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Unified Diff: pkg/compiler/lib/src/dart2js.dart

Issue 693183006: Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: pkg/compiler/lib/src/dart2js.dart
diff --git a/pkg/compiler/lib/src/dart2js.dart b/pkg/compiler/lib/src/dart2js.dart
deleted file mode 100644
index d034f3df1b4900d708641e003bad3c8e6500edde..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/dart2js.dart
+++ /dev/null
@@ -1,688 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library dart2js.cmdline;
-
-import 'dart:async'
- show Future, EventSink;
-import 'dart:convert' show UTF8, LineSplitter;
-import 'dart:io'
- show exit, File, FileMode, Platform, RandomAccessFile, FileSystemException,
- stdin, stderr;
-
-import '../compiler.dart' as api;
-import 'source_file.dart';
-import 'source_file_provider.dart';
-import 'filenames.dart';
-import 'util/uri_extras.dart';
-import 'util/util.dart' show stackTraceFilePrefix;
-import 'util/command_line.dart';
-import 'package:_internal/libraries.dart';
-
-const String LIBRARY_ROOT = '../../../../../sdk';
-const String OUTPUT_LANGUAGE_DART = 'Dart';
-
-/**
- * A string to identify the revision or build.
- *
- * This ID is displayed if the compiler crashes and in verbose mode, and is
- * an aid in reproducing bug reports.
- *
- * The actual string is rewritten by a wrapper script when included in the sdk.
- */
-String BUILD_ID = null;
-
-/**
- * The data passed to the [HandleOption] callback is either a single
- * string argument, or the arguments iterator for multiple arguments
- * handlers.
- */
-typedef void HandleOption(data);
-
-class OptionHandler {
- final String pattern;
- final HandleOption handle;
- final bool multipleArguments;
-
- OptionHandler(this.pattern, this.handle, {this.multipleArguments: false});
-}
-
-/**
- * Extract the parameter of an option.
- *
- * For example, in ['--out=fisk.js'] and ['-ohest.js'], the parameters
- * are ['fisk.js'] and ['hest.js'], respectively.
- */
-String extractParameter(String argument, {bool isOptionalArgument: false}) {
- // m[0] is the entire match (which will be equal to argument). m[1]
- // is something like "-o" or "--out=", and m[2] is the parameter.
- Match m = new RegExp('^(-[a-z]|--.+=)(.*)').firstMatch(argument);
- if (m == null) {
- if (isOptionalArgument) return null;
- helpAndFail('Unknown option "$argument".');
- }
- return m[2];
-}
-
-String extractPath(String argument) {
- String path = nativeToUriPath(extractParameter(argument));
- return path.endsWith("/") ? path : "$path/";
-}
-
-void parseCommandLine(List<OptionHandler> handlers, List<String> argv) {
- // TODO(ahe): Use ../../args/args.dart for parsing options instead.
- var patterns = <String>[];
- for (OptionHandler handler in handlers) {
- patterns.add(handler.pattern);
- }
- var pattern = new RegExp('^(${patterns.join(")\$|^(")})\$');
-
- Iterator<String> arguments = argv.iterator;
- OUTER: while (arguments.moveNext()) {
- String argument = arguments.current;
- Match match = pattern.firstMatch(argument);
- assert(match.groupCount == handlers.length);
- for (int i = 0; i < handlers.length; i++) {
- if (match[i + 1] != null) {
- OptionHandler handler = handlers[i];
- if (handler.multipleArguments) {
- handler.handle(arguments);
- } else {
- handler.handle(argument);
- }
- continue OUTER;
- }
- }
- throw 'Internal error: "$argument" did not match';
- }
-}
-
-FormattingDiagnosticHandler diagnosticHandler;
-
-Future compile(List<String> argv) {
- stackTraceFilePrefix = '$currentDirectory';
- Uri libraryRoot = currentDirectory;
- Uri out = currentDirectory.resolve('out.js');
- Uri sourceMapOut = currentDirectory.resolve('out.js.map');
- Uri packageRoot = null;
- List<String> options = new List<String>();
- bool explicitOut = false;
- bool wantHelp = false;
- bool wantVersion = false;
- String outputLanguage = 'JavaScript';
- bool stripArgumentSet = false;
- bool analyzeOnly = false;
- bool analyzeAll = false;
- bool enableAsyncAwait = false;
- bool trustTypeAnnotations = false;
- bool checkedMode = false;
- // List of provided options that imply that output is expected.
- List<String> optionsImplyCompilation = <String>[];
- bool hasDisallowUnsafeEval = false;
- // TODO(johnniwinther): Measure time for reading files.
