Peter von der Ahé
4f2bdff90b
Change-Id: I1a3cc03fba9783807fa637a9d42fdbad68ee7686 Reviewed-on: https://dart-review.googlesource.com/31040 Commit-Queue: Peter von der Ahé <ahe@google.com> Reviewed-by: Kevin Millikin <kmillikin@google.com>
52 lines
1.4 KiB
Dart
Executable File
52 lines
1.4 KiB
Dart
Executable File
#!/usr/bin/env dart
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// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:io';
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import 'package:kernel/kernel.dart';
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import 'util.dart';
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void usage() {
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print("Enumerates the different node types in the provided dill file");
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print("and counts them.");
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print("");
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print("Usage: dart <script> dillFile.dill");
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print("The given argument should be an existing file");
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print("that is valid to load as a dill file.");
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exit(1);
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}
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main(List<String> args) {
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CommandLineHelper.requireExactlyOneArgument(true, args, usage);
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Component component = CommandLineHelper.tryLoadDill(args[0], usage);
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TypeCounter counter = new TypeCounter();
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component.accept(counter);
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counter.printStats();
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}
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class TypeCounter extends RecursiveVisitor {
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Map<String, int> _typeCounts = <String, int>{};
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defaultNode(Node node) {
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String key = node.runtimeType.toString();
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_typeCounts[key] ??= 0;
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_typeCounts[key]++;
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super.defaultNode(node);
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}
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printStats() {
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List<List<Object>> data = [];
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_typeCounts.forEach((type, count) {
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data.add([type, count]);
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});
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data.sort((a, b) {
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int aCount = a[1];
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int bCount = b[1];
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return bCount - aCount;
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});
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for (var entry in data) {
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print("${entry[0]}: ${entry[1]}");
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}
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}
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}
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