Rust: personal reference

Keywords

Variable Bindings and Data Declaration

• let - Declare a variable
• const - Declare a compile-time constant
• static - Declare a static variable (global variable with a fixed memory location)
• mut - Mark a binding as mutable
• ref - Bind by reference

Type System

• type - Create a type alias
• struct - Define a structure/record type
• enum - Define an enumeration type
• trait - Define an interface type
• impl - Implement methods or traits
• dyn - Dynamic dispatch to a trait object
• Self - Type alias for the implementing type within a trait or - impl
• self - Method receiver or current module
• super - Parent module
• where - Add constraints to generic types

Control Flow

• if - Conditional branching
• else - Alternative branch in conditional
• match - Pattern matching
• loop - Infinite loop
• while - Conditional loop
• for - Iterator-based loop
• in - Part of for loop syntax and pattern matching
• break - Exit a loop early
• continue - Skip to the next loop iteration
• return - Return from a function

Functions and Closures

• fn - Define a function
• move - Force closure to take ownership of captured variables
• async - Define an asynchronous function or block
• await - Suspend execution until an async result is ready

Memory Management

• unsafe - Denote unsafe code block
• extern - Link to external functions or crates
• raw - Raw pointer operations (used with references)

Modules and Visibility

• mod - Define a module
• pub - Make an item public
• use - Import items from other modules
• crate - Reference the current crate or external crate
• as - Rename or alias in imports

Macros

• macro_rules! - Define a declarative macro

Type Operations

• as - Type casting
• _ - Wildcard pattern or type placeholder

Reserved for Future Use (No Functionality Yet)

• abstract
• become
• box
• do
• final
• macro
• override
• priv
• try
• typeof
• unsized
• virtual
• yield