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1243 lines
49 KiB
1243 lines
49 KiB
4 weeks ago
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sourceMap = {}));
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})(this, (function (exports) { 'use strict';
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const comma = ','.charCodeAt(0);
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const semicolon = ';'.charCodeAt(0);
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const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
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const intToChar = new Uint8Array(64); // 64 possible chars.
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const charToInt = new Uint8Array(128); // z is 122 in ASCII
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for (let i = 0; i < chars.length; i++) {
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const c = chars.charCodeAt(i);
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intToChar[i] = c;
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charToInt[c] = i;
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}
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// Provide a fallback for older environments.
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const td = typeof TextDecoder !== 'undefined'
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? /* #__PURE__ */ new TextDecoder()
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: typeof Buffer !== 'undefined'
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? {
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decode(buf) {
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const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
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return out.toString();
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},
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}
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: {
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decode(buf) {
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let out = '';
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for (let i = 0; i < buf.length; i++) {
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out += String.fromCharCode(buf[i]);
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}
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return out;
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},
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};
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function decode(mappings) {
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const state = new Int32Array(5);
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const decoded = [];
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let index = 0;
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do {
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const semi = indexOf(mappings, index);
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const line = [];
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let sorted = true;
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let lastCol = 0;
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state[0] = 0;
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for (let i = index; i < semi; i++) {
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let seg;
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i = decodeInteger(mappings, i, state, 0); // genColumn
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const col = state[0];
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if (col < lastCol)
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sorted = false;
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lastCol = col;
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if (hasMoreVlq(mappings, i, semi)) {
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i = decodeInteger(mappings, i, state, 1); // sourcesIndex
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i = decodeInteger(mappings, i, state, 2); // sourceLine
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i = decodeInteger(mappings, i, state, 3); // sourceColumn
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if (hasMoreVlq(mappings, i, semi)) {
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i = decodeInteger(mappings, i, state, 4); // namesIndex
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seg = [col, state[1], state[2], state[3], state[4]];
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}
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else {
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seg = [col, state[1], state[2], state[3]];
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}
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}
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else {
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seg = [col];
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}
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line.push(seg);
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}
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if (!sorted)
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sort(line);
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decoded.push(line);
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index = semi + 1;
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} while (index <= mappings.length);
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return decoded;
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}
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function indexOf(mappings, index) {
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const idx = mappings.indexOf(';', index);
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return idx === -1 ? mappings.length : idx;
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}
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function decodeInteger(mappings, pos, state, j) {
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let value = 0;
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let shift = 0;
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let integer = 0;
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do {
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const c = mappings.charCodeAt(pos++);
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integer = charToInt[c];
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value |= (integer & 31) << shift;
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shift += 5;
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} while (integer & 32);
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const shouldNegate = value & 1;
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value >>>= 1;
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if (shouldNegate) {
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value = -0x80000000 | -value;
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}
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state[j] += value;
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return pos;
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}
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function hasMoreVlq(mappings, i, length) {
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if (i >= length)
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return false;
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return mappings.charCodeAt(i) !== comma;
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}
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function sort(line) {
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line.sort(sortComparator$1);
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}
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function sortComparator$1(a, b) {
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return a[0] - b[0];
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}
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function encode(decoded) {
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const state = new Int32Array(5);
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const bufLength = 1024 * 16;
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const subLength = bufLength - 36;
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const buf = new Uint8Array(bufLength);
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const sub = buf.subarray(0, subLength);
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let pos = 0;
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let out = '';
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for (let i = 0; i < decoded.length; i++) {
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const line = decoded[i];
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if (i > 0) {
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if (pos === bufLength) {
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out += td.decode(buf);
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pos = 0;
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}
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buf[pos++] = semicolon;
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}
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if (line.length === 0)
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continue;
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state[0] = 0;
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for (let j = 0; j < line.length; j++) {
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const segment = line[j];
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// We can push up to 5 ints, each int can take at most 7 chars, and we
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// may push a comma.
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if (pos > subLength) {
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out += td.decode(sub);
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buf.copyWithin(0, subLength, pos);
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pos -= subLength;
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}
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if (j > 0)
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buf[pos++] = comma;
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pos = encodeInteger(buf, pos, state, segment, 0); // genColumn
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if (segment.length === 1)
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continue;
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pos = encodeInteger(buf, pos, state, segment, 1); // sourcesIndex
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pos = encodeInteger(buf, pos, state, segment, 2); // sourceLine
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pos = encodeInteger(buf, pos, state, segment, 3); // sourceColumn
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if (segment.length === 4)
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continue;
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pos = encodeInteger(buf, pos, state, segment, 4); // namesIndex
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}
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}
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return out + td.decode(buf.subarray(0, pos));
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}
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function encodeInteger(buf, pos, state, segment, j) {
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const next = segment[j];
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let num = next - state[j];
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state[j] = next;
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num = num < 0 ? (-num << 1) | 1 : num << 1;
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do {
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let clamped = num & 0b011111;
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num >>>= 5;
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if (num > 0)
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clamped |= 0b100000;
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buf[pos++] = intToChar[clamped];
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} while (num > 0);
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return pos;
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}
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// Matches the scheme of a URL, eg "http://"
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const schemeRegex = /^[\w+.-]+:\/\//;
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/**
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* Matches the parts of a URL:
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* 1. Scheme, including ":", guaranteed.
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* 2. User/password, including "@", optional.
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* 3. Host, guaranteed.
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* 4. Port, including ":", optional.
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* 5. Path, including "/", optional.
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* 6. Query, including "?", optional.
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* 7. Hash, including "#", optional.
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*/
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const urlRegex = /^([\w+.-]+:)\/\/([^@/#?]*@)?([^:/#?]*)(:\d+)?(\/[^#?]*)?(\?[^#]*)?(#.*)?/;
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/**
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* File URLs are weird. They dont' need the regular `//` in the scheme, they may or may not start
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* with a leading `/`, they can have a domain (but only if they don't start with a Windows drive).
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*
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* 1. Host, optional.
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* 2. Path, which may include "/", guaranteed.
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* 3. Query, including "?", optional.
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* 4. Hash, including "#", optional.
