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Side by Side Diff: client/html/benchmarks/common/BenchUtil.dart

Issue 9845043: Rename client/{dom,html} to lib/{dom,html} . (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 9 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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.
4
5 // Misc benchmark-related utility functions.
6
7 class BenchUtil {
8 static int get now() {
9 return new Date.now().value;
10 }
11
12 static Map<String, Object> deserialize(String data) {
13 return JSON.parse(data);
14 }
15
16 static String serialize(Object obj) {
17 return JSON.stringify(obj);
18 }
19
20 // Shuffle an array randomly.
21 static void shuffle(Array<Object> array) {
22 int len = array.length - 1;
23 for (int i = 0; i < len; i++) {
24 int index = (Math.random() * (len - i)).toInt() + i;
25 Object tmp = array[i];
26 array[i] = array[index];
27 array[index] = tmp;
28 }
29 }
30
31 static String formatGolemData(String prefix, Map<String, num> results) {
32 Array<String> elements = new Array<String>();
33 results.forEach((String name, num score) {
34 elements.add('"${prefix}/${name}":${score}');
35 });
36 return serialize(elements);
37 }
38
39 static bool _inRange(int charCode, String start, String end) {
40 return start.charCodeAt(0) <= charCode && charCode <= end.charCodeAt(0);
41 }
42
43 static final String DIGITS = '0123456789ABCDEF';
44 static String _asDigit(int value) {
45 return DIGITS[value];
46 }
47
48 static String encodeUri(final String s) {
49 StringBuffer sb = new StringBuffer();
50 for (int i = 0; i < s.length; i++) {
51 final int charCode = s.charCodeAt(i);
52 final bool noEscape =
53 _inRange(charCode, '0', '9') ||
54 _inRange(charCode, 'a', 'z') ||
55 _inRange(charCode, 'A', 'Z');
56 if (noEscape) {
57 sb.add(s[i]);
58 } else {
59 sb.add('%');
60 sb.add(_asDigit((charCode >> 4) & 0xF));
61 sb.add(_asDigit(charCode & 0xF));
62 }
63 }
64 return sb.toString();
65 }
66
67 // TODO: use corelib implementation.
68 static String replaceAll(String s, String pattern,
69 String replacement(Match match)) {
70 StringBuffer sb = new StringBuffer();
71
72 int pos = 0;
73 for (Match match in new RegExp(pattern, '').allMatches(s)) {
74 sb.add(s.substring(pos, match.start()));
75 sb.add(replacement(match));
76 pos = match.end();
77 }
78 sb.add(s.substringToEnd(pos));
79
80 return sb.toString();
81 }
82 }
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