| |
| import { encode, decode } from "@jridgewell/sourcemap-codec"; |
|
|
| |
| import resolveUri from "@jridgewell/resolve-uri"; |
|
|
| |
| function stripFilename(path) { |
| if (!path) return ""; |
| const index = path.lastIndexOf("/"); |
| return path.slice(0, index + 1); |
| } |
|
|
| |
| function resolver(mapUrl, sourceRoot) { |
| const from = stripFilename(mapUrl); |
| const prefix = sourceRoot ? sourceRoot + "/" : ""; |
| return (source) => resolveUri(prefix + (source || ""), from); |
| } |
|
|
| |
| var COLUMN = 0; |
| var SOURCES_INDEX = 1; |
| var SOURCE_LINE = 2; |
| var SOURCE_COLUMN = 3; |
| var NAMES_INDEX = 4; |
| var REV_GENERATED_LINE = 1; |
| var REV_GENERATED_COLUMN = 2; |
|
|
| |
| function maybeSort(mappings, owned) { |
| const unsortedIndex = nextUnsortedSegmentLine(mappings, 0); |
| if (unsortedIndex === mappings.length) return mappings; |
| 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] < line[j - 1][COLUMN]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| function sortSegments(line, owned) { |
| if (!owned) line = line.slice(); |
| return line.sort(sortComparator); |
| } |
| function sortComparator(a, b) { |
| return a[COLUMN] - b[COLUMN]; |
| } |
|
|
| |
| function buildBySources(decoded, memos) { |
| const sources = memos.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]; |
| if (seg.length === 1) continue; |
| const sourceIndex2 = seg[SOURCES_INDEX]; |
| const sourceLine = seg[SOURCE_LINE]; |
| const sourceColumn = seg[SOURCE_COLUMN]; |
| const source = sources[sourceIndex2]; |
| const segs = source[sourceLine] || (source[sourceLine] = []); |
| segs.push([sourceColumn, i, seg[COLUMN]]); |
| } |
| } |
| for (let i = 0; i < sources.length; i++) { |
| const source = sources[i]; |
| for (let j = 0; j < source.length; j++) { |
| const line = source[j]; |
| if (line) line.sort(sortComparator); |
| } |
| } |
| return sources; |
| } |
|
|
| |
| var found = false; |
| function binarySearch(haystack, needle, low, high) { |
| while (low <= high) { |
| const mid = low + (high - low >> 1); |
| const cmp = haystack[mid][COLUMN] - 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] !== needle) break; |
| } |
| return index; |
| } |
| function lowerBound(haystack, needle, index) { |
| for (let i = index - 1; i >= 0; index = i--) { |
| if (haystack[i][COLUMN] !== needle) break; |
| } |
| return index; |
| } |
| function memoizedState() { |
| return { |
| lastKey: -1, |
| lastNeedle: -1, |
| lastIndex: -1 |
| }; |
| } |
| 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] === needle; |
| return lastIndex; |
| } |
| if (needle >= lastNeedle) { |
| low = lastIndex === -1 ? 0 : lastIndex; |
| } else { |
| high = lastIndex; |
| } |
| } |
| state.lastKey = key; |
| state.lastNeedle = needle; |
| return state.lastIndex = binarySearch(haystack, needle, low, high); |
| } |
|
|
| |
| function parse(map) { |
| return typeof map === "string" ? JSON.parse(map) : map; |
| } |
|
|
| |
| var FlattenMap = 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 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; |
| if (lineI > stopLine) return; |
| const out = getLine(mappings, lineI); |
| 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]; |
| if (lineI === stopLine && column >= stopColumn) return; |
| if (seg.length === 1) { |
| out.push([column]); |
| continue; |
| } |
| const sourcesIndex = sourcesOffset + seg[SOURCES_INDEX]; |
| const sourceLine = seg[SOURCE_LINE]; |
| const sourceColumn = seg[SOURCE_COLUMN]; |
| out.push( |
| seg.length === 4 ? [column, sourcesIndex, sourceLine, sourceColumn] : [column, sourcesIndex, sourceLine, sourceColumn, namesOffset + seg[NAMES_INDEX]] |
| ); |
| } |
| } |
| } |
| function append(arr, other) { |
| for (let i = 0; i < other.length; i++) arr.push(other[i]); |
| } |
| function getLine(arr, index) { |
| for (let i = arr.length; i <= index; i++) arr[i] = []; |
| return arr[index]; |
| } |
|
|
| |
| var LINE_GTR_ZERO = "`line` must be greater than 0 (lines start at line 1)"; |
| var COL_GTR_EQ_ZERO = "`column` must be greater than or equal to 0 (columns start at column 0)"; |
| var LEAST_UPPER_BOUND = -1; |
| var GREATEST_LOWER_BOUND = 1; |
| var TraceMap = class { |
| constructor(map, mapUrl) { |
| const isString = typeof map === "string"; |
| if (!isString && map._decodedMemo) return map; |
| const parsed = parse(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 || void 0; |
