Compiler explorer (godbolt.org) is broken again

[dinosaur]

Greetings,

Compiler explorer is broken and displays a blank page; it did work for a while, after a first breakage and thanks to PM's JS engine updates, but broke again a couple months ago.

The error reported in the Developer Tools Web Console is:

Code: Select all

Error: ReferenceError: WeakRef is not defined
Source File: https://static.ce-cdn.net/vendor.v42.7b1dac2b8162df8eff66.js
Line: 2

[Moonchild]

Yeah they keep breaking it every time we fix it.

As for WeakRef - it's a strongly discouraged spec; nobody should use it. We do have an open issue to put in a stub for it so these kinds of sites stop breaking on it, but we haven't gotten around to that yet.

Avoid where possible

Correct use of WeakRef takes careful thought, and it's best avoided if possible. It's also important to avoid relying on any specific behaviors not guaranteed by the specification. When, how, and whether garbage collection occurs is down to the implementation of any given JavaScript engine. Any behavior you observe in one engine may be different in another engine, in another version of the same engine, or even in a slightly different situation with the same version of the same engine. Garbage collection is a hard problem that JavaScript engine implementers are constantly refining and improving their solutions to.