[dart2wasm] Move entrypoint into the lib directory.
This CL will make it easier to consume `dart2wasm` as a library. Specifically, users can import `package:dart2wasm/dart2wasm.dart`, and call `main` from Dart libraries. Change-Id: I9f5d5ab539677af2604df9d4b0e1e2d82db7485f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/300780 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Ömer Ağacan <omersa@google.com>
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Joshua Litt
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e82a5a2ff3
@@ -2,145 +2,6 @@
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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:dart2wasm/dart2wasm.dart' as dart2wasm;
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import 'package:args/args.dart' as args;
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import 'package:front_end/src/api_unstable/vm.dart'
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show printDiagnosticMessage, resolveInputUri;
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import 'package:front_end/src/api_unstable/vm.dart' as fe;
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import 'package:dart2wasm/compile.dart';
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import 'package:dart2wasm/compiler_options.dart';
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import 'package:dart2wasm/option.dart';
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// Used to allow us to keep defaults on their respective option structs.
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final CompilerOptions _d = CompilerOptions.defaultOptions();
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final List<Option> options = [
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Flag("help", (o, _) {}, abbr: "h", negatable: false, defaultsTo: false),
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Flag("export-all", (o, value) => o.translatorOptions.exportAll = value,
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defaultsTo: _d.translatorOptions.exportAll),
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Flag("import-shared-memory",
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(o, value) => o.translatorOptions.importSharedMemory = value,
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defaultsTo: _d.translatorOptions.importSharedMemory),
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Flag("inlining", (o, value) => o.translatorOptions.inlining = value,
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defaultsTo: _d.translatorOptions.inlining),
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Flag("name-section", (o, value) => o.translatorOptions.nameSection = value,
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defaultsTo: _d.translatorOptions.nameSection),
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Flag("polymorphic-specialization",
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(o, value) => o.translatorOptions.polymorphicSpecialization = value,
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defaultsTo: _d.translatorOptions.polymorphicSpecialization),
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Flag("print-kernel", (o, value) => o.translatorOptions.printKernel = value,
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defaultsTo: _d.translatorOptions.printKernel),
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Flag("print-wasm", (o, value) => o.translatorOptions.printWasm = value,
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defaultsTo: _d.translatorOptions.printWasm),
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Flag(
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"enable-asserts", (o, value) => o.translatorOptions.enableAsserts = value,
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defaultsTo: _d.translatorOptions.enableAsserts),
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Flag("constant-branch-pruning", (o, value) => o.constantBranchPruning = value,
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defaultsTo: _d.constantBranchPruning),
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Flag("omit-type-checks",
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(o, value) => o.translatorOptions.omitTypeChecks = value,
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defaultsTo: _d.translatorOptions.omitTypeChecks),
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IntOption(
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"inlining-limit", (o, value) => o.translatorOptions.inliningLimit = value,
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defaultsTo: "${_d.translatorOptions.inliningLimit}"),
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IntOption("shared-memory-max-pages",
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(o, value) => o.translatorOptions.sharedMemoryMaxPages = value),
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UriOption("dart-sdk", (o, value) => o.sdkPath = value,
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defaultsTo: "${_d.sdkPath}"),
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UriOption("packages", (o, value) => o.packagesPath = value),
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UriOption("libraries-spec", (o, value) => o.librariesSpecPath = value),
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UriOption("platform", (o, value) => o.platformPath = value),
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IntMultiOption(
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"watch", (o, values) => o.translatorOptions.watchPoints = values),
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StringMultiOption(
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"define", (o, values) => o.environment = processEnvironment(values),
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abbr: "D"),
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StringMultiOption(
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"enable-experiment",
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(o, values) =>
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o.feExperimentalFlags = processFeExperimentalFlags(values)),
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StringOption("multi-root-scheme", (o, value) => o.multiRootScheme = value),
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UriMultiOption("multi-root", (o, values) => o.multiRoots = values),
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StringOption("depfile", (o, value) => o.depFile = value),
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StringOption(
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"js-runtime-output", (o, value) => o.outputJSRuntimeFile = value),
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];
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Map<fe.ExperimentalFlag, bool> processFeExperimentalFlags(
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List<String> experiments) =>
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fe.parseExperimentalFlags(fe.parseExperimentalArguments(experiments),
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onError: (error) => throw ArgumentError(error),
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onWarning: (warning) => print(warning));
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Map<String, String> processEnvironment(List<String> defines) =>
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Map<String, String>.fromEntries(defines.map((d) {
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List<String> keyAndValue = d.split('=');
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if (keyAndValue.length != 2) {
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throw ArgumentError('Bad define string: $d');
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}
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return MapEntry<String, String>(keyAndValue[0], keyAndValue[1]);
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}));
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CompilerOptions parseArguments(List<String> arguments) {
