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Side by Side Diff: pkg/front_end/tool/fasta_perf.dart

Issue 2723113002: Consolidate analyzer dependencies. (Closed)
Patch Set: Remove new dependency on AsyncMarker. Created 3 years, 9 months ago
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1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 /// An entrypoint used to run portions of fasta and measure its performance. 5 /// An entrypoint used to run portions of fasta and measure its performance.
6 library front_end.tool.fasta_perf; 6 library front_end.tool.fasta_perf;
7 7
8 import 'dart:async'; 8 import 'dart:async';
9 import 'dart:io'; 9 import 'dart:io';
10 10
11 import 'package:front_end/src/fasta/analyzer/ast_builder.dart'; 11 import 'package:front_end/src/fasta/analyzer/ast_builder.dart';
12 import 'package:front_end/src/fasta/ast_kind.dart' show AstKind;
13 import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget; 12 import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget;
14 import 'package:front_end/src/fasta/kernel/kernel_target.dart' 13 import 'package:front_end/src/fasta/kernel/kernel_target.dart'
15 show KernelTarget; 14 show KernelTarget;
16 import 'package:front_end/src/fasta/parser.dart'; 15 import 'package:front_end/src/fasta/parser.dart';
17 import 'package:front_end/src/fasta/scanner.dart'; 16 import 'package:front_end/src/fasta/scanner.dart';
18 import 'package:front_end/src/fasta/scanner/io.dart' show readBytesFromFileSync; 17 import 'package:front_end/src/fasta/scanner/io.dart' show readBytesFromFileSync;
19 import 'package:front_end/src/fasta/scanner/precedence.dart'; 18 import 'package:front_end/src/fasta/scanner/precedence.dart';
20 import 'package:front_end/src/fasta/source/scope_listener.dart' show Scope; 19 import 'package:front_end/src/fasta/source/scope_listener.dart' show Scope;
21 import 'package:front_end/src/fasta/ticker.dart' show Ticker; 20 import 'package:front_end/src/fasta/ticker.dart' show Ticker;
22 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri; 21 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri;
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269 Uri.parse('dart:typed_data'), 268 Uri.parse('dart:typed_data'),
270 ]; 269 ];
271 entrypoints.forEach(kernelTarget.read); 270 entrypoints.forEach(kernelTarget.read);
272 271
273 if (!compileSdk) { 272 if (!compileSdk) {
274 dillTarget.read( 273 dillTarget.read(
275 Uri.base.resolve(Platform.resolvedExecutable).resolve('platform.dill')); 274 Uri.base.resolve(Platform.resolvedExecutable).resolve('platform.dill'));
276 } 275 }
277 await dillTarget.writeOutline(null); 276 await dillTarget.writeOutline(null);
278 var program = await kernelTarget.writeOutline(null); 277 var program = await kernelTarget.writeOutline(null);
279 program = await kernelTarget.writeProgram(null, AstKind.Kernel); 278 program = await kernelTarget.writeProgram(null);
280 if (kernelTarget.errors.isNotEmpty) { 279 if (kernelTarget.errors.isNotEmpty) {
281 throw kernelTarget.errors.first; 280 throw kernelTarget.errors.first;
282 } 281 }
283 timer.stop(); 282 timer.stop();
284 report('kernel_gen_e2e', timer.elapsedMicroseconds); 283 report('kernel_gen_e2e', timer.elapsedMicroseconds);
285 return program; 284 return program;
286 } 285 }
287 286
288 /// Report that metric [name] took [time] micro-seconds to process 287 /// Report that metric [name] took [time] micro-seconds to process
289 /// [inputSize] characters. 288 /// [inputSize] characters.
290 void report(String name, int time) { 289 void report(String name, int time) {
291 var sb = new StringBuffer(); 290 var sb = new StringBuffer();
292 var padding = ' ' * (20 - name.length); 291 var padding = ' ' * (20 - name.length);
293 sb.write('$name:$padding $time us, ${time ~/ 1000} ms'); 292 sb.write('$name:$padding $time us, ${time ~/ 1000} ms');
294 var invSpeed = (time * 1000 / inputSize).toStringAsFixed(2); 293 var invSpeed = (time * 1000 / inputSize).toStringAsFixed(2);
295 sb.write(', $invSpeed ns/char'); 294 sb.write(', $invSpeed ns/char');
296 print('$sb'); 295 print('$sb');
297 } 296 }
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