/
source-map.json
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/
source-map.json
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{
"version": 3,
"names": [
"createRequire",
"path",
"WatchOptions",
"FSWatcher",
"fileToDeps",
"Map",
"Set",
"depToFiles",
"isWatchMode",
"watcher",
"watchQueue",
"hasStarted",
"enable",
"enableGlobbing",
"requireChokidar",
"options",
"disableGlobbing",
"persistent",
"ignoreInitial",
"awaitWriteFinish",
"stabilityThreshold",
"pollInterval",
"on",
"unwatchFile",
"startWatcher",
"dep",
"add",
"clear",
"console",
"log",
"watch",
"filename",
"Error",
"resolve",
"onFilesChange",
"callback",
"filenames",
"event",
"cause",
"absoluteFile",
"get",
"updateExternalDependencies",
"dependencies",
"absFilename",
"absDependencies",
"Array",
"from",
"deps",
"has",
"removeFileDependency",
"set",
"delete",
"size",
"unwatch",
"require",
"import",
"meta",
"url",
"process",
"env",
"BABEL_8_BREAKING",
"parseInt",
"versions",
"node",
"err",
"error"
],
"sources": [
"fixtures/sourcemaps/real-world-babel-file1/input.ts"
],
"sourcesContent": [
"// From packages\\babel-cli\\src\\babel\\watcher.ts\n\nimport { createRequire } from \"module\";\nimport path from \"path\";\nimport type { WatchOptions, FSWatcher } from \"chokidar\";\n\nconst fileToDeps = new Map<string, Set<string>>();\nconst depToFiles = new Map<string, Set<string>>();\n\nlet isWatchMode = false;\nlet watcher: FSWatcher;\nconst watchQueue = new Set<string>();\nlet hasStarted = false;\n\nexport function enable({ enableGlobbing }: { enableGlobbing: boolean }) {\n isWatchMode = true;\n\n const { FSWatcher } = requireChokidar();\n\n const options: WatchOptions = {\n disableGlobbing: !enableGlobbing,\n persistent: true,\n ignoreInitial: true,\n awaitWriteFinish: {\n stabilityThreshold: 50,\n pollInterval: 10,\n },\n };\n watcher = new FSWatcher(options);\n\n watcher.on(\"unlink\", unwatchFile);\n}\n\nexport function startWatcher() {\n hasStarted = true;\n\n for (const dep of watchQueue) {\n watcher.add(dep);\n }\n watchQueue.clear();\n\n watcher.on(\"ready\", () => {\n console.log(\"The watcher is ready.\");\n });\n}\n\nexport function watch(filename: string): void {\n if (!isWatchMode) {\n throw new Error(\n \"Internal Babel error: .watch called when not in watch mode.\",\n );\n }\n\n if (!hasStarted) {\n watchQueue.add(path.resolve(filename));\n } else {\n watcher.add(path.resolve(filename));\n }\n}\n\n/**\n * Call @param callback whenever a dependency (source file)/\n * external dependency (non-source file) changes.\n *\n * Handles mapping external dependencies to their corresponding\n * dependencies.\n */\nexport function onFilesChange(\n callback: (filenames: string[], event: string, cause: string) => void,\n): void {\n if (!isWatchMode) {\n throw new Error(\n \"Internal Babel error: .onFilesChange called when not in watch mode.\",\n );\n }\n\n watcher.on(\"all\", (event, filename) => {\n if (event !== \"change\" && event !== \"add\") return;\n\n const absoluteFile = path.resolve(filename);\n callback(\n [absoluteFile, ...(depToFiles.get(absoluteFile) ?? [])],\n event,\n absoluteFile,\n );\n });\n}\n\nexport function updateExternalDependencies(\n filename: string,\n dependencies: Set<string>,\n) {\n if (!isWatchMode) return;\n\n // Use absolute paths\n const absFilename = path.resolve(filename);\n const absDependencies = new Set(\n Array.from(dependencies, dep => path.resolve(dep)),\n );\n\n const deps = fileToDeps.get(absFilename);\n if (deps) {\n for (const dep of deps) {\n if (!absDependencies.has(dep)) {\n removeFileDependency(absFilename, dep);\n }\n }\n }\n for (const dep of absDependencies) {\n let deps = depToFiles.get(dep);\n if (!deps) {\n depToFiles.set(dep, (deps = new Set()));\n\n if (!hasStarted) {\n watchQueue.add(dep);\n } else {\n watcher.add(dep);\n }\n }\n\n deps.add(absFilename);\n }\n\n fileToDeps.set(absFilename, absDependencies);\n}\n\nfunction removeFileDependency(filename: string, dep: string) {\n const deps = depToFiles.get(dep) as Set<string>;\n deps.delete(filename);\n\n if (deps.size === 0) {\n depToFiles.delete(dep);\n\n if (!hasStarted) {\n watchQueue.delete(dep);\n } else {\n watcher.unwatch(dep);\n }\n }\n}\n\nfunction unwatchFile(filename: string) {\n const deps = fileToDeps.get(filename);\n if (!deps) return;\n\n for (const dep of deps) {\n removeFileDependency(filename, dep);\n }\n fileToDeps.delete(filename);\n}\n\nfunction requireChokidar(): any {\n const require = createRequire(import.meta.url);\n\n try {\n return process.env.BABEL_8_BREAKING\n ? require(\"chokidar\")\n : parseInt(process.versions.node) >= 8\n ? require(\"chokidar\")\n : require(\"@nicolo-ribaudo/chokidar-2\");\n } catch (err) {\n console.error(\n \"The optional dependency chokidar failed to install and is required for \" +\n \"--watch. Chokidar is likely not supported on your platform.\",\n );\n throw err;\n }\n}"
],
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