| const resolve = resolver(mapUrl, sourceRoot); |
| this.resolvedSources = sources.map(resolve); |
| const { mappings } = parsed; |
| if (typeof mappings === "string") { |
| this._encoded = mappings; |
| this._decoded = void 0; |
| } else if (Array.isArray(mappings)) { |
| this._encoded = void 0; |
| this._decoded = maybeSort(mappings, isString); |
| } else if (parsed.sections) { |
| throw new Error(`TraceMap passed sectioned source map, please use FlattenMap export instead`); |
| } else { |
| throw new Error(`invalid source map: ${JSON.stringify(parsed)}`); |
| } |
| this._decodedMemo = memoizedState(); |
| this._bySources = void 0; |
| this._bySourceMemos = void 0; |
| } |
| }; |
| function cast(map) { |
| return map; |
| } |
| function encodedMappings(map) { |
| var _a, _b; |
| return (_b = (_a = cast(map))._encoded) != null ? _b : _a._encoded = encode(cast(map)._decoded); |
| } |
| function decodedMappings(map) { |
| var _a; |
| return (_a = cast(map))._decoded || (_a._decoded = decode(cast(map)._encoded)); |
| } |
| function traceSegment(map, line, column) { |
| const decoded = decodedMappings(map); |
| if (line >= decoded.length) return null; |
| const segments = decoded[line]; |
| const index = traceSegmentInternal( |
| segments, |
| cast(map)._decodedMemo, |
| line, |
| column, |
| GREATEST_LOWER_BOUND |
| ); |
| return index === -1 ? null : segments[index]; |
| } |
| 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); |
| if (line >= decoded.length) return OMapping(null, null, null, null); |
| const segments = decoded[line]; |
| const index = traceSegmentInternal( |
| segments, |
| cast(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]], |
| segment[SOURCE_LINE] + 1, |
| segment[SOURCE_COLUMN], |
| segment.length === 5 ? names[segment[NAMES_INDEX]] : null |
| ); |
| } |
| function generatedPositionFor(map, needle) { |
| const { source, line, column, bias } = needle; |
| return generatedPosition(map, source, line, column, bias || GREATEST_LOWER_BOUND, false); |
| } |
| function allGeneratedPositionsFor(map, needle) { |
| const { source, line, column, bias } = needle; |
| return generatedPosition(map, source, line, column, bias || LEAST_UPPER_BOUND, true); |
| } |
| 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; |
| } |
| function sourceContentFor(map, source) { |
| const { sourcesContent } = map; |
| if (sourcesContent == null) return null; |
| const index = sourceIndex(map, source); |
| return index === -1 ? null : sourcesContent[index]; |
| } |
| function isIgnored(map, source) { |
| const { ignoreList } = map; |
| if (ignoreList == null) return false; |
| const index = sourceIndex(map, source); |
| return index === -1 ? false : ignoreList.includes(index); |
| } |
| function presortedDecodedMap(map, mapUrl) { |
| const tracer = new TraceMap(clone(map, []), mapUrl); |
| cast(tracer)._decoded = map.mappings; |
| return tracer; |
| } |
| function decodedMap(map) { |
| return clone(map, decodedMappings(map)); |
| } |
| function encodedMap(map) { |
| return clone(map, encodedMappings(map)); |
| } |
| 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); |
| if (!found && bias === LEAST_UPPER_BOUND) min++; |
| if (min === -1 || min === segments.length) return []; |
| const matchedColumn = found ? column : segments[min][COLUMN]; |
| 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, _b; |
| 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 sourceIndex2 = sources.indexOf(source); |
| if (sourceIndex2 === -1) sourceIndex2 = resolvedSources.indexOf(source); |
| if (sourceIndex2 === -1) return all ? [] : GMapping(null, null); |
| const bySourceMemos = (_a = cast(map))._bySourceMemos || (_a._bySourceMemos = sources.map(memoizedState)); |
| const generated = (_b = cast(map))._bySources || (_b._bySources = buildBySources(decodedMappings(map), bySourceMemos)); |
| const segments = generated[sourceIndex2][line]; |
| if (segments == null) return all ? [] : GMapping(null, null); |
| const memo = bySourceMemos[sourceIndex2]; |
| 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]); |
| } |
| export { |
| FlattenMap as AnyMap, |
| FlattenMap, |
| GREATEST_LOWER_BOUND, |
| LEAST_UPPER_BOUND, |
| TraceMap, |
| allGeneratedPositionsFor, |
| decodedMap, |
| decodedMappings, |
| eachMapping, |
| encodedMap, |
| encodedMappings, |
| generatedPositionFor, |
| isIgnored, |
| originalPositionFor, |
| presortedDecodedMap, |
| sourceContentFor, |
| traceSegment |
| }; |
| |
|
|