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Copyright 2022 Justin Ridgewell <justin@ridgewell.name>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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# @jridgewell/trace-mapping
> Trace the original position through a source map
`trace-mapping` allows you to take the line and column of an output file and trace it to the
original location in the source file through a source map.
You may already be familiar with the [`source-map`][source-map] package's `SourceMapConsumer`. This
provides the same `originalPositionFor` API, without requires WASM.
## Installation
```sh
npm install @jridgewell/trace-mapping
```
## Usage
```typescript
import { TraceMap, originalPositionFor } from '@jridgewell/trace-mapping';
const tracer = new TraceMap({
version: 3,
sources: ['input.js'],
names: ['foo'],
mappings: 'KAyCIA',
});
// Lines start at line 1, columns at column 0.
const traced = originalPositionFor(tracer, { line: 1, column: 5 });
assert.deepEqual(traced, {
source: 'input.js',
line: 42,
column: 4,
name: 'foo',
});
```
We also provide a lower level API to get the actual segment that matches our line and column. Unlike
`originalPositionFor`, `traceSegment` uses a 0-base for `line`:
```typescript
import { originalPositionFor } from '@jridgewell/trace-mapping';
// line is 0-base.
const traced = traceSegment(tracer, /* line */ 0, /* column */ 5);
// Segments are [outputColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex]
// Again, line is 0-base and so is sourceLine
assert.deepEqual(traced, [5, 0, 41, 4, 0]);
```
## Benchmarks
`trace-mapping` is the fastest source map tracing library, by a factor of 4-10x when
constructing/parsing source maps and another 6-10x when using `originalPositionFor` on an already
constructed instance.
```
node v16.13.2
trace-mapping: decoded JSON input x 7,224 ops/sec ±0.24% (99 runs sampled)
trace-mapping: encoded JSON input x 22,539 ops/sec ±0.17% (98 runs sampled)
trace-mapping: decoded Object input x 161,786 ops/sec ±0.11% (101 runs sampled)
trace-mapping: encoded Object input x 24,485 ops/sec ±0.10% (100 runs sampled)
source-map-js: encoded Object input x 6,195 ops/sec ±0.36% (100 runs sampled)
source-map: encoded Object input x 2,602 ops/sec ±0.16% (100 runs sampled)
Fastest is trace-mapping: decoded Object input
trace-mapping: decoded originalPositionFor x 19,860 ops/sec ±0.11% (101 runs sampled)
trace-mapping: encoded originalPositionFor x 19,250 ops/sec ±0.23% (100 runs sampled)
source-map-js: encoded originalPositionFor x 2,897 ops/sec ±0.09% (100 runs sampled)
source-map: encoded originalPositionFor x 1,571 ops/sec ±0.10% (100 runs sampled)
Fastest is trace-mapping: decoded originalPositionFor
```
[source-map]: https://www.npmjs.com/package/source-map
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import { decode, encode } from '@jridgewell/sourcemap-codec';
import resolveUri from '@jridgewell/resolve-uri';
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 resolveUri(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);
}
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][0] < line[j - 1][0]) {
return false;
}
}
return true;
}
function sortSegments(line, owned) {
if (!owned)
line = line.slice();
return line.sort(sortComparator);
}
function sortComparator(a, b) {
return a[0] - b[0];
}
/**
* 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][0] - needle;
if (cmp === 0) {
return mid;
}
if (cmp < 0) {
low = mid + 1;
}
else {
high = mid - 1;
}
}
return low - 1;
}
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) {
return lastIndex;
}
if (needle >= lastNeedle) {
// lastIndex may be -1 if the previous needle was not found.
low = Math.max(lastIndex, 0);
}
else {
high = lastIndex;
}
}
state.lastKey = key;
state.lastNeedle = needle;
return (state.lastIndex = binarySearch(haystack, needle, low, high));
}
const INVALID_MAPPING = Object.freeze({
source: null,
line: null,
column: null,
name: null,
});
/**
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
*/
let encodedMappings;
/**
* Returns the decoded (array of lines of segments) form of the SourceMap's mappings field.
*/
let decodedMappings;
/**
* A low-level API to find the segment associated with a generated line/column (think, from a
* stack trace). Line and column here are 0-based, unlike `originalPositionFor`.
*/
let traceSegment;
/**
* 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.
*/
let originalPositionFor;
/**
* Iterates each mapping in generated position order.
*/
let eachMapping;
/**
* A helper that skips sorting of the input map's mappings array, which can be expensive for larger
* maps.