- SourceFileProvider inputProvider = new CompilerSourceFileProvider();
- diagnosticHandler = new FormattingDiagnosticHandler(inputProvider);
- Map<String, dynamic> environment = new Map<String, dynamic>();
-
- passThrough(String argument) => options.add(argument);
-
- if (BUILD_ID != null) {
- passThrough("--build-id=$BUILD_ID");
- }
-
- setLibraryRoot(String argument) {
- libraryRoot = currentDirectory.resolve(extractPath(argument));
- }
-
- setPackageRoot(String argument) {
- packageRoot = currentDirectory.resolve(extractPath(argument));
- }
-
- setOutput(Iterator<String> arguments) {
- optionsImplyCompilation.add(arguments.current);
- String path;
- if (arguments.current == '-o') {
- if (!arguments.moveNext()) {
- helpAndFail('Error: Missing file after -o option.');
- }
- path = arguments.current;
- } else {
- path = extractParameter(arguments.current);
- }
- explicitOut = true;
- out = currentDirectory.resolve(nativeToUriPath(path));
- sourceMapOut = Uri.parse('$out.map');
- }
-
- setOutputType(String argument) {
- optionsImplyCompilation.add(argument);
- if (argument == '--output-type=dart' ||
- argument == '--output-type=dart-multi') {
- outputLanguage = OUTPUT_LANGUAGE_DART;
- if (!explicitOut) {
- out = currentDirectory.resolve('out.dart');
- sourceMapOut = currentDirectory.resolve('out.dart.map');
- }
- }
- passThrough(argument);
- }
-
- String getDepsOutput(Map<String, SourceFile> sourceFiles) {
- var filenames = new List.from(sourceFiles.keys);
- filenames.sort();
- return filenames.join("\n");
- }
-
- setStrip(String argument) {
- optionsImplyCompilation.add(argument);
- stripArgumentSet = true;
- passThrough(argument);
- }
-
- setAnalyzeOnly(String argument) {
- analyzeOnly = true;
- passThrough(argument);
- }
-
- setAnalyzeAll(String argument) {
- analyzeAll = true;
- passThrough(argument);
- }
-
- setEnableAsync(String argument) {
- enableAsyncAwait = true;
- passThrough(argument);
- }
-
- setVerbose(_) {
- diagnosticHandler.verbose = true;
- passThrough('--verbose');
- }
-
- implyCompilation(String argument) {
- optionsImplyCompilation.add(argument);
- passThrough(argument);
- }
-
- setTrustTypeAnnotations(String argument) {
- trustTypeAnnotations = true;
- implyCompilation(argument);
- }
-
- setCheckedMode(String argument) {
- checkedMode = true;
- passThrough(argument);
- }
-
- addInEnvironment(String argument) {
- int eqIndex = argument.indexOf('=');
- String name = argument.substring(2, eqIndex);
- String value = argument.substring(eqIndex + 1);
- environment[name] = value;
- }
-
- setCategories(String argument) {
- List<String> categories = extractParameter(argument).split(',');
- Set<String> allowedCategories =
- LIBRARIES.values.map((x) => x.category).toSet();
- allowedCategories.remove('Shared');
- allowedCategories.remove('Internal');
- List<String> allowedCategoriesList =
- new List<String>.from(allowedCategories);
- allowedCategoriesList.sort();
- if (categories.contains('all')) {
- categories = allowedCategoriesList;
- } else {
- String allowedCategoriesString = allowedCategoriesList.join(', ');
- for (String category in categories) {
- if (!allowedCategories.contains(category)) {
- fail('Unsupported library category "$category", '
- 'supported categories are: $allowedCategoriesString');
- }
- }
- }
- passThrough('--categories=${categories.join(",")}');
- }
-
- void handleThrowOnError(String argument) {
- diagnosticHandler.throwOnError = true;
- String parameter = extractParameter(argument, isOptionalArgument: true);
- if (parameter != null) {
