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fc2a42cc49
During code review and discussion with Chelsea Komlo, she pointed out that protover::compute_for_old_tor() was a public function whose return type was `&'static CStr`. We both agree that C-like parts of APIs should: 1. not be exposed publicly (to other Rust crates), 2. only be called in the appropriate FFI code, 3. not expose types which are meant for FFI code (e.g. `*mut char`, `CString`, `*const c_int`, etc.) to the pure-Rust code of other crates. 4. FFI code (e.g. things in `ffi.rs` modules) should _never_ be called from pure-Rust, not even from other modules in its own crate (i.e. do not call `protover::ffi::*` from anywhere in `protover::protoset::*`, etc). With that in mind, this commit makes the following changes: * CHANGE `protover::compute_for_old_tor()` to be visible only at the `pub(crate)` level. * RENAME `protover::compute_for_old_tor()` to `protover::compute_for_old_tor_cstr()` to reflect the last change. * ADD a new `protover::compute_for_old_tor()` function wrapper which is public and intended for other Rust code to use, which returns a `&str`. |
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