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Rust Programming Language

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Mar 14, 2020

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Rust Programming Language

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struct Circle x: f64, y: f64, radius: f64, impl Circle fn reference(&self) fn mutable_reference(&mut self) fn takes_ ________________(self)

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struct Circle x: f64, y: f64, radius: f64, impl Circle fn reference(&self) fn mutable_reference(&mut self) fn takes_ ________________(self)

ownership

Mix and Match a lot of different ways to ______ things

match

impl CircleBuilder { fn ____() -> CircleBuilder CircleBuilder { x: 0.0, y: 0.0, radius: 1.0, fn x(&mut self, coordinate: f64) -> &mut CircleBuilder self.x = coordinate; self

new

Struct::function() syntax, rather than the ref.method() syntax. Some other languages call associated functions ' _______ methods'.

static

Method Syntax to call a bunch of

Functions

Concatenation: concatenate a &str to the end of it: let hello = "Hello ".to_string(); let world = "world!"; let hello_world = hello + world;

+

Trait __________ on generic functions. its behavior. to constrain, or bound

bounds

self if it's a value on the stack, &self if it's a reference, and &mut self if it's a mutable ___________ .

reference

Methods take a special first parameter, of which there are three variants: self, &self, &mut ____

self

Match

val => expression

Destructuring compound data type, like a struct, you can destructure it inside of a __________

pattern

Generics: multiple types of _______________.

arguments

Traits? functionality a type must _________.

provide

let greeting = "Hello there."; // greeting: &'static ____

str

growable, and is also guaranteed to be _____-_

UTF-8

ref and ref mut reference, use the ___ keyword:

ref

Multiple patterns multiple patterns with | x = 1; match x 1 | 2 => one or ____

two

Ranges match x 1 ... 5 => one ________ five _ => anything

through

Rust has two main types of strings: &str and ________.

String

Chaining method calls. call a method, such as foo.bar(). foo.bar().baz()? This is called 'method __________ '.

chaining

Note that you normally cannot access a str directly, but only through a &str reference. This is because str is an __________ type

unsized

Associated functions. do not take a self ______________ .

parameter

struct Rectangle<T> ? x: T y: T width: T height: T impl<T: PartialEq> Rectangle<T> fn is_square(&self) -> _______ self.width == self.height

bool

Strings strings are a __ _ ________ data structure.

re-sizable

Guards match guards with ___

if

baz(bar(foo)); left-to-right foo.bar().baz(); 'method call syntax via the ____ keyword.

impl

Last Arm

underscore _

Ignoring bindings match some_value Ok(value) => got a value: {} value Err(_) => an error occurred

underscore _

Trait bounds on generic structs? append the bound when you declare type ___________ . Here is a new type Rectangle<T> and its operation is_square():

parameters

Indexing. Because strings are valid UTF-8, they do not support : ___________

indexing

Builder Pattern. only set the properties Rust doesn't have method overloading, named arguments, or variable arguments. We employ the builder ___________ instead.

pattern