- diagnosticHandler.throwOnErrorCount = int.parse(parameter);
- }
- }
-
- handleShortOptions(String argument) {
- var shortOptions = argument.substring(1).split("");
- for (var shortOption in shortOptions) {
- switch (shortOption) {
- case 'v':
- setVerbose(null);
- break;
- case 'h':
- case '?':
- wantHelp = true;
- break;
- case 'c':
- setCheckedMode('--enable-checked-mode');
- break;
- case 'm':
- implyCompilation('--minify');
- break;
- default:
- throw 'Internal error: "$shortOption" did not match';
- }
- }
- }
-
- List<String> arguments = <String>[];
- List<OptionHandler> handlers = <OptionHandler>[
- new OptionHandler('-[chvm?]+', handleShortOptions),
- new OptionHandler('--throw-on-error(?:=[0-9]+)?', handleThrowOnError),
- new OptionHandler('--suppress-warnings', (_) {
- diagnosticHandler.showWarnings = false;
- passThrough('--suppress-warnings');
- }),
- new OptionHandler('--suppress-hints',
- (_) => diagnosticHandler.showHints = false),
- new OptionHandler(
- '--output-type=dart|--output-type=dart-multi|--output-type=js',
- setOutputType),
- new OptionHandler('--verbose', setVerbose),
- new OptionHandler('--version', (_) => wantVersion = true),
- new OptionHandler('--library-root=.+', setLibraryRoot),
- new OptionHandler('--out=.+|-o.*', setOutput, multipleArguments: true),
- new OptionHandler('--allow-mock-compilation', passThrough),
- new OptionHandler('--minify|-m', implyCompilation),
- new OptionHandler('--preserve-uris', passThrough),
- new OptionHandler('--force-strip=.*', setStrip),
- new OptionHandler('--disable-diagnostic-colors',
- (_) => diagnosticHandler.enableColors = false),
- new OptionHandler('--enable-diagnostic-colors',
- (_) => diagnosticHandler.enableColors = true),
- new OptionHandler('--enable[_-]checked[_-]mode|--checked',
- (_) => setCheckedMode('--enable-checked-mode')),
- new OptionHandler('--enable-concrete-type-inference',
- (_) => implyCompilation(
- '--enable-concrete-type-inference')),
- new OptionHandler('--trust-type-annotations',
- (_) => setTrustTypeAnnotations(
- '--trust-type-annotations')),
- new OptionHandler(r'--help|/\?|/h', (_) => wantHelp = true),
- new OptionHandler('--package-root=.+|-p.+', setPackageRoot),
- new OptionHandler('--analyze-all', setAnalyzeAll),
- new OptionHandler('--analyze-only', setAnalyzeOnly),
- new OptionHandler('--analyze-signatures-only', setAnalyzeOnly),
- new OptionHandler('--disable-native-live-type-analysis', passThrough),
- new OptionHandler('--categories=.*', setCategories),
- new OptionHandler('--disable-type-inference', implyCompilation),
- new OptionHandler('--terse', passThrough),
- new OptionHandler('--dump-info', implyCompilation),
- new OptionHandler('--disallow-unsafe-eval',
- (_) => hasDisallowUnsafeEval = true),
- new OptionHandler('--show-package-warnings', passThrough),
- new OptionHandler('--csp', passThrough),
- new OptionHandler('--enable-async', setEnableAsync),
- new OptionHandler('-D.+=.*', addInEnvironment),
-
- // The following two options must come last.
- new OptionHandler('-.*', (String argument) {
- helpAndFail("Unknown option '$argument'.");
- }),
- new OptionHandler('.*', (String argument) {
- arguments.add(nativeToUriPath(argument));
- })
- ];
-
- parseCommandLine(handlers, argv);
- if (wantHelp || wantVersion) {
- helpAndExit(wantHelp, wantVersion, diagnosticHandler.verbose);
- }
-
- if (hasDisallowUnsafeEval) {
- String precompiledName =
- relativize(currentDirectory,
- RandomAccessFileOutputProvider.computePrecompiledUri(out),
- Platform.isWindows);
- helpAndFail("Option '--disallow-unsafe-eval' has been removed."