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args.ArgParser parser = args.ArgParser();
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for (Option arg in options) {
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arg.applyToParser(parser);
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}
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Never usage() {
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print("Usage: dart2wasm [<options>] <infile.dart> <outfile.wasm>");
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print("");
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print("*NOTE*: Wasm compilation is experimental.");
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print("The support may change, or be removed, with no advance notice.");
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print("");
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print("Options:");
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for (String line in parser.usage.split('\n')) {
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print('\t$line');
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}
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exit(64);
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}
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try {
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args.ArgResults results = parser.parse(arguments);
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if (results['help']) {
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usage();
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}
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List<String> rest = results.rest;
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if (rest.length != 2) {
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throw ArgumentError('Requires two positional file arguments');
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}
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CompilerOptions compilerOptions =
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CompilerOptions(mainUri: resolveInputUri(rest[0]), outputFile: rest[1]);
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for (Option arg in options) {
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if (results.wasParsed(arg.name)) {
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arg.applyToOptions(compilerOptions, results[arg.name]);
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}
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}
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return compilerOptions;
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} catch (e, s) {
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print(s);
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print('Argument Error: ' + e.toString());
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usage();
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}
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}
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Future<int> main(List<String> args) async {
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CompilerOptions options = parseArguments(args);
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CompilerOutput? output = await compileToModule(
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options, (message) => printDiagnosticMessage(message, print));
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if (output == null) {
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exitCode = 1;
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return exitCode;
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}
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await File(options.outputFile).writeAsBytes(output.wasmModule);
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final String outputJSRuntimeFile = options.outputJSRuntimeFile ??
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'${options.outputFile.substring(0, options.outputFile.lastIndexOf('.'))}.mjs';
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await File(outputJSRuntimeFile).writeAsString(output.jsRuntime);
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return 0;
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}
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Future<int> main(List<String> args) async => await dart2wasm.main(args);
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@@ -0,0 +1,146 @@
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// Copyright (c) 2023, 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:args/args.dart' as args;
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import 'package:front_end/src/api_unstable/vm.dart'
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show printDiagnosticMessage, resolveInputUri;
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import 'package:front_end/src/api_unstable/vm.dart' as fe;
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import 'package:dart2wasm/compile.dart';
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import 'package:dart2wasm/compiler_options.dart';
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import 'package:dart2wasm/option.dart';
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// Used to allow us to keep defaults on their respective option structs.
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final CompilerOptions _d = CompilerOptions.defaultOptions();
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final List<Option> options = [
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Flag("help", (o, _) {}, abbr: "h", negatable: false, defaultsTo: false),
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Flag("export-all", (o, value) => o.translatorOptions.exportAll = value,
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defaultsTo: _d.translatorOptions.exportAll),
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Flag("import-shared-memory",
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(o, value) => o.translatorOptions.importSharedMemory = value,
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defaultsTo: _d.translatorOptions.importSharedMemory),
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Flag("inlining", (o, value) => o.translatorOptions.inlining = value,
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defaultsTo: _d.translatorOptions.inlining),
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Flag("name-section", (o, value) => o.translatorOptions.nameSection = value,
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defaultsTo: _d.translatorOptions.nameSection),
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Flag("polymorphic-specialization",
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(o, value) => o.translatorOptions.polymorphicSpecialization = value,
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defaultsTo: _d.translatorOptions.polymorphicSpecialization),
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Flag("print-kernel", (o, value) => o.translatorOptions.printKernel = value,
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defaultsTo: _d.translatorOptions.printKernel),
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Flag("print-wasm", (o, value) => o.translatorOptions.printWasm = value,
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defaultsTo: _d.translatorOptions.printWasm),
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Flag(
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"enable-asserts", (o, value) => o.translatorOptions.enableAsserts = value,
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defaultsTo: _d.translatorOptions.enableAsserts),
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Flag("constant-branch-pruning", (o, value) => o.constantBranchPruning = value,
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defaultsTo: _d.constantBranchPruning),
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Flag("omit-type-checks",
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(o, value) => o.translatorOptions.omitTypeChecks = value,
