source: imaps-frontend/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js

main
Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation
  • Property mode set to 100644
File size: 16.6 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 = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sourcemapCodec = {}));
5})(this, (function (exports) { 'use strict';
6
7 const comma = ','.charCodeAt(0);
8 const semicolon = ';'.charCodeAt(0);
9 const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
10 const intToChar = new Uint8Array(64); // 64 possible chars.
11 const charToInt = new Uint8Array(128); // z is 122 in ASCII
12 for (let i = 0; i < chars.length; i++) {
13 const c = chars.charCodeAt(i);
14 intToChar[i] = c;
15 charToInt[c] = i;
16 }
17 function decodeInteger(reader, relative) {
18 let value = 0;
19 let shift = 0;
20 let integer = 0;
21 do {
22 const c = reader.next();
23 integer = charToInt[c];
24 value |= (integer & 31) << shift;
25 shift += 5;
26 } while (integer & 32);
27 const shouldNegate = value & 1;
28 value >>>= 1;
29 if (shouldNegate) {
30 value = -0x80000000 | -value;
31 }
32 return relative + value;
33 }
34 function encodeInteger(builder, num, relative) {
35 let delta = num - relative;
36 delta = delta < 0 ? (-delta << 1) | 1 : delta << 1;
37 do {
38 let clamped = delta & 0b011111;
39 delta >>>= 5;
40 if (delta > 0)
41 clamped |= 0b100000;
42 builder.write(intToChar[clamped]);
43 } while (delta > 0);
44 return num;
45 }
46 function hasMoreVlq(reader, max) {
47 if (reader.pos >= max)
48 return false;
49 return reader.peek() !== comma;
50 }
51
52 const bufLength = 1024 * 16;
53 // Provide a fallback for older environments.
54 const td = typeof TextDecoder !== 'undefined'
55 ? /* #__PURE__ */ new TextDecoder()
56 : typeof Buffer !== 'undefined'
57 ? {
58 decode(buf) {
59 const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
60 return out.toString();
61 },
62 }
63 : {
64 decode(buf) {
65 let out = '';
66 for (let i = 0; i < buf.length; i++) {
67 out += String.fromCharCode(buf[i]);
68 }
69 return out;
70 },
71 };
72 class StringWriter {
73 constructor() {
74 this.pos = 0;
75 this.out = '';
76 this.buffer = new Uint8Array(bufLength);
77 }
78 write(v) {
79 const { buffer } = this;
80 buffer[this.pos++] = v;
81 if (this.pos === bufLength) {
82 this.out += td.decode(buffer);
83 this.pos = 0;
84 }
85 }
86 flush() {
87 const { buffer, out, pos } = this;
88 return pos > 0 ? out + td.decode(buffer.subarray(0, pos)) : out;
89 }
90 }
91 class StringReader {
92 constructor(buffer) {
93 this.pos = 0;
94 this.buffer = buffer;
95 }
96 next() {
97 return this.buffer.charCodeAt(this.pos++);
98 }
99 peek() {
100 return this.buffer.charCodeAt(this.pos);
101 }
102 indexOf(char) {
103 const { buffer, pos } = this;
104 const idx = buffer.indexOf(char, pos);
105 return idx === -1 ? buffer.length : idx;
106 }
107 }
108
109 const EMPTY = [];
110 function decodeOriginalScopes(input) {
111 const { length } = input;
112 const reader = new StringReader(input);
113 const scopes = [];
114 const stack = [];
115 let line = 0;
116 for (; reader.pos < length; reader.pos++) {
117 line = decodeInteger(reader, line);
118 const column = decodeInteger(reader, 0);
119 if (!hasMoreVlq(reader, length)) {
120 const last = stack.pop();
121 last[2] = line;
122 last[3] = column;
123 continue;
124 }
125 const kind = decodeInteger(reader, 0);