- " Instead, the compiler generates a file named"
- " '$precompiledName'.");
- }
-
- if (outputLanguage != OUTPUT_LANGUAGE_DART && stripArgumentSet) {
- helpAndFail("Option '--force-strip' may only be used with "
- "'--output-type=dart'.");
- }
- if (arguments.isEmpty) {
- helpAndFail('No Dart file specified.');
- }
- if (arguments.length > 1) {
- var extra = arguments.sublist(1);
- helpAndFail('Extra arguments: ${extra.join(" ")}');
- }
-
- if (checkedMode && trustTypeAnnotations) {
- helpAndFail("Option '--trust-type-annotations' may not be used in "
- "checked mode.");
- }
-
- Uri uri = currentDirectory.resolve(arguments[0]);
- if (packageRoot == null) {
- packageRoot = uri.resolve('./packages/');
- }
-
- if ((analyzeOnly || analyzeAll) && !optionsImplyCompilation.isEmpty) {
- if (!analyzeOnly) {
- diagnosticHandler.info(
- "Option '--analyze-all' implies '--analyze-only'.",
- api.Diagnostic.INFO);
- }
- diagnosticHandler.info(
- "Options $optionsImplyCompilation indicate that output is expected, "
- "but compilation is turned off by the option '--analyze-only'.",
- api.Diagnostic.INFO);
- }
- if (analyzeAll) analyzeOnly = true;
- if (enableAsyncAwait && !analyzeOnly) {
- helpAndFail("Option '--enable-async' is currently only supported in "
- "combination with the '--analyze-only' option.");
- }
-
- diagnosticHandler.info('Package root is $packageRoot');
-
- options.add('--out=$out');
- options.add('--source-map=$sourceMapOut');
-
- RandomAccessFileOutputProvider outputProvider =
- new RandomAccessFileOutputProvider(
- out, sourceMapOut, onInfo: diagnosticHandler.info, onFailure: fail);
-
- compilationDone(String code) {
- if (analyzeOnly) return;
- if (code == null) {
- fail('Compilation failed.');
- }
- writeString(Uri.parse('$out.deps'),
- getDepsOutput(inputProvider.sourceFiles));
- diagnosticHandler.info(
- 'Compiled ${inputProvider.dartCharactersRead} characters Dart '
- '-> ${outputProvider.totalCharactersWritten} characters '
- '$outputLanguage in '
- '${relativize(currentDirectory, out, Platform.isWindows)}');
- if (diagnosticHandler.verbose) {
- String input = uriPathToNative(arguments[0]);
- print('Dart file ($input) compiled to $outputLanguage.');
- print('Wrote the following files:');
- for (String filename in outputProvider.allOutputFiles) {
- print(" $filename");
- }
- } else if (!explicitOut) {
- String input = uriPathToNative(arguments[0]);
- String output = relativize(currentDirectory, out, Platform.isWindows);
- print('Dart file ($input) compiled to $outputLanguage: $output');
- }
- }
-
- return compileFunc(uri, libraryRoot, packageRoot,
- inputProvider, diagnosticHandler,
- options, outputProvider, environment)
- .then(compilationDone);
-}
-
-class AbortLeg {
- final message;
- AbortLeg(this.message);
- toString() => 'Aborted due to --throw-on-error: $message';
-}
-
-void writeString(Uri uri, String text) {
- if (uri.scheme != 'file') {
- fail('Unhandled scheme ${uri.scheme}.');
- }
- var file = new File(uri.toFilePath()).openSync(mode: FileMode.WRITE);
- file.writeStringSync(text);
- file.closeSync();
-}
-
-void fail(String message) {
- if (diagnosticHandler != null) {
- diagnosticHandler.diagnosticHandler(
- null, -1, -1, message, api.Diagnostic.ERROR);
- } else {
- print('Error: $message');
- }
- exitFunc(1);
-}
-
-Future compilerMain(List<String> arguments) {
- var root = uriPathToNative("/$LIBRARY_ROOT");
- arguments = <String>['--library-root=${Platform.script.toFilePath()}$root']
- ..addAll(arguments);
- return compile(arguments);
-}
-
-void help() {
- // This message should be no longer than 20 lines. The default
- // terminal size normally 80x24. Two lines are used for the prompts
- // before and after running the compiler. Another two lines may be
- // used to print an error message.
- print('''
-Usage: dart2js [options] dartfile
-
-Compiles Dart to JavaScript.
-
-Common options:
- -o <file> Generate the output into <file>.
- -c Insert runtime type checks and enable assertions (checked mode).
- -m Generate minified output.
- -h Display this message (add -v for information about all options).''');
-}
-
-void verboseHelp() {
- print(r'''
-Usage: dart2js [options] dartfile
-
-Compiles Dart to JavaScript.
-
-Supported options:
- -o <file>, --out=<file>
- Generate the output into <file>.
-
- -c, --enable-checked-mode, --checked
- Insert runtime type checks and enable assertions (checked mode).
-
- -m, --minify
- Generate minified output.
-
- -h, /h, /?, --help
- Display this message (add -v for information about all options).
-
- -v, --verbose
- Display verbose information.
-
- -D<name>=<value>
- Define an environment variable.
-
- --version
- Display version information.
-
- -p<path>, --package-root=<path>
- Where to find packages, that is, "package:..." imports.
-
- --analyze-all
- Analyze all code. Without this option, the compiler only analyzes
- code that is reachable from [main]. This option implies --analyze-only.
-
- --analyze-only
- Analyze but do not generate code.
-
- --analyze-signatures-only
- Skip analysis of method bodies and field initializers. This option implies
- --analyze-only.