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defaultsTo: _d.translatorOptions.omitTypeChecks),
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IntOption(
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"inlining-limit", (o, value) => o.translatorOptions.inliningLimit = value,
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defaultsTo: "${_d.translatorOptions.inliningLimit}"),
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IntOption("shared-memory-max-pages",
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(o, value) => o.translatorOptions.sharedMemoryMaxPages = value),
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UriOption("dart-sdk", (o, value) => o.sdkPath = value,
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defaultsTo: "${_d.sdkPath}"),
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UriOption("packages", (o, value) => o.packagesPath = value),
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UriOption("libraries-spec", (o, value) => o.librariesSpecPath = value),
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UriOption("platform", (o, value) => o.platformPath = value),
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IntMultiOption(
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"watch", (o, values) => o.translatorOptions.watchPoints = values),
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StringMultiOption(
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"define", (o, values) => o.environment = processEnvironment(values),
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abbr: "D"),
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StringMultiOption(
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"enable-experiment",
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(o, values) =>
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o.feExperimentalFlags = processFeExperimentalFlags(values)),
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StringOption("multi-root-scheme", (o, value) => o.multiRootScheme = value),
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UriMultiOption("multi-root", (o, values) => o.multiRoots = values),
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StringOption("depfile", (o, value) => o.depFile = value),
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StringOption(
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"js-runtime-output", (o, value) => o.outputJSRuntimeFile = value),
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];
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Map<fe.ExperimentalFlag, bool> processFeExperimentalFlags(
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List<String> experiments) =>
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fe.parseExperimentalFlags(fe.parseExperimentalArguments(experiments),
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onError: (error) => throw ArgumentError(error),
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onWarning: (warning) => print(warning));
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Map<String, String> processEnvironment(List<String> defines) =>
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Map<String, String>.fromEntries(defines.map((d) {
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List<String> keyAndValue = d.split('=');
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if (keyAndValue.length != 2) {
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throw ArgumentError('Bad define string: $d');
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}
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return MapEntry<String, String>(keyAndValue[0], keyAndValue[1]);
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}));
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CompilerOptions parseArguments(List<String> arguments) {
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args.ArgParser parser = args.ArgParser();
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for (Option arg in options) {
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arg.applyToParser(parser);
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}
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Never usage() {
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print("Usage: dart2wasm [<options>] <infile.dart> <outfile.wasm>");
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print("");
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print("*NOTE*: Wasm compilation is experimental.");
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print("The support may change, or be removed, with no advance notice.");
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print("");
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print("Options:");
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for (String line in parser.usage.split('\n')) {
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print('\t$line');
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}
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exit(64);
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}
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try {
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args.ArgResults results = parser.parse(arguments);
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if (results['help']) {
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usage();
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}
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List<String> rest = results.rest;
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if (rest.length != 2) {
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throw ArgumentError('Requires two positional file arguments');
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}
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CompilerOptions compilerOptions =
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CompilerOptions(mainUri: resolveInputUri(rest[0]), outputFile: rest[1]);
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for (Option arg in options) {
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if (results.wasParsed(arg.name)) {
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arg.applyToOptions(compilerOptions, results[arg.name]);
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}
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}
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return compilerOptions;
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} catch (e, s) {
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print(s);
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print('Argument Error: ' + e.toString());
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usage();
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}
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}
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Future<int> main(List<String> args) async {
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CompilerOptions options = parseArguments(args);
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CompilerOutput? output = await compileToModule(
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options, (message) => printDiagnosticMessage(message, print));
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if (output == null) {
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exitCode = 1;
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return exitCode;
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}
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await File(options.outputFile).writeAsBytes(output.wasmModule);
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final String outputJSRuntimeFile = options.outputJSRuntimeFile ??
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'${options.outputFile.substring(0, options.outputFile.lastIndexOf('.'))}.mjs';
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await File(outputJSRuntimeFile).writeAsString(output.jsRuntime);
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return 0;
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}
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