1 | import MagicString from 'magic-string';
|
2 | import { createFilter } from '@rollup/pluginutils';
|
3 |
|
4 | function escape(str) {
|
5 | return str.replace(/[-[\]/{}()*+?.\\^$|]/g, '\\$&');
|
6 | }
|
7 |
|
8 | function ensureFunction(functionOrValue) {
|
9 | if (typeof functionOrValue === 'function') { return functionOrValue; }
|
10 | return function () { return functionOrValue; };
|
11 | }
|
12 |
|
13 | function longest(a, b) {
|
14 | return b.length - a.length;
|
15 | }
|
16 |
|
17 | function getReplacements(options) {
|
18 | if (options.values) {
|
19 | return Object.assign({}, options.values);
|
20 | }
|
21 | var values = Object.assign({}, options);
|
22 | delete values.delimiters;
|
23 | delete values.include;
|
24 | delete values.exclude;
|
25 | delete values.sourcemap;
|
26 | delete values.sourceMap;
|
27 | delete values.objectGuards;
|
28 | return values;
|
29 | }
|
30 |
|
31 | function mapToFunctions(object) {
|
32 | return Object.keys(object).reduce(function (fns, key) {
|
33 | var functions = Object.assign({}, fns);
|
34 | functions[key] = ensureFunction(object[key]);
|
35 | return functions;
|
36 | }, {});
|
37 | }
|
38 |
|
39 | var objKeyRegEx =
|
40 | /^([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)(\.([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*))+$/;
|
41 | function expandTypeofReplacements(replacements) {
|
42 | Object.keys(replacements).forEach(function (key) {
|
43 | var objMatch = key.match(objKeyRegEx);
|
44 | if (!objMatch) { return; }
|
45 | var dotIndex = objMatch[1].length;
|
46 | var lastIndex = 0;
|
47 | do {
|
48 |
|
49 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + " ===")] = '"object" ===';
|
50 |
|
51 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + " !==")] = '"object" !==';
|
52 |
|
53 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + "===")] = '"object"===';
|
54 |
|
55 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + "!==")] = '"object"!==';
|
56 |
|
57 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + " ==")] = '"object" ===';
|
58 |
|
59 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + " !=")] = '"object" !==';
|
60 |
|
61 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + "==")] = '"object"===';
|
62 |
|
63 | replacements[("typeof " + (key.slice(lastIndex, dotIndex)) + "!=")] = '"object"!==';
|
64 | lastIndex = dotIndex + 1;
|
65 | dotIndex = key.indexOf('.', lastIndex);
|
66 | } while (dotIndex !== -1);
|
67 | });
|
68 | }
|
69 |
|
70 | function replace(options) {
|
71 | if ( options === void 0 ) options = {};
|
72 |
|
73 | var filter = createFilter(options.include, options.exclude);
|
74 | var delimiters = options.delimiters; if ( delimiters === void 0 ) delimiters = ['\\b', '\\b(?!\\.)'];
|
75 | var preventAssignment = options.preventAssignment;
|
76 | var objectGuards = options.objectGuards;
|
77 | var replacements = getReplacements(options);
|
78 | if (objectGuards) { expandTypeofReplacements(replacements); }
|
79 | var functionValues = mapToFunctions(replacements);
|
80 | var keys = Object.keys(functionValues).sort(longest).map(escape);
|
81 | var lookahead = preventAssignment ? '(?!\\s*=[^=])' : '';
|
82 | var pattern = new RegExp(
|
83 | ((delimiters[0]) + "(" + (keys.join('|')) + ")" + (delimiters[1]) + lookahead),
|
84 | 'g'
|
85 | );
|
86 |
|
87 | return {
|
88 | name: 'replace',
|
89 |
|
90 | buildStart: function buildStart() {
|
91 | if (![true, false].includes(preventAssignment)) {
|
92 | this.warn({
|
93 | message:
|
94 | "@rollup/plugin-replace: 'preventAssignment' currently defaults to false. It is recommended to set this option to `true`, as the next major version will default this option to `true`."
|
95 | });
|
96 | }
|
97 | },
|
98 |
|
99 | renderChunk: function renderChunk(code, chunk) {
|
100 | var id = chunk.fileName;
|
101 | if (!keys.length) { return null; }
|
102 | if (!filter(id)) { return null; }
|
103 | return executeReplacement(code, id);
|
104 | },
|
105 |
|
106 | transform: function transform(code, id) {
|
107 | if (!keys.length) { return null; }
|
108 | if (!filter(id)) { return null; }
|
109 | return executeReplacement(code, id);
|
110 | }
|
111 | };
|
112 |
|
113 | function executeReplacement(code, id) {
|
114 | var magicString = new MagicString(code);
|
115 | if (!codeHasReplacements(code, id, magicString)) {
|
116 | return null;
|
117 | }
|
118 |
|
119 | var result = { code: magicString.toString() };
|
120 | if (isSourceMapEnabled()) {
|
121 | result.map = magicString.generateMap({ hires: true });
|
122 | }
|
123 | return result;
|
124 | }
|
125 |
|
126 | function codeHasReplacements(code, id, magicString) {
|
127 | var result = false;
|
128 | var match;
|
129 |
|
130 |
|
131 | while ((match = pattern.exec(code))) {
|
132 | result = true;
|
133 |
|
134 | var start = match.index;
|
135 | var end = start + match[0].length;
|
136 | var replacement = String(functionValues[match[1]](id));
|
137 | magicString.overwrite(start, end, replacement);
|
138 | }
|
139 | return result;
|
140 | }
|
141 |
|
142 | function isSourceMapEnabled() {
|
143 | return options.sourceMap !== false && options.sourcemap !== false;
|
144 | }
|
145 | }
|
146 |
|
147 | export { replace as default };
|
148 |
|