rust for rustaceans (what I learned)

gistfile1.txt

Rust for rustaceans

Ch 1
Uses of multiple lifetime bounds within a single function or type eg a string split iterator

Ch 2
Use trait associated types rather than trait genetics except if you expect multiple implementations of the trait for a given type

You can use impl trait as the value for an associated type and the compiler will infer the specific type from use eg the return from IntoIterator::into_iter()

fn foo(x: impl Whatever) is short for <T: whatever> … I haven’t seen this. Is it a convention that people prefer not to use??

Ch 3
Have Error types smaller than the Result::Ok so use a Box if necessary

Ch 6
“Not all compiler warnings are enabled by default. Those disabled by default are usu-
ally still being refined, or are more about style than content. A good example of this is
the "idiomatic Rust 2018 edition" lint, which you can enable with #!(warn(zust 2018
idioms)]. When this lint is enabled, the compiler will tell you if you're failing to take
advantage of changes brought by the Rust 2018 edition. Some other lints that you may
want to get into the habit of enabling when you start a new project are missing does
and missing_debug_implementations, which warn you if you've forgotten to document
any bublic items in your crate or add Debug implementations for any public types,
respectively.”

Ch 7
#[macro_export] on a macro hoists it to the root of the crate. Should we put this on usdt macros?

Crate phf for perfect hashing

Ch 8
RawWakerVTable to make a futures Waker

Ch 9
dropck_eyepatch

Ch 13
Cargo-outdated