Julie  Scott

Julie Scott

1605429000

Crust of Rust: Smart Pointers and Interior Mutability

We also dive briefly into the Drop Check rabbit hole (https://doc.rust-lang.org/nightly/nom… ) before coming back up for air.

This is definitely a more technically advanced stream than some of the earlier ones, and may be a little harder to follow. I apologize for that in advance! Please do leave questions here or on Discord and I’ll try to help explain what’s going on.

You can find the final code at https://gist.github.com/jonhoo/7cfdfe…

0:00:00 Introduction
0:01:11 Discord
0:02:31 Agenda
0:03:50 Interior Mutability
0:07:47 Cell
0:23:39 Trying to Test Cell
0:40:17 UnsafeCell
0:41:21 RefCell
0:54:21 RefCell Smart Pointer
1:06:27 Rc (reference counted ptr)
1:23:49 NonNull
1:31:55 PhantomData and Drop Check
1:44:25 ?Sized Briefly
1:47:30 Thread Safety
1:54:20 Copy-on-Write (Cow)

☞ Crust of Rust: Lifetime Annotations
☞ Crust of Rust: Declarative Macros
☞ Crust of Rust: Iterators
☞ Crust of Rust: Smart Pointers and Interior Mutability
☞ Crust of Rust: Channels

#rust #programming

What is GEEK

Buddha Community

Crust of Rust: Smart Pointers and Interior Mutability

Serde Rust: Serialization Framework for Rust

Serde

*Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.*

You may be looking for:

Serde in action

Click to show Cargo.toml. Run this code in the playground.

[dependencies]

# The core APIs, including the Serialize and Deserialize traits. Always
# required when using Serde. The "derive" feature is only required when
# using #[derive(Serialize, Deserialize)] to make Serde work with structs
# and enums defined in your crate.
serde = { version = "1.0", features = ["derive"] }

# Each data format lives in its own crate; the sample code below uses JSON
# but you may be using a different one.
serde_json = "1.0"

 

use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize, Debug)]
struct Point {
    x: i32,
    y: i32,
}

fn main() {
    let point = Point { x: 1, y: 2 };

    // Convert the Point to a JSON string.
    let serialized = serde_json::to_string(&point).unwrap();

    // Prints serialized = {"x":1,"y":2}
    println!("serialized = {}", serialized);

    // Convert the JSON string back to a Point.
    let deserialized: Point = serde_json::from_str(&serialized).unwrap();

    // Prints deserialized = Point { x: 1, y: 2 }
    println!("deserialized = {:?}", deserialized);
}

Getting help

Serde is one of the most widely used Rust libraries so any place that Rustaceans congregate will be able to help you out. For chat, consider trying the #rust-questions or #rust-beginners channels of the unofficial community Discord (invite: https://discord.gg/rust-lang-community), the #rust-usage or #beginners channels of the official Rust Project Discord (invite: https://discord.gg/rust-lang), or the #general stream in Zulip. For asynchronous, consider the [rust] tag on StackOverflow, the /r/rust subreddit which has a pinned weekly easy questions post, or the Rust Discourse forum. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time.

Download Details:
Author: serde-rs
Source Code: https://github.com/serde-rs/serde
License: View license

#rust  #rustlang 

david harper

1610429951

Hire Smart Contract Developers | Smart Contract Development Company India

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Julie  Scott

Julie Scott

1605429000

Crust of Rust: Smart Pointers and Interior Mutability

We also dive briefly into the Drop Check rabbit hole (https://doc.rust-lang.org/nightly/nom… ) before coming back up for air.

This is definitely a more technically advanced stream than some of the earlier ones, and may be a little harder to follow. I apologize for that in advance! Please do leave questions here or on Discord and I’ll try to help explain what’s going on.

You can find the final code at https://gist.github.com/jonhoo/7cfdfe…

0:00:00 Introduction
0:01:11 Discord
0:02:31 Agenda
0:03:50 Interior Mutability
0:07:47 Cell
0:23:39 Trying to Test Cell
0:40:17 UnsafeCell
0:41:21 RefCell
0:54:21 RefCell Smart Pointer
1:06:27 Rc (reference counted ptr)
1:23:49 NonNull
1:31:55 PhantomData and Drop Check
1:44:25 ?Sized Briefly
1:47:30 Thread Safety
1:54:20 Copy-on-Write (Cow)

☞ Crust of Rust: Lifetime Annotations
☞ Crust of Rust: Declarative Macros
☞ Crust of Rust: Iterators
☞ Crust of Rust: Smart Pointers and Interior Mutability
☞ Crust of Rust: Channels

#rust #programming

Malvina  O'Hara

Malvina O'Hara

1593857220

Crust of Rust: Smart Pointers and Interior Mutability

In this fourth Crust of Rust video, we cover smart pointers and interior mutability, by re-implementing the Cell, RefCell, and Rc types from the standard library. As part of that, we cover when those types are useful, how they work, and what the equivalent thread-safe versions of these types are. In the process, we go over some of the finer details of Rust’s ownership model, and the UnsafeCell type. We also dive briefly into the Drop Check rabbit hole before coming back up for air.

This is definitely a more technically advanced stream than some of the earlier ones, and may be a little harder to follow. I apologize for that in advance! Please do leave questions here or on Discord and I’ll try to help explain what’s going on.

#rust

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