*/
let presortedDecodedMap;
class TraceMap {
constructor(map, mapUrl) {
this._binarySearchMemo = memoizedState();
const isString = typeof map === 'string';
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;
if (sourceRoot || mapUrl) {
const from = resolve(sourceRoot || '', stripFilename(mapUrl));
this.resolvedSources = sources.map((s) => resolve(s || '', from));
}
else {
this.resolvedSources = sources.map((s) => s || '');
}
const { mappings } = parsed;
if (typeof mappings === 'string') {
this._encoded = mappings;
this._decoded = decode(mappings);
}
else {
this._encoded = undefined;
this._decoded = maybeSort(mappings, isString);
}
}
}
(() => {
encodedMappings = (map) => {
var _a;
return ((_a = map._encoded) !== null && _a !== void 0 ? _a : (map._encoded = encode(map._decoded)));
};
decodedMappings = (map) => {
return map._decoded;
};
traceSegment = (map, line, column) => {
const decoded = map._decoded;
// 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 null;
const segments = decoded[line];
const index = memoizedBinarySearch(segments, column, map._binarySearchMemo, line);
// we come before any mapped segment
if (index < 0)
return null;
return segments[index];
};
originalPositionFor = (map, { line, column }) => {
if (line < 1)
throw new Error('`line` must be greater than 0 (lines start at line 1)');
if (column < 0) {
throw new Error('`column` must be greater than or equal to 0 (columns start at column 0)');
}
const segment = traceSegment(map, line - 1, column);
if (segment == null)
return INVALID_MAPPING;
if (segment.length == 1)
return INVALID_MAPPING;
const { names, resolvedSources } = map;
return {
source: resolvedSources[segment[1]],
line: segment[2] + 1,
column: segment[3],
name: segment.length === 5 ? names[segment[4]] : null,
};
};
eachMapping = (map, cb) => {
const decoded = map._decoded;
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,
});
}
}
};
presortedDecodedMap = (map, mapUrl) => {
const clone = Object.assign({}, map);
clone.mappings = [];
const tracer = new TraceMap(clone, mapUrl);
tracer._decoded = map.mappings;
return tracer;
};
})();
export { TraceMap, decodedMappings, eachMapping, encodedMappings, originalPositionFor, presortedDecodedMap, traceSegment };
//# sourceMappingURL=trace-mapping.mjs.map
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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@jridgewell/sourcemap-codec'), require('@jridgewell/resolve-uri')) :
typeof define === 'function' && define.amd ? define(['exports', '@jridgewell/sourcemap-codec', '@jridgewell/resolve-uri'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.traceMapping = {}, global.sourcemapCodec, global.resolveURI));
})(this, (function (exports, sourcemapCodec, resolveUri) { 'use strict';
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
var resolveUri__default = /*#__PURE__*/_interopDefaultLegacy(resolveUri);
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 resolveUri__default["default"](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);
}
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][0] < line[j - 1][0]) {
return false;
}
}
return true;
}
function sortSegments(line, owned) {
if (!owned)
line = line.slice();
return line.sort(sortComparator);
}
function sortComparator(a, b) {
return a[0] - b[0];
}
/**
* 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][0] - needle;
if (cmp === 0) {
return mid;
}
if (cmp < 0) {
low = mid + 1;
}
else {
high = mid - 1;
}
}
return low - 1;
}
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) {
return lastIndex;
}
if (needle >= lastNeedle) {
// lastIndex may be -1 if the previous needle was not found.
low = Math.max(lastIndex, 0);
}
else {
high = lastIndex;
}
}
state.lastKey = key;
state.lastNeedle = needle;
return (state.lastIndex = binarySearch(haystack, needle, low, high));
}
const INVALID_MAPPING = Object.freeze({
source: null,
line: null,
column: null,
name: null,
});
/**
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
*/
exports.encodedMappings = void 0;
/**
* Returns the decoded (array of lines of segments) form of the SourceMap's mappings field.
*/
exports.decodedMappings = void 0;
/**
* A low-level API to find the segment associated with a generated line/column (think, from a
* stack trace). Line and column here are 0-based, unlike `originalPositionFor`.
*/
exports.traceSegment = void 0;
/**
* 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.
*/
exports.originalPositionFor = void 0;
/**
* Iterates each mapping in generated position order.
*/
exports.eachMapping = void 0;
/**
* A helper that skips sorting of the input map's mappings array, which can be expensive for larger
* maps.
