1 | ;
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2 |
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3 | exports.__esModule = true;
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4 | exports.default = void 0;
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5 |
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6 | var _sourceMap = _interopRequireDefault(require("source-map"));
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7 |
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8 | var _path = _interopRequireDefault(require("path"));
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9 |
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10 | var _fs = _interopRequireDefault(require("fs"));
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11 |
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12 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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13 |
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14 | function fromBase64(str) {
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15 | if (Buffer) {
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16 | return Buffer.from(str, 'base64').toString();
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17 | } else {
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18 | return window.atob(str);
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19 | }
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20 | }
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21 | /**
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22 | * Source map information from input CSS.
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23 | * For example, source map after Sass compiler.
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24 | *
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25 | * This class will automatically find source map in input CSS or in file system
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26 | * near input file (according `from` option).
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27 | *
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28 | * @example
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29 | * const root = postcss.parse(css, { from: 'a.sass.css' })
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30 | * root.input.map //=> PreviousMap
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31 | */
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32 |
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33 |
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34 | var PreviousMap =
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35 | /*#__PURE__*/
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36 | function () {
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37 | /**
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38 | * @param {string} css Input CSS source.
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39 | * @param {processOptions} [opts] {@link Processor#process} options.
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40 | */
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41 | function PreviousMap(css, opts) {
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42 | this.loadAnnotation(css);
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43 | /**
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44 | * Was source map inlined by data-uri to input CSS.
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45 | *
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46 | * @type {boolean}
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47 | */
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48 |
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49 | this.inline = this.startWith(this.annotation, 'data:');
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50 | var prev = opts.map ? opts.map.prev : undefined;
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51 | var text = this.loadMap(opts.from, prev);
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52 | if (text) this.text = text;
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53 | }
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54 | /**
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55 | * Create a instance of `SourceMapGenerator` class
