| // Copyright (c) 2014, 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 'package:path/path.dart' as p; |
| |
| /// Some hopefully real-world representative platform-independent paths. |
| const genericPaths = [ |
| '.', |
| '..', |
| 'out/ReleaseIA32/packages', |
| 'lib', |
| 'lib/src/', |
| 'lib/src/style/url.dart', |
| 'test/./not/.././normalized', |
| 'benchmark/really/long/path/with/many/components.dart', |
| ]; |
| |
| /// Some platform-specific paths. |
| final platformPaths = { |
| p.Style.posix: [ |
| '/', |
| '/home/user/dart/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart', |
| ], |
| p.Style.url: [ |
| 'https://example.server.org/443643002/path?top=yes#fragment', |
| ], |
| p.Style.windows: [ |
| r'C:\User\me\', |
| r'\\server\share\my\folders\some\file.data', |
| ], |
| }; |
| |
| /// The command line arguments passed to this script. |
| List<String> arguments; |
| |
| void main(List<String> args) { |
| arguments = args; |
| |
| for (var style in [p.Style.posix, p.Style.url, p.Style.windows]) { |
| final context = p.Context(style: style); |
| final files = genericPaths.toList()..addAll(platformPaths[style]); |
| |
| void benchmark(String name, Function function) { |
| runBenchmark('${style.name}-$name', 100000, () { |
| for (var file in files) { |
| function(file); |
| } |
| }); |
| } |
| |
| void benchmarkPairs(String name, void Function(String, String) function) { |
| runBenchmark('${style.name}-$name', 1000, () { |
| for (var file1 in files) { |
| for (var file2 in files) { |
| function(file1, file2); |
| } |
| } |
| }); |
| } |
| |
| benchmark('absolute', context.absolute); |
| benchmark('basename', context.basename); |
| benchmark('basenameWithoutExtension', context.basenameWithoutExtension); |
| benchmark('dirname', context.dirname); |
| benchmark('extension', context.extension); |
| benchmark('rootPrefix', context.rootPrefix); |
| benchmark('isAbsolute', context.isAbsolute); |
| benchmark('isRelative', context.isRelative); |
| benchmark('isRootRelative', context.isRootRelative); |
| benchmark('normalize', context.normalize); |
| benchmark('relative', context.relative); |
| benchmarkPairs('relative from', (String file, String from) { |
| try { |
| context.relative(file, from: from); |
| } on p.PathException { |
| // Do nothing. |
| } |
| }); |
| benchmark('toUri', context.toUri); |
| benchmark('prettyUri', context.prettyUri); |
| benchmarkPairs('isWithin', context.isWithin); |
| } |
| |
| runBenchmark('current', 100000, () => p.current); |
| } |
| |
| void runBenchmark(String name, int count, Function function) { |
| // If names are passed on the command-line, they select which benchmarks are |
| // run. |
| if (arguments.isNotEmpty && !arguments.contains(name)) return; |
| |
| // Warmup. |
| for (var i = 0; i < 10000; i++) { |
| function(); |
| } |
| |
| final stopwatch = Stopwatch()..start(); |
| for (var i = 0; i < count; i++) { |
| function(); |
| } |
| |
| final rate = |
| (count / stopwatch.elapsedMicroseconds).toStringAsFixed(5).padLeft(9); |
| print('${name.padLeft(32)}: $rate iter/us (${stopwatch.elapsed})'); |
| } |