Rust Quick Start Guide by Arbuckle, Daniel -- Read -- Imperial Library of Trantor

Index

Title Page Copyright and Credits

Rust Quick Start Guide

About Packt

Why subscribe? Packt.com

Contributors

About the author About the reviewers Packt is searching for authors like you

Preface

Who this book is for What this book covers To get the most out of this book

Download the example code files Download the color images Conventions used

Get in touch

Reviews

Getting Ready

Installing Rust Starting a new project

Project metadata

Dependencies on libraries from crates.io Dependencies on Git repositories Dependencies on local libraries

Automatically generated source files

Compiling our project

Debug and release builds Dynamic libraries, software distribution, and Rust

Using crates.io Summary

Basics of the Rust Language

Functions

Defining a function

Modules

Defining a module

A module as a section of a file A module as a separate file

Accessing module contents from outside

Using the item's full name directly Using the item's short name Public and private module items

Expressions

Literal expressions Operator expressions Array and tuple expressions Block expressions Branch expressions Loop expressions

while loops for loops

Variables, types, and mutability

Type inference

Data structures

Mutability of data structures

More about functions

Parameters Return types Error handling

Using Result to signal success or failure Calling functions that return Result

Implementing behavior for types Summary

The Big Ideas – Ownership and Borrowing

Scope and ownership

The stack

Transferring ownership Copying Lending

Lending immutably Lending mutably

Accessing borrowed data The lifetime of borrowed data Ownership and the self parameter

Moving self Borrowing self Mutably borrowing self

Summary

Making Decisions by Pattern Matching

Variable assignment with pattern matching Using if let expressions to test whether a pattern matches Using match to choose one of several patterns Using don't care in patterns Moving and borrowing in pattern matches Matching tuples and other more complex patterns

Nested patterns Storing a matched value and comparing it to a pattern Ignoring most of a data structure

Gotchas

Not all values can be matched against a literal pattern Patterns assign values to variable names

Summary

One Data Type Representing Multiple Kinds of Data

Enumerations

Basic enumerations Parameterized enumerations Checking the value type and extracting parameter values Result is an enumeration, accessed via the prelude

Traits and trait objects

Traits

Implementing our PrintableDirection trait

Trait objects

Using our PrintableDirection trait Trait objects only provide access to the trait interface

Any

Any can store almost anything But to access it we have to already know about the real data type

Comparison of these techniques Summary

Heap Memory and Smart Pointers

Box

Box and variable size Box and Any

Vec and String

String Vec

Weak references

Cell and RefCell

Cell What's the point? RefCell

Arc Mutex and RwLock Summary

Generic Types

Types with generic type parameters Limiting what types can be used for type parameters Implementing functionality for types with generic type parameters Using generic types as function return values Compiler errors involving generic type parameters Generic types on functions outside of implementation blocks Alternative ways to write trait bounds Generic types versus trait objects Higher-order functions and trait bounds that represent functions Complete implementation of a binary tree with generic type parameters Summary

Important Standard Traits

Traits that can be derived

Clone Copy Debug PartialEq Eq PartialOrd Ord Hash Default

Traits that enable operators

Add, Mul, Sub, and Div AddAssign, MulAssign, SubAssign, and DivAssign BitAnd BitAndAssign BitOr BitOrAssign BitXor BitXorAssign Deref DerefMut Drop Index IndexMut Neg Not Rem and RemAssign Shl and ShlAssign Shr and ShrAssign

Traits that are implemented automatically

Sync Send Sized Fn FnMut FnOnce

Summary

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