Решение на упр.04 задача 1 от Виктор Карталов
Към профила на Виктор Карталов
Резултати
- 2 точки от тестове
- 0 бонус точки
- 2 точки общо
- 2 успешни тест(а)
- 0 неуспешни тест(а)
Код
use std::fmt::{self, Debug};
#[derive(Debug, Clone)]
enum Spec {
SI,
IS,
KN,
I,
M,
}
#[derive(Debug, Clone)]
enum Title {
Assistant,
Doctor,
Professor,
}
trait ToJson {
fn to_json(&self) -> String;
}
#[derive(Debug, Clone)]
struct Student {
name: String,
age: u32,
spec: Spec,
}
impl Student {
fn new(name: String, age: u32, spec: Spec) -> Self {
Student { name, age, spec }
}
}
impl ToJson for Student {
fn to_json(&self) -> String {
format!(
"{{\"name\": \"{}\", \"age\": {}, \"spec\": \"{:?}\"}}",
self.name, self.age, self.spec
)
}
}
#[derive(Debug, Clone)]
struct Teacher {
name: String,
age: u32,
specs: Vec<Spec>,
title: Title,
}
impl Teacher {
fn new(name: String, age: u32, specs: Vec<Spec>, title: Title) -> Self {
Teacher {
name,
age,
specs,
title,
}
}
}
impl ToJson for Teacher {
fn to_json(&self) -> String {
let specs_json: Vec<String> = self.specs.iter()
.map(|s| format!("\"{:?}\"", s))
.collect();
format!(
"{{\"name\": \"{}\", \"age\": {}, \"spec\": [{}], \"title\": \"{:?}\"}}",
self.name,
self.age,
specs_json.join(", "),
self.title
)
}
}
#[derive(Debug)]
struct University<TeacherType> {
name: String,
students: Vec<Student>,
teachers: Vec<TeacherType>,
}
impl<TeacherType: ToJson + Debug> University<TeacherType> {
fn new(name: String, students: Vec<Student>, teachers: Vec<TeacherType>) -> Self {
University {
name,
students,
teachers,
}
}
}
impl<TeacherType: ToJson + Debug> ToJson for University<TeacherType> {
fn to_json(&self) -> String {
let students_json: Vec<String> = self.students.iter().map(|s| s.to_json()).collect();
let teachers_json: Vec<String> = self.teachers.iter().map(|t| t.to_json()).collect();
format!(
"{{\"name\":\"{}\",\"students\":[{}],\"teachers\":[{}]}}",
self.name,
students_json.join(", "),
teachers_json.join(", ")
)
}
}
Лог от изпълнението
Updating crates.io index
Locking 17 packages to latest compatible versions
Compiling proc-macro2 v1.0.103
Compiling quote v1.0.41
Compiling unicode-ident v1.0.22
Compiling futures-sink v0.3.31
Compiling futures-core v0.3.31
Compiling futures-channel v0.3.31
Compiling futures-task v0.3.31
Compiling syn v2.0.109
Compiling futures-io v0.3.31
Compiling pin-utils v0.1.0
Compiling memchr v2.7.6
Compiling slab v0.4.11
Compiling pin-project-lite v0.2.16
Compiling solution v0.1.0 (/tmp/d20251106-1757769-1f4bnv6/solution)
warning: unused import: `self`
--> src/lib.rs:1:16
|
1 | use std::fmt::{self, Debug};
| ^^^^
|
= note: `#[warn(unused_imports)]` on by default
warning: enum `Spec` is never used
--> src/lib.rs:4:6
|
4 | enum Spec {
| ^^^^
|
= note: `#[warn(dead_code)]` on by default
warning: enum `Title` is never used
--> src/lib.rs:13:6
|
13 | enum Title {
| ^^^^^
warning: trait `ToJson` is never used
--> src/lib.rs:19:7
|
19 | trait ToJson {
| ^^^^^^
warning: struct `Student` is never constructed
--> src/lib.rs:24:8
|
24 | struct Student {
| ^^^^^^^
warning: associated function `new` is never used
--> src/lib.rs:31:8
|
30 | impl Student {
| ------------ associated function in this implementation
31 | fn new(name: String, age: u32, spec: Spec) -> Self {
| ^^^
warning: struct `Teacher` is never constructed
--> src/lib.rs:46:8
|
46 | struct Teacher {
| ^^^^^^^
warning: associated function `new` is never used
--> src/lib.rs:54:8
|
53 | impl Teacher {
| ------------ associated function in this implementation
54 | fn new(name: String, age: u32, specs: Vec<Spec>, title: Title) -> Self {
| ^^^
warning: struct `University` is never constructed
--> src/lib.rs:80:8
|
80 | struct University<TeacherType> {
| ^^^^^^^^^^
warning: associated function `new` is never used
--> src/lib.rs:87:8
|
86 | impl<TeacherType: ToJson + Debug> University<TeacherType> {
| --------------------------------------------------------- associated function in this implementation
87 | fn new(name: String, students: Vec<Student>, teachers: Vec<TeacherType>) -> Self {
| ^^^
warning: `solution` (lib) generated 10 warnings (run `cargo fix --lib -p solution` to apply 1 suggestion)
Compiling futures-macro v0.3.31
Compiling futures-util v0.3.31
Compiling futures-executor v0.3.31
Compiling futures v0.3.31
warning: unused import: `self`
--> tests/../src/lib.rs:1:16
|
1 | use std::fmt::{self, Debug};
| ^^^^
|
= note: `#[warn(unused_imports)]` on by default
warning: variants `KN`, `I`, and `M` are never constructed
--> tests/../src/lib.rs:7:5
|
4 | enum Spec {
| ---- variants in this enum
...
7 | KN,
| ^^
8 | I,
| ^
9 | M,
| ^
|
= note: `Spec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
= note: `#[warn(dead_code)]` on by default
warning: variants `Assistant` and `Doctor` are never constructed
--> tests/../src/lib.rs:14:5
|
13 | enum Title {
| ----- variants in this enum
14 | Assistant,
| ^^^^^^^^^
15 | Doctor,
| ^^^^^^
|
= note: `Title` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
warning: `solution` (test "solution_test") generated 3 warnings (run `cargo fix --test "solution_test"` to apply 1 suggestion)
Finished `test` profile [unoptimized + debuginfo] target(s) in 8.21s
Running tests/solution_test.rs (target/debug/deps/solution_test-8c2c5f784503f204)
running 2 tests
test solution_test::test_basic2 ... ok
test solution_test::test_basic ... ok
test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s