126 const fields = decodeInteger(reader, 0);
127 const hasName = fields & 0b0001;
128 const scope = (hasName ? [line, column, 0, 0, kind, decodeInteger(reader, 0)] : [line, column, 0, 0, kind]);
129 let vars = EMPTY;
130 if (hasMoreVlq(reader, length)) {
131 vars = [];
132 do {
133 const varsIndex = decodeInteger(reader, 0);
134 vars.push(varsIndex);
135 } while (hasMoreVlq(reader, length));
136 }
137 scope.vars = vars;
138 scopes.push(scope);
139 stack.push(scope);
140 }
141 return scopes;
142 }
143 function encodeOriginalScopes(scopes) {
144 const writer = new StringWriter();
145 for (let i = 0; i < scopes.length;) {
146 i = _encodeOriginalScopes(scopes, i, writer, [0]);
147 }
148 return writer.flush();
149 }
150 function _encodeOriginalScopes(scopes, index, writer, state) {
151 const scope = scopes[index];
152 const { 0: startLine, 1: startColumn, 2: endLine, 3: endColumn, 4: kind, vars } = scope;
153 if (index > 0)
154 writer.write(comma);
155 state[0] = encodeInteger(writer, startLine, state[0]);
156 encodeInteger(writer, startColumn, 0);
157 encodeInteger(writer, kind, 0);
158 const fields = scope.length === 6 ? 0b0001 : 0;
159 encodeInteger(writer, fields, 0);
160 if (scope.length === 6)
161 encodeInteger(writer, scope[5], 0);
162 for (const v of vars) {
163 encodeInteger(writer, v, 0);
164 }
165 for (index++; index < scopes.length;) {
166 const next = scopes[index];
167 const { 0: l, 1: c } = next;
168 if (l > endLine || (l === endLine && c >= endColumn)) {
169 break;
170 }
171 index = _encodeOriginalScopes(scopes, index, writer, state);
172 }
173 writer.write(comma);
174 state[0] = encodeInteger(writer, endLine, state[0]);
175 encodeInteger(writer, endColumn, 0);
176 return index;
177 }
178 function decodeGeneratedRanges(input) {
179 const { length } = input;
180 const reader = new StringReader(input);
181 const ranges = [];
182 const stack = [];
183 let genLine = 0;
184 let definitionSourcesIndex = 0;
185 let definitionScopeIndex = 0;
186 let callsiteSourcesIndex = 0;
187 let callsiteLine = 0;
188 let callsiteColumn = 0;
189 let bindingLine = 0;
190 let bindingColumn = 0;
191 do {
192 const semi = reader.indexOf(';');
193 let genColumn = 0;
194 for (; reader.pos < semi; reader.pos++) {
195 genColumn = decodeInteger(reader, genColumn);
196 if (!hasMoreVlq(reader, semi)) {
197 const last = stack.pop();
198 last[2] = genLine;
199 last[3] = genColumn;
200 continue;
201 }
202 const fields = decodeInteger(reader, 0);
203 const hasDefinition = fields & 0b0001;
204 const hasCallsite = fields & 0b0010;
205 const hasScope = fields & 0b0100;
206 let callsite = null;
207 let bindings = EMPTY;
208 let range;
209 if (hasDefinition) {
210 const defSourcesIndex = decodeInteger(reader, definitionSourcesIndex);
211 definitionScopeIndex = decodeInteger(reader, definitionSourcesIndex === defSourcesIndex ? definitionScopeIndex : 0);
212 definitionSourcesIndex = defSourcesIndex;
213 range = [genLine, genColumn, 0, 0, defSourcesIndex, definitionScopeIndex];
214 }
215 else {
216 range = [genLine, genColumn, 0, 0];
217 }
218 range.isScope = !!hasScope;
219 if (hasCallsite) {
220 const prevCsi = callsiteSourcesIndex;
221 const prevLine = callsiteLine;
222 callsiteSourcesIndex = decodeInteger(reader, callsiteSourcesIndex);
223 const sameSource = prevCsi === callsiteSourcesIndex;
224 callsiteLine = decodeInteger(reader, sameSource ? callsiteLine : 0);
