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Diffstat (limited to 'node_modules/@jridgewell/sourcemap-codec')
8 files changed, 499 insertions, 0 deletions
diff --git a/node_modules/@jridgewell/sourcemap-codec/LICENSE b/node_modules/@jridgewell/sourcemap-codec/LICENSE new file mode 100644 index 0000000..a331065 --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/LICENSE @@ -0,0 +1,21 @@ +The MIT License + +Copyright (c) 2015 Rich Harris + +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. diff --git a/node_modules/@jridgewell/sourcemap-codec/README.md b/node_modules/@jridgewell/sourcemap-codec/README.md new file mode 100644 index 0000000..e4373aa --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/README.md @@ -0,0 +1,63 @@ +# sourcemap-codec + +Encode/decode the `mappings` property of a [sourcemap](https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit). + + +## Why? + +Sourcemaps are difficult to generate and manipulate, because the `mappings` property – the part that actually links the generated code back to the original source – is encoded using an obscure method called [Variable-length quantity](https://en.wikipedia.org/wiki/Variable-length_quantity). On top of that, each segment in the mapping contains offsets rather than absolute indices, which means that you can't look at a segment in isolation – you have to understand the whole sourcemap. + +This package makes the process slightly easier. + + +## Installation + +```bash +npm install sourcemap-codec +``` + + +## Usage + +```js +import { encode, decode } from 'sourcemap-codec'; + +var decoded = decode( ';EAEEA,EAAE,EAAC,CAAE;ECQY,UACC' ); + +assert.deepEqual( decoded, [ + // the first line (of the generated code) has no mappings, + // as shown by the starting semi-colon (which separates lines) + [], + + // the second line contains four (comma-separated) segments + [ + // segments are encoded as you'd expect: + // [ generatedCodeColumn, sourceIndex, sourceCodeLine, sourceCodeColumn, nameIndex ] + + // i.e. the first segment begins at column 2, and maps back to the second column + // of the second line (both zero-based) of the 0th source, and uses the 0th + // name in the `map.names` array + [ 2, 0, 2, 2, 0 ], + + // the remaining segments are 4-length rather than 5-length, + // because they don't map a name + [ 4, 0, 2, 4 ], + [ 6, 0, 2, 5 ], + [ 7, 0, 2, 7 ] + ], + + // the final line contains two segments + [ + [ 2, 1, 10, 19 ], + [ 12, 1, 11, 20 ] + ] +]); + +var encoded = encode( decoded ); +assert.equal( encoded, ';EAEEA,EAAE,EAAC,CAAE;ECQY,UACC' ); +``` + + +# License + +MIT diff --git a/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs new file mode 100644 index 0000000..4e92c1e --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs @@ -0,0 +1,164 @@ +const comma = ','.charCodeAt(0); +const semicolon = ';'.charCodeAt(0); +const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; +const intToChar = new Uint8Array(64); // 64 possible chars. +const charToInteger = new Uint8Array(128); // z is 122 in ASCII +for (let i = 0; i < chars.length; i++) { + const c = chars.charCodeAt(i); + charToInteger[c] = i; + intToChar[i] = c; +} +// Provide a fallback for older environments. +const td = typeof TextDecoder !== 'undefined' + ? new TextDecoder() + : typeof Buffer !== 'undefined' + ? { + decode(buf) { + const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength); + return out.toString(); + }, + } + : { + decode(buf) { + let out = ''; + for (let i = 0; i < buf.length; i++) { + out += String.fromCharCode(buf[i]); + } + return out; + }, + }; +function decode(mappings) { + const state = new Int32Array(5); + const decoded = []; + let line = []; + let sorted = true; + let lastCol = 0; + for (let i = 0; i < mappings.length;) { + const c = mappings.charCodeAt(i); + if (c === comma) { + i++; + } + else if (c === semicolon) { + state[0] = lastCol = 0; + if (!sorted) + sort(line); + sorted = true; + decoded.push(line); + line = []; + i++; + } + else { + i = decodeInteger(mappings, i, state, 0); // generatedCodeColumn + const col = state[0]; + if (col < lastCol) + sorted = false; + lastCol = col; + if (!hasMoreSegments(mappings, i)) { + line.push([col]); + continue; + } + i = decodeInteger(mappings, i, state, 1); // sourceFileIndex + i = decodeInteger(mappings, i, state, 2); // sourceCodeLine + i = decodeInteger(mappings, i, state, 3); // sourceCodeColumn + if (!hasMoreSegments(mappings, i)) { + line.push([col, state[1], state[2], state[3]]); + continue; + } + i = decodeInteger(mappings, i, state, 4); // nameIndex + line.push([col, state[1], state[2], state[3], state[4]]); + } + } + if (!sorted) + sort(line); + decoded.push(line); + return decoded; +} +function decodeInteger(mappings, pos, state, j) { + let value = 0; + let shift = 0; + let integer = 0; + do { + const c = mappings.charCodeAt(pos++); + integer = charToInteger[c]; + value |= (integer & 31) << shift; + shift += 5; + } while (integer & 32); + const shouldNegate = value & 1; + value >>>= 1; + if (shouldNegate) { + value = -0x80000000 | -value; + } + state[j] += value; + return pos; +} +function hasMoreSegments(mappings, i) { + if (i >= mappings.length) + return false; + const c = mappings.charCodeAt(i); + if (c === comma || c === semicolon) + return false; + return true; +} +function sort(line) { + line.sort(sortComparator); +} +function sortComparator(a, b) { + return a[0] - b[0]; +} +function encode(decoded) { + const state = new Int32Array(5); + let buf = new Uint8Array(1024); + let pos = 0; + for (let i = 0; i < decoded.length; i++) { + const line = decoded[i]; + if (i > 0) { + buf = reserve(buf, pos, 1); + buf[pos++] = semicolon; + } + if (line.length === 0) + continue; + state[0] = 0; + for (let j = 0; j < line.length; j++) { + const segment = line[j]; + // We can push up to 5 ints, each int can take at most 7 chars, and we + // may push a comma. + buf = reserve(buf, pos, 36); + if (j > 0) + buf[pos++] = comma; + pos = encodeInteger(buf, pos, state, segment, 0); // generatedCodeColumn + if (segment.length === 1) + continue; + pos = encodeInteger(buf, pos, state, segment, 1); // sourceFileIndex + pos = encodeInteger(buf, pos, state, segment, 2); // sourceCodeLine + pos = encodeInteger(buf, pos, state, segment, 3); // sourceCodeColumn + if (segment.length === 4) + continue; + pos = encodeInteger(buf, pos, state, segment, 4); // nameIndex + } + } + return td.decode(buf.subarray(0, pos)); +} +function reserve(buf, pos, count) { + if (buf.length > pos + count) + return buf; + const swap = new Uint8Array(buf.length * 2); + swap.set(buf); + return swap; +} +function encodeInteger(buf, pos, state, segment, j) { + const next = segment[j]; + let num = next - state[j]; + state[j] = next; + num = num < 0 ? (-num << 1) | 1 : num << 1; + do { + let clamped = num & 0b011111; + num >>>= 5; + if (num > 0) + clamped |= 0b100000; + buf[pos++] = intToChar[clamped]; + } while (num > 0); + return pos; +} + +export { decode, encode }; +//# sourceMappingURL=sourcemap-codec.mjs.map diff --git a/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs.map b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs.map new file mode 100644 index 0000000..f3f6e2d --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js new file mode 100644 index 0000000..b5aa0c4 --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js @@ -0,0 +1,175 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.sourcemapCodec = {})); +})(this, (function (exports) { 'use strict'; + + const comma = ','.charCodeAt(0); + const semicolon = ';'.charCodeAt(0); + const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + const intToChar = new Uint8Array(64); // 64 possible chars. + const charToInteger = new Uint8Array(128); // z is 122 in ASCII + for (let i = 0; i < chars.length; i++) { + const c = chars.charCodeAt(i); + charToInteger[c] = i; + intToChar[i] = c; + } + // Provide a fallback for older environments. + const td = typeof TextDecoder !== 'undefined' + ? new TextDecoder() + : typeof Buffer !== 'undefined' + ? { + decode(buf) { + const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength); + return out.toString(); + }, + } + : { + decode(buf) { + let out = ''; + for (let i = 0; i < buf.length; i++) { + out += String.fromCharCode(buf[i]); + } + return out; + }, + }; + function decode(mappings) { + const state = new Int32Array(5); + const decoded = []; + let line = []; + let sorted = true; + let lastCol = 0; + for (let i = 0; i < mappings.length;) { + const c = mappings.charCodeAt(i); + if (c === comma) { + i++; + } + else if (c === semicolon) { + state[0] = lastCol = 0; + if (!sorted) + sort(line); + sorted = true; + decoded.push(line); + line = []; + i++; + } + else { + i = decodeInteger(mappings, i, state, 0); // generatedCodeColumn + const col = state[0]; + if (col < lastCol) + sorted = false; + lastCol = col; + if (!hasMoreSegments(mappings, i)) { + line.push([col]); + continue; + } + i = decodeInteger(mappings, i, state, 1); // sourceFileIndex + i = decodeInteger(mappings, i, state, 2); // sourceCodeLine + i = decodeInteger(mappings, i, state, 3); // sourceCodeColumn + if (!hasMoreSegments(mappings, i)) { + line.push([col, state[1], state[2], state[3]]); + continue; + } + i = decodeInteger(mappings, i, state, 4); // nameIndex + line.push([col, state[1], state[2], state[3], state[4]]); + } + } + if (!sorted) + sort(line); + decoded.push(line); + return decoded; + } + function decodeInteger(mappings, pos, state, j) { + let value = 0; + let shift = 0; + let integer = 0; + do { + const c = mappings.charCodeAt(pos++); + integer = charToInteger[c]; + value |= (integer & 31) << shift; + shift += 5; + } while (integer & 32); + const shouldNegate = value & 1; + value >>>= 1; + if (shouldNegate) { + value = -0x80000000 | -value; + } + state[j] += value; + return pos; + } + function hasMoreSegments(mappings, i) { + if (i >= mappings.length) + return false; + const c = mappings.charCodeAt(i); + if (c === comma || c === semicolon) + return false; + return true; + } + function sort(line) { + line.sort(sortComparator); + } + function sortComparator(a, b) { + return a[0] - b[0]; + } + function encode(decoded) { + const state = new Int32Array(5); + let buf = new Uint8Array(1024); + let pos = 0; + for (let i = 0; i < decoded.length; i++) { + const line = decoded[i]; + if (i > 0) { + buf = reserve(buf, pos, 1); + buf[pos++] = semicolon; + } + if (line.length === 0) + continue; + state[0] = 0; + for (let j = 0; j < line.length; j++) { + const segment = line[j]; + // We can push up to 5 ints, each int can take at most 7 chars, and we + // may push a comma. + buf = reserve(buf, pos, 36); + if (j > 0) + buf[pos++] = comma; + pos = encodeInteger(buf, pos, state, segment, 0); // generatedCodeColumn + if (segment.length === 1) + continue; + pos = encodeInteger(buf, pos, state, segment, 1); // sourceFileIndex + pos = encodeInteger(buf, pos, state, segment, 2); // sourceCodeLine + pos = encodeInteger(buf, pos, state, segment, 3); // sourceCodeColumn + if (segment.length === 4) + continue; + pos = encodeInteger(buf, pos, state, segment, 4); // nameIndex + } + } + return td.decode(buf.subarray(0, pos)); + } + function reserve(buf, pos, count) { + if (buf.length > pos + count) + return buf; + const swap = new Uint8Array(buf.length * 2); + swap.set(buf); + return swap; + } + function encodeInteger(buf, pos, state, segment, j) { + const next = segment[j]; + let num = next - state[j]; + state[j] = next; + num = num < 0 ? (-num << 1) | 1 : num << 1; + do { + let clamped = num & 0b011111; + num >>>= 5; + if (num > 0) + clamped |= 0b100000; + buf[pos++] = intToChar[clamped]; + } while (num > 0); + return pos; + } + + exports.decode = decode; + exports.encode = encode; + + Object.defineProperty(exports, '__esModule', { value: true }); + +})); +//# sourceMappingURL=sourcemap-codec.umd.js.map diff --git a/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js.map b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js.map new file mode 100644 index 0000000..fce7c4b --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.umd.js.map @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/node_modules/@jridgewell/sourcemap-codec/dist/types/sourcemap-codec.d.ts b/node_modules/@jridgewell/sourcemap-codec/dist/types/sourcemap-codec.d.ts new file mode 100644 index 0000000..6ac3c1d --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/dist/types/sourcemap-codec.d.ts @@ -0,0 +1,5 @@ +export declare type SourceMapSegment = [number] | [number, number, number, number] | [number, number, number, number, number]; +export declare type SourceMapLine = SourceMapSegment[]; +export declare type SourceMapMappings = SourceMapLine[]; +export declare function decode(mappings: string): SourceMapMappings; +export declare function encode(decoded: SourceMapMappings): string; diff --git a/node_modules/@jridgewell/sourcemap-codec/package.json b/node_modules/@jridgewell/sourcemap-codec/package.json new file mode 100644 index 0000000..0dc07c9 --- /dev/null +++ b/node_modules/@jridgewell/sourcemap-codec/package.json @@ -0,0 +1,69 @@ +{ + "name": "@jridgewell/sourcemap-codec", + "version": "1.4.11", + "description": "Encode/decode sourcemap mappings", + "keywords": [ + "sourcemap", + "vlq" + ], + "main": "dist/sourcemap-codec.umd.js", + "module": "dist/sourcemap-codec.mjs", + "typings": "dist/types/sourcemap-codec.d.ts", + "files": [ + "dist" + ], + "exports": { + ".": { + "browser": "./dist/sourcemap-codec.umd.js", + "import": "./dist/sourcemap-codec.mjs", + "require": "./dist/sourcemap-codec.umd.js" + }, + "./package.json": "./package.json" + }, + "scripts": { + "benchmark": "run-s build:rollup benchmark:only", + "benchmark:only": "node benchmark/index.js", + "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", + "pretest": "run-s build:rollup", + "test": "run-s -n test:lint test:only", + "test:debug": "mocha --inspect-brk", + "test:lint": "run-s -n test:lint:*", + "test:lint:prettier": "prettier --check '{src,test}/**/*.ts'", + "test:lint:ts": "eslint '{src,test}/**/*.ts'", + "test:only": "mocha", + "test:coverage": "c8 mocha", + "test:watch": "mocha --watch" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/jridgewell/sourcemap-codec.git" + }, + "author": "Rich Harris", + "license": "MIT", + "devDependencies": { + "@rollup/plugin-typescript": "8.3.0", + "@types/node": "17.0.15", + "@typescript-eslint/eslint-plugin": "5.10.0", + "@typescript-eslint/parser": "5.10.0", + "benchmark": "2.1.4", + "c8": "7.11.0", + "eslint": "8.7.0", + "eslint-config-prettier": "8.3.0", + "mocha": "9.2.0", + "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", + "sourcemap-codec": "1.4.8", + "typescript": "4.5.4" + } +} |