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*/
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const fileRegex = /^file:(?:\/\/((?![a-z]:)[^/#?]*)?)?(\/?[^#?]*)(\?[^#]*)?(#.*)?/i;
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function isAbsoluteUrl(input) {
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return schemeRegex.test(input);
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}
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function isSchemeRelativeUrl(input) {
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return input.startsWith('//');
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}
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function isAbsolutePath(input) {
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return input.startsWith('/');
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}
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function isFileUrl(input) {
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return input.startsWith('file:');
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}
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function isRelative(input) {
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return /^[.?#]/.test(input);
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}
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function parseAbsoluteUrl(input) {
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const match = urlRegex.exec(input);
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return makeUrl(match[1], match[2] || '', match[3], match[4] || '', match[5] || '/', match[6] || '', match[7] || '');
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||
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}
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function parseFileUrl(input) {
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const match = fileRegex.exec(input);
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const path = match[2];
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return makeUrl('file:', '', match[1] || '', '', isAbsolutePath(path) ? path : '/' + path, match[3] || '', match[4] || '');
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}
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function makeUrl(scheme, user, host, port, path, query, hash) {
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return {
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scheme,
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user,
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host,
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port,
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path,
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query,
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hash,
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type: 7 /* Absolute */,
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};
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||
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}
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||
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function parseUrl(input) {
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||
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if (isSchemeRelativeUrl(input)) {
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||
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const url = parseAbsoluteUrl('http:' + input);
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url.scheme = '';
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url.type = 6 /* SchemeRelative */;
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return url;
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}
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if (isAbsolutePath(input)) {
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const url = parseAbsoluteUrl('http://foo.com' + input);
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url.scheme = '';
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url.host = '';
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url.type = 5 /* AbsolutePath */;
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return url;
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}
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if (isFileUrl(input))
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return parseFileUrl(input);
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if (isAbsoluteUrl(input))
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return parseAbsoluteUrl(input);
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const url = parseAbsoluteUrl('http://foo.com/' + input);
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url.scheme = '';
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url.host = '';
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url.type = input
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? input.startsWith('?')
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? 3 /* Query */
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: input.startsWith('#')
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? 2 /* Hash */
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: 4 /* RelativePath */
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: 1 /* Empty */;
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return url;
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||
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}
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||
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function stripPathFilename(path) {
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// If a path ends with a parent directory "..", then it's a relative path with excess parent
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// paths. It's not a file, so we can't strip it.
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if (path.endsWith('/..'))
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return path;
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const index = path.lastIndexOf('/');
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return path.slice(0, index + 1);
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}
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function mergePaths(url, base) {
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normalizePath(base, base.type);
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// If the path is just a "/", then it was an empty path to begin with (remember, we're a relative
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// path).
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if (url.path === '/') {
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url.path = base.path;
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}
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else {
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// Resolution happens relative to the base path's directory, not the file.
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url.path = stripPathFilename(base.path) + url.path;
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}
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}
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/**
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* The path can have empty directories "//", unneeded parents "foo/..", or current directory
|
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* "foo/.". We need to normalize to a standard representation.
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*/
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function normalizePath(url, type) {
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const rel = type <= 4 /* RelativePath */;
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const pieces = url.path.split('/');
|
||
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// We need to preserve the first piece always, so that we output a leading slash. The item at
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// pieces[0] is an empty string.
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let pointer = 1;
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||
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// Positive is the number of real directories we've output, used for popping a parent directory.
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||
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// Eg, "foo/bar/.." will have a positive 2, and we can decrement to be left with just "foo".
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let positive = 0;
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// We need to keep a trailing slash if we encounter an empty directory (eg, splitting "foo/" will
|
||
|
|
// generate `["foo", ""]` pieces). And, if we pop a parent directory. But once we encounter a
|
||
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|
// real directory, we won't need to append, unless the other conditions happen again.
|
||
|
|
let addTrailingSlash = false;
|
||
|
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for (let i = 1; i < pieces.length; i++) {
|
||
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|
const piece = pieces[i];
|
||
|
|
// An empty directory, could be a trailing slash, or just a double "//" in the path.
|
||
|
|
if (!piece) {
|
||
|
|
addTrailingSlash = true;
|
||
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|
continue;
|
||
|
|
}
|
||
|
|
// If we encounter a real directory, then we don't need to append anymore.
|
||
|
|
addTrailingSlash = false;
|
||
|
|
// A current directory, which we can always drop.
|
||
|
|
if (piece === '.')
|
||
|
|
continue;
|
||
|
|
// A parent directory, we need to see if there are any real directories we can pop. Else, we
|
||
|
|
// have an excess of parents, and we'll need to keep the "..".
|
||
|
|
if (piece === '..') {
|
||
|
|
if (positive) {
|
||
|
|
addTrailingSlash = true;
|
||
|
|
positive--;
|
||
|
|
pointer--;
|
||
|
|
}
|
||
|
|
else if (rel) {
|
||
|
|
// If we're in a relativePath, then we need to keep the excess parents. Else, in an absolute
|
||
|
|
// URL, protocol relative URL, or an absolute path, we don't need to keep excess.
|
||
|
|
pieces[pointer++] = piece;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
// We've encountered a real directory. Move it to the next insertion pointer, which accounts for
|
||
|
|
// any popped or dropped directories.
|
||
|
|
pieces[pointer++] = piece;
|
||
|
|
positive++;
|
||
|
|
}
|
||
|
|
let path = '';
|
||
|
|
for (let i = 1; i < pointer; i++) {
|
||
|
|
path += '/' + pieces[i];
|
||
|
|
}
|
||
|
|
if (!path || (addTrailingSlash && !path.endsWith('/..'))) {
|
||
|
|
path += '/';
|
||
|
|
}
|
||
|
|
url.path = path;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Attempts to resolve `input` URL/path relative to `base`.
|
||
|
|
*/
|
||
|
|
function resolve$1(input, base) {
|
||
|
|
if (!input && !base)
|
||
|
|
return '';
|
||
|
|
const url = parseUrl(input);
|
||
|
|
let inputType = url.type;
|
||
|
|
if (base && inputType !== 7 /* Absolute */) {
|
||
|
|
const baseUrl = parseUrl(base);
|
||
|
|
const baseType = baseUrl.type;
|
||
|
|
switch (inputType) {
|
||
|
|
case 1 /* Empty */:
|
||
|
|
url.hash = baseUrl.hash;
|
||
|
|
// fall through
|
||
|
|
case 2 /* Hash */:
|
||
|
|
url.query = baseUrl.query;
|
||
|
|
// fall through
|
||
|
|
case 3 /* Query */:
|
||
|
|
case 4 /* RelativePath */:
|
||
|
|
mergePaths(url, baseUrl);
|
||
|
|
// fall through
|
||
|
|
case 5 /* AbsolutePath */:
|
||
|
|
// The host, user, and port are joined, you can't copy one without the others.
|
||
|
|
url.user = baseUrl.user;
|
||
|
|
url.host = baseUrl.host;
|
||
|
|
url.port = baseUrl.port;
|
||
|
|
// fall through
|
||
|
|
case 6 /* SchemeRelative */:
|
||
|
|
// The input doesn't have a schema at least, so we need to copy at least that over.
|
||
|
|
url.scheme = baseUrl.scheme;
|
||
|
|
}
|
||
|
|
if (baseType > inputType)
|
||
|
|
inputType = baseType;
|
||
|
|
}
|
||
|
|
normalizePath(url, inputType);
|
||
|
|
const queryHash = url.query + url.hash;
|
||
|
|
switch (inputType) {
|
||
|
|
// This is impossible, because of the empty checks at the start of the function.
