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Animats 2 hours ago

Yes. There isn't Rust language support for this.

Order of initialization can be supported at various levels:

- Completely random (OK if interdependence are locked out, otherwise bad)

- Consistent, but sorted by something such as alphabetical name (meh.)

- Manual, controlled in linker scripts (headache)

- True dependency tree order, including diagnosing loops (seen in the Modula family).

General comment: yes, you can, and you probably shouldn't unless you have profiling data that indicates a significant performance improvement for a critical use case.

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ameliaquining an hour ago | parent [-]

I think these things are used more for developer experience than for performance, since you can always just do the initialization in main if you really have to.

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Animats an hour ago | parent [-]

It's something of an issue if you have some crate that needs to set itself up at load time without a call from main. But those are very rare. Even "simplelog" needs a call at startup to do anything.

	▲	ameliaquining an hour ago \| parent [-]
		Yeah, I think of avoiding the call from main as a devex consideration rather than a performance one, since either way the initialization code runs once at process startup.