The elves huddled in the workshop, their chatter buzzing with excitement.
"Have you seen the new ChatGPT model that just launched?" one elf asked, adjusting their tiny glasses.
"I did! But did you hear? It costs $200 a month!" another replied, shaking their head in disbelief.
“Two hundred dollars? That’s a fortune!” chimed in a third, tossing a tinsel garland into a storage box.
The discussion heated up as they debated whether the advanced features were worth the hefty price tag, but their conversation was abruptly interrupted by a booming voice.
“I can’t deref my snowballs! What’s going on?” Santa’s frustrated shout echoed through the workshop.
The elves froze mid-conversation, their heads snapping toward the jolly old man standing by his snowball workstation. He wore an expression of pure consternation as he jabbed a finger at the terminal screen displaying a stream of cryptic error messages.
One of the more tech-savvy elves hesitantly stepped forward. “Santa, you can just use snowball.0
to access the first value in the tuple.”
Santa’s frown deepened, and he waved a hand dismissively. “Nonsense! I need to deref all the structs. Every single one!”
The elves weren’t sure what Santa was coding, but they knew better than to argue with him when he was in debugging mode. Scrambling into action, they began reviewing his codebase, determined to find a solution before the big man lost his holiday cheer.
The code you wrote yesterday is a good start, but Santa needs easy access to the struct fields, instead of accessing them like this snowball.0
, he wants to access them like this *snowball
.
Here is what you need to do:
Deref
for SnowKg
.Deref
for SnowLb
.Deref
for Snowball
.If you’re stuck or need a starting point, here are some hints to help you along the way!
Import the Deref
trait from the std::ops
module: use std::ops::Deref;
.
Implement the Deref
trait for SnowKg
, SnowLb
, and Snowball
. e.g., impl Deref for SnowKg { ... }
.
Define the associated type Target
as the type of the inner value of the tuple struct. e.g.
type Target = f64;
Implement the deref
method for each struct. e.g.
fn deref(&self) -> &Self::Target {
&self.0
}
const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`use std::ops::Deref;impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg{ type Target = (f64); fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb{ type Target = (f64); fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball{ type Target = (i64); fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { fn deref(&self) -> &Self::Target { &self.0 } type Target = f64;}impl Deref for SnowLb { fn deref(&self) -> &Self::Target { &self.0 } type Target = f64;}impl Deref for Snowball { fn deref(&self) -> &Self::Target { &self.0 } type Target = i64;}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}fn main() {}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { return &self.0 }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { return &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { return &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;use std::ops::Deref;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }} pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}fn main() {}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// end comment line 1// end comment line 2
const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;use std::ops::Deref;pub struct SnowKg(pub f64);impl Deref for SnowKg{ type Target = f64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl Deref for SnowLb{ type Target = f64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Deref for Snowball{ type Target = i64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg{ type Target = f64; fn deref (&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb{ type Target = f64; fn deref (&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball{ type Target = i64; fn deref (&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &f64 { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &i64 { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &<Self as Deref>::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}use std::ops::Deref;// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref; const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 } }impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 } }impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 } }
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &f64 { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &f64 { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &i64 { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref (&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref (&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref (&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &f64 { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &f64 { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &i64 { &self.0 }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);pub struct Snowball(pub i64);pub struct SnowLb(pub f64);// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl SnowKg { pub fn new(value: f64) -> Self { SnowKg(value) }}impl SnowLb { pub fn new(value: f64) -> Self { SnowLb(value) }}impl Snowball { pub fn new(value: i64) -> Self { Snowball(value) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;use std::ops::Deref;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self)-> &Self::Target { &self.0 }}impl Deref for SnowLb { type Target = f64; fn deref(&self)-> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}// 2. Implement the `Deref` trait for `SnowLb`impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}// 3. Implement the `Deref` trait for `Snowball`impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}
use std::ops::Deref;const SNOWBALL_WEIGHT_KG: f64 = 0.2;const SNOWBALL_WEIGHT_LB: f64 = 0.441;pub struct SnowKg(pub f64);impl SnowKg { pub fn new(kg: f64) -> Self { SnowKg(kg) }}// 1. Implement the `Deref` trait for `SnowKg`impl Deref for SnowKg { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}// 2. Implement the `Deref` trait for `SnowLb`// 3. Implement the `Deref` trait for `Snowball`pub struct SnowLb(pub f64);impl SnowLb { pub fn new(lb: f64) -> Self { SnowLb(lb) }}impl Deref for SnowLb { type Target = f64; fn deref(&self) -> &Self::Target { &self.0 }}pub struct Snowball(pub i64);impl Snowball { pub fn new(snowballs: i64) -> Self { Snowball(snowballs) }}impl Deref for Snowball { type Target = i64; fn deref(&self) -> &Self::Target { &self.0 }}impl From<SnowKg> for Snowball { fn from(kg: SnowKg) -> Self { let snowballs = (*kg / SNOWBALL_WEIGHT_KG).round() as i64; Snowball(snowballs) }}impl From<SnowLb> for Snowball { fn from(lb: SnowLb) -> Self { let snowballs = (*lb / SNOWBALL_WEIGHT_LB).round() as i64; Snowball(snowballs) }}