source: trip-planner-front/node_modules/sourcemap-codec/dist/sourcemap-codec.umd.js@ eed0bf8

Last change on this file since eed0bf8 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 4.6 KB
Line 
1(function (global, factory) {
2 typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
3 typeof define === 'function' && define.amd ? define(['exports'], factory) :
4 (global = global || self, factory(global.sourcemapCodec = {}));
5}(this, function (exports) { 'use strict';
6
7 var charToInteger = {};
8 var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
9 for (var i = 0; i < chars.length; i++) {
10 charToInteger[chars.charCodeAt(i)] = i;
11 }
12 function decode(mappings) {
13 var decoded = [];
14 var line = [];
15 var segment = [
16 0,
17 0,
18 0,
19 0,
20 0,
21 ];
22 var j = 0;
23 for (var i = 0, shift = 0, value = 0; i < mappings.length; i++) {
24 var c = mappings.charCodeAt(i);
25 if (c === 44) { // ","
26 segmentify(line, segment, j);
27 j = 0;
28 }
29 else if (c === 59) { // ";"
30 segmentify(line, segment, j);
31 j = 0;
32 decoded.push(line);
33 line = [];
34 segment[0] = 0;
35 }
36 else {
37 var integer = charToInteger[c];
38 if (integer === undefined) {
39 throw new Error('Invalid character (' + String.fromCharCode(c) + ')');
40 }
41 var hasContinuationBit = integer & 32;
42 integer &= 31;
43 value += integer << shift;
44 if (hasContinuationBit) {
45 shift += 5;
46 }
47 else {
48 var shouldNegate = value & 1;
49 value >>>= 1;
50 if (shouldNegate) {
51 value = value === 0 ? -0x80000000 : -value;
52 }
53 segment[j] += value;
54 j++;
55 value = shift = 0; // reset
56 }
57 }
58 }
59 segmentify(line, segment, j);
60 decoded.push(line);
61 return decoded;
62 }
63 function segmentify(line, segment, j) {
64 // This looks ugly, but we're creating specialized arrays with a specific
65 // length. This is much faster than creating a new array (which v8 expands to
66 // a capacity of 17 after pushing the first item), or slicing out a subarray
67 // (which is slow). Length 4 is assumed to be the most frequent, followed by
68 // length 5 (since not everything will have an associated name), followed by
69 // length 1 (it's probably rare for a source substring to not have an
70 // associated segment data).
71 if (j === 4)
72 line.push([segment[0], segment[1], segment[2], segment[3]]);
73 else if (j === 5)
74 line.push([segment[0], segment[1], segment[2], segment[3], segment[4]]);
75 else if (j === 1)
76 line.push([segment[0]]);
77 }
78 function encode(decoded) {
79 var sourceFileIndex = 0; // second field
80 var sourceCodeLine = 0; // third field
81 var sourceCodeColumn = 0; // fourth field
82 var nameIndex = 0; // fifth field
83 var mappings = '';
84 for (var i = 0; i < decoded.length; i++) {
85 var line = decoded[i];
86 if (i > 0)
87 mappings += ';';
88 if (line.length === 0)
89 continue;
90 var generatedCodeColumn = 0; // first field
91 var lineMappings = [];
92 for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
93 var segment = line_1[_i];
94 var segmentMappings = encodeInteger(segment[0] - generatedCodeColumn);
95 generatedCodeColumn = segment[0];
96 if (segment.length > 1) {
97 segmentMappings +=
98 encodeInteger(segment[1] - sourceFileIndex) +
99 encodeInteger(segment[2] - sourceCodeLine) +
100 encodeInteger(segment[3] - sourceCodeColumn);
101 sourceFileIndex = segment[1];
102 sourceCodeLine = segment[2];
103 sourceCodeColumn = segment[3];
104 }
105 if (segment.length === 5) {
106 segmentMappings += encodeInteger(segment[4] - nameIndex);
107 nameIndex = segment[4];
108 }
109 lineMappings.push(segmentMappings);
110 }
111 mappings += lineMappings.join(',');
112 }
113 return mappings;
114 }
115 function encodeInteger(num) {
116 var result = '';
117 num = num < 0 ? (-num << 1) | 1 : num << 1;
118 do {
119 var clamped = num & 31;
120 num >>>= 5;
121 if (num > 0) {
122 clamped |= 32;
123 }
124 result += chars[clamped];
125 } while (num > 0);
126 return result;
127 }
128
129 exports.decode = decode;
130 exports.encode = encode;
131
132 Object.defineProperty(exports, '__esModule', { value: true });
133
134}));
135//# sourceMappingURL=sourcemap-codec.umd.js.map
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