|
||
|
|
// case UrlType.Empty:
|
||
|
|
case 2 /* Hash */:
|
||
|
|
case 3 /* Query */:
|
||
|
|
return queryHash;
|
||
|
|
case 4 /* RelativePath */: {
|
||
|
|
// The first char is always a "/", and we need it to be relative.
|
||
|
|
const path = url.path.slice(1);
|
||
|
|
if (!path)
|
||
|
|
return queryHash || '.';
|
||
|
|
if (isRelative(base || input) && !isRelative(path)) {
|
||
|
|
// If base started with a leading ".", or there is no base and input started with a ".",
|
||
|
|
// then we need to ensure that the relative path starts with a ".". We don't know if
|
||
|
|
// relative starts with a "..", though, so check before prepending.
|
||
|
|
return './' + path + queryHash;
|
||
|
|
}
|
||
|
|
return path + queryHash;
|
||
|
|
}
|
||
|
|
case 5 /* AbsolutePath */:
|
||
|
|
return url.path + queryHash;
|
||
|
|
default:
|
||
|
|
return url.scheme + '//' + url.user + url.host + url.port + url.path + queryHash;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function resolve(input, base) {
|
||
|
|
// The base is always treated as a directory, if it's not empty.
|
||
|
|
// https://github.com/mozilla/source-map/blob/8cb3ee57/lib/util.js#L327
|
||
|
|
// https://github.com/chromium/chromium/blob/da4adbb3/third_party/blink/renderer/devtools/front_end/sdk/SourceMap.js#L400-L401
|
||
|
|
if (base && !base.endsWith('/'))
|
||
|
|
base += '/';
|
||
|
|
return resolve$1(input, base);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes everything after the last "/", but leaves the slash.
|
||
|
|
*/
|
||
|
|
function stripFilename(path) {
|
||
|
|
if (!path)
|
||
|
|
return '';
|
||
|
|
const index = path.lastIndexOf('/');
|
||
|
|
return path.slice(0, index + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
const COLUMN$1 = 0;
|
||
|
|
const SOURCES_INDEX$1 = 1;
|
||
|
|
const SOURCE_LINE$1 = 2;
|
||
|
|
const SOURCE_COLUMN$1 = 3;
|
||
|
|
const NAMES_INDEX$1 = 4;
|
||
|
|
const REV_GENERATED_LINE = 1;
|
||
|
|
const REV_GENERATED_COLUMN = 2;
|
||
|
|
|
||
|
|
function maybeSort(mappings, owned) {
|
||
|
|
const unsortedIndex = nextUnsortedSegmentLine(mappings, 0);
|
||
|
|
if (unsortedIndex === mappings.length)
|
||
|
|
return mappings;
|
||
|
|
// If we own the array (meaning we parsed it from JSON), then we're free to directly mutate it. If
|
||
|
|
// not, we do not want to modify the consumer's input array.
|
||
|
|
if (!owned)
|
||
|
|
mappings = mappings.slice();
|
||
|
|
for (let i = unsortedIndex; i < mappings.length; i = nextUnsortedSegmentLine(mappings, i + 1)) {
|
||
|
|
mappings[i] = sortSegments(mappings[i], owned);
|
||
|
|
}
|
||
|
|
return mappings;
|
||
|
|
}
|
||
|
|
function nextUnsortedSegmentLine(mappings, start) {
|
||
|
|
for (let i = start; i < mappings.length; i++) {
|
||
|
|
if (!isSorted(mappings[i]))
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
return mappings.length;
|
||
|
|
}
|
||
|
|
function isSorted(line) {
|
||
|
|
for (let j = 1; j < line.length; j++) {
|
||
|
|
if (line[j][COLUMN$1] < line[j - 1][COLUMN$1]) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
function sortSegments(line, owned) {
|
||
|
|
if (!owned)
|
||
|
|
line = line.slice();
|
||
|
|
return line.sort(sortComparator);
|
||
|
|
}
|
||
|
|
function sortComparator(a, b) {
|
||
|
|
return a[COLUMN$1] - b[COLUMN$1];
|
||
|
|
}
|
||
|
|
|
||
|
|
let found = false;
|
||
|
|
/**
|
||
|
|
* A binary search implementation that returns the index if a match is found.
|
||
|
|
* If no match is found, then the left-index (the index associated with the item that comes just
|
||
|
|
* before the desired index) is returned. To maintain proper sort order, a splice would happen at
|
||
|
|
* the next index:
|
||
|
|
*
|
||
|
|
* ```js
|
||
|
|
* const array = [1, 3];
|
||
|
|
* const needle = 2;
|
||
|
|
* const index = binarySearch(array, needle, (item, needle) => item - needle);
|
||
|
|
*
|
||
|
|
* assert.equal(index, 0);
|
||
|
|
* array.splice(index + 1, 0, needle);
|
||
|
|
* assert.deepEqual(array, [1, 2, 3]);
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
function binarySearch(haystack, needle, low, high) {
|
||
|
|
while (low <= high) {
|
||
|
|
const mid = low + ((high - low) >> 1);
|
||
|
|
const cmp = haystack[mid][COLUMN$1] - needle;
|
||
|
|
if (cmp === 0) {
|
||
|
|
found = true;
|
||
|
|
return mid;
|
||
|
|
}
|
||
|
|
if (cmp < 0) {
|
||
|
|
low = mid + 1;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
high = mid - 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
found = false;
|
||
|
|
return low - 1;
|
||
|
|
}
|
||
|
|
function upperBound(haystack, needle, index) {
|
||
|
|
for (let i = index + 1; i < haystack.length; index = i++) {
|
||
|
|
if (haystack[i][COLUMN$1] !== needle)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
function lowerBound(haystack, needle, index) {
|
||
|
|
for (let i = index - 1; i >= 0; index = i--) {
|
||
|
|
if (haystack[i][COLUMN$1] !== needle)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
function memoizedState() {
|
||
|
|
return {
|
||
|
|
lastKey: -1,
|
||
|
|
lastNeedle: -1,
|
||
|
|
lastIndex: -1,
|
||
|
|
};
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* This overly complicated beast is just to record the last tested line/column and the resulting
|
||
|
|
* index, allowing us to skip a few tests if mappings are monotonically increasing.
|
||
|
|
*/
|
||
|
|
function memoizedBinarySearch(haystack, needle, state, key) {
|
||
|
|
const { lastKey, lastNeedle, lastIndex } = state;
|
||
|
|
let low = 0;
|
||
|
|
let high = haystack.length - 1;
|
||
|
|
if (key === lastKey) {
|
||
|
|
if (needle === lastNeedle) {
|
||
|
|
found = lastIndex !== -1 && haystack[lastIndex][COLUMN$1] === needle;
|
||
|
|
return lastIndex;
|
||
|
|
}
|
||
|
|
if (needle >= lastNeedle) {
|
||
|
|
// lastIndex may be -1 if the previous needle was not found.
