Move dart2js from sdk/lib/_internal/compiler to pkg/compiler

sdk/lib/_internal/compiler/samples/darttags/darttags.dart

-// 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.
-
-// Usage: Add the following to your .gclient file (found in the parent
-// of the "dart" in a gclient checkout of the Dart repositor).
-//
-// hooks = [
-//   {
-//     "pattern": ".",
-//     "action": [
-//       "dart/sdk/bin/dart",
-//       "dart/sdk/lib/_internal/compiler/samples/darttags/darttags.dart",
-//       "dart/TAGS"
-//     ],
-//   },
-// ]
-//
-// Modify .emacs to contain:
-//
-//      (setq tags-table-list
-//           '("DART_LOCATION/dart"))
-//
-// Where DART_LOCATION is the gclient directory where you found .gclient.
-
-import 'dart:io';
-
-import 'dart:mirrors';
-
-import '../../../libraries.dart'
-    show LIBRARIES, LibraryInfo;
-
-import '../../implementation/mirrors/analyze.dart'
-    show analyze;
-import '../../implementation/mirrors/dart2js_mirrors.dart'
-    show BackDoor;
-import '../../implementation/mirrors/mirrors_util.dart' show nameOf;
-
-import '../../implementation/filenames.dart';
-import '../../implementation/source_file.dart';
-import '../../implementation/source_file_provider.dart';
-import '../../implementation/util/uri_extras.dart';
-
-const DART2JS = '../../implementation/dart2js.dart';
-const DART2JS_MIRROR = '../../implementation/mirrors/dart2js_mirrors.dart';
-const SDK_ROOT = '../../../../../';
-
-bool isPublicDart2jsLibrary(String name) {
-  return !name.startsWith('_') && LIBRARIES[name].isDart2jsLibrary;
-}
-
-var handler;
-RandomAccessFile output;
-Uri outputUri;
-
-main(List<String> arguments) {
-  handler = new FormattingDiagnosticHandler()
-      ..throwOnError = true;
-
-  outputUri =
-      handler.provider.cwd.resolve(nativeToUriPath(arguments.first));
-  output = new File(arguments.first).openSync(mode: FileMode.WRITE);
-
-  Uri myLocation =
-      handler.provider.cwd.resolveUri(Platform.script);
-
-  // Get the names of public dart2js libraries.
-  Iterable<String> names = LIBRARIES.keys.where(isPublicDart2jsLibrary);
-
-  // Prepend "dart:" to the names.
-  List<Uri> uris = names.map((String name) => Uri.parse('dart:$name')).toList();
-
-  // Append dart2js itself.
-  uris.add(myLocation.resolve(DART2JS));
-  uris.add(myLocation.resolve(DART2JS_MIRROR));
-
-  analyze(uris, myLocation.resolve(SDK_ROOT), null, handler.provider, handler)
-      .then(processMirrors);
-}
-
-processMirrors(MirrorSystem mirrors) {
-  mirrors.libraries.forEach((_, LibraryMirror library) {
-    BackDoor.compilationUnitsOf(library).forEach(emitTagsForCompilationUnit);
-  });
-
-  output.closeSync();
-}
-
-/**
- * From http://en.wikipedia.org/wiki/Ctags#Etags_2
- *
- * A section starts with a two line header, one line containing a
- * single <\x0c> character, followed by a line which consists of:
- *
- * {src_file},{size_of_tag_definition_data_in_bytes}
- *
- * The header is followed by tag definitions, one definition per line,
- * with the format:
- *
- * {tag_definition_text}<\x7f>{tagname}<\x01>{line_number},{byte_offset}
- */
-emitTagsForCompilationUnit(compilationUnit) {
-  // Certain variables in this method do not follow Dart naming
-  // conventions.  This is because the format as written on Wikipedia
-  // looks very similar to Dart string interpolation that the author
-  // felt it would make sense to keep the names.
-  Uri uri = compilationUnit.uri;
-  var buffer = new StringBuffer();
-  SourceFile file = handler.provider.sourceFiles['$uri'];
-  String src_file = relativize(outputUri, uri, false);
-
-  compilationUnit.declarations.forEach((_, DeclarationMirror mirror) {
-    Definition definition = new Definition.from(mirror, file);
-    String name = nameOf(mirror);
-    definition.writeOn(buffer, name);
-
-    if (mirror is ClassMirror) {
-      emitTagsForClass(mirror, file, buffer);
-    }
-  });
-
-  var tag_definition_data = '$buffer';
-  var size_of_tag_definition_data_in_bytes = tag_definition_data.length;
-
-  // The header.
-  output.writeStringSync(
-      '\x0c\n${src_file},${size_of_tag_definition_data_in_bytes}\n');
-  output.writeStringSync(tag_definition_data);
-}
-
-void emitTagsForClass(ClassMirror cls, SourceFile file, StringBuffer buffer) {
-  String className = nameOf(cls);
-
-  cls.declarations.forEach((_, DeclarationMirror mirror) {
-    Definition definition = new Definition.from(mirror, file);
-    String name = nameOf(mirror);
-    if (mirror is MethodMirror && mirror.isConstructor) {
-      if (name == '') {
-        name = className;
-        definition.writeOn(buffer, 'new $className');
-      } else {
-        definition.writeOn(buffer, 'new $className.$name');
-      }
-    } else {
-      definition.writeOn(buffer, '$className.$name');
-    }
-    definition.writeOn(buffer, name);
-  });
-}
-
-class Definition {
-  final int byte_offset;
-  final int line_number;
-  final String tag_definition_text;
-
-  Definition(this.byte_offset, this.line_number, this.tag_definition_text);
-
-  factory Definition.from(DeclarationMirror mirror, SourceFile file) {
-    var location = mirror.location;
-    int byte_offset = location.offset;
-    int line_number = file.getLine(byte_offset) + 1;
-
-    int lineStart = file.lineStarts[line_number - 1];
-
-    int lineEnd = file.lineStarts.length > line_number
-        // Subract 1 to remove trailing newline.
-        ? file.lineStarts[line_number] - 1
-        : null;
-    String tag_definition_text = file.slowText().substring(lineStart, lineEnd);
-
-    return new Definition(byte_offset, line_number, tag_definition_text);
-  }
-
-  void writeOn(StringBuffer buffer, String tagname) {
-    buffer.write(
-        '${tag_definition_text}\x7f${tagname}'
-        '\x01${line_number},${byte_offset}\n');
-  }
-}