| // Copyright (c) 2017, 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. |
| |
| import "dart:io"; |
| |
| void main(List<String> args) { |
| if (args.contains("--child")) { |
| print("Hello, pre-scanned world!"); |
| } else { |
| runSnapshot(generateSnapshot()); |
| } |
| } |
| |
| generateSnapshot() { |
| var tempDir = Directory.systemTemp.createTempSync("script-snapshot"); |
| var snapshotPath = tempDir.uri.resolve("hello.snapshot").toFilePath(); |
| |
| var exec = Platform.resolvedExecutable; |
| var args = new List(); |
| args.addAll(Platform.executableArguments); |
| args.add("--snapshot=$snapshotPath"); |
| args.add(Platform.script.toFilePath()); |
| args.add("--child"); |
| var result = Process.runSync(exec, args); |
| if (result.exitCode != 0) { |
| throw "Bad exit code: ${result.exitCode}"; |
| } |
| if (result.stdout.contains("Hello, pre-scanned world!")) { |
| print(result.stdout); |
| throw "Should not have run the script."; |
| } |
| |
| return snapshotPath; |
| } |
| |
| runSnapshot(var snapshotPath) { |
| var exec = Platform.resolvedExecutable; |
| var args = new List(); |
| args.addAll(Platform.executableArguments); |
| args.add(snapshotPath); |
| args.add("--child"); |
| var result = Process.runSync(exec, args); |
| if (result.exitCode != 0) { |
| throw "Bad exit code: ${result.exitCode}"; |
| } |
| if (!result.stdout.contains("Hello, pre-scanned world!")) { |
| print(result.stdout); |
| throw "Failed to run the snapshot."; |
| } |
| } |