|
||
|
|
low = lastIndex === -1 ? 0 : lastIndex;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
high = lastIndex;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
state.lastKey = key;
|
||
|
|
state.lastNeedle = needle;
|
||
|
|
return (state.lastIndex = binarySearch(haystack, needle, low, high));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Rebuilds the original source files, with mappings that are ordered by source line/column instead
|
||
|
|
// of generated line/column.
|
||
|
|
function buildBySources(decoded, memos) {
|
||
|
|
const sources = memos.map(buildNullArray);
|
||
|
|
for (let i = 0; i < decoded.length; i++) {
|
||
|
|
const line = decoded[i];
|
||
|
|
for (let j = 0; j < line.length; j++) {
|
||
|
|
const seg = line[j];
|
||
|
|
if (seg.length === 1)
|
||
|
|
continue;
|
||
|
|
const sourceIndex = seg[SOURCES_INDEX$1];
|
||
|
|
const sourceLine = seg[SOURCE_LINE$1];
|
||
|
|
const sourceColumn = seg[SOURCE_COLUMN$1];
|
||
|
|
const originalSource = sources[sourceIndex];
|
||
|
|
const originalLine = (originalSource[sourceLine] || (originalSource[sourceLine] = []));
|
||
|
|
const memo = memos[sourceIndex];
|
||
|
|
// The binary search either found a match, or it found the left-index just before where the
|
||
|
|
// segment should go. Either way, we want to insert after that. And there may be multiple
|
||
|
|
// generated segments associated with an original location, so there may need to move several
|
||
|
|
// indexes before we find where we need to insert.
|
||
|
|
let index = upperBound(originalLine, sourceColumn, memoizedBinarySearch(originalLine, sourceColumn, memo, sourceLine));
|
||
|
|
memo.lastIndex = ++index;
|
||
|
|
insert$1(originalLine, index, [sourceColumn, i, seg[COLUMN$1]]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return sources;
|
||
|
|
}
|
||
|
|
function insert$1(array, index, value) {
|
||
|
|
for (let i = array.length; i > index; i--) {
|
||
|
|
array[i] = array[i - 1];
|
||
|
|
}
|
||
|
|
array[index] = value;
|
||
|
|
}
|
||
|
|
// Null arrays allow us to use ordered index keys without actually allocating contiguous memory like
|
||
|
|
// a real array. We use a null-prototype object to avoid prototype pollution and deoptimizations.
|
||
|
|
// Numeric properties on objects are magically sorted in ascending order by the engine regardless of
|
||
|
|
// the insertion order. So, by setting any numeric keys, even out of order, we'll get ascending
|
||
|
|
// order when iterating with for-in.
|
||
|
|
function buildNullArray() {
|
||
|
|
return { __proto__: null };
|
||
|
|
}
|
||
|
|
|
||
|
|
const AnyMap = function (map, mapUrl) {
|
||
|
|
const parsed = parse(map);
|
||
|
|
if (!('sections' in parsed)) {
|
||
|
|
return new TraceMap(parsed, mapUrl);
|
||
|
|
}
|
||
|
|
const mappings = [];
|
||
|
|
const sources = [];
|
||
|
|
const sourcesContent = [];
|
||
|
|
const names = [];
|
||
|
|
const ignoreList = [];
|
||
|
|
recurse(parsed, mapUrl, mappings, sources, sourcesContent, names, ignoreList, 0, 0, Infinity, Infinity);
|
||
|
|
const joined = {
|
||
|
|
version: 3,
|
||
|
|
file: parsed.file,
|
||
|
|
names,
|
||
|
|
sources,
|
||
|
|
sourcesContent,
|
||
|
|
mappings,
|
||
|
|
ignoreList,
|
||
|
|
};
|
||
|
|
return presortedDecodedMap(joined);
|
||
|
|
};
|
||
|
|
function parse(map) {
|
||
|
|
return typeof map === 'string' ? JSON.parse(map) : map;
|
||
|
|
}
|
||
|
|
function recurse(input, mapUrl, mappings, sources, sourcesContent, names, ignoreList, lineOffset, columnOffset, stopLine, stopColumn) {
|
||
|
|
const { sections } = input;
|
||
|
|
for (let i = 0; i < sections.length; i++) {
|
||
|
|
const { map, offset } = sections[i];
|
||
|
|
let sl = stopLine;
|
||
|
|
let sc = stopColumn;
|
||
|
|
if (i + 1 < sections.length) {
|
||
|
|
const nextOffset = sections[i + 1].offset;
|
||
|
|
sl = Math.min(stopLine, lineOffset + nextOffset.line);
|
||
|
|
if (sl === stopLine) {
|
||
|
|
sc = Math.min(stopColumn, columnOffset + nextOffset.column);
|
||
|
|
}
|
||
|
|
else if (sl < stopLine) {
|
||
|
|
sc = columnOffset + nextOffset.column;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
addSection(map, mapUrl, mappings, sources, sourcesContent, names, ignoreList, lineOffset + offset.line, columnOffset + offset.column, sl, sc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function addSection(input, mapUrl, mappings, sources, sourcesContent, names, ignoreList, lineOffset, columnOffset, stopLine, stopColumn) {
|
||
|
|
const parsed = parse(input);
|
||
|
|
if ('sections' in parsed)
|
||
|
|
return recurse(...arguments);
|
||
|
|
const map = new TraceMap(parsed, mapUrl);
|
||
|
|
const sourcesOffset = sources.length;
|
||
|
|
const namesOffset = names.length;
|
||
|
|
const decoded = decodedMappings(map);
|
||
|
|
const { resolvedSources, sourcesContent: contents, ignoreList: ignores } = map;
|
||
|
|
append(sources, resolvedSources);
|
||
|
|
append(names, map.names);
|
||
|
|
if (contents)
|
||
|
|
append(sourcesContent, contents);
|
||
|
|
else
|
||
|
|
for (let i = 0; i < resolvedSources.length; i++)
|
||
|
|
sourcesContent.push(null);
|
||
|
|
if (ignores)
|
||
|
|
for (let i = 0; i < ignores.length; i++)
|
||
|
|
ignoreList.push(ignores[i] + sourcesOffset);
|
||
|
|
for (let i = 0; i < decoded.length; i++) {
|
||
|
|
const lineI = lineOffset + i;
|
||
|
|
// We can only add so many lines before we step into the range that the next section's map
|
||
|
|
// controls. When we get to the last line, then we'll start checking the segments to see if
|
||
|
|
// they've crossed into the column range. But it may not have any columns that overstep, so we
|
||
|
|
// still need to check that we don't overstep lines, too.
|
||
|
|
if (lineI > stopLine)
|
||
|
|
return;
|
||
|
|
// The out line may already exist in mappings (if we're continuing the line started by a
|
||
|
|
// previous section). Or, we may have jumped ahead several lines to start this section.
|
||
|
|
const out = getLine$1(mappings, lineI);
|
||
|
|
// On the 0th loop, the section's column offset shifts us forward. On all other lines (since the
|
||
|
|
// map can be multiple lines), it doesn't.
