We now have an overview of traits, how to define them and how they work, now it's time to put that knowledge to use and build a plugin system using traits.
A plugin in this system is any type that implements a specific trait. Each plugin will perform a specific task, and the system should manage a collection of these plugins, executing them in sequence. You’ll also address advanced issues like object safety and resolving potential conflicts between overlapping trait implementations.
Design and implement a plugin system using trait objects. You will:
Plugin
trait that includes methods for initialization and execution.PluginManager
struct to manage plugins. It should:
Plugin
trait.Plugin
trait should include the following methods:
fn name(&self) -> &str;
- Returns the name of the plugin.fn execute(&self);
- Executes the plugin's functionality.PluginManager
should:
new() -> Self
- Creates a new PluginManager
instance.add_plugin
- Adds a plugin to the list.remove_plugin
- Removes a plugin from the list and returns the removed plugin if found.execute_all
- Executes all registered plugins.Make sure you make all relevant items public.
Vec<Box<dyn Plugin>>
for dynamic dispatch.name
method to identify and ensure uniqueness among plugins.pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin {}impl MyPlugin{ pub fn new() -> MyPlugin { Self { } }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) {}}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self){ for plugin in &self.plugins { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>}pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "name".to_string() } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { }}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if let Some(p) = self.plugins.iter().find(|&x| x.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", p.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin: &str) -> Option<Box<dyn Plugin>> { if let Some(val) = self.plugins.iter().position(|x| x.name() == plugin) { Some(self.plugins.remove(val)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|el| el.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self) -> ();}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if let Some(p) = self.plugins.iter().find(|&x| x.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", p.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(p_index) = self.plugins.iter().position(|x| x.name() == name) { return Some(self.plugins.remove(p_index)); } None } pub fn execute_all(&self) { self.plugins.iter().for_each(|x| x.execute() ); }}pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".to_string(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Running!"); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> PluginManager { PluginManager{ plugins: Vec::new() } } pub fn add_plugin(&mut self, item: Box<dyn Plugin> ) { if let Some(plugin) = self.plugins.iter().find(|&x| x.name() == item.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(item); } pub fn remove_plugin(&mut self, item: &str) -> Option<Box<dyn Plugin>> { if let Some(idx) = self.plugins.iter().position(|i|i.name() == item) { Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}pub struct MyPlugin {}impl MyPlugin { pub fn new() -> MyPlugin { MyPlugin{ } }}impl Plugin for MyPlugin { fn name(&self) -> &str { return "Plugin" } fn execute(&self) { }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}struct MyPlugin { pub name: String,}impl MyPlugin { fn new()-> Self { MyPlugin{name: "test".to_string()} }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { print!("hello"); }}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new(), } }pub fn add_plugin(&mut self, item: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == item.name()) { panic!("Plugin with name '{}' already exists", item.name()); } else { self.plugins.push(item) } } pub fn remove_plugin(&mut self, item: &str) -> Option<Box<dyn Plugin>> { if let Some(idx) = self.plugins.iter().position(|i|i.name() == item) { Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::{thread, time::Duration};pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin {}impl MyPlugin { pub fn new() -> Self { Self {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "my_plugin" } fn execute(&self) { thread::sleep(Duration::from_nanos(1)); }}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|x| x.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|x| x.name() == name) { let removed = self.plugins.swap_remove(index); Some(removed) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager{plugins: Vec::new()} } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if let Some(_) = self.plugins.iter().position(|probe| probe.name() == plugin.name()) { panic!("Plugin with name {} already exists", plugin.name()); } else { self.plugins.push(plugin) } } pub fn remove_plugin(&mut self, plugin: &str) -> Option<Box<dyn Plugin>>{ match self.plugins.iter().position(|probe| probe.name() == plugin) { Some(key) => Some(self.plugins.remove(key)), None => None } } pub fn execute_all(&self) { for p in &self.plugins { p.