225 callsiteColumn = decodeInteger(reader, sameSource && prevLine === callsiteLine ? callsiteColumn : 0);
226 callsite = [callsiteSourcesIndex, callsiteLine, callsiteColumn];
227 }
228 range.callsite = callsite;
229 if (hasMoreVlq(reader, semi)) {
230 bindings = [];
231 do {
232 bindingLine = genLine;
233 bindingColumn = genColumn;
234 const expressionsCount = decodeInteger(reader, 0);
235 let expressionRanges;
236 if (expressionsCount < -1) {
237 expressionRanges = [[decodeInteger(reader, 0)]];
238 for (let i = -1; i > expressionsCount; i--) {
239 const prevBl = bindingLine;
240 bindingLine = decodeInteger(reader, bindingLine);
241 bindingColumn = decodeInteger(reader, bindingLine === prevBl ? bindingColumn : 0);
242 const expression = decodeInteger(reader, 0);
243 expressionRanges.push([expression, bindingLine, bindingColumn]);
244 }
245 }
246 else {
247 expressionRanges = [[expressionsCount]];
248 }
249 bindings.push(expressionRanges);
250 } while (hasMoreVlq(reader, semi));
251 }
252 range.bindings = bindings;
253 ranges.push(range);
254 stack.push(range);
255 }
256 genLine++;
257 reader.pos = semi + 1;
258 } while (reader.pos < length);
259 return ranges;
260 }
261 function encodeGeneratedRanges(ranges) {
262 if (ranges.length === 0)
263 return '';
264 const writer = new StringWriter();
265 for (let i = 0; i < ranges.length;) {
266 i = _encodeGeneratedRanges(ranges, i, writer, [0, 0, 0, 0, 0, 0, 0]);
267 }
268 return writer.flush();
269 }
270 function _encodeGeneratedRanges(ranges, index, writer, state) {
271 const range = ranges[index];
272 const { 0: startLine, 1: startColumn, 2: endLine, 3: endColumn, isScope, callsite, bindings, } = range;
273 if (state[0] < startLine) {
274 catchupLine(writer, state[0], startLine);
275 state[0] = startLine;
276 state[1] = 0;
277 }
278 else if (index > 0) {
279 writer.write(comma);
280 }
281 state[1] = encodeInteger(writer, range[1], state[1]);
282 const fields = (range.length === 6 ? 0b0001 : 0) | (callsite ? 0b0010 : 0) | (isScope ? 0b0100 : 0);
283 encodeInteger(writer, fields, 0);
284 if (range.length === 6) {
285 const { 4: sourcesIndex, 5: scopesIndex } = range;
286 if (sourcesIndex !== state[2]) {
287 state[3] = 0;
288 }
289 state[2] = encodeInteger(writer, sourcesIndex, state[2]);
290 state[3] = encodeInteger(writer, scopesIndex, state[3]);
291 }
292 if (callsite) {
293 const { 0: sourcesIndex, 1: callLine, 2: callColumn } = range.callsite;
294 if (sourcesIndex !== state[4]) {
295 state[5] = 0;
296 state[6] = 0;
297 }
298 else if (callLine !== state[5]) {
299 state[6] = 0;
300 }
301 state[4] = encodeInteger(writer, sourcesIndex, state[4]);
302 state[5] = encodeInteger(writer, callLine, state[5]);
303 state[6] = encodeInteger(writer, callColumn, state[6]);
304 }
305 if (bindings) {
306 for (const binding of bindings) {
307 if (binding.length > 1)
308 encodeInteger(writer, -binding.length, 0);
309 const expression = binding[0][0];
310 encodeInteger(writer, expression, 0);
311 let bindingStartLine = startLine;
312 let bindingStartColumn = startColumn;
313 for (let i = 1; i < binding.length; i++) {
314 const expRange = binding[i];
315 bindingStartLine = encodeInteger(writer, expRange[1], bindingStartLine);
316 bindingStartColumn = encodeInteger(writer, expRange[2], bindingStartColumn);
317 encodeInteger(writer, expRange[0], 0);
318 }
319 }
320 }
321 for (index++; index < ranges.length;) {
