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@jridgewell/trace-mapping

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Comparing version 0.3.22 to 0.3.23

344

dist/trace-mapping.umd.js

@@ -173,4 +173,5 @@ (function (global, factory) {

// indexes before we find where we need to insert.
const index = upperBound(originalLine, sourceColumn, memoizedBinarySearch(originalLine, sourceColumn, memo, sourceLine));
insert(originalLine, (memo.lastIndex = index + 1), [sourceColumn, i, seg[COLUMN]]);
let index = upperBound(originalLine, sourceColumn, memoizedBinarySearch(originalLine, sourceColumn, memo, sourceLine));
memo.lastIndex = ++index;
insert(originalLine, index, [sourceColumn, i, seg[COLUMN]]);
}

@@ -212,3 +213,3 @@ }

};
return exports.presortedDecodedMap(joined);
return presortedDecodedMap(joined);
};

@@ -240,3 +241,3 @@ function recurse(input, mapUrl, mappings, sources, sourcesContent, names, lineOffset, columnOffset, stopLine, stopColumn) {

const namesOffset = names.length;
const decoded = exports.decodedMappings(map);
const decoded = decodedMappings(map);
const { resolvedSources, sourcesContent: contents } = map;

@@ -299,10 +300,53 @@ append(sources, resolvedSources);

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;
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(map) {
return map;
}
/**
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
*/
exports.encodedMappings = void 0;
function encodedMappings(map) {
var _a;
var _b;
return ((_a = (_b = cast(map))._encoded) !== null && _a !== void 0 ? _a : (_b._encoded = sourcemapCodec.encode(cast(map)._decoded)));
}
/**
* Returns the decoded (array of lines of segments) form of the SourceMap's mappings field.
*/
exports.decodedMappings = void 0;
function decodedMappings(map) {
var _a;
return ((_a = cast(map))._decoded || (_a._decoded = sourcemapCodec.decode(cast(map)._encoded)));
}
/**

@@ -312,3 +356,12 @@ * A low-level API to find the segment associated with a generated line/column (think, from a

*/
exports.traceSegment = void 0;
function traceSegment(map, line, column) {
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 null;
const segments = decoded[line];
const index = traceSegmentInternal(segments, cast(map)._decodedMemo, line, column, GREATEST_LOWER_BOUND);
return index === -1 ? null : segments[index];
}
/**

@@ -319,19 +372,85 @@ * A higher-level API to find the source/line/column associated with a generated line/column

*/
exports.originalPositionFor = void 0;
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(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);
}
/**
* Finds the generated line/column position of the provided source/line/column source position.
*/
exports.generatedPositionFor = void 0;
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.
*/
exports.allGeneratedPositionsFor = void 0;
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.
*/
exports.eachMapping = void 0;
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,
});
}
}
}
/**
* Retrieves the source content for a particular source, if its found. Returns null if not.
*/
exports.sourceContentFor = void 0;
function sourceContentFor(map, source) {
const { sources, resolvedSources, sourcesContent } = map;
if (sourcesContent == null)
return null;
let index = sources.indexOf(source);
if (index === -1)
index = resolvedSources.indexOf(source);
return index === -1 ? null : sourcesContent[index];
}
/**

@@ -341,3 +460,7 @@ * A helper that skips sorting of the input map's mappings array, which can be expensive for larger

*/
exports.presortedDecodedMap = void 0;
function presortedDecodedMap(map, mapUrl) {
const tracer = new TraceMap(clone(map, []), mapUrl);
cast(tracer)._decoded = map.mappings;
return tracer;
}
/**

@@ -347,3 +470,5 @@ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects

*/
exports.decodedMap = void 0;
function decodedMap(map) {
return clone(map, decodedMappings(map));
}
/**

