July 2019
Intermediate to advanced
560 pages
14h 12m
English

The following list contains keywords that are reserved for current or future use by the Rust language. As such, they cannot be used as identifiers (except as raw identifiers as we’ll discuss in “Raw Identifiers” on page 497), including names of functions, variables, parameters, struct fields, modules, crates, constants, macros, static values, attributes, types, traits, or lifetimes.
The following keywords currently have the functionality described.
as perform primitive casting, disambiguate the specific trait containing an item, or rename items in use and extern crate statements
break exit a loop immediately ...