-
- --suppress-warnings
- Do not display any warnings.
-
- --suppress-hints
- Do not display any hints.
-
- --enable-diagnostic-colors
- Add colors to diagnostic messages.
-
- --terse
- Emit diagnostics without suggestions for how to get rid of the diagnosed
- problems.
-
- --show-package-warnings
- Show warnings and hints generated from packages.
-
- --preserve-uris
- Preserve the source URIs in the reflection data. Without this flag the
- `uri` getter for `LibraryMirror`s is mangled in minified mode.
-
- --csp
- Disables dynamic generation of code in the generated output. This is
- necessary to satisfy CSP restrictions (see http://www.w3.org/TR/CSP/).
-
-The following options are only used for compiler development and may
-be removed in a future version:
-
- --output-type=dart
- Output Dart code instead of JavaScript.
-
- --throw-on-error
- Throw an exception if a compile-time error is detected.
-
- --library-root=<directory>
- Where to find the Dart platform libraries.
-
- --allow-mock-compilation
- Do not generate a call to main if either of the following
- libraries are used: dart:dom, dart:html dart:io.
-
- --enable-concrete-type-inference
- Enable experimental concrete type inference.
-
- --disable-native-live-type-analysis
- Disable the optimization that removes unused native types from dart:html
- and related libraries.
-
- --categories=<categories>
- A comma separated list of allowed library categories. The default
- is "Client". Possible categories can be seen by providing an
- unsupported category, for example, --categories=help. To enable
- all categories, use --categories=all.
-
- --dump-info
- Generates an out.info.json file with information about the generated code.
- You can inspect the generated file with the viewer at:
- https://dart-lang.github.io/dump-info-visualizer/
-
-'''.trim());
-}
-
-void helpAndExit(bool wantHelp, bool wantVersion, bool verbose) {
- if (wantVersion) {
- var version = (BUILD_ID == null)
- ? '<non-SDK build>'
- : BUILD_ID;
- print('Dart-to-JavaScript compiler (dart2js) version: $version');
- }
- if (wantHelp) {
- if (verbose) {
- verboseHelp();
- } else {
- help();
- }
- }
- exitFunc(0);
-}
-
-void helpAndFail(String message) {
- help();
- print('');
- fail(message);
-}
-
-void main(List<String> arguments) {
- // Since the sdk/bin/dart2js script adds its own arguments in front of
- // user-supplied arguments we search for '--batch' at the end of the list.
- if (arguments.length > 0 && arguments.last == "--batch") {
- batchMain(arguments.sublist(0, arguments.length - 1));
- return;
- }
- internalMain(arguments);
-}
-
-var exitFunc = exit;
-var compileFunc = api.compile;
-
-Future internalMain(List<String> arguments) {
- onError(exception, trace) {
- try {
- print('The compiler crashed: $exception');
- } catch (ignored) {
- print('The compiler crashed: error while printing exception');
- }
-
- try {
- if (trace != null) {
- print(trace);
- }
- } finally {
- exitFunc(253); // 253 is recognized as a crash by our test scripts.
- }
- }
-
- try {
- return compilerMain(arguments).catchError(onError);
- } catch (exception, trace) {
- onError(exception, trace);
- return new Future.value();
- }
-}
-
-const _EXIT_SIGNAL = const Object();
-
-void batchMain(List<String> batchArguments) {
- int exitCode;
- exitFunc = (errorCode) {
- // Since we only throw another part of the compiler might intercept our
- // exception and try to exit with a different code.
- if (exitCode == 0) {
- exitCode = errorCode;
- }
- throw _EXIT_SIGNAL;
- };
-
- var stream = stdin.transform(UTF8.decoder).transform(new LineSplitter());
- var subscription;
- subscription = stream.listen((line) {
- new Future.sync(() {
- subscription.pause();
- exitCode = 0;
- if (line == null) exit(0);
- List<String> args = <String>[];
- args.addAll(batchArguments);
- args.addAll(splitLine(line, windows: Platform.isWindows));
- return internalMain(args);
- }).catchError((exception, trace) {
- if (!identical(exception, _EXIT_SIGNAL)) {
- exitCode = 253;
- }
- }).whenComplete(() {
- // The testing framework waits for a status line on stdout and
- // stderr before moving to the next test.
- if (exitCode == 0){
- print(">>> TEST OK");
- } else if (exitCode == 253) {
- print(">>> TEST CRASH");
- } else {
- print(">>> TEST FAIL");
- }
- stderr.writeln(">>> EOF STDERR");
- subscription.resume();
- });
- });
-}
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