warning: panic message is not a string literal
--> src/bin/event_leak.rs:9:30
|
9 | Err(e) => panic!(format!(" could not create handle {:?}", e)),
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(non_fmt_panic)]` on by default
= note: this is no longer accepted in Rust 2021
= note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
This patch includes:
- Event callback handlers
- Tests related to events(410-430)
src/bin/event.rs and src/bin/event_leak.rs
are the PoCs that Boxes related to callbacks are
not leaked.
Without clarifying handle's lifetime, it is unable
to see how long the callbacks which the handle
owns will live. Then, Rust compiler will infer
that the callbacks have 'static lifetime. It is
not convenient for users.
