blob: 0771034c59d885e3ad496b6473e5ee297671cbff [file] [log] [blame]
#!/usr/bin/env dart
// 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.
import 'dart:io';
import 'package:kernel/kernel.dart';
import 'package:kernel/src/tool/command_line_util.dart';
void usage() {
print("Enumerates the different node types in the provided dill file");
print("and counts them.");
print("Usage: dart <script> dillFile.dill");
print("The given argument should be an existing file");
print("that is valid to load as a dill file.");
void main(List<String> args) {
CommandLineHelper.requireExactlyOneArgument(args, usage,
requireFileExists: true);
Component component = CommandLineHelper.tryLoadDill(args[0]);
TypeCounter counter = new TypeCounter();
class TypeCounter extends RecursiveVisitor {
Map<String, int> _typeCounts = <String, int>{};
void defaultNode(Node node) {
String key = node.runtimeType.toString();
_typeCounts[key] = (_typeCounts[key] ??= 0) + 1;
void printStats() {
List<List<Object>> data = [];
_typeCounts.forEach((type, count) {
data.add([type, count]);
data.sort((a, b) {
int aCount = a[1] as int;
int bCount = b[1] as int;
return bCount - aCount;
for (var entry in data) {
print("${entry[0]}: ${entry[1]}");