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update:update the structs

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This commit is contained in:
catwithtudou 2023-06-19 23:56:07 +08:00
parent 441b1fb236
commit 1807ba8439
3 changed files with 24 additions and 20 deletions
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21
exercises/structs/structs1.rs
View File

@ -5,13 +5,13 @@
// 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: i64,
green: i64,
blue: i64,
} }
struct ColorTupleStruct(/* TODO: Something goes here */); struct ColorTupleStruct(i64, i64, i64);
#[derive(Debug)] #[derive(Debug)]
struct UnitLikeStruct; struct UnitLikeStruct;
@ -22,8 +22,11 @@ mod tests {
#[test] #[test]
fn classic_c_structs() { fn classic_c_structs() {
// TODO: Instantiate a classic c struct! let green = ColorClassicStruct {
// let green = 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);
@ -32,8 +35,7 @@ mod tests {
#[test] #[test]
fn tuple_structs() { fn tuple_structs() {
// TODO: Instantiate a tuple struct! let green = ColorTupleStruct(0, 255, 0);
// let green =
assert_eq!(green.0, 0); assert_eq!(green.0, 0);
assert_eq!(green.1, 255); assert_eq!(green.1, 255);
@ -42,8 +44,7 @@ mod tests {
#[test] #[test]
fn unit_structs() { fn unit_structs() {
// TODO: Instantiate a unit-like struct! let unit_like_struct = UnitLikeStruct {};
// let unit_like_struct =
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!");

9
exercises/structs/structs2.rs
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@ -5,8 +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 {
name: String, name: String,
@ -37,8 +35,11 @@ mod tests {
#[test] #[test]
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! let your_order = Order {
// let your_order = name: String::from("Hacker in Rust"),
count: 1,
..order_template
};
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);

14
exercises/structs/structs3.rs
View File

@ -7,8 +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 {
sender_country: String, sender_country: String,
@ -29,12 +27,16 @@ impl Package {
} }
} }
fn is_international(&self) -> ??? { fn is_international(&self) -> bool {
// Something goes here... if self.recipient_country == self.sender_country {
false
} else {
true
}
} }
fn get_fees(&self, cents_per_gram: i32) -> ??? { fn get_fees(&self, cents_per_gram: i32) -> i32 {
// Something goes here... self.weight_in_grams * cents_per_gram
} }
} }