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); //manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin { name: String,}impl MyPlugin { fn new()->Self{ Self{name: "foo".into()} }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing."); }}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self{plugins: vec![]} } pub fn add_plugin(&mut self, item: Box<dyn Plugin>){ let finder = self.plugins.iter().find(|i| i.name() == item.name()); if let Some(i) = finder { panic!("Plugin with name {} already exists", item.name()); } else { self.plugins.push(item); } } pub fn remove_plugin(&mut self, item: &str) -> Option<Box<dyn Plugin>> { // let finder = self.plugins.iter().find(|i| i.name() == item); if let Some(idx) = self.plugins.iter().position(|i|i.name() == item) { Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { for item in self.plugins.iter() { item.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let plugins = self.plugins.iter().find(|item| item.name() == plugin.name()); if let Some(item) = plugins { panic!("Plugin with name {} already exists", plugin.name()) } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let index = self.plugins.iter().position(|item| item.name() == name)?; Some(self.plugins.remove(index)) } pub fn execute_all(&self) { self.plugins.iter().for_each(|item| item.execute()); }}struct MyPlugin { pub name: String,}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { print!("hello"); }}impl MyPlugin { fn new() -> Self { MyPlugin { name: "test".to_string(), } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}struct MyPlugin { pub name: String,}impl MyPlugin { fn new()-> Self { MyPlugin{name: "Jay Doe".to_string()} }}impl Plugin for MyPlugin { fn name (&self) -> &str {&self.name} fn execute(&self) {}}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ PluginManager{plugins: Vec::new()} } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>){ for p in &self.plugins{ if p.name() == plugin.name(){ panic!("Plugin with name {} already exists", plugin.name()) } } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin: &str) -> Option<Box<dyn Plugin>>{ if let Some(index) = self.plugins.iter().position(|p| p.name() == plugin) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self){ self.plugins.iter().for_each(|p|p.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}struct MyPlugin { pub name: String,}impl MyPlugin { fn new()-> Self { MyPlugin{name: "Jay Doe".to_string()} }}impl Plugin for MyPlugin { fn name (&self) -> &str {&self.name} fn execute(&self) {}}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ PluginManager{plugins: Vec::new()} } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>){ for p in &self.plugins{ if p.name() == plugin.name(){ panic!("Plugin with name {} already exists", plugin.name()) } } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin: &str) -> Option<Box<dyn Plugin>>{ if let Some(index) = self.plugins.iter().position(|p| p.name() == plugin) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self){ self.plugins.iter().for_each(|p|p.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins : Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ Self { plugins: vec![] } } pub fn add_plugin(&mut self, p : Box<dyn Plugin>){ if self.plugins.iter().any(|n| n.name() == p.name()){ panic!("Plugin with name '{}' already exists",p.name()); } else{ self.plugins.push(p); } } pub fn remove_plugin(&mut self, name : &str)->Option<Box<dyn Plugin>>{ if let Some(index) = self.plugins.iter().position(|n| n.name() == name){ return Some(self.plugins.remove(index)); } return None; } pub fn execute_all(&self){ self.plugins.iter().for_each(|n| n.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); //manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { // Unstable API in Rust 1.89 //self.plugins.pop_if(|p| p.name() == plugin_name) if let Some(index) = self.plugins.iter().position(|p| p.name() == plugin_name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); //manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins : Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() ->Self { Self {plugins : Vec::new()} } pub fn add_plugin(&mut self,plugin : Box<dyn Plugin>){ if let Some(_)= self.find(plugin.name()){ panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self,name:&str )->Option<Box<dyn Plugin>>{ if let Some(idx)= self.find(name){ return Some(self.plugins.remove(idx)); } None } pub fn execute_all(&self){ for p in &self.plugins { p.execute(); } } fn find(&self, name: &str)->Option<usize> { for (idx, p) in self.plugins.iter().enumerate() { if p.name() == name { return Some(idx); } } return None; }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { for p in &self.plugins { if p.name() == plugin.name() { panic!("Plugin with name '{}' already exists", plugin.name()); } } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { for (i, p) in self.plugins.iter().enumerate() { if p.name() == plugin_name { return Some(self.plugins.remove(i)); } } None } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: HashMap<String, Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>){ let name = plugin.name(); if(self.plugins.contains_key(name)){ panic!("Plugin with name '{}' already exists", name); } self.plugins.insert(name.to_string(), plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self){ for plugin in self.plugins.values() { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let plugin_name = plugin.name(); if self.plugins.iter().any(|p| p.name() == plugin_name) { panic!("Plugin with name '{}' already exists", plugin_name); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { let matching_index = self.plugins.iter().position(|plugin| plugin.name() == plugin_name); match matching_index { Some(idx) => Some(self.plugins.remove(idx)), None => None, } } pub fn execute_all(&self) { for plugin in self.plugins.iter() { plugin.execute(); } }}struct MyPlugin {}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("Executing MyPlugin!"); }}impl MyPlugin { pub fn new() -> Self { Self{} }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}struct MyPlugin { pub name: String,}impl MyPlugin { fn new()-> Self { MyPlugin{name: "Jay Doe".to_string()} }}impl Plugin for MyPlugin { fn name (&self) -> &str {&self.name} fn execute(&self) {}}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager{plugins: vec!{}} } pub fn add_plugin(&mut self, plugin:Box<dyn Plugin>) { let name = plugin.name(); for p in &self.plugins { if p.name() == name { panic!("Plugin with name '{}' already exists", name); } } self.plugins.push(plugin); } //pub fn remove_plugin(&mut self, plugin:Box<dyn Plugin>) -> Option< Box<dyn Plugin>> { pub fn remove_plugin(&mut self, name: &str) -> Option< Box<dyn Plugin>> { let idx = self.plugins.iter().position(|x| x.name() == name); if idx.is_none() { return None; } let idx = idx.unwrap(); //let plugin = &self.plugins[idx]; Some(self.plugins.remove(idx)) } pub fn execute_all(&self) { for p in &self.plugins { p.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;struct MyPlugin{ pub name: String }impl MyPlugin { pub fn new() -> Self{ Self{name: "Jane Doe".to_string() } }}impl Plugin for MyPlugin { fn name(&self)-> &str { return self.name.as_str() } fn execute(&self) {}}pub trait Plugin { fn name(&self) -> &str; fn execute(&self); }pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ Self{plugins: HashMap::new()} } pub fn add_plugin(&mut self, b: Box<dyn Plugin>) { if self.plugins.contains_key( &b.name().to_string() )//get( &b.name().to_string() ).is_some() {panic!("Plugin with name '{}' already exists.", b.name() ); } self.plugins.insert(b.name().to_string(), b); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(&name.to_string()) } pub fn execute_all(&self) { self.plugins.iter().for_each(|(x,v)|v.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}struct MyPlugin { pub name: String,}impl Plugin for MyPlugin { fn execute(&self) { print!("{}", self.name) } fn name(&self) -> &str { &self.name }}impl MyPlugin { fn new() -> Self { Self { name: "default".to_string() } }}pub trait PM { fn new() -> Self; fn add_plugin(&mut self, pl: Box<dyn Plugin>) -> Option<Box<dyn Plugin>>; fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>>; fn execute_all(&self) -> ();}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: HashMap<String, Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PM for PluginManager { fn new() -> Self { Self { plugins: HashMap::new() } } fn add_plugin(&mut self, pl: Box<dyn Plugin>) -> Option<Box<dyn Plugin>> { if self.plugins.contains_key(pl.name()) { panic!("Plugin with name '{}' already exists", pl.name()); } self.plugins.insert(pl.name().to_string(), pl) } fn execute_all(&self) -> () { for plugin in self.plugins.values() { plugin.execute(); } } fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: HashMap<String, Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name().to_string(); if self.plugins.contains_key(&name) { panic!("Plugin with name '{name}' already exists") } self.plugins.insert(name, plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { for plugin in self.plugins.values() { plugin.execute() } }}pub struct MyPlugin;impl MyPlugin { pub fn new() -> Self { Self }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin is executing its task."); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>, }// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|n| n.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>>{ // Find the position of the plugin with matching name if let Some(pos) = self.plugins.iter().position(|n| n.name() == name) { // Remove the plugin at the found position Some(self.plugins.remove(pos)) } else { None }} pub fn execute_all(&self) { for p in &self.plugins { println!("Name {}", p.name()); p.execute(); } }}// Add in this portion bc the test case didn't implement itpub struct MyPlugin;impl MyPlugin { pub fn new() -> Self { MyPlugin }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin is executing its task."); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self) { for p in &self.plugins { println!("Name {}", p.name()); p.execute(); } }}pub struct MyPlugin;impl MyPlugin { pub fn new() -> Self { MyPlugin }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin is executing its task."); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}#[derive(Default)]pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: HashMap<String, Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self::default() } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); if self.plugins.contains_key(name) { panic!("Plugin with name '{name}' already exists") } self.plugins.insert(plugin.name().to_string(), plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { self.plugins.values().for_each(|plugin| plugin.execute()); }}#[derive(Default)]struct MyPlugin {}impl MyPlugin { fn new() -> Self { Self::default() }}impl Plugin for MyPlugin { fn name(&self) -> &str { "test" } fn execute(&self) {}}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use core::{option::Option};use std::collections::HashMap;pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}struct MyPlugin{}impl MyPlugin { pub fn new() -> MyPlugin{ MyPlugin { } }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin") }}pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>>}impl PluginManager { pub fn new() -> PluginManager{ PluginManager { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>){ let plug_name = plugin.name().to_string(); if !self.plugins.contains_key(&plug_name){ self.plugins.insert(plug_name, plugin); }else { panic!("Plugin with name '{}' already exists", plug_name) } } pub fn execute_all(&self){ for (_, plug) in self.plugins.iter(){ plug.execute() } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>>{ self.plugins.remove(name) }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().map(|p| p.name()).collect::<Vec<_>>().contains(&plugin.name()) { panic!("Plugin with name '{}' already exists.", plugin.name()) } self.plugins.push(plugin) } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { if let Some(idx) = self.plugins.iter().position(|p| p.name() == plugin_name){ Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { for p in &self.plugins { p.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); // manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); if let Some(_) = self.plugins.iter().position(|p| p.name() == name) { panic!("Plugin with name [{name}] already exists"); } else { self.plugins.push(plugin); } } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|plugin| plugin.name() == plugin_name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}pub struct MyPlugin { pub name: String}impl MyPlugin { pub fn new() -> Self { MyPlugin { name: "MyPlugin".to_string() } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("this is {} running.", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); if let Some(_) = self.plugins.iter().position(|p| p.name() == name) { panic!("Plugin with name [{name}] already exists"); } else { self.plugins.push(plugin); } } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|plugin| plugin.name() == plugin_name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}pub struct MyPlugin { pub name: String}impl MyPlugin { pub fn new() -> Self { MyPlugin { name: "MyPlugin".to_string() } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("this is {} running.", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}#[derive(Default)]pub struct MyPlugin { name: String}impl MyPlugin { pub fn new() -> Self { Self::default() }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing plugin with name {}", self.name); }}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> PluginManager { PluginManager { plugins: vec![], } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) -> () { if self.plugins.iter().any(|pl| pl.name() == plugin.name()) { let name = plugin.name(); panic!("Plugin with name '{name}' already exists") } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, plugin_name: &str) -> Option<Box<dyn Plugin>> { match self.plugins.iter_mut().position(|plugin| plugin.name() == plugin_name) { Some(index) => Some(self.plugins.remove(index)), None => None, } } pub fn execute_all(&self) { for plugin in self.plugins.iter() { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self); // 1. Finish the trait}#[derive(Default)]pub struct MyPlugin { name: String}impl MyPlugin { pub fn new() -> Self { Self::default() }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing plugin with name {}", self.name); }}use std::collections::HashMap;pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>> // 2. Finish the struct // Make fields public}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.contains_key(plugin.name()) { panic!("Plugin with name {} already exists", plugin.name()); } else { self.plugins.insert(plugin.name().to_string(), plugin); } