源映射缓存

🌐 Source map cache

如果找到,源映射数据会被添加到 JSON 覆盖对象的顶层键 source-map-cache 中。

🌐 If found, source map data is appended to the top-level key source-map-cache on the JSON coverage object.

source-map-cache 是一个对象,其键表示提取源映射的文件,值包括原始的源映射 URL(在键 url 中)、解析后的 Source Map v3 信息(在键 data 中)以及源文件的行长度(在键 lineLengths 中)。

{
 "result": [
 {
 "scriptId": "68",
 "url": "file:///absolute/path/to/source.js",
 "functions": []
 }
 ],
 "source-map-cache": {
 "file:///absolute/path/to/source.js": {
 "url": "./path-to-map.json",
 "data": {
 "version": 3,
 "sources": [
 "file:///absolute/path/to/original.js"
 ],
 "names": [
 "Foo",
 "console",
 "info"
 ],
 "mappings": "MAAMA,IACJC,YAAaC",
 "sourceRoot": "./"
 },
 "lineLengths": [
 13,
 62,
 38,
 27
 ]
 }
 }
} 拷贝