
@override
List<DataId> get dependencyDataNeeded => const [dillId];
@override
List<DataId> get moduleDataNeeded => const [];
@override
bool get onlyOnMain => false;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: source-to-dill on $module");
// We use non file-URI schemes for representeing source locations in a
// root-agnostic way. This allows us to refer to file across modules and
// across steps without exposing the underlying temporary folders that are
// created by the framework. In build systems like bazel this is especially
// important because each step may be run on a different machine.
//
// Files in packages are defined in terms of `package:` URIs, while
// non-package URIs are defined using the `dart-dev-app` scheme.
String rootScheme = module.isSdk ? 'dart-dev-sdk' : 'dev-dart-app';
String sourceToImportUri(Uri relativeUri) {
if (module.isPackage) {
var basePath = module.packageBase.path;
var packageRelativePath = basePath == "./"
? relativeUri.path
: relativeUri.path.substring(basePath.length);
return 'package:${module.name}/$packageRelativePath';
} else {
return '$rootScheme:/$relativeUri';
}
}
// We create both a .packages and package_config.json file which defines
// the location of this module if it is a package. The CFE requires that
// if a `package:` URI of a dependency is used in an import, then we need
// that package entry in the associated file. However, after it checks that
// the definition exists, the CFE will not actually use the resolved URI if
// a library for the import URI is already found in one of the provide
// .dill files of the dependencies. For that reason, and to ensure that
// a step only has access to the files provided in a module, we generate a
// config file with invalid folders for other packages.
// TODO(sigmund): follow up with the CFE to see if we can remove the need
// for these dummy entries..
// TODO(joshualitt): Generate just the json file.
var packagesJson = [];
var packagesContents = new StringBuffer();
if (module.isPackage) {
packagesContents.write('${module.name}:${module.packageBase}\n');
packagesJson.add(_packageConfigEntry(
module.name, Uri.parse('../${module.packageBase}')));
}
Set<Module> transitiveDependencies = computeTransitiveDependencies(module);
int unusedNum = 0;
for (Module dependency in transitiveDependencies) {
if (dependency.isPackage) {
// rootUri should be ignored for dependent modules, so we pass in a
// bogus value.
var rootUri = Uri.parse('unused$unusedNum');
unusedNum++;
var dependentPackage = _packageConfig[dependency.name];
var packageJson = dependentPackage == null
? _packageConfigEntry(dependency.name, rootUri)
: _packageConfigEntry(dependentPackage.name, rootUri,
version: dependentPackage.languageVersion);
packagesJson.add(packageJson);
packagesContents.write('${dependency.name}:$rootUri\n');
}
}
if (module.isPackage) {
await File.fromUri(root.resolve(packageConfigJsonPath))
.create(recursive: true);
await File.fromUri(root.resolve(packageConfigJsonPath)).writeAsString('{'
' "configVersion": ${_packageConfig.version},'
' "packages": [ ${packagesJson.join(',')} ]'
'}');
}
await File.fromUri(root.resolve('.packages'))
.writeAsString('$packagesContents');
List<String> sources;
List<String> extraArgs;
if (module.isSdk) {
// When no flags are passed, we can skip compilation and reuse the
// platform.dill created by build.py.
if (flags.isEmpty) {
var platform =
computePlatformBinariesLocation().resolve("dart2js_platform.dill");
var destination = root.resolveUri(toUri(module, dillId));
if (_options.verbose) {
print('command:\ncp $platform $destination');
}
await File.fromUri(platform).copy(destination.toFilePath());
return;
}
sources = ['dart:core'];
extraArgs = ['--libraries-file', '$rootScheme:///sdk/lib/libraries.json'];
assert(transitiveDependencies.isEmpty);
} else {
sources = module.sources.map(sourceToImportUri).toList();
extraArgs = ['--packages-file', '$rootScheme:/.packages'];
}
// TODO(joshualitt): Ensure the kernel worker has some way to specify
// --no-sound-null-safety
List<String> args = [
_kernelWorkerScript,
'--no-summary-only',
'--target',
'dart2js',
'--multi-root',
'$root',
'--multi-root-scheme',
rootScheme,
...extraArgs,
'--output',
'${toUri(module, dillId)}',
...(transitiveDependencies
.expand((m) => ['--input-linked', '${toUri(m, dillId)}'])),
...(sources.expand((String uri) => ['--source', uri])),
...(flags.expand((String flag) => ['--enable-experiment', flag])),
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("\ncached step: source-to-dill on $module");
}
}
// Step that invokes the dart2js closed world computation.
