├── .gitignore
├── LICENSE.txt
├── README.md
├── app.js
├── index.html
└── style.css
/.gitignore:
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1 | npm-debug.log
2 |
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/LICENSE.txt:
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1 | Copyright (c) 2018 Chen, Yi-Cyuan
2 |
3 | MIT License
4 |
5 | Permission is hereby granted, free of charge, to any person obtaining
6 | a copy of this software and associated documentation files (the
7 | "Software"), to deal in the Software without restriction, including
8 | without limitation the rights to use, copy, modify, merge, publish,
9 | distribute, sublicense, and/or sell copies of the Software, and to
10 | permit persons to whom the Software is furnished to do so, subject to
11 | the following conditions:
12 |
13 | The above copyright notice and this permission notice shall be
14 | included in all copies or substantial portions of the Software.
15 |
16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 |
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/README.md:
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1 | # Solidity optimize name
2 | Find a optimized name for method.
3 | Please go to [here](http://emn178.github.io/solidity-optimize-name/).
4 |
5 | ## License
6 | The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
7 |
8 | ## Contact
9 | The project's website is located at https://github.com/emn178/solidity-optimize-name
10 | Author: Chen, Yi-Cyuan (emn178@gmail.com)
11 |
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/app.js:
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1 | (function ($) {
2 | var CHARS = '0123456789abcdefghijklmnopqrstuvwxysABCDEFGHIJKLMNOPQRSTUVWXYS$_'.split('');
3 | var CHAR_MAP = {};
4 | CHARS.forEach(function (c, index) {
5 | CHAR_MAP[c] = index;
6 | });
7 |
8 | var CHAR_CODES = CHARS.map(function (c) {
9 | return c.charCodeAt(0);
10 | });
11 |
12 | var CHAR_CODE_MAP = {};
13 | CHARS.forEach(function (c, index) {
14 | CHAR_CODE_MAP[index] = c.charCodeAt(0);
15 | });
16 |
17 | var data = { blocks: [], s: [] };
18 | function save(hash) {
19 | data.reset = hash.reset;
20 | data.block = hash.block;
21 | data.start = hash.start;
22 | data.finalized = hash.finalized;
23 | data.lastByteIndex = hash.lastByteIndex;
24 | for (var i = 0; i < hash.blocks.length; ++i) {
25 | data.blocks[i] = hash.blocks[i];
26 | }
27 | for (var i = 0; i < hash.s.length; ++i) {
28 | data.s[i] = hash.s[i];
29 | }
30 | }
31 |
32 | function restore(hash) {
33 | hash.reset = data.reset;
34 | hash.block = data.block;
35 | hash.start = data.start;
36 | hash.finalized = data.finalized;
37 | hash.lastByteIndex = data.lastByteIndex;
38 | for (var i = 0; i < data.blocks.length; ++i) {
39 | hash.blocks[i] = data.blocks[i];
40 | }
41 | for (var i = 0; i < data.s.length; ++i) {
42 | hash.s[i] = data.s[i];
43 | }
44 | }
45 |
46 | function toBytes(str) {
47 | var bytes = [];
48 | for (var i = 0; i < str.length; ++i) {
49 | bytes.push(str.charCodeAt(i));
50 | }
51 | return bytes;
52 | }
53 |
54 | function parseSignature(signature) {
55 | if (signature.charAt(signature.length - 1) != ')' || signature.indexOf(' ') !== -1) {
56 | return false;
57 | }
58 | var parts = signature.split('(');
59 | if (parts.length == 2) {
60 | return {
61 | name: parts[0],
62 | args: '(' + parts[1]
63 | };
64 | } else {
65 | return false;
66 | }
67 | }
68 |
69 | function increase(bytes) {
70 | bytes[0] += 1;
71 | for (var i = 0; i < bytes.length; ++i) {
72 | if (bytes[i] === 64) {
73 | bytes[i] = 0;
74 | if (i == bytes.length - 1) {
75 | bytes[i + 1] = 1;
76 | } else {
77 | bytes[i + 1] += 1;
78 | }
79 | } else {
80 | break;
81 | }
82 | }
83 | return bytes;
84 | }
85 |
86 | function toChars(bytes) {
87 | var str = '';
88 | for (var i = 0; i < bytes.length; ++i) {
89 | str += CHARS[bytes[i]];
90 | }
91 | return str;
92 | }
93 |
94 | function toCharCodes(bytes) {
95 | var codes = [];
96 | for (var i = 0; i < bytes.length; ++i) {
97 | codes.push(CHAR_CODE_MAP[bytes[i]]);
98 | }
99 | return codes;
100 | }
101 |
102 | function find(obj) {
103 | var sig = obj.name + obj.args;
104 | var args = toBytes(obj.args);
105 | var bytes = [0];
106 | var index = 0;
107 | var prefix = toBytes(obj.name + '_');
108 | var hash = keccak256.create();
109 | hash.update(prefix);
110 | save(hash);
111 | var char, methodId = keccak256.array(sig);
112 | while (methodId[0] || methodId[1]) {
113 | if (index >= CHARS.length) {
114 | increase(bytes);
115 | hash = keccak256.create();
116 | hash.update(prefix);
117 | hash.update(toCharCodes(bytes));
118 | save(hash);
119 | index = 0;
120 | }
121 | char = CHARS[index];
122 | hash.update(char);
123 | hash.update(args);
124 | methodId = hash.array();
125 | restore(hash);
126 | ++index;
127 | }
128 | if (index) {
129 | sig = obj.name + '_' + toChars(bytes) + char + obj.args;
130 | }
131 | return [sig, keccak256(sig).substr(0, 8)];
132 | }
133 |
134 | $(document).ready(function () {
135 | $('#optimize').click(function () {
136 | var input = $('#input').val();
137 | $('#error').hide();;
138 | var data = parseSignature(input);
139 | if (!data) {
140 | $('#error').show();;
141 | return;
142 | }
143 | console.time('a');
144 | var result = find(data);
145 | console.timeEnd('a')
146 | $('#output').append('' + result[0] + ': 0x' + result[1] + '
')
147 | });
148 | });
149 | })(jQuery);
150 |
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/index.html:
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5 | Solidity Optimize Name
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incorrect input
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