Fasta infrastructure.

pkg/fasta/lib/src/run.dart

+// Copyright (c) 2016, 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.md file.
+
+library fasta.run;
+
+import 'dart:async' show
+    Future;
+
+import 'dart:io' show
+    stdout;
+
+import 'package:testing/testing.dart' show
+    StdioProcess;
+
+import '../testing/kernel_chain.dart' show
+    TestContext;
+
+import 'compiler_command_line.dart' show
+    CompilerCommandLine;
+
+Future<int> run(Uri uri, CompilerCommandLine cl) async {
+  Uri dartVm;
+
+  Future<TestContext> constructor(
+      suite, Map<String, String> environment, String sdk, Uri vm,
+      Uri packages, bool strongMode, dartSdk, bool updateExpectations) {
+    dartVm = vm;
+    return null;
+  }
+  // TODO(ahe): Using [TestContext] to compute a value for [dartVm]. Make the
+  // API simpler.
+  await TestContext.create(null, <String, String>{}, constructor);
+  List<String> arguments = <String>["${uri.toFilePath()}"]
+      ..addAll(cl.arguments.skip(1));
+  if (cl.verbose) {
+    print("Running ${dartVm.toFilePath()} ${arguments.join(' ')}");
+  }
+  StdioProcess result = await StdioProcess.run(dartVm.toFilePath(), arguments);
+  stdout.write(result.output);
+  return result.exitCode;
+}