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56 | * from the `source-map` library to work with source map information.
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57 | *
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58 | * It is lazy method, so it will create object only on first call
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59 | * and then it will use cache.
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60 | *
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61 | * @return {SourceMapGenerator} Object with source map information.
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62 | */
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63 |
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64 |
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65 | var _proto = PreviousMap.prototype;
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66 |
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67 | _proto.consumer = function consumer() {
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68 | if (!this.consumerCache) {
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69 | this.consumerCache = new _sourceMap.default.SourceMapConsumer(this.text);
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70 | }
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71 |
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72 | return this.consumerCache;
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73 | }
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74 | /**
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75 | * Does source map contains `sourcesContent` with input source text.
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76 | *
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77 | * @return {boolean} Is `sourcesContent` present.
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78 | */
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79 | ;
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80 |
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81 | _proto.withContent = function withContent() {
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82 | return !!(this.consumer().sourcesContent && this.consumer().sourcesContent.length > 0);
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83 | };
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84 |
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85 | _proto.startWith = function startWith(string, start) {
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86 | if (!string) return false;
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87 | return string.substr(0, start.length) === start;
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88 | };
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89 |
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90 | _proto.loadAnnotation = function loadAnnotation(css) {
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91 | var match = css.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//);
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92 | if (match) this.annotation = match[1].trim();
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93 | };
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94 |
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95 | _proto.decodeInline = function decodeInline(text) {
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96 | var baseCharsetUri = /^data:application\/json;charset=utf-?8;base64,/;
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97 | var baseUri = /^data:application\/json;base64,/;
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98 | var uri = 'data:application/json,';
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99 |
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100 | if (this.startWith(text, uri)) {
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101 | return decodeURIComponent(text.substr(uri.length));
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102 | }
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103 |
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104 | if (baseCharsetUri.test(text) || baseUri.test(text)) {
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105 | return fromBase64(text.substr(RegExp.lastMatch.length));
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106 | }
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107 |
