| // 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:async'; |
| import 'dart:io'; |
| |
| import 'package:front_end/src/scanner/token.dart' show Token; |
| import 'package:kernel/ast.dart'; |
| import 'package:kernel/binary/ast_to_binary.dart'; |
| import 'package:kernel/text/ast_to_text.dart'; |
| |
| /// A null-aware alternative to `token.offset`. If [token] is `null`, returns |
| /// `TreeNode.noOffset`. |
| int offsetForToken(Token token) => |
| token == null ? TreeNode.noOffset : token.offset; |
| |
| /// Print the given [program]. Do nothing if it is `null`. If the |
| /// [libraryFilter] is provided, then only libraries that satisfy it are |
| /// printed. |
| void printProgramText(Program program, {bool libraryFilter(Library library)}) { |
| if (program == null) return; |
| StringBuffer sb = new StringBuffer(); |
| for (Library library in program.libraries) { |
| if (libraryFilter != null && !libraryFilter(library)) continue; |
| Printer printer = new Printer(sb); |
| printer.writeLibraryFile(library); |
| } |
| print(sb); |
| } |
| |
| Future<Null> writeProgramToFile(Program program, Uri uri) async { |
| File output = new File.fromUri(uri); |
| IOSink sink = output.openWrite(); |
| try { |
| new BinaryPrinter(sink).writeProgramFile(program); |
| program.unbindCanonicalNames(); |
| } finally { |
| await sink.close(); |
| } |
| } |