René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Invalid output for static private fields","articleBody":"It appears references to already-initialized private static members can get lifted out of the lexical scope where their names exist.\r\n\r\n\u003cdetails open>\r\n\u003csummary>Input\u003c/summary>\r\n\r\n```js\r\nexport class Foo {\r\n  static #bar = 1;\r\n\r\n  static baz = Foo.#bar;\r\n}\r\n```\r\n\r\n\u003cdl>\r\n  \u003cdt>version\u003c/dt>\r\n  \u003cdd>0.11.6\u003c/dd>\r\n  \u003cdt>minify\u003c/dt>\r\n  \u003cdd>false\u003c/dd>\r\n  \u003cdt>format\u003c/dt>\r\n  \u003cdd>esm\u003c/dd>\r\n  \u003cdt>target\u003c/dt>\r\n  \u003cdd>none / esnext / maybe others do it too\u003c/dd>\r\n\u003c/dl>\r\n\r\n\u003c/details>\r\n\r\n\u003cdetails open>\r\n\u003csummary>Output\u003c/summary>\r\n\r\n```js\r\nvar __defProp = Object.defineProperty;\r\nvar __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, {enumerable: true, configurable: true, writable: true, value}) : obj[key] = value;\r\nvar __publicField = (obj, key, value) => {\r\n  __defNormalProp(obj, typeof key !== \"symbol\" ? key + \"\" : key, value);\r\n  return value;\r\n};\r\n\r\nvar _Foo = class {\r\n  static #bar;\r\n};\r\nvar Foo = _Foo;\r\nFoo.#bar = 1;\r\n__publicField(Foo, \"baz\", _Foo.#bar);\r\nexport {\r\n  Foo\r\n};\r\n```\r\n\r\n\u003c/details>\r\n\r\nThe condition for this seems to be the presence of a reference to `Foo` (or `this`) in a static initializer (which may or may not be private). I think it’s the same set of scenarios where it’s altering the value of `Foo.name`.","author":{"url":"https://github.com/bathos","@type":"Person","name":"bathos"},"datePublished":"2021-04-09T15:20:42Z","url":"https://github.com/evanw/esbuild/issues/1131"}