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108 | var encoding = text.match(/data:application\/json;([^,]+),/)[1];
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109 | throw new Error('Unsupported source map encoding ' + encoding);
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110 | };
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111 |
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112 | _proto.loadMap = function loadMap(file, prev) {
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113 | if (prev === false) return false;
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114 |
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115 | if (prev) {
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116 | if (typeof prev === 'string') {
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117 | return prev;
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118 | } else if (typeof prev === 'function') {
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119 | var prevPath = prev(file);
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120 |
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121 | if (prevPath && _fs.default.existsSync && _fs.default.existsSync(prevPath)) {
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122 | return _fs.default.readFileSync(prevPath, 'utf-8').toString().trim();
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123 | } else {
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124 | throw new Error('Unable to load previous source map: ' + prevPath.toString());
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125 | }
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126 | } else if (prev instanceof _sourceMap.default.SourceMapConsumer) {
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127 | return _sourceMap.default.SourceMapGenerator.fromSourceMap(prev).toString();
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128 | } else if (prev instanceof _sourceMap.default.SourceMapGenerator) {
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129 | return prev.toString();
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130 | } else if (this.isMap(prev)) {
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131 | return JSON.stringify(prev);
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132 | } else {
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133 | throw new Error('Unsupported previous source map format: ' + prev.toString());
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134 | }
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135 | } else if (this.inline) {
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136 | return this.decodeInline(this.annotation);
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137 | } else if (this.annotation) {
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138 | var map = this.annotation;
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139 | if (file) map = _path.default.join(_path.default.dirname(file), map);
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140 | this.root = _path.default.dirname(map);
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141 |
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142 | if (_fs.default.existsSync && _fs.default.existsSync(map)) {
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143 | return _fs.default.readFileSync(map, 'utf-8').toString().trim();
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144 | } else {
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145 | return false;
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146 | }
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147 | }
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148 | };
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149 |
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150 | _proto.isMap = function isMap(map) {
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151 | if (typeof map !== 'object') return false;
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152 | return typeof map.mappings === 'string' || typeof map._mappings === 'string';
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153 | };
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154 |
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155 | return PreviousMap;
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156 | }();