@@ -353,155 +478,5 @@ * Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects

*/
exports.encodedMap = void 0;
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;
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;
}
function encodedMap(map) {
return clone(map, encodedMappings(map));
}
(() => {
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 || (map._decoded = sourcemapCodec.decode(map._encoded)));
};
exports.traceSegment = (map, line, column) => {
const decoded = exports.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 null;
const segments = decoded[line];
const index = traceSegmentInternal(segments, map._decodedMemo, line, column, GREATEST_LOWER_BOUND);
return index === -1 ? null : segments[index];
};
exports.originalPositionFor = (map, { line, column, bias }) => {
line--;
if (line < 0)
throw new Error(LINE_GTR_ZERO);
if (column < 0)
throw new Error(COL_GTR_EQ_ZERO);
const decoded = exports.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, 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);
};
exports.allGeneratedPositionsFor = (map, { source, line, column, bias }) => {
// SourceMapConsumer uses LEAST_UPPER_BOUND for some reason, so we follow suit.
return generatedPosition(map, source, line, column, bias || LEAST_UPPER_BOUND, true);
};
exports.generatedPositionFor = (map, { source, line, column, bias }) => {
return generatedPosition(map, source, line, column, bias || GREATEST_LOWER_BOUND, false);
};
exports.eachMapping = (map, cb) => {
const decoded = exports.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,
});
}
}
};
exports.sourceContentFor = (map, source) => {
const { sources, resolvedSources, sourcesContent } = map;
if (sourcesContent == null)
return null;
let index = sources.indexOf(source);
if (index === -1)
index = resolvedSources.indexOf(source);
return index === -1 ? null : sourcesContent[index];
};
exports.presortedDecodedMap = (map, mapUrl) => {
const tracer = new TraceMap(clone(map, []), mapUrl);
tracer._decoded = map.mappings;
return tracer;
};
exports.decodedMap = (map) => {
return clone(map, exports.decodedMappings(map));
};
exports.encodedMap = (map) => {
return clone(map, exports.encodedMappings(map));
};
function generatedPosition(map, source, line, column, bias, all) {
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 = (map._bySources || (map._bySources = buildBySources(exports.decodedMappings(map), (map._bySourceMemos = sources.map(memoizedState)))));
const segments = generated[sourceIndex][line];
if (segments == null)
return all ? [] : GMapping(null, null);
const memo = 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]);
}
})();
function clone(map, mappings) {

@@ -562,2 +537,28 @@ return {

}
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(map))._bySources || (_a._bySources = buildBySources(decodedMappings(map), (cast(map)._bySourceMemos = sources.map(memoizedState)))));
const segments = generated[sourceIndex][line];
if (segments == null)
return all ? [] : GMapping(null, null);
const memo = cast(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]);
}

@@ -568,4 +569,15 @@ exports.AnyMap = AnyMap;

exports.TraceMap = TraceMap;
exports.allGeneratedPositionsFor = allGeneratedPositionsFor;
exports.decodedMap = decodedMap;
exports.decodedMappings = decodedMappings;
exports.eachMapping = eachMapping;
exports.encodedMap = encodedMap;
exports.encodedMappings = encodedMappings;
exports.generatedPositionFor = generatedPositionFor;
exports.originalPositionFor = originalPositionFor;
exports.presortedDecodedMap = presortedDecodedMap;
exports.sourceContentFor = sourceContentFor;
exports.traceSegment = traceSegment;
}));
//# sourceMappingURL=trace-mapping.umd.js.map

54

dist/types/trace-mapping.d.ts

@@ -7,10 +7,26 @@ import type { SourceMapSegment } from './sourcemap-segment';

export declare const GREATEST_LOWER_BOUND = 1;
export { AnyMap } from './any-map';
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 _decodedMemo;
private _bySources;
private _bySourceMemos;
constructor(map: SourceMapInput, mapUrl?: string | null);
}
/**
* Returns the encoded (VLQ string) form of the SourceMap's mappings field.
*/
export declare let encodedMappings: (map: TraceMap) => EncodedSourceMap['mappings'];
export declare function 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']>;
export declare function decodedMappings(map: TraceMap): Readonly<DecodedSourceMap['mappings']>;
/**

@@ -20,3 +36,3 @@ * A low-level API to find the segment associated with a generated line/column (think, from a

*/
export declare let traceSegment: (map: TraceMap, line: number, column: number) => Readonly<SourceMapSegment> | null;
export declare function traceSegment(map: TraceMap, line: number, column: number): Readonly<SourceMapSegment> | null;
/**