322 const next = ranges[index];
323 const { 0: l, 1: c } = next;
324 if (l > endLine || (l === endLine && c >= endColumn)) {
325 break;
326 }
327 index = _encodeGeneratedRanges(ranges, index, writer, state);
328 }
329 if (state[0] < endLine) {
330 catchupLine(writer, state[0], endLine);
331 state[0] = endLine;
332 state[1] = 0;
333 }
334 else {
335 writer.write(comma);
336 }
337 state[1] = encodeInteger(writer, endColumn, state[1]);
338 return index;
339 }
340 function catchupLine(writer, lastLine, line) {
341 do {
342 writer.write(semicolon);
343 } while (++lastLine < line);
344 }
345
346 function decode(mappings) {
347 const { length } = mappings;
348 const reader = new StringReader(mappings);
349 const decoded = [];
350 let genColumn = 0;
351 let sourcesIndex = 0;
352 let sourceLine = 0;
353 let sourceColumn = 0;
354 let namesIndex = 0;
355 do {
356 const semi = reader.indexOf(';');
357 const line = [];
358 let sorted = true;
359 let lastCol = 0;
360 genColumn = 0;
361 while (reader.pos < semi) {
362 let seg;
363 genColumn = decodeInteger(reader, genColumn);
364 if (genColumn < lastCol)
365 sorted = false;
366 lastCol = genColumn;
367 if (hasMoreVlq(reader, semi)) {
368 sourcesIndex = decodeInteger(reader, sourcesIndex);
369 sourceLine = decodeInteger(reader, sourceLine);
370 sourceColumn = decodeInteger(reader, sourceColumn);
371 if (hasMoreVlq(reader, semi)) {
372 namesIndex = decodeInteger(reader, namesIndex);
373 seg = [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex];
374 }
375 else {
376 seg = [genColumn, sourcesIndex, sourceLine, sourceColumn];
377 }
378 }
379 else {
380 seg = [genColumn];
381 }
382 line.push(seg);
383 reader.pos++;
384 }
385 if (!sorted)
386 sort(line);
387 decoded.push(line);
388 reader.pos = semi + 1;
389 } while (reader.pos <= length);
390 return decoded;
391 }
392 function sort(line) {
393 line.sort(sortComparator);
394 }
395 function sortComparator(a, b) {
396 return a[0] - b[0];
397 }
398 function encode(decoded) {
399 const writer = new StringWriter();
400 let sourcesIndex = 0;
401 let sourceLine = 0;
402 let sourceColumn = 0;
403 let namesIndex = 0;
404 for (let i = 0; i < decoded.length; i++) {
405 const line = decoded[i];
406 if (i > 0)
407 writer.write(semicolon);
408 if (line.length === 0)
409 continue;
410 let genColumn = 0;
411 for (let j = 0; j < line.length; j++) {
412 const segment = line[j];
413 if (j > 0)
414 writer.write(comma);
415 genColumn = encodeInteger(writer, segment[0], genColumn);
416 if (segment.length === 1)
417 continue;
418 sourcesIndex = encodeInteger(writer, segment[1], sourcesIndex);
419 sourceLine = encodeInteger(writer, segment[2], sourceLine);
420 sourceColumn = encodeInteger(writer, segment[3], sourceColumn);
421 if (segment.length === 4)
422 continue;
423 namesIndex = encodeInteger(writer, segment[4], namesIndex);
424 }
425 }
426 return writer.flush();
427 }
428
429 exports.decode = decode;
430 exports.decodeGeneratedRanges = decodeGeneratedRanges;
431 exports.decodeOriginalScopes = decodeOriginalScopes;
432 exports.encode = encode;
433 exports.encodeGeneratedRanges = encodeGeneratedRanges;
434 exports.encodeOriginalScopes = encodeOriginalScopes;
435
436 Object.defineProperty(exports, '__esModule', { value: true });
437
438}));
439//# sourceMappingURL=sourcemap-codec.umd.js.map
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