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157 |
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158 | var _default = PreviousMap;
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159 | exports.default = _default;
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160 | module.exports = exports.default;
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161 | //# sourceMappingURL=data:application/json;charset=utf8;base64,{"version":3,"sources":["previous-map.es6"],"names":["fromBase64","str","Buffer","from","toString","window","atob","PreviousMap","css","opts","loadAnnotation","inline","startWith","annotation","prev","map","undefined","text","loadMap","consumer","consumerCache","mozilla","SourceMapConsumer","withContent","sourcesContent","length","string","start","substr","match","trim","decodeInline","baseCharsetUri","baseUri","uri","decodeURIComponent","test","RegExp","lastMatch","encoding","Error","file","prevPath","fs","existsSync","readFileSync","SourceMapGenerator","fromSourceMap","isMap","JSON","stringify","path","join","dirname","root","mappings","_mappings"],"mappings":";;;;;AAAA;;AACA;;AACA;;;;AAEA,SAASA,UAAT,CAAqBC,GAArB,EAA0B;AACxB,MAAIC,MAAJ,EAAY;AACV,WAAOA,MAAM,CAACC,IAAP,CAAYF,GAAZ,EAAiB,QAAjB,EAA2BG,QAA3B,EAAP;AACD,GAFD,MAEO;AACL,WAAOC,MAAM,CAACC,IAAP,CAAYL,GAAZ,CAAP;AACD;AACF;AAED;;;;;;;;;;;;;IAWMM,W;;;AACJ;;;;AAIA,uBAAaC,GAAb,EAAkBC,IAAlB,EAAwB;AACtB,SAAKC,cAAL,CAAoBF,GAApB;AACA;;;;;;AAKA,SAAKG,MAAL,GAAc,KAAKC,SAAL,CAAe,KAAKC,UAApB,EAAgC,OAAhC,CAAd;AAEA,QAAIC,IAAI,GAAGL,IAAI,CAACM,GAAL,GAAWN,IAAI,CAACM,GAAL,CAASD,IAApB,GAA2BE,SAAtC;AACA,QAAIC,IAAI,GAAG,KAAKC,OAAL,CAAaT,IAAI,CAACN,IAAlB,EAAwBW,IAAxB,CAAX;AACA,QAAIG,IAAJ,EAAU,KAAKA,IAAL,GAAYA,IAAZ;AACX;AAED;;;;;;;;;;;;;SASAE,Q,GAAA,oBAAY;AACV,QAAI,CAAC,KAAKC,aAAV,EAAyB;AACvB,WAAKA,aAAL,GAAqB,IAAIC,mBAAQC,iBAAZ,CAA8B,KAAKL,IAAnC,CAArB;AACD;;AACD,WAAO,KAAKG,aAAZ;AACD;AAED;;;;;;;SAKAG,W,GAAA,uBAAe;AACb,WAAO,CAAC,EAAE,KAAKJ,QAAL,GAAgBK,cAAhB,IACA,KAAKL,QAAL,GAAgBK,cAAhB,CAA+BC,MAA/B,GAAwC,CAD1C,CAAR;AAED,G;;SAEDb,S,GAAA,mBAAWc,MAAX,EAAmBC,KAAnB,EAA0B;AACxB,QAAI,CAACD,MAAL,EAAa,OAAO,KAAP;AACb,WAAOA,MAAM,CAACE,MAAP,CAAc,CAAd,EAAiBD,KAAK,CAACF,MAAvB,MAAmCE,KAA1C;AACD,G;;SAEDjB,c,GAAA,wBAAgBF,GAAhB,EAAqB;AACnB,QAAIqB,KAAK,GAAGrB,GAAG,CAACqB,KAAJ,CAAU,uCAAV,CAAZ;AACA,QAAIA,KAAJ,EAAW,KAAKhB,UAAL,GAAkBgB,KAAK,CAAC,CAAD,CAAL,CAASC,IAAT,EAAlB;AACZ,G;;SAEDC,Y,GAAA,sBAAcd,IAAd,EAAoB;AAClB,QAAIe,cAAc,GAAG,gDAArB;AACA,QAAIC,OAAO,GAAG,iCAAd;AACA,QAAIC,GAAG,GAAG,wBAAV;;AAEA,QAAI,KAAKtB,SAAL,CAAeK,IAAf,EAAqBiB,GAArB,CAAJ,EAA+B;AAC7B,aAAOC,kBAAkB,CAAClB,IAAI,CAACW,MAAL,CAAYM,GAAG,CAACT,MAAhB,CAAD,CAAzB;AACD;;AAED,QAAIO,cAAc,CAACI,IAAf,CAAoBnB,IAApB,KAA6BgB,OAAO,CAACG,IAAR,CAAanB,IAAb,CAAjC,EAAqD;AACnD,aAAOjB,UAAU,CAACiB,IAAI,CAACW,MAAL,CAAYS,MAAM,CAACC,SAAP,CAAiBb,MAA7B,CAAD,CAAjB;AACD;;AAED,QAAIc,QAAQ,GAAGtB,IAAI,CAACY,KAAL,CAAW,iCAAX,EAA8C,CAA9C,CAAf;AACA,UAAM,IAAIW,KAAJ,CAAU,qCAAqCD,QAA/C,CAAN;AACD,G;;SAEDrB,O,GAAA,iBAASuB,IAAT,EAAe3B,IAAf,EAAqB;AACnB,QAAIA,IAAI,KAAK,KAAb,EAAoB,OAAO,KAAP;;AAEpB,QAAIA,IAAJ,EAAU;AACR,UAAI,OAAOA,IAAP,KAAgB,QAApB,EAA8B;AAC5B,eAAOA,IAAP;AACD,OAFD,MAEO,IAAI,OAAOA,IAAP,KAAgB,UAApB,EAAgC;AACrC,YAAI4B,QAAQ,GAAG5B,IAAI,CAAC2B,IAAD,CAAnB;;AACA,YAAIC,QAAQ,IAAIC,YAAGC,UAAf,IAA6BD,YAAGC,UAAH,CAAcF,QAAd,CAAjC,EAA0D;AACxD,iBAAOC,YAAGE,YAAH,CAAgBH,QAAhB,EAA0B,OAA1B,EAAmCtC,QAAnC,GAA8C0B,IAA9C,EAAP;AACD,SAFD,MAEO;AACL,gBAAM,IAAIU,KAAJ,CACJ,yCAAyCE,QAAQ,CAACtC,QAAT,EADrC,CAAN;AAED;AACF,OARM,MAQA,IAAIU,IAAI,YAAYO,mBAAQC,iBAA5B,EAA+C;AACpD,eAAOD,mBAAQyB,kBAAR,CAA2BC,aAA3B,CAAyCjC,IAAzC,EAA+CV,QAA/C,EAAP;AACD,OAFM,MAEA,IAAIU,IAAI,YAAYO,mBAAQyB,kBAA5B,EAAgD;AACrD,eAAOhC,IAAI,CAACV,QAAL,EAAP;AACD,OAFM,MAEA,IAAI,KAAK4C,KAAL,CAAWlC,IAAX,CAAJ,EAAsB;AAC3B,eAAOmC,IAAI,CAACC,SAAL,CAAepC,IAAf,CAAP;AACD,OAFM,MAEA;AACL,cAAM,IAAI0B,KAAJ,CACJ,6CAA6C1B,IAAI,CAACV,QAAL,EADzC,CAAN;AAED;AACF,KArBD,MAqBO,IAAI,KAAKO,MAAT,EAAiB;AACtB,aAAO,KAAKoB,YAAL,CAAkB,KAAKlB,UAAvB,CAAP;AACD,KAFM,MAEA,IAAI,KAAKA,UAAT,EAAqB;AAC1B,UAAIE,GAAG,GAAG,KAAKF,UAAf;AACA,UAAI4B,IAAJ,EAAU1B,GAAG,GAAGoC,cAAKC,IAAL,CAAUD,cAAKE,OAAL,CAAaZ,IAAb,CAAV,EAA8B1B,GAA9B,CAAN;AAEV,WAAKuC,IAAL,GAAYH,cAAKE,OAAL,CAAatC,GAAb,CAAZ;;AACA,UAAI4B,YAAGC,UAAH,IAAiBD,YAAGC,UAAH,CAAc7B,GAAd,CAArB,EAAyC;AACvC,eAAO4B,YAAGE,YAAH,CAAgB9B,GAAhB,EAAqB,OAArB,EAA8BX,QAA9B,GAAyC0B,IAAzC,EAAP;AACD,OAFD,MAEO;AACL,eAAO,KAAP;AACD;AACF;AACF,G;;SAEDkB,K,GAAA,eAAOjC,GAAP,EAAY;AACV,QAAI,OAAOA,GAAP,KAAe,QAAnB,EAA6B,OAAO,KAAP;AAC7B,WAAO,OAAOA,GAAG,CAACwC,QAAX,KAAwB,QAAxB,IAAoC,OAAOxC,GAAG,CAACyC,SAAX,KAAyB,QAApE;AACD,G;;;;;eAGYjD,W","sourcesContent":["import mozilla from 'source-map'\nimport path from 'path'\nimport fs from 'fs'\n\nfunction fromBase64 (str) {\n  if (Buffer) {\n    return Buffer.from(str, 'base64').toString()\n  } else {\n    return window.atob(str)\n  }\n}\n\n/**\n * Source map information from input CSS.