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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 |
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| 187 /// Parse the full body of [source]. | 187 /// Parse the full body of [source]. |
| 188 parseFull(Uri uri, List<int> source) { | 188 parseFull(Uri uri, List<int> source) { |
| 189 var tokens = tokenize(source); | 189 var tokens = tokenize(source); |
| 190 Parser parser = new Parser(new _PartialAstBuilder(uri)); | 190 Parser parser = new Parser(new _PartialAstBuilder(uri)); |
| 191 parser.parseUnit(tokens); | 191 parser.parseUnit(tokens); |
| 192 } | 192 } |
| 193 | 193 |
| 194 // Note: AstBuilder doesn't build compilation-units or classes, only method | 194 // Note: AstBuilder doesn't build compilation-units or classes, only method |
| 195 // bodies. So this listener is not feature complete. | 195 // bodies. So this listener is not feature complete. |
| 196 class _PartialAstBuilder extends AstBuilder { | 196 class _PartialAstBuilder extends AstBuilder { |
| 197 _PartialAstBuilder(Uri uri) : super(null, null, null, null, null, true, uri); | 197 _PartialAstBuilder(Uri uri) |
| 198 : super(null, null, null, null, null, true, true, uri); |
| 198 | 199 |
| 199 // Note: this method converts the body to kernel, so we skip that here. | 200 // Note: this method converts the body to kernel, so we skip that here. |
| 200 @override | 201 @override |
| 201 finishFunction(annotations, formals, asyncModifier, body) {} | 202 finishFunction(annotations, formals, asyncModifier, body) {} |
| 202 } | 203 } |
| 203 | 204 |
| 204 // Invoke the fasta kernel generator for the program starting in [entryUri] | 205 // Invoke the fasta kernel generator for the program starting in [entryUri] |
| 205 generateKernel(Uri entryUri, | 206 generateKernel(Uri entryUri, |
| 206 {bool compileSdk: true, bool strongMode: false}) async { | 207 {bool compileSdk: true, bool strongMode: false}) async { |
| 207 // TODO(sigmund): this is here only to compute the input size, | 208 // TODO(sigmund): this is here only to compute the input size, |
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| 245 /// Report that metric [name] took [time] micro-seconds to process | 246 /// Report that metric [name] took [time] micro-seconds to process |
| 246 /// [inputSize] characters. | 247 /// [inputSize] characters. |
| 247 void report(String name, int time) { | 248 void report(String name, int time) { |
| 248 var sb = new StringBuffer(); | 249 var sb = new StringBuffer(); |
| 249 var padding = ' ' * (20 - name.length); | 250 var padding = ' ' * (20 - name.length); |
| 250 sb.write('$name:$padding $time us, ${time ~/ 1000} ms'); | 251 sb.write('$name:$padding $time us, ${time ~/ 1000} ms'); |
| 251 var invSpeed = (time * 1000 / inputSize).toStringAsFixed(2); | 252 var invSpeed = (time * 1000 / inputSize).toStringAsFixed(2); |
| 252 sb.write(', $invSpeed ns/char'); | 253 sb.write(', $invSpeed ns/char'); |
| 253 print('$sb'); | 254 print('$sb'); |
| 254 } | 255 } |
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