*/
exports.presortedDecodedMap = void 0;
class TraceMap {
constructor(map, mapUrl) {
this._binarySearchMemo = memoizedState();
const isString = typeof map === 'string';
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;
if (sourceRoot || mapUrl) {
const from = resolve(sourceRoot || '', stripFilename(mapUrl));
this.resolvedSources = sources.map((s) => resolve(s || '', from));
}
else {
this.resolvedSources = sources.map((s) => s || '');
}
const { mappings } = parsed;
if (typeof mappings === 'string') {
this._encoded = mappings;
this._decoded = sourcemapCodec.decode(mappings);
}
else {
this._encoded = undefined;
this._decoded = maybeSort(mappings, isString);
}
}
}
(() => {
exports.encodedMappings = (map) => {
var _a;
return ((_a = map._encoded) !== null && _a !== void 0 ? _a : (map._encoded = sourcemapCodec.encode(map._decoded)));
};
exports.decodedMappings = (map) => {
return map._decoded;
};
exports.traceSegment = (map, line, column) => {
const decoded = map._decoded;
// 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 null;
const segments = decoded[line];
const index = memoizedBinarySearch(segments, column, map._binarySearchMemo, line);
// we come before any mapped segment
if (index < 0)
return null;
return segments[index];
};
exports.originalPositionFor = (map, { line, column }) => {
if (line < 1)
throw new Error('`line` must be greater than 0 (lines start at line 1)');
if (column < 0) {
throw new Error('`column` must be greater than or equal to 0 (columns start at column 0)');
}
const segment = exports.traceSegment(map, line - 1, column);
if (segment == null)
return INVALID_MAPPING;
if (segment.length == 1)
return INVALID_MAPPING;
const { names, resolvedSources } = map;
return {
source: resolvedSources[segment[1]],
line: segment[2] + 1,
column: segment[3],
name: segment.length === 5 ? names[segment[4]] : null,
};
};
exports.eachMapping = (map, cb) => {
const decoded = map._decoded;
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,
});
}
}
};
exports.presortedDecodedMap = (map, mapUrl) => {
const clone = Object.assign({}, map);
clone.mappings = [];
const tracer = new TraceMap(clone, mapUrl);
tracer._decoded = map.mappings;
return tracer;
};
})();
exports.TraceMap = TraceMap;
Object.defineProperty(exports, '__esModule', { value: true });
}));
//# sourceMappingURL=trace-mapping.umd.js.map
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import type { SourceMapSegment } from './types';
declare type MemoState = {
lastKey: number;
lastNeedle: number;
lastIndex: number;
};
/**
* 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]);
* ```
*/
export declare function binarySearch(haystack: SourceMapSegment[], needle: number, low: number, high: number): number;
export declare function memoizedState(): MemoState;
/**
* 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.
*/
export declare function memoizedBinarySearch(haystack: SourceMapSegment[], needle: number, state: MemoState, key: number): number;
export {};
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export default function resolve(input: string, base: string | undefined): string;
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import type { SourceMapSegment } from './types';
export default function maybeSort(mappings: SourceMapSegment[][], owned: boolean): SourceMapSegment[][];
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/**
* Removes everything after the last "/", but leaves the slash.
*/
export default function stripFilename(path: string | undefined | null): string;
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import type { SourceMapV3, DecodedSourceMap, EncodedSourceMap, InvalidMapping, OriginalMapping, SourceMapSegment, SourceMapInput, Needle, SourceMap, EachMapping } from './types';
export type { SourceMapSegment, SourceMapInput, DecodedSourceMap, EncodedSourceMap, InvalidMapping, OriginalMapping as Mapping, OriginalMapping, EachMapping, } from './types';
/**
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
*/
export declare let encodedMappings: (map: TraceMap) => EncodedSourceMap['mappings'];
/**
* Returns the decoded (array of lines of segments) form of the SourceMap's mappings field.
*/
export declare let decodedMappings: (map: TraceMap) => Readonly<DecodedSourceMap['mappings']>;
/**
* A low-level API to find the segment associated with a generated line/column (think, from a
* stack trace). Line and column here are 0-based, unlike `originalPositionFor`.
*/
export declare let traceSegment: (map: TraceMap, line: number, column: number) => Readonly<SourceMapSegment> | null;
/**
* 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.
*/
export declare let originalPositionFor: (map: TraceMap, needle: Needle) => OriginalMapping | InvalidMapping;
/**
* Iterates each mapping in generated position order.
*/
export declare let eachMapping: (map: TraceMap, cb: (mapping: EachMapping) => void) => void;
/**
* A helper that skips sorting of the input map's mappings array, which can be expensive for larger
* maps.