\n * For example, source map after Sass compiler.\n *\n * This class will automatically find source map in input CSS or in file system\n * near input file (according `from` option).\n *\n * @example\n * const root = postcss.parse(css, { from: 'a.sass.css' })\n * root.input.map //=> PreviousMap\n */\nclass PreviousMap {\n  /**\n   * @param {string}         css    Input CSS source.\n   * @param {processOptions} [opts] {@link Processor#process} options.\n   */\n  constructor (css, opts) {\n    this.loadAnnotation(css)\n    /**\n     * Was source map inlined by data-uri to input CSS.\n     *\n     * @type {boolean}\n     */\n    this.inline = this.startWith(this.annotation, 'data:')\n\n    let prev = opts.map ? opts.map.prev : undefined\n    let text = this.loadMap(opts.from, prev)\n    if (text) this.text = text\n  }\n\n  /**\n   * Create a instance of `SourceMapGenerator` class\n   * from the `source-map` library to work with source map information.\n   *\n   * It is lazy method, so it will create object only on first call\n   * and then it will use cache.\n   *\n   * @return {SourceMapGenerator} Object with source map information.\n   */\n  consumer () {\n    if (!this.consumerCache) {\n      this.consumerCache = new mozilla.SourceMapConsumer(this.text)\n    }\n    return this.consumerCache\n  }\n\n  /**\n   * Does source map contains `sourcesContent` with input source text.\n   *\n   * @return {boolean} Is `sourcesContent` present.\n   */\n  withContent () {\n    return !!(this.consumer().sourcesContent &&\n              this.consumer().sourcesContent.length > 0)\n  }\n\n  startWith (string, start) {\n    if (!string) return false\n    return string.substr(0, start.length) === start\n  }\n\n  loadAnnotation (css) {\n    let match = css.match(/\\/\\*\\s*# sourceMappingURL=(.*)\\s*\\*\\//)\n    if (match) this.annotation = match[1].trim()\n  }\n\n  decodeInline (text) {\n    let baseCharsetUri = /^data:application\\/json;charset=utf-?8;base64,/\n    let baseUri = /^data:application\\/json;base64,/\n    let uri = 'data:application/json,'\n\n    if (this.startWith(text, uri)) {\n      return decodeURIComponent(text.substr(uri.length))\n    }\n\n    if (baseCharsetUri.test(text) || baseUri.test(text)) {\n      return fromBase64(text.substr(RegExp.lastMatch.length))\n    }\n\n    let encoding = text.match(/data:application\\/json;([^,]+),/)[1]\n    throw new Error('Unsupported source map encoding ' + encoding)\n  }\n\n  loadMap (file, prev) {\n    if (prev === false) return false\n\n    if (prev) {\n      if (typeof prev === 'string') {\n        return prev\n      } else if (typeof prev === 'function') {\n        let prevPath = prev(file)\n        if (prevPath && fs.existsSync && fs.existsSync(prevPath)) {\n          return fs.readFileSync(prevPath, 'utf-8').toString().trim()\n        } else {\n          throw new Error(\n            'Unable to load previous source map: ' + prevPath.toString())\n        }\n      } else if (prev instanceof mozilla.SourceMapConsumer) {\n        return mozilla.SourceMapGenerator.fromSourceMap(prev).toString()\n      } else if (prev instanceof mozilla.SourceMapGenerator) {\n        return prev.toString()\n      } else if (this.isMap(prev)) {\n        return JSON.stringify(prev)\n      } else {\n        throw new Error(\n          'Unsupported previous source map format: ' + prev.toString())\n      }\n    } else if (this.inline) {\n      return this.decodeInline(this.annotation)\n    } else if (this.annotation) {\n      let map = this.annotation\n      if (file) map = path.join(path.dirname(file), map)\n\n      this.root = path.dirname(map)\n      if (fs.existsSync && fs.existsSync(map)) {\n        return fs.readFileSync(map, 'utf-8').toString().trim()\n      } else {\n        return false\n      }\n    }\n  }\n\n  isMap (map) {\n    if (typeof map !== 'object') return false\n    return typeof map.mappings === 'string' || typeof map._mappings === 'string'\n  }\n}\n\nexport default PreviousMap\n"],"file":"previous-map.js"}
|