@@ -27,19 +43,19 @@ * A higher-level API to find the source/line/column associated with a generated line/column

*/
export declare let originalPositionFor: (map: TraceMap, needle: Needle) => OriginalMapping | InvalidOriginalMapping;
export declare function originalPositionFor(map: TraceMap, needle: Needle): OriginalMapping | InvalidOriginalMapping;
/**
* Finds the generated line/column position of the provided source/line/column source position.
*/
export declare let generatedPositionFor: (map: TraceMap, needle: SourceNeedle) => GeneratedMapping | InvalidGeneratedMapping;
export declare function generatedPositionFor(map: TraceMap, needle: SourceNeedle): GeneratedMapping | InvalidGeneratedMapping;
/**
* Finds all generated line/column positions of the provided source/line/column source position.
*/
export declare let allGeneratedPositionsFor: (map: TraceMap, needle: SourceNeedle) => GeneratedMapping[];
export declare function allGeneratedPositionsFor(map: TraceMap, needle: SourceNeedle): GeneratedMapping[];
/**
* Iterates each mapping in generated position order.
*/
export declare let eachMapping: (map: TraceMap, cb: (mapping: EachMapping) => void) => void;
export declare function eachMapping(map: TraceMap, cb: (mapping: EachMapping) => void): void;
/**
* Retrieves the source content for a particular source, if its found. Returns null if not.
*/
export declare let sourceContentFor: (map: TraceMap, source: string) => string | null;
export declare function sourceContentFor(map: TraceMap, source: string): string | null;
/**

@@ -49,3 +65,3 @@ * A helper that skips sorting of the input map's mappings array, which can be expensive for larger

*/
export declare let presortedDecodedMap: (map: DecodedSourceMap, mapUrl?: string) => TraceMap;
export declare function presortedDecodedMap(map: DecodedSourceMap, mapUrl?: string): TraceMap;
/**

@@ -55,3 +71,3 @@ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects

*/
export declare let decodedMap: (map: TraceMap) => Omit<DecodedSourceMap, 'mappings'> & {
export declare function decodedMap(map: TraceMap): Omit<DecodedSourceMap, 'mappings'> & {
mappings: readonly SourceMapSegment[][];

@@ -63,18 +79,2 @@ };

*/
export declare let encodedMap: (map: TraceMap) => EncodedSourceMap;
export { AnyMap } from './any-map';
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 _decodedMemo;
private _bySources;
private _bySourceMemos;
constructor(map: SourceMapInput, mapUrl?: string | null);
}
export declare function encodedMap(map: TraceMap): EncodedSourceMap;

12

package.json
{
"name": "@jridgewell/trace-mapping",
"version": "0.3.22",
"version": "0.3.23",
"description": "Trace the original position through a source map",

@@ -47,14 +47,15 @@ "keywords": [

"test": "run-s -n test:lint test:only",
"test:debug": "ava debug",
"test:debug": "mocha --inspect-brk",
"test:lint": "run-s -n test:lint:*",
"test:lint:prettier": "prettier --check '{src,test}/**/*.ts' '**/*.md'",
"test:lint:ts": "eslint '{src,test}/**/*.ts'",
"test:only": "c8 ava",
"test:watch": "ava --watch"
"test:only": "c8 mocha",
"test:watch": "mocha --watch"
},
"devDependencies": {
"@rollup/plugin-typescript": "11.1.6",
"@types/mocha": "10.0.6",
"@types/node": "20.11.20",
"@typescript-eslint/eslint-plugin": "6.18.1",
"@typescript-eslint/parser": "6.18.1",
"ava": "6.0.1",
"benchmark": "2.1.4",

@@ -66,2 +67,3 @@ "c8": "9.0.0",

"eslint-plugin-no-only-tests": "3.1.0",
"mocha": "10.3.0",
"npm-run-all": "4.1.5",

@@ -68,0 +70,0 @@ "prettier": "3.1.1",

dist/trace-mapping.mjs

Sorry, the diff of this file is not supported yet

dist/trace-mapping.mjs.map

Sorry, the diff of this file is not supported yet

dist/trace-mapping.umd.js.map

Sorry, the diff of this file is not supported yet

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