challenge-algorithms-v2.0-u.../node_modules/@jridgewell/gen-mapping/dist/gen-mapping.umd.js

175 lines
6.8 KiB
JavaScript

(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@jridgewell/set-array'), require('@jridgewell/sourcemap-codec')) :
typeof define === 'function' && define.amd ? define(['exports', '@jridgewell/set-array', '@jridgewell/sourcemap-codec'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.genMapping = {}, global.setArray, global.sourcemapCodec));
})(this, (function (exports, setArray, sourcemapCodec) { 'use strict';
/**
* A low-level API to associate a generated position with an original source position. Line and
* column here are 0-based, unlike `addMapping`.
*/
exports.addSegment = void 0;
/**
* A high-level API to associate a generated position with an original source position. Line is
* 1-based, but column is 0-based, due to legacy behavior in `source-map` library.
*/
exports.addMapping = void 0;
/**
* Adds/removes the content of the source file to the source map.
*/
exports.setSourceContent = void 0;
/**
* Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
* a sourcemap, or to JSON.stringify.
*/
exports.decodedMap = void 0;
/**
* Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
* a sourcemap, or to JSON.stringify.
*/
exports.encodedMap = void 0;
/**
* Returns an array of high-level mapping objects for every recorded segment, which could then be
* passed to the `source-map` library.
*/
exports.allMappings = void 0;
/**
* Provides the state to generate a sourcemap.
*/
class GenMapping {
constructor({ file, sourceRoot } = {}) {
this._names = new setArray.SetArray();
this._sources = new setArray.SetArray();
this._sourcesContent = [];
this._mappings = [];
this.file = file;
this.sourceRoot = sourceRoot;
}
}
(() => {
exports.addSegment = (map, genLine, genColumn, source, sourceLine, sourceColumn, name) => {
const { _mappings: mappings, _sources: sources, _sourcesContent: sourcesContent, _names: names, } = map;
const line = getLine(mappings, genLine);
if (source == null) {
const seg = [genColumn];
const index = getColumnIndex(line, genColumn, seg);
return insert(line, index, seg);
}
const sourcesIndex = setArray.put(sources, source);
const seg = name
? [genColumn, sourcesIndex, sourceLine, sourceColumn, setArray.put(names, name)]
: [genColumn, sourcesIndex, sourceLine, sourceColumn];
const index = getColumnIndex(line, genColumn, seg);
if (sourcesIndex === sourcesContent.length)
sourcesContent[sourcesIndex] = null;
insert(line, index, seg);
};
exports.addMapping = (map, mapping) => {
const { generated, source, original, name } = mapping;
return exports.addSegment(map, generated.line - 1, generated.column, source, original == null ? undefined : original.line - 1, original === null || original === void 0 ? void 0 : original.column, name);
};
exports.setSourceContent = (map, source, content) => {
const { _sources: sources, _sourcesContent: sourcesContent } = map;
sourcesContent[setArray.put(sources, source)] = content;
};
exports.decodedMap = (map) => {
const { file, sourceRoot, _mappings: mappings, _sources: sources, _sourcesContent: sourcesContent, _names: names, } = map;
return {
version: 3,
file,
names: names.array,
sourceRoot: sourceRoot || undefined,
sources: sources.array,
sourcesContent,
mappings,
};
};
exports.encodedMap = (map) => {
const decoded = exports.decodedMap(map);
return Object.assign(Object.assign({}, decoded), { mappings: sourcemapCodec.encode(decoded.mappings) });
};
exports.allMappings = (map) => {
const out = [];
const { _mappings: mappings, _sources: sources, _names: names } = map;
for (let i = 0; i < mappings.length; i++) {
const line = mappings[i];
for (let j = 0; j < line.length; j++) {
const seg = line[j];
const generated = { line: i + 1, column: seg[0] };
let source = undefined;
let original = undefined;
let name = undefined;
if (seg.length !== 1) {
source = sources.array[seg[1]];
original = { line: seg[2] + 1, column: seg[3] };
if (seg.length === 5)
name = names.array[seg[4]];
}
out.push({ generated, source, original, name });
}
}
return out;
};
})();
function getLine(mappings, index) {
for (let i = mappings.length; i <= index; i++) {
mappings[i] = [];
}
return mappings[index];
}
function getColumnIndex(line, column, seg) {
let index = line.length;
for (let i = index - 1; i >= 0; i--, index--) {
const current = line[i];
const col = current[0];
if (col > column)
continue;
if (col < column)
break;
const cmp = compare(current, seg);
if (cmp === 0)
return index;
if (cmp < 0)
break;
}
return index;
}
function compare(a, b) {
let cmp = compareNum(a.length, b.length);
if (cmp !== 0)
return cmp;
// We've already checked genColumn
if (a.length === 1)
return 0;
cmp = compareNum(a[1], b[1]);
if (cmp !== 0)
return cmp;
cmp = compareNum(a[2], b[2]);
if (cmp !== 0)
return cmp;
cmp = compareNum(a[3], b[3]);
if (cmp !== 0)
return cmp;
if (a.length === 4)
return 0;
return compareNum(a[4], b[4]);
}
function compareNum(a, b) {
return a - b;
}
function insert(array, index, value) {
if (index === -1)
return;
for (let i = array.length; i > index; i--) {
array[i] = array[i - 1];
}
array[index] = value;
}
exports.GenMapping = GenMapping;
Object.defineProperty(exports, '__esModule', { value: true });
}));
//# sourceMappingURL=gen-mapping.umd.js.map