*/
export declare let presortedDecodedMap: (map: DecodedSourceMap, mapUrl?: string) => TraceMap;
export declare class TraceMap implements SourceMap {
version: SourceMapV3['version'];
file: SourceMapV3['file'];
names: SourceMapV3['names'];
sourceRoot: SourceMapV3['sourceRoot'];
sources: SourceMapV3['sources'];
sourcesContent: SourceMapV3['sourcesContent'];
resolvedSources: string[];
private _encoded;
private _decoded;
private _binarySearchMemo;
constructor(map: SourceMapInput, mapUrl?: string | null);
}
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export interface SourceMapV3 {
file?: string | null;
names: string[];
sourceRoot?: string;
sources: (string | null)[];
sourcesContent?: (string | null)[];
version: 3;
}
declare type Column = number;
declare type SourcesIndex = number;
declare type SourceLine = number;
declare type SourceColumn = number;
declare type NamesIndex = number;
export declare type SourceMapSegment = [Column] | [Column, SourcesIndex, SourceLine, SourceColumn] | [Column, SourcesIndex, SourceLine, SourceColumn, NamesIndex];
export interface EncodedSourceMap extends SourceMapV3 {
mappings: string;
}
export interface DecodedSourceMap extends SourceMapV3 {
mappings: SourceMapSegment[][];
}
export declare type OriginalMapping = {
source: string | null;
line: number;
column: number;
name: string | null;
};
export declare type InvalidMapping = {
source: null;
line: null;
column: null;
name: null;
};
export declare type SourceMapInput = string | EncodedSourceMap | DecodedSourceMap;
export declare type Needle = {
line: number;
column: number;
};
export declare type EachMapping = {
generatedLine: number;
generatedColumn: number;
source: null;
originalLine: null;
originalColumn: null;
name: null;
} | {
generatedLine: number;
generatedColumn: number;
source: string | null;
originalLine: number;
originalColumn: number;
name: string | null;
};
export declare abstract class SourceMap {
version: SourceMapV3['version'];
file: SourceMapV3['file'];
names: SourceMapV3['names'];
sourceRoot: SourceMapV3['sourceRoot'];
sources: SourceMapV3['sources'];
sourcesContent: SourceMapV3['sourcesContent'];
resolvedSources: SourceMapV3['sources'];
}
export {};
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{
"name": "@jridgewell/trace-mapping",
"version": "0.3.4",
"description": "Trace the original position through a source map",
"keywords": [
"source",
"map"
],
"main": "dist/trace-mapping.umd.js",
"module": "dist/trace-mapping.mjs",
"typings": "dist/types/trace-mapping.d.ts",
"files": [
"dist"
],
"exports": {
".": {
"browser": "./dist/trace-mapping.umd.js",
"require": "./dist/trace-mapping.umd.js",
"import": "./dist/trace-mapping.mjs"
},
"./package.json": "./package.json"
},
"author": "Justin Ridgewell <justin@ridgewell.name>",
"repository": {
"type": "git",
"url": "git+https://github.com/jridgewell/trace-mapping.git"
},
"license": "MIT",
"scripts": {
"benchmark": "run-s build:rollup benchmark:only",
"benchmark:only": "node benchmark/index.mjs",
"build": "run-s -n build:*",
"build:rollup": "rollup -c rollup.config.js",
"build:ts": "tsc --project tsconfig.build.json",
"lint": "run-s -n lint:*",
"lint:prettier": "npm run test:lint:prettier -- --write",
"lint:ts": "npm run test:lint:ts -- --fix",
"prebuild": "rm -rf dist",
"prepublishOnly": "npm run preversion",
"preversion": "run-s test build",
"test": "run-s -n test:lint test:only",
"test:debug": "ava debug",
"test:lint": "run-s -n test:lint:*",
"test:lint:prettier": "prettier --check '{src,test}/**/*.ts'",
"test:lint:ts": "eslint '{src,test}/**/*.ts'",
"test:only": "c8 ava",
"test:watch": "ava --watch"
},
"devDependencies": {
"@rollup/plugin-typescript": "8.3.0",
"@typescript-eslint/eslint-plugin": "5.10.0",
"@typescript-eslint/parser": "5.10.0",
"ava": "4.0.1",
"benchmark": "2.1.4",
"c8": "7.11.0",
"esbuild": "0.14.14",
"esbuild-node-loader": "0.6.4",
"eslint": "8.7.0",
"eslint-config-prettier": "8.3.0",
"npm-run-all": "4.1.5",
"prettier": "2.5.1",
"rollup": "2.64.0",
"source-map": "0.6.1",
"source-map-js": "1.0.2",
"typescript": "4.5.4"
},
"dependencies": {
"@jridgewell/resolve-uri": "^3.0.3",
"@jridgewell/sourcemap-codec": "^1.4.10"
}
}