|
||
|
|
const cOffset = i === 0 ? columnOffset : 0;
|
||
|
|
const line = decoded[i];
|
||
|
|
for (let j = 0; j < line.length; j++) {
|
||
|
|
const seg = line[j];
|
||
|
|
const column = cOffset + seg[COLUMN$1];
|
||
|
|
// If this segment steps into the column range that the next section's map controls, we need
|
||
|
|
// to stop early.
|
||
|
|
if (lineI === stopLine && column >= stopColumn)
|
||
|
|
return;
|
||
|
|
if (seg.length === 1) {
|
||
|
|
out.push([column]);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
const sourcesIndex = sourcesOffset + seg[SOURCES_INDEX$1];
|
||
|
|
const sourceLine = seg[SOURCE_LINE$1];
|
||
|
|
const sourceColumn = seg[SOURCE_COLUMN$1];
|
||
|
|
out.push(seg.length === 4
|
||
|
|
? [column, sourcesIndex, sourceLine, sourceColumn]
|
||
|
|
: [column, sourcesIndex, sourceLine, sourceColumn, namesOffset + seg[NAMES_INDEX$1]]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function append(arr, other) {
|
||
|
|
for (let i = 0; i < other.length; i++)
|
||
|
|
arr.push(other[i]);
|
||
|
|
}
|
||
|
|
function getLine$1(arr, index) {
|
||
|
|
for (let i = arr.length; i <= index; i++)
|
||
|
|
arr[i] = [];
|
||
|
|
return arr[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
const LINE_GTR_ZERO = '`line` must be greater than 0 (lines start at line 1)';
|
||
|
|
const COL_GTR_EQ_ZERO = '`column` must be greater than or equal to 0 (columns start at column 0)';
|
||
|
|
const LEAST_UPPER_BOUND = -1;
|
||
|
|
const GREATEST_LOWER_BOUND = 1;
|
||
|
|
class TraceMap {
|
||
|
|
constructor(map, mapUrl) {
|
||
|
|
const isString = typeof map === 'string';
|
||
|
|
if (!isString && map._decodedMemo)
|
||
|
|
return map;
|
||
|
|
const parsed = (isString ? JSON.parse(map) : map);
|
||
|
|
const { version, file, names, sourceRoot, sources, sourcesContent } = parsed;
|
||
|
|
this.version = version;
|
||
|
|
this.file = file;
|
||
|
|
this.names = names || [];
|
||
|
|
this.sourceRoot = sourceRoot;
|
||
|
|
this.sources = sources;
|
||
|
|
this.sourcesContent = sourcesContent;
|
||
|
|
this.ignoreList = parsed.ignoreList || parsed.x_google_ignoreList || undefined;
|
||
|
|
const from = resolve(sourceRoot || '', stripFilename(mapUrl));
|
||
|
|
this.resolvedSources = sources.map((s) => resolve(s || '', from));
|
||
|
|
const { mappings } = parsed;
|
||
|
|
if (typeof mappings === 'string') {
|
||
|
|
this._encoded = mappings;
|
||
|
|
this._decoded = undefined;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this._encoded = undefined;
|
||
|
|
this._decoded = maybeSort(mappings, isString);
|
||
|
|
}
|
||
|
|
this._decodedMemo = memoizedState();
|
||
|
|
this._bySources = undefined;
|
||
|
|
this._bySourceMemos = undefined;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Typescript doesn't allow friend access to private fields, so this just casts the map into a type
|
||
|
|
* with public access modifiers.
|
||
|
|
*/
|
||
|
|
function cast$2(map) {
|
||
|
|
return map;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
|
||
|
|
*/
|
||
|
|
function encodedMappings(map) {
|
||
|
|
var _a;
|
||
|
|
var _b;
|
||
|
|
return ((_a = (_b = cast$2(map))._encoded) !== null && _a !== void 0 ? _a : (_b._encoded = encode(cast$2(map)._decoded)));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Returns the decoded (array of lines of segments) form of the SourceMap's mappings field.
|
||
|
|
*/
|
||
|
|
function decodedMappings(map) {
|
||
|
|
var _a;
|
||
|
|
return ((_a = cast$2(map))._decoded || (_a._decoded = decode(cast$2(map)._encoded)));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* A higher-level API to find the source/line/column associated with a generated line/column
|
||
|
|
* (think, from a stack trace). Line is 1-based, but column is 0-based, due to legacy behavior in
|
||
|
|
* `source-map` library.
|
||
|
|
*/
|
||
|
|
function originalPositionFor(map, needle) {
|
||
|
|
let { line, column, bias } = needle;
|
||
|
|
line--;
|
||
|
|
if (line < 0)
|
||
|
|
throw new Error(LINE_GTR_ZERO);
|
||
|
|
if (column < 0)
|
||
|
|
throw new Error(COL_GTR_EQ_ZERO);
|
||
|
|
const decoded = decodedMappings(map);
|
||
|
|
// It's common for parent source maps to have pointers to lines that have no
|
||
|
|
// mapping (like a "//# sourceMappingURL=") at the end of the child file.
|
||
|
|
if (line >= decoded.length)
|
||
|
|
return OMapping(null, null, null, null);
|
||
|
|
const segments = decoded[line];
|
||
|
|
const index = traceSegmentInternal(segments, cast$2(map)._decodedMemo, line, column, bias || GREATEST_LOWER_BOUND);
|
||
|
|
if (index === -1)
|
||
|
|
return OMapping(null, null, null, null);
|
||
|
|
const segment = segments[index];
|
||
|
|
if (segment.length === 1)
|
||
|
|
return OMapping(null, null, null, null);
|
||
|
|
const { names, resolvedSources } = map;
|
||
|
|
return OMapping(resolvedSources[segment[SOURCES_INDEX$1]], segment[SOURCE_LINE$1] + 1, segment[SOURCE_COLUMN$1], segment.length === 5 ? names[segment[NAMES_INDEX$1]] : null);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Finds the generated line/column position of the provided source/line/column source position.
|
||
|
|
*/
|
||
|
|
function generatedPositionFor(map, needle) {
|
||
|
|
const { source, line, column, bias } = needle;
|
||
|
|
return generatedPosition(map, source, line, column, bias || GREATEST_LOWER_BOUND, false);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Finds all generated line/column positions of the provided source/line/column source position.
|
||
|
|
*/
|
||
|
|
function allGeneratedPositionsFor(map, needle) {
|
||
|
|
const { source, line, column, bias } = needle;
|
||
|
|
// SourceMapConsumer uses LEAST_UPPER_BOUND for some reason, so we follow suit.
|
||
|
|
return generatedPosition(map, source, line, column, bias || LEAST_UPPER_BOUND, true);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Iterates each mapping in generated position order.
