The Drop
trait in Rust is used to run custom cleanup logic when a value goes out of scope. This is particularly useful for managing resources like files, network connections, or any other system resources that need to be explicitly released.
When a value that implements Drop
goes out of scope, the Rust runtime automatically calls the drop
method, allowing you to define custom behavior for resource cleanup.
In this challenge, you will implement a struct that represents a temporary file. The file should be automatically deleted when the struct is dropped, simulating the behavior of temporary files in real-world applications.
TempFile
struct with a method new
that takes a file name as input, it must accept both &str
and String
types.Drop
trait for TempFile
to delete the file automatically when the struct goes out of scope.If you're stuck, here are some hints to help you solve the challenge:
std::fs::File
to create a temporary file.std::env::temp_dir()
to get the path for temporary files.std::fs::remove_file
method can be used to delete files.PathBuf
struct is helpful for managing file paths.AsRef<str>
trait to allow flexible input types for the file name.Drop
trait for custom cleanup logic. use std::fs::File;use std::io;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated functionCreate TempFile struct with a method new that takes a file name as input, it must accept both &str and String types.// Implement the Drop trait for TempFile to delete the file automatically when the struct goes out of scope. pub fn new(filename:impl AsRef<str>)->io::Result<Self>{ let path = PathBuf::from(filename.as_ref());File::create(&path)?;Ok(TempFile{path}) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped // unimplemented!() if self.path.exists(){ let _=std::fs::remove_file(&self.path); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::fs::File;use std::io;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated functionCreate TempFile struct with a method new that takes a file name as input, it must accept both &str and String types.// Implement the Drop trait for TempFile to delete the file automatically when the struct goes out of scope. pub fn new(filename:impl AsRef<str>)->io::Result<Self>{ let path = PathBuf::from(filename.as_ref());File::create(&path)?;Ok(TempFile{path}) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped // unimplemented!() if self.path.exists(){ let _=std::fs::remove_file(&self.path); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<T>(file_name: T) -> Result<Self, std::io::Error> where T : AsRef<str> { let mut temp_path = std::env::temp_dir(); temp_path.push(file_name.as_ref()); let _ = std::fs::File::create(&temp_path)?; Ok(Self{path: temp_path}) } }impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped if self.path.exists(){ let _ = std::fs::remove_file(&self.path); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new<T: AsRef<str>>(filename: T) -> Result<Self, std::io::Error> { let mut temp_path = std::env::temp_dir(); temp_path.push(filename.as_ref()); let _ = std::fs::File::create(&temp_path)?; Ok(Self { path: temp_path }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;use std::fs::{File, remove_file};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(filename: &str) -> Result<Self, String> { let mut path = std::env::temp_dir(); path.push(&filename); match File::create(&path) { Ok(_) => Ok(TempFile { path }), Err(_) => Err("Failed to create temporary file".to_string()) } }}impl Drop for TempFile { fn drop(&mut self) { if self.path.exists() { remove_file(&self.path).unwrap(); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;use std::fs::File;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(path : impl AsRef<str>) -> Result<Self, std::io::Error> { let file = TempFile{path: path.as_ref().into()}; File::create(&file.path)?; Ok(file) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;use std::fs::{File, remove_file};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(path: &str) -> Result<TempFile, std::io::Error> { let file = TempFile{path: path.into()}; File::create(&file.path)?; Ok(file) }}impl Drop for TempFile { fn drop(&mut self) { let _ = remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{fs, path::PathBuf};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(file_path: impl AsRef<str>) -> Result<Self, String> { let mut path = std::env::temp_dir(); path.push(file_path.as_ref()); match fs::File::create(&path) { Ok(_) => Ok(TempFile { path }), Err(_) => Err("Failed to create temporary file".to_string()), } }}impl Drop for TempFile { fn drop(&mut self) { if self.path.exists() { fs::remove_file(&self.path).unwrap(); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;use std::fs::File;use std::io::Error;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(path: &str) -> Result<TempFile, Error> { // 2. Create a new temporary file with the given name let mut _file = File::create(path)?; Ok(TempFile { path: PathBuf::from(path), }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ignored = std::fs::remove_file(&self.path); // ignore errors, we're just trying to clean up here }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(filename: &str) -> Result<Self, std::io::Error> { let mut path = std::env::temp_dir(); path.push(filename); std::fs::File::create(&path)?; Ok(Self { path }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{ env::temp_dir, fs::{remove_file, File}, io::Error, path::{Path, PathBuf},};pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new<T: AsRef<Path>>(file_name: T) -> Result<TempFile, Error> { let mut path = temp_dir(); path.push(file_name); File::create(&path)?; Ok(TempFile { path }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = remove_file(self.path.clone()); }}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(path: impl AsRef<str>) -> std::io::Result<Self> { let path_buf = PathBuf::from(path.as_ref()); std::fs::File::create(path.as_ref())?; Ok(Self { path: path_buf }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{path::PathBuf, str::FromStr};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(p: impl AsRef<str>) -> std::io::Result<Self> { let p = PathBuf::from_str(p.as_ref()).unwrap(); std::fs::File::create(&p)?; Ok(Self { path: p }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{fs, path::PathBuf};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(file_path: impl AsRef<str>) -> Result<Self, String> { let mut path = std::env::temp_dir(); path.push(file_path.as_ref()); match fs::File::create(&path) { Ok(_) => Ok(TempFile { path }), Err(_) => Err("Failed to create temporary file".to_string()), } }}impl Drop for TempFile { fn drop(&mut self) { if self.path.exists() { fs::remove_file(&self.path).unwrap(); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::fs::{remove_file, File};use std::env::temp_dir;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<S>(file_name: S) -> Result<Self, std::io::Error> where S: AsRef<str> { let mut path = PathBuf::new(); let td = temp_dir(); path.push(td); path.push(file_name.as_ref()); File::create(&path)?; Ok(Self { path }) } }impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;use std::fs::File;use std::io::Error;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<T: AsRef<str>>(name: T) -> Result<Self, Error> { let mut path = PathBuf::new(); path.push(std::env::temp_dir()); path.push(name.as_ref()); File::create(&path)?; Ok(TempFile{path}) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _=std::fs::remove_file(self.path.to_str().unwrap()); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new<T>(file_path: T) -> Result<Self, std::io::Error> where T: AsRef<str>, { let mut temp_path = std::env::temp_dir(); temp_path.push(file_path.as_ref()); std::fs::File::create(&temp_path)?; Ok(TempFile { path: temp_path }) }}impl Drop for TempFile { fn drop(&mut self) { if let Err(e) = std::fs::remove_file(&self.path) { eprintln!("Error deleting file: {}", e); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::fs::OpenOptions;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new(path: impl AsRef<str>) -> Result<TempFile, std::io::Error> { let file_name = std::env::temp_dir().join(path.as_ref()); let _file = OpenOptions::new() .write(true) .read(true) .create(true) .open(&file_name)?; Ok(TempFile { path: file_name }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(path: &str) -> Result<TempFile, std::io::Error> { let full_path = std::env::temp_dir().join(std::path::Path::new(path)); std::fs::File::create(&full_path)?; Ok(TempFile { path: full_path }) } // 1. Define the `new` associated function}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(path: impl AsRef<str>) -> Result<Self, std::io::Error> { let temp_path = std::env::temp_dir().join(path.as_ref()); let _file = std::fs::File::create(&temp_path)?; Ok(TempFile { path: temp_path }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(s: &str) -> Result<Self, std::io::Error> { let mut path = std::env::temp_dir(); path.push(s); std::fs::File::create(&path)?; Ok(TempFile { path }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(target: &str) -> Result<Self, std::io::Error> { let mut path = std::env::temp_dir(); path.push(target); std::fs::File::create(&path)?; Ok(Self { path }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new(file_path: &str) -> Result<Self, std::io::Error> { let mut path = std::env::temp_dir(); path.push(file_path); let _ = std::fs::File::create(&path)?; Ok(Self { path }) }}impl Drop for TempFile { fn drop(&mut self) { let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::env;use std::fs;use std::io;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new<T: AsRef<str>>(file_name: T) -> Result<TempFile, io::Error> { let mut path = PathBuf::new(); path.push(env::temp_dir()); path.push(file_name.as_ref()); fs::File::create(&path)?; Ok(TempFile { path }) }}impl Drop for TempFile { fn drop(&mut self) { if let Err(e) = fs::remove_file(&self.path) { eprintln!("Failed to delete temporary file: {}", e); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{fs::File, path::PathBuf};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<T: AsRef<str>>(filename: T) -> Result<TempFile, std::io::Error> { let mut path = std::env::temp_dir(); let filename = PathBuf::from(filename.as_ref()); path.push(filename); File::create(&path)?; Ok(TempFile{ path }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{fs::File, path::PathBuf};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<T: AsRef<str>>(filename: T) -> Result<TempFile, std::io::Error> { let mut path = std::env::temp_dir(); let filename = PathBuf::from(filename.as_ref()); path.push(filename); File::create(&path)?; Ok(TempFile{ path }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = std::fs::remove_file(&self.path); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{ error::Error, fs::{self, File}, path::PathBuf, str::FromStr,};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<T: AsRef<str>>(path: T) -> Result<Self, Box<dyn Error>> { File::create(path.as_ref())?; Ok(Self { path: PathBuf::from_str(path.as_ref())?, }) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped let _ = fs::remove_file(self.path.as_path()); }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::{fs::{self, File}, io, path::PathBuf};pub struct TempFile { pub path: PathBuf,}impl TempFile { // 1. Define the `new` associated function pub fn new<S: AsRef<str>>(file_path: S) -> Result<Self, io::Error> { File::create(file_path.as_ref())?; Ok( Self { path: PathBuf::from(file_path.as_ref()) } ) }}impl Drop for TempFile { fn drop(&mut self) { // Your code here to delete the file when TempFile is dropped if let Err(e) = fs::remove_file(&self.path) { eprintln!("Failed to delete temporary file: {}", e); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}
use std::fs::{self, File};use std::io;use std::path::PathBuf;pub struct TempFile { pub path: PathBuf,}impl TempFile { pub fn new<S: AsRef<str>>(file_path: S) -> Result<Self, io::Error> { File::create(file_path.as_ref())?; Ok(TempFile { path: PathBuf::from(file_path.as_ref()), }) }}impl Drop for TempFile { fn drop(&mut self) { if let Err(e) = fs::remove_file(&self.path) { eprintln!("Failed to delete temporary file: {}", e); } }}// Example usagepub fn main() { let file_path = PathBuf::from("example_temp_file.tmp"); let tempfile = TempFile::new(file_path.to_str().unwrap()).expect("Failed to create temporary file"); assert!(tempfile.path.exists(), "File does not exist"); drop(tempfile); assert!(!file_path.exists(), "File was not deleted"); let tempfile_2 = TempFile::new(&String::from("example_temp_file_2.tmp")) .expect("Failed to create temporary file"); drop(tempfile_2);}