class ComputeClosedWorldStep implements IOModularStep {
@override
List<DataId> get resultData => const [closedWorldId, updatedDillId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [dillId];
@override
List<DataId> get moduleDataNeeded => const [dillId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose)
print("\nstep: dart2js compute closed world on $module");
Set<Module> transitiveDependencies = computeTransitiveDependencies(module);
Iterable<String> dillDependencies =
transitiveDependencies.map((m) => '${toUri(m, dillId)}');
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
// TODO(sigmund): remove this dependency on libraries.json
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, dillId)}',
for (String flag in flags) '--enable-experiment=$flag',
'${Flags.dillDependencies}=${dillDependencies.join(',')}',
'${Flags.writeClosedWorld}=${toUri(module, closedWorldId)}',
'--out=${toUri(module, updatedDillId)}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose)
print("\ncached step: dart2js compute closed world on $module");
}
}
// Step that invokes the dart2js global analysis on the main module by providing
// the .dill files of all transitive modules as inputs.
class GlobalAnalysisStep implements IOModularStep {
@override
List<DataId> get resultData => const [globalDataId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [updatedDillId];
@override
List<DataId> get moduleDataNeeded => const [closedWorldId, updatedDillId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: dart2js global analysis on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
// TODO(sigmund): remove this dependency on libraries.json
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '--enable-experiment=$flag',
'${Flags.readClosedWorld}=${toUri(module, closedWorldId)}',
'${Flags.writeData}=${toUri(module, globalDataId)}',
// TODO(joshualitt): delete this flag after google3 roll
'${Flags.noClosedWorldInData}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose)
print("\ncached step: dart2js global analysis on $module");
}
}
// Step that invokes the dart2js code generation on the main module given the
// results of the global analysis step and produces one shard of the codegen
// output.
class Dart2jsCodegenStep implements IOModularStep {
final ShardDataId codeId;
Dart2jsCodegenStep(this.codeId);
@override
List<DataId> get resultData => [codeId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [];
@override
List<DataId> get moduleDataNeeded =>
const [updatedDillId, closedWorldId, globalDataId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: dart2js backend on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '--enable-experiment=$flag',
'${Flags.readClosedWorld}=${toUri(module, closedWorldId)}',
'${Flags.readData}=${toUri(module, globalDataId)}',
'${Flags.writeCodegen}=${toUri(module, codeId.dataId)}',
'${Flags.codegenShard}=${codeId.shard}',
'${Flags.codegenShards}=${codeId.dataId.shards}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("cached step: dart2js backend on $module");
}
}
// Step that invokes the dart2js codegen enqueuer and emitter on the main module
// given the results of the global analysis step and codegen shards.
class Dart2jsEmissionStep implements IOModularStep {
@override
List<DataId> get resultData => const [jsId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [];
@override
List<DataId> get moduleDataNeeded =>
const [updatedDillId, closedWorldId, globalDataId, codeId0, codeId1];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("step: dart2js backend on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '${Flags.enableLanguageExperiments}=$flag',
'${Flags.readClosedWorld}=${toUri(module, closedWorldId)}',
'${Flags.readData}=${toUri(module, globalDataId)}',
'${Flags.readCodegen}=${toUri(module, codeId)}',
'${Flags.codegenShards}=${codeId.shards}',
'--out=${toUri(module, jsId)}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("\ncached step: dart2js backend on $module");
}
}
// TODO(joshualitt): delete after google3 roll.
class LegacyGlobalAnalysisStep implements IOModularStep {
@override
List<DataId> get resultData => const [globalDataId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [updatedDillId];
@override
List<DataId> get moduleDataNeeded => const [closedWorldId, updatedDillId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: dart2js global analysis on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
// TODO(sigmund): remove this dependency on libraries.json
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '--enable-experiment=$flag',
'${Flags.readClosedWorld}=${toUri(module, closedWorldId)}',
'${Flags.writeData}=${toUri(module, globalDataId)}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose)
print("\ncached step: dart2js global analysis on $module");
}
}
// Step that invokes the dart2js code generation on the main module given the
// results of the global analysis step and produces one shard of the codegen
// output.
// Note: Legacy.
class LegacyDart2jsCodegenStep implements IOModularStep {
final ShardDataId codeId;
LegacyDart2jsCodegenStep(this.codeId);
@override
List<DataId> get resultData => [codeId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [];
@override
List<DataId> get moduleDataNeeded => const [updatedDillId, globalDataId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: dart2js backend on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '--enable-experiment=$flag',
'${Flags.readData}=${toUri(module, globalDataId)}',
'${Flags.writeCodegen}=${toUri(module, codeId.dataId)}',
'${Flags.codegenShard}=${codeId.shard}',
'${Flags.codegenShards}=${codeId.dataId.shards}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("cached step: dart2js backend on $module");
}
}
// Step that invokes the dart2js codegen enqueuer and emitter on the main module
// given the results of the global analysis step and codegen shards.