|
||
|
|
*/
|
||
|
|
function eachMapping(map, cb) {
|
||
|
|
const decoded = decodedMappings(map);
|
||
|
|
const { names, resolvedSources } = map;
|
||
|
|
for (let i = 0; i < decoded.length; i++) {
|
||
|
|
const line = decoded[i];
|
||
|
|
for (let j = 0; j < line.length; j++) {
|
||
|
|
const seg = line[j];
|
||
|
|
const generatedLine = i + 1;
|
||
|
|
const generatedColumn = seg[0];
|
||
|
|
let source = null;
|
||
|
|
let originalLine = null;
|
||
|
|
let originalColumn = null;
|
||
|
|
let name = null;
|
||
|
|
if (seg.length !== 1) {
|
||
|
|
source = resolvedSources[seg[1]];
|
||
|
|
originalLine = seg[2] + 1;
|
||
|
|
originalColumn = seg[3];
|
||
|
|
}
|
||
|
|
if (seg.length === 5)
|
||
|
|
name = names[seg[4]];
|
||
|
|
cb({
|
||
|
|
generatedLine,
|
||
|
|
generatedColumn,
|
||
|
|
source,
|
||
|
|
originalLine,
|
||
|
|
originalColumn,
|
||
|
|
name,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function sourceIndex(map, source) {
|
||
|
|
const { sources, resolvedSources } = map;
|
||
|
|
let index = sources.indexOf(source);
|
||
|
|
if (index === -1)
|
||
|
|
index = resolvedSources.indexOf(source);
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Retrieves the source content for a particular source, if its found. Returns null if not.
|
||
|
|
*/
|
||
|
|
function sourceContentFor(map, source) {
|
||
|
|
const { sourcesContent } = map;
|
||
|
|
if (sourcesContent == null)
|
||
|
|
return null;
|
||
|
|
const index = sourceIndex(map, source);
|
||
|
|
return index === -1 ? null : sourcesContent[index];
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* A helper that skips sorting of the input map's mappings array, which can be expensive for larger
|
||
|
|
* maps.
|
||
|
|
*/
|
||
|
|
function presortedDecodedMap(map, mapUrl) {
|
||
|
|
const tracer = new TraceMap(clone(map, []), mapUrl);
|
||
|
|
cast$2(tracer)._decoded = map.mappings;
|
||
|
|
return tracer;
|
||
|
|
}
|
||
|
|
function clone(map, mappings) {
|
||
|
|
return {
|
||
|
|
version: map.version,
|
||
|
|
file: map.file,
|
||
|
|
names: map.names,
|
||
|
|
sourceRoot: map.sourceRoot,
|
||
|
|
sources: map.sources,
|
||
|
|
sourcesContent: map.sourcesContent,
|
||
|
|
mappings,
|
||
|
|
ignoreList: map.ignoreList || map.x_google_ignoreList,
|
||
|
|
};
|
||
|
|
}
|
||
|
|
function OMapping(source, line, column, name) {
|
||
|
|
return { source, line, column, name };
|
||
|
|
}
|
||
|
|
function GMapping(line, column) {
|
||
|
|
return { line, column };
|
||
|
|
}
|
||
|
|
function traceSegmentInternal(segments, memo, line, column, bias) {
|
||
|
|
let index = memoizedBinarySearch(segments, column, memo, line);
|
||
|
|
if (found) {
|
||
|
|
index = (bias === LEAST_UPPER_BOUND ? upperBound : lowerBound)(segments, column, index);
|
||
|
|
}
|
||
|
|
else if (bias === LEAST_UPPER_BOUND)
|
||
|
|
index++;
|
||
|
|
if (index === -1 || index === segments.length)
|
||
|
|
return -1;
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
function sliceGeneratedPositions(segments, memo, line, column, bias) {
|
||
|
|
let min = traceSegmentInternal(segments, memo, line, column, GREATEST_LOWER_BOUND);
|
||
|
|
// We ignored the bias when tracing the segment so that we're guarnateed to find the first (in
|
||
|
|
// insertion order) segment that matched. Even if we did respect the bias when tracing, we would
|
||
|
|
// still need to call `lowerBound()` to find the first segment, which is slower than just looking
|
||
|
|
// for the GREATEST_LOWER_BOUND to begin with. The only difference that matters for us is when the
|
||
|
|
// binary search didn't match, in which case GREATEST_LOWER_BOUND just needs to increment to
|
||
|
|
// match LEAST_UPPER_BOUND.
|
||
|
|
if (!found && bias === LEAST_UPPER_BOUND)
|
||
|
|
min++;
|
||
|
|
if (min === -1 || min === segments.length)
|
||
|
|
return [];
|
||
|
|
// We may have found the segment that started at an earlier column. If this is the case, then we
|
||
|
|
// need to slice all generated segments that match _that_ column, because all such segments span
|
||
|
|
// to our desired column.
|
||
|
|
const matchedColumn = found ? column : segments[min][COLUMN$1];
|
||
|
|
// The binary search is not guaranteed to find the lower bound when a match wasn't found.
|
||
|
|
if (!found)
|
||
|
|
min = lowerBound(segments, matchedColumn, min);
|
||
|
|
const max = upperBound(segments, matchedColumn, min);
|
||
|
|
const result = [];
|
||
|
|
for (; min <= max; min++) {
|
||
|
|
const segment = segments[min];
|
||
|
|
result.push(GMapping(segment[REV_GENERATED_LINE] + 1, segment[REV_GENERATED_COLUMN]));
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
function generatedPosition(map, source, line, column, bias, all) {
|
||
|
|
var _a;
|
||
|
|
line--;
|
||
|
|
if (line < 0)
|
||
|
|
throw new Error(LINE_GTR_ZERO);
|
||
|
|
if (column < 0)
|
||
|
|
throw new Error(COL_GTR_EQ_ZERO);
|
||
|
|
const { sources, resolvedSources } = map;
|
||
|
|
let sourceIndex = sources.indexOf(source);
|
||
|
|
if (sourceIndex === -1)
|
||
|
|
sourceIndex = resolvedSources.indexOf(source);
|
||
|
|
if (sourceIndex === -1)
|
||
|
|
return all ? [] : GMapping(null, null);
|
||
|
|
const generated = ((_a = cast$2(map))._bySources || (_a._bySources = buildBySources(decodedMappings(map), (cast$2(map)._bySourceMemos = sources.map(memoizedState)))));
|
||
|
|
const segments = generated[sourceIndex][line];
|
||
|
|
if (segments == null)
|
||
|
|
return all ? [] : GMapping(null, null);
|
||
|
|
const memo = cast$2(map)._bySourceMemos[sourceIndex];
|
||
|
|
if (all)
|
||
|
|
return sliceGeneratedPositions(segments, memo, line, column, bias);
|
||
|
|
const index = traceSegmentInternal(segments, memo, line, column, bias);
|
||
|
|
if (index === -1)
|
||
|
|
return GMapping(null, null);
|
||
|
|
const segment = segments[index];
|
||
|
|
return GMapping(segment[REV_GENERATED_LINE] + 1, segment[REV_GENERATED_COLUMN]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
|
||
|
|
* index of the `key` in the backing array.
