blob: 0d7ab6ffecb3a0b59c3b14b90679d566ed75f1f9 [file] [log] [blame]
// Copyright (c) 2018, 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.
library fasta.library_graph;
import 'package:kernel/kernel.dart' show Library, LibraryDependency;
import 'package:kernel/util/graph.dart' show Graph;
class LibraryGraph implements Graph<Uri> {
final Map<Uri, Library> libraries;
Iterable<Uri> get vertices => libraries.keys;
Iterable<Uri> neighborsOf(Uri vertex) sync* {
Library library = libraries[vertex];
if (library == null) {
throw "Library not found: $vertex";
// Imports and exports
for (LibraryDependency dependency in library.dependencies) {
Uri uri1 = dependency.targetLibrary.importUri;
Uri uri2 = dependency.targetLibrary.fileUri;
if (libraries.containsKey(uri1)) {
yield uri1;
} else if (uri2 != null) {
if (libraries.containsKey(uri2)) {
yield uri2;