// Note: Legacy.
class LegacyDart2jsEmissionStep implements IOModularStep {
@override
List<DataId> get resultData => const [jsId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [];
@override
List<DataId> get moduleDataNeeded =>
const [updatedDillId, globalDataId, codeId0, codeId1];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("step: dart2js backend on $module");
List<String> args = [
'--packages=${sdkRoot.toFilePath()}/.packages',
_dart2jsScript,
if (_options.useSdk) '--libraries-spec=$_librarySpecForSnapshot',
'${toUri(module, updatedDillId)}',
for (String flag in flags) '${Flags.enableLanguageExperiments}=$flag',
'${Flags.readData}=${toUri(module, globalDataId)}',
'${Flags.readCodegen}=${toUri(module, codeId)}',
'${Flags.codegenShards}=${codeId.shards}',
'--out=${toUri(module, jsId)}',
];
var result =
await _runProcess(Platform.resolvedExecutable, args, root.toFilePath());
_checkExitCode(result, this, module);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("\ncached step: dart2js backend on $module");
}
}
/// Step that runs the output of dart2js in d8 and saves the output.
class RunD8 implements IOModularStep {
@override
List<DataId> get resultData => const [txtId];
@override
bool get needsSources => false;
@override
List<DataId> get dependencyDataNeeded => const [];
@override
List<DataId> get moduleDataNeeded => const [jsId];
@override
bool get onlyOnMain => true;
@override
Future<void> execute(Module module, Uri root, ModuleDataToRelativeUri toUri,
List<String> flags) async {
if (_options.verbose) print("\nstep: d8 on $module");
List<String> d8Args = [
sdkRoot
.resolve('sdk/lib/_internal/js_runtime/lib/preambles/d8.js')
.toFilePath(),
root.resolveUri(toUri(module, jsId)).toFilePath(),
];
var result = await _runProcess(
sdkRoot.resolve(_d8executable).toFilePath(), d8Args, root.toFilePath());
_checkExitCode(result, this, module);
await File.fromUri(root.resolveUri(toUri(module, txtId)))
.writeAsString(result.stdout);
}
@override
void notifyCached(Module module) {
if (_options.verbose) print("\ncached step: d8 on $module");
}
}
void _checkExitCode(ProcessResult result, IOModularStep step, Module module) {
if (result.exitCode != 0 || _options.verbose) {
stdout.write(result.stdout);
stderr.write(result.stderr);
}
if (result.exitCode != 0) {
throw "${step.runtimeType} failed on $module:\n\n"
"stdout:\n${result.stdout}\n\n"
"stderr:\n${result.stderr}";
}
}
Future<ProcessResult> _runProcess(
String command, List<String> arguments, String workingDirectory) {
if (_options.verbose) {
print('command:\n$command ${arguments.join(' ')} from $workingDirectory');
}
return Process.run(command, arguments, workingDirectory: workingDirectory);
}
String get _d8executable {
if (Platform.isWindows) {
return 'third_party/d8/windows/d8.exe';
} else if (Platform.isLinux) {
return 'third_party/d8/linux/d8';
} else if (Platform.isMacOS) {
return 'third_party/d8/macos/d8';
}
throw new UnsupportedError('Unsupported platform.');
}
class ShardsDataId implements DataId {
@override
final String name;
final int shards;
const ShardsDataId(this.name, this.shards);
@override
String toString() => name;
}
class ShardDataId implements DataId {
final ShardsDataId dataId;
final int _shard;
const ShardDataId(this.dataId, this._shard);
int get shard {
assert(0 <= _shard && _shard < dataId.shards);
return _shard;
}
@override
String get name => '${dataId.name}${shard}';
@override
String toString() => name;
}
Future<void> _resolveScripts() async {
Future<String> resolve(
String sourceUriOrPath, String relativeSnapshotPath) async {
Uri sourceUri = sdkRoot.resolve(sourceUriOrPath);
String result =
sourceUri.scheme == 'file' ? sourceUri.toFilePath() : sourceUriOrPath;
if (_options.useSdk) {
String snapshot = Uri.file(Platform.resolvedExecutable)
.resolve(relativeSnapshotPath)
.toFilePath();
if (await File(snapshot).exists()) {
return snapshot;
}
}
return result;
}
_dart2jsScript = await resolve(
'package:compiler/src/dart2js.dart', 'snapshots/dart2js.dart.snapshot');
_kernelWorkerScript = await resolve('utils/bazel/kernel_worker.dart',
'snapshots/kernel_worker.dart.snapshot');
}
String _librarySpecForSnapshot = Uri.file(Platform.resolvedExecutable)
.resolve('../lib/libraries.json')
.toFilePath();