|
||
|
|
*
|
||
|
|
* This is designed to allow synchronizing a second array with the contents of the backing array,
|
||
|
|
* like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
|
||
|
|
* and there are never duplicates.
|
||
|
|
*/
|
||
|
|
class SetArray {
|
||
|
|
constructor() {
|
||
|
|
this._indexes = { __proto__: null };
|
||
|
|
this.array = [];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Typescript doesn't allow friend access to private fields, so this just casts the set into a type
|
||
|
|
* with public access modifiers.
|
||
|
|
*/
|
||
|
|
function cast$1(set) {
|
||
|
|
return set;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Gets the index associated with `key` in the backing array, if it is already present.
|
||
|
|
*/
|
||
|
|
function get(setarr, key) {
|
||
|
|
return cast$1(setarr)._indexes[key];
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Puts `key` into the backing array, if it is not already present. Returns
|
||
|
|
* the index of the `key` in the backing array.
|
||
|
|
*/
|
||
|
|
function put(setarr, key) {
|
||
|
|
// The key may or may not be present. If it is present, it's a number.
|
||
|
|
const index = get(setarr, key);
|
||
|
|
if (index !== undefined)
|
||
|
|
return index;
|
||
|
|
const { array, _indexes: indexes } = cast$1(setarr);
|
||
|
|
const length = array.push(key);
|
||
|
|
return (indexes[key] = length - 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
const COLUMN = 0;
|
||
|
|
const SOURCES_INDEX = 1;
|
||
|
|
const SOURCE_LINE = 2;
|
||
|
|
const SOURCE_COLUMN = 3;
|
||
|
|
const NAMES_INDEX = 4;
|
||
|
|
|
||
|
|
const NO_NAME = -1;
|
||
|
|
/**
|
||
|
|
* Provides the state to generate a sourcemap.
|
||
|
|
*/
|
||
|
|
class GenMapping {
|
||
|
|
constructor({ file, sourceRoot } = {}) {
|
||
|
|
this._names = new SetArray();
|
||
|
|
this._sources = new SetArray();
|
||
|
|
this._sourcesContent = [];
|
||
|
|
this._mappings = [];
|
||
|
|
this.file = file;
|
||
|
|
this.sourceRoot = sourceRoot;
|
||
|
|
this._ignoreList = new SetArray();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Typescript doesn't allow friend access to private fields, so this just casts the map into a type
|
||
|
|
* with public access modifiers.
|
||
|
|
*/
|
||
|
|
function cast(map) {
|
||
|
|
return map;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Same as `addMapping`, but will only add the mapping if it generates useful information in the
|
||
|
|
* resulting map. This only works correctly if mappings are added **in order**, meaning you should
|
||
|
|
* not add a mapping with a lower generated line/column than one that came before.
|
||
|
|
*/
|
||
|
|
const maybeAddMapping = (map, mapping) => {
|
||
|
|
return addMappingInternal(true, map, mapping);
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Adds/removes the content of the source file to the source map.
|
||
|
|
*/
|
||
|
|
function setSourceContent(map, source, content) {
|
||
|
|
const { _sources: sources, _sourcesContent: sourcesContent } = cast(map);
|
||
|
|
const index = put(sources, source);
|
||
|
|
sourcesContent[index] = content;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
|
||
|
|
* a sourcemap, or to JSON.stringify.
|
||
|
|
*/
|
||
|
|
function toDecodedMap(map) {
|
||
|
|
const { _mappings: mappings, _sources: sources, _sourcesContent: sourcesContent, _names: names, _ignoreList: ignoreList, } = cast(map);
|
||
|
|
removeEmptyFinalLines(mappings);
|
||
|
|
return {
|
||
|
|
version: 3,
|
||
|
|
file: map.file || undefined,
|
||
|
|
names: names.array,
|
||
|
|
sourceRoot: map.sourceRoot || undefined,
|
||
|
|
sources: sources.array,
|
||
|
|
sourcesContent,
|
||
|
|
mappings,
|
||
|
|
ignoreList: ignoreList.array,
|
||
|
|
};
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
|
||
|
|
* a sourcemap, or to JSON.stringify.
|
||
|
|
*/
|
||
|
|
function toEncodedMap(map) {
|
||
|
|
const decoded = toDecodedMap(map);
|
||
|
|
return Object.assign(Object.assign({}, decoded), { mappings: encode(decoded.mappings) });
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Constructs a new GenMapping, using the already present mappings of the input.
|
||
|
|
*/
|
||
|
|
function fromMap(input) {
|
||
|
|
const map = new TraceMap(input);
|
||
|
|
const gen = new GenMapping({ file: map.file, sourceRoot: map.sourceRoot });
|
||
|
|
putAll(cast(gen)._names, map.names);
|
||
|
|
putAll(cast(gen)._sources, map.sources);
|
||
|
|
cast(gen)._sourcesContent = map.sourcesContent || map.sources.map(() => null);
|
||
|
|
cast(gen)._mappings = decodedMappings(map);
|
||
|
|
if (map.ignoreList)
|
||
|
|
putAll(cast(gen)._ignoreList, map.ignoreList);
|
||
|
|
return gen;
|
||
|
|
}
|
||
|
|
// This split declaration is only so that terser can elminiate the static initialization block.
|
||
|
|
function addSegmentInternal(skipable, map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) {
|
||
|
|
const { _mappings: mappings, _sources: sources, _sourcesContent: sourcesContent, _names: names, } = cast(map);
|
||
|
|
const line = getLine(mappings, genLine);
|
||
|
|
const index = getColumnIndex(line, genColumn);
|
||
|
|
if (!source) {
|
||
|
|
if (skipable && skipSourceless(line, index))
|
||
|
|
return;
|
||
|
|
return insert(line, index, [genColumn]);
|
||
|
|
}
|
||
|
|
const sourcesIndex = put(sources, source);
|
||
|
|
const namesIndex = name ? put(names, name) : NO_NAME;
|
||
|
|
if (sourcesIndex === sourcesContent.length)
|
||
|
|
sourcesContent[sourcesIndex] = content !== null && content !== void 0 ? content : null;
|
||
|
|
if (skipable && skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
return insert(line, index, name
|
||
|
|
? [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex]
|
||
|
|
: [genColumn, sourcesIndex, sourceLine, sourceColumn]);
|
||
|
|
}
|
||
|
|
function getLine(mappings, index) {
|
||
|
|
for (let i = mappings.length; i <= index; i++) {
|
||
|
|
mappings[i] = [];
|
||
|
|
}
|
||
|
|
return mappings[index];
|
||
|
|
}
|
||
|
|
function getColumnIndex(line, genColumn) {
|
||
|
|
let index = line.length;
|
||
|
|
for (let i = index - 1; i >= 0; index = i--) {
|
||
|
|
const current = line[i];
|
||
|
|
if (genColumn >= current[COLUMN])
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
function insert(array, index, value) {
|
||
|
|
for (let i = array.length; i > index; i--) {
|
||
|
|
array[i] = array[i - 1];
|
||
|
|
}
|
||
|
|
array[index] = value;
|
||
|
|
}
|
||
|
|
function removeEmptyFinalLines(mappings) {
|
||
|
|
const { length } = mappings;
|
||
|
|
let len = length;
|
||
|
|
for (let i = len - 1; i >= 0; len = i, i--) {
|
||
|
|
if (mappings[i].length > 0)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (len < length)
|
||
|
|
mappings.length = len;
|
||
|
|
}
|
||
|
|
function putAll(setarr, array) {
|
||
|
|
for (let i = 0; i < array.length; i++)
|
||
|
|
put(setarr, array[i]);
|
||
|
|
}
|
||
|
|
function skipSourceless(line, index) {
|
||
|
|
// The start of a line is already sourceless, so adding a sourceless segment to the beginning
|
||
|
|
// doesn't generate any useful information.
