Implement modular compilation

lib/src/runner/v8_runner.dart

Index: lib/src/runner/v8_runner.dart
diff --git a/lib/src/runner/v8_runner.dart b/lib/src/runner/v8_runner.dart
deleted file mode 100644
index 3797be90bf3c7397a24bb867c951aab463ef036f..0000000000000000000000000000000000000000
--- a/lib/src/runner/v8_runner.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2015, 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.
-
-/// V8 runner support used by dartdevrun.
-
-import 'dart:async';
-import 'dart:io';
-
-import 'package:path/path.dart';
-import 'package:pub_semver/pub_semver.dart' show Version;
-
-import '../options.dart' show CompilerOptions;
-import 'runtime_utils.dart' show getRuntimeFileAlias;
-
-_parseV8Version(String version) =>
-    new Version.parse(version.split('.').getRange(0, 3).join('.'));
-
-final _MIN_SUPPORTED_V8_VERSION = _parseV8Version("4.5.103.30");
-
-/// TODO(ochafik): Move to dart_library.js
-const _GLOBALS = r'''
-  if (typeof global == 'undefined') var global = this;
-  if (typeof alert == 'undefined') var alert = x => console.log(`ALERT: ${x}`);
-  if (typeof console == 'undefined') var console = { log: print, error: print };
-''';
-
-/// Runner for v8-based JS interpreter binaries.
-abstract class V8Runner {
-  final CompilerOptions _options;
-  V8Runner._(this._options);
-
-  factory V8Runner(CompilerOptions options) {
-    String bin = options.runnerOptions.v8Binary;
-    switch (basename(bin)) {
-      case "iojs":
-      case "node":
-        return new _NodeRunner(options).._checkVersion();
-      case "d8":
-        return new _D8Runner(options).._checkVersion();
-      default:
-        throw new UnsupportedError("Unknown v8-based binary: $bin");
-    }
-  }
-
-  List<String> get _v8VersionArgs;
-  List<String> _getLoadStatements(List<File> files);
-
-  String get _v8Binary => _options.runnerOptions.v8Binary;
-
-  Future<Process> start(List<File> files, String startStatement) =>
-      Process.start(
-          _v8Binary,
-          [
-            "--harmony",
-            "-e",
-            _GLOBALS + _getLoadStatements(files).join() + startStatement
-          ],
-          workingDirectory: _options.codegenOptions.outputDir);
-
-  /// Throws if the v8 version of this runner is not supported, or if the runner
-  /// is not in the path.
-  void _checkVersion() {
-    ProcessResult result = Process.runSync(_v8Binary, _v8VersionArgs);
-    if (result.exitCode != 0) {
-      throw new StateError("Failed to run $_v8Binary: ${result.stderr}");
-    }
-    String v8Version = result.stdout.trim();
-    if (_parseV8Version(v8Version).compareTo(_MIN_SUPPORTED_V8_VERSION) < 0) {
-      throw new StateError(
-          "V8 version $v8Version in $_v8Binary does not meet the required "
-          "minimum $_MIN_SUPPORTED_V8_VERSION.");
-    }
-  }
-}
-
-/// Runner for d8 (see https://developers.google.com/v8/build).
-class _D8Runner extends V8Runner {
-  _D8Runner(options) : super._(options);
-
-  @override
-  get _v8VersionArgs => ['-e', 'print(version())'];
-
-  @override
-  _getLoadStatements(List<File> files) =>
-      files.map((file) => 'load("${file.path}");');
-}
-
-/// Runner for iojs (see https://iojs.org/download/next-nightly/) and node.
-class _NodeRunner extends V8Runner {
-  _NodeRunner(options) : super._(options);
-
-  @override
-  get _v8VersionArgs => ['-p', 'process.versions.v8'];
-
-  @override
-  _getLoadStatements(List<File> files) => files.map((file) {
-        String alias = getRuntimeFileAlias(_options, file);
-        return (alias != null ? 'var $alias = ' : '') +
-            'require("${file.path}");';
-      });
-}