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Introduction
1.
Notation
2.
Lexical structure
2.1.
Input format
2.2.
Keywords
2.3.
Identifiers
2.4.
Comments
2.5.
Whitespace
2.6.
Tokens
2.7.
Paths
3.
Macros
3.1.
Macros By Example
3.2.
Procedural Macros
4.
Crates and source files
5.
Conditional compilation
6.
Items
6.1.
Modules
6.2.
Extern crates
6.3.
Use declarations
6.4.
Functions
6.5.
Type aliases
6.6.
Structs
6.7.
Enumerations
6.8.
Unions
6.9.
Constant items
6.10.
Static items
6.11.
Traits
6.12.
Implementations
6.13.
External blocks
6.14.
Type and lifetime parameters
6.15.
Associated Items
6.16.
Visibility and Privacy
7.
Attributes
7.1.
Testing
7.2.
Derive
7.3.
Diagnostics
7.4.
Code generation
7.5.
Limits
7.6.
Type System
8.
Statements and expressions
8.1.
Statements
8.2.
Expressions
8.2.1.
Literal expressions
8.2.2.
Path expressions
8.2.3.
Block expressions
8.2.4.
Operator expressions
8.2.5.
Grouped expressions
8.2.6.
Array and index expressions
8.2.7.
Tuple and index expressions
8.2.8.
Struct expressions
8.2.9.
Enum variant expressions
8.2.10.
Call expressions
8.2.11.
Method call expressions
8.2.12.
Field access expressions
8.2.13.
Closure expressions
8.2.14.
Loop expressions
8.2.15.
Range expressions
8.2.16.
If and if let expressions
8.2.17.
Match expressions
8.2.18.
Return expressions
8.2.19.
Await expressions
9.
Patterns
10.
Type system
10.1.
Types
10.1.1.
Boolean type
10.1.2.
Numeric types
10.1.3.
Textual types
10.1.4.
Never type
10.1.5.
Tuple types
10.1.6.
Array types
10.1.7.
Slice types
10.1.8.
Struct types
10.1.9.
Enumerated types
10.1.10.
Union types
10.1.11.
Function item types
10.1.12.
Closure types
10.1.13.
Pointer types
10.1.14.
Function pointer types
10.1.15.
Trait object types
10.1.16.
Impl trait type
10.1.17.
Type parameters
10.1.18.
Inferred type
10.2.
Dynamically Sized Types
10.3.
Type layout
10.4.
Interior mutability
10.5.
Subtyping and Variance
10.6.
Trait and lifetime bounds
10.7.
Type coercions
10.8.
Destructors
10.9.
Lifetime elision
11.
Special types and traits
12.
Memory model
12.1.
Memory allocation and lifetime
12.2.
Memory ownership
12.3.
Variables
13.
Linkage
14.
Unsafety
14.1.
Unsafe functions
14.2.
Unsafe blocks
14.3.
Behavior considered undefined
14.4.
Behavior not considered unsafe
15.
Constant Evaluation
16.
Application Binary Interface
17.
The Rust runtime
18.
Appendices
18.1.
Macro Follow-Set Ambiguity Formal Specification
18.2.
Influences
18.3.
Glossary
Light (default)
Rust
Coal
Navy
Ayu
The Rust Reference
Input format
Rust input is interpreted as a sequence of Unicode code points encoded in UTF-8.
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