|
||
|
|
if (index === 0)
|
||
|
|
return true;
|
||
|
|
const prev = line[index - 1];
|
||
|
|
// If the previous segment is also sourceless, then adding another sourceless segment doesn't
|
||
|
|
// genrate any new information. Else, this segment will end the source/named segment and point to
|
||
|
|
// a sourceless position, which is useful.
|
||
|
|
return prev.length === 1;
|
||
|
|
}
|
||
|
|
function skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex) {
|
||
|
|
// A source/named segment at the start of a line gives position at that genColumn
|
||
|
|
if (index === 0)
|
||
|
|
return false;
|
||
|
|
const prev = line[index - 1];
|
||
|
|
// If the previous segment is sourceless, then we're transitioning to a source.
|
||
|
|
if (prev.length === 1)
|
||
|
|
return false;
|
||
|
|
// If the previous segment maps to the exact same source position, then this segment doesn't
|
||
|
|
// provide any new position information.
|
||
|
|
return (sourcesIndex === prev[SOURCES_INDEX] &&
|
||
|
|
sourceLine === prev[SOURCE_LINE] &&
|
||
|
|
sourceColumn === prev[SOURCE_COLUMN] &&
|
||
|
|
namesIndex === (prev.length === 5 ? prev[NAMES_INDEX] : NO_NAME));
|
||
|
|
}
|
||
|
|
function addMappingInternal(skipable, map, mapping) {
|
||
|
|
const { generated, source, original, name, content } = mapping;
|
||
|
|
if (!source) {
|
||
|
|
return addSegmentInternal(skipable, map, generated.line - 1, generated.column, null, null, null, null, null);
|
||
|
|
}
|
||
|
|
return addSegmentInternal(skipable, map, generated.line - 1, generated.column, source, original.line - 1, original.column, name, content);
|
||
|
|
}
|
||
|
|
|
||
|
|
class SourceMapConsumer {
|
||
|
|
constructor(map, mapUrl) {
|
||
|
|
const trace = (this._map = new AnyMap(map, mapUrl));
|
||
|
|
this.file = trace.file;
|
||
|
|
this.names = trace.names;
|
||
|
|
this.sourceRoot = trace.sourceRoot;
|
||
|
|
this.sources = trace.resolvedSources;
|
||
|
|
this.sourcesContent = trace.sourcesContent;
|
||
|
|
this.version = trace.version;
|
||
|
|
}
|
||
|
|
static fromSourceMap(map, mapUrl) {
|
||
|
|
// This is more performant if we receive
|
||
|
|
// a @jridgewell/source-map SourceMapGenerator
|
||
|
|
if (map.toDecodedMap) {
|
||
|
|
return new SourceMapConsumer(map.toDecodedMap(), mapUrl);
|
||
|
|
}
|
||
|
|
// This is a fallback for `source-map` and `source-map-js`
|
||
|
|
return new SourceMapConsumer(map.toJSON(), mapUrl);
|
||
|
|
}
|
||
|
|
get mappings() {
|
||
|
|
return encodedMappings(this._map);
|
||
|
|
}
|
||
|
|
originalPositionFor(needle) {
|
||
|
|
return originalPositionFor(this._map, needle);
|
||
|
|
}
|
||
|
|
generatedPositionFor(originalPosition) {
|
||
|
|
return generatedPositionFor(this._map, originalPosition);
|
||
|
|
}
|
||
|
|
allGeneratedPositionsFor(originalPosition) {
|
||
|
|
return allGeneratedPositionsFor(this._map, originalPosition);
|
||
|
|
}
|
||
|
|
hasContentsOfAllSources() {
|
||
|
|
if (!this.sourcesContent || this.sourcesContent.length !== this.sources.length) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
for (const content of this.sourcesContent) {
|
||
|
|
if (content == null) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
sourceContentFor(source, nullOnMissing) {
|
||
|
|
const sourceContent = sourceContentFor(this._map, source);
|
||
|
|
if (sourceContent != null) {
|
||
|
|
return sourceContent;
|
||
|
|
}
|
||
|
|
if (nullOnMissing) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
throw new Error(`"${source}" is not in the SourceMap.`);
|
||
|
|
}
|
||
|
|
eachMapping(callback, context /*, order?: number*/) {
|
||
|
|
// order is ignored as @jridgewell/trace-map doesn't implement it
|
||
|
|
eachMapping(this._map, context ? callback.bind(context) : callback);
|
||
|
|
}
|
||
|
|
destroy() {
|
||
|
|
// noop.
|
||
|
|
}
|
||
|
|
}
|
||
|
|
class SourceMapGenerator {
|
||
|
|
constructor(opts) {
|
||
|
|
// TODO :: should this be duck-typed ?
|
||
|
|
this._map = opts instanceof GenMapping ? opts : new GenMapping(opts);
|
||
|
|
}
|
||
|
|
static fromSourceMap(consumer) {
|
||
|
|
return new SourceMapGenerator(fromMap(consumer));
|
||
|
|
}
|
||
|
|
addMapping(mapping) {
|
||
|
|
maybeAddMapping(this._map, mapping);
|
||
|
|
}
|
||
|
|
setSourceContent(source, content) {
|
||
|
|
setSourceContent(this._map, source, content);
|
||
|
|
}
|
||
|
|
toJSON() {
|
||
|
|
return toEncodedMap(this._map);
|
||
|
|
}
|
||
|
|
toString() {
|
||
|
|
return JSON.stringify(this.toJSON());
|
||
|
|
}
|
||
|
|
toDecodedMap() {
|
||
|
|
return toDecodedMap(this._map);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
exports.SourceMapConsumer = SourceMapConsumer;
|
||
|
|
exports.SourceMapGenerator = SourceMapGenerator;
|
||
|
|
|
||
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
||
|
|
|
||
|
|
}));
|
||
|
|
//# sourceMappingURL=source-map.umd.js.map
|