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structs

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This commit is contained in:
Andrew Kushyk 2024-04-24 07:29:55 +00:00
parent 7b8f60a646
commit 0ce9697e9f
3 changed files with 28 additions and 13 deletions
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17
exercises/07_structs/structs1.rs
View File

@ -5,13 +5,14 @@
// Execute `rustlings hint structs1` or use the `hint` watch subcommand for a // Execute `rustlings hint structs1` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
struct ColorClassicStruct { struct ColorClassicStruct {
// TODO: Something goes here red: u8,
green: u8,
blue: u8,
} }
struct ColorTupleStruct(/* TODO: Something goes here */); struct ColorTupleStruct(u8, u8, u8);
#[derive(Debug)] #[derive(Debug)]
struct UnitLikeStruct; struct UnitLikeStruct;
@ -23,7 +24,11 @@ mod tests {
#[test] #[test]
fn classic_c_structs() { fn classic_c_structs() {
// TODO: Instantiate a classic c struct! // TODO: Instantiate a classic c struct!
// let green = let green = ColorClassicStruct {
red: 0,
green: 255,
blue: 0,
};
assert_eq!(green.red, 0); assert_eq!(green.red, 0);
assert_eq!(green.green, 255); assert_eq!(green.green, 255);
@ -33,7 +38,7 @@ mod tests {
#[test] #[test]
fn tuple_structs() { fn tuple_structs() {
// TODO: Instantiate a tuple struct! // TODO: Instantiate a tuple struct!
// let green = let green = ColorTupleStruct(0, 255, 0);
assert_eq!(green.0, 0); assert_eq!(green.0, 0);
assert_eq!(green.1, 255); assert_eq!(green.1, 255);
@ -43,7 +48,7 @@ mod tests {
#[test] #[test]
fn unit_structs() { fn unit_structs() {
// TODO: Instantiate a unit-like struct! // TODO: Instantiate a unit-like struct!
// let unit_like_struct = let unit_like_struct = UnitLikeStruct;
let message = format!("{:?}s are fun!", unit_like_struct); let message = format!("{:?}s are fun!", unit_like_struct);
assert_eq!(message, "UnitLikeStructs are fun!"); assert_eq!(message, "UnitLikeStructs are fun!");

11
exercises/07_structs/structs2.rs
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@ -5,7 +5,6 @@
// Execute `rustlings hint structs2` or use the `hint` watch subcommand for a // Execute `rustlings hint structs2` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
#[derive(Debug)] #[derive(Debug)]
struct Order { struct Order {
@ -38,7 +37,15 @@ mod tests {
fn your_order() { fn your_order() {
let order_template = create_order_template(); let order_template = create_order_template();
// TODO: Create your own order using the update syntax and template above! // TODO: Create your own order using the update syntax and template above!
// let your_order = let your_order = Order {
name: "Hacker in Rust".to_string(),
year: order_template.year,
made_by_phone: order_template.made_by_phone,
made_by_mobile: order_template.made_by_mobile,
made_by_email: order_template.made_by_email,
item_number: order_template.item_number,
count: 1,
};
assert_eq!(your_order.name, "Hacker in Rust"); assert_eq!(your_order.name, "Hacker in Rust");
assert_eq!(your_order.year, order_template.year); assert_eq!(your_order.year, order_template.year);
assert_eq!(your_order.made_by_phone, order_template.made_by_phone); assert_eq!(your_order.made_by_phone, order_template.made_by_phone);

13
exercises/07_structs/structs3.rs
View File

@ -7,7 +7,6 @@
// Execute `rustlings hint structs3` or use the `hint` watch subcommand for a // Execute `rustlings hint structs3` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
#[derive(Debug)] #[derive(Debug)]
struct Package { struct Package {
@ -31,12 +30,16 @@ impl Package {
} }
} }
fn is_international(&self) -> ??? { fn is_international(&self) -> bool {
// Something goes here... if self.sender_country == self.recipient_country {
return false;
}
true
} }
fn get_fees(&self, cents_per_gram: u32) -> ??? { fn get_fees(&self, cents_per_gram: u32) -> u32 {
// Something goes here... self.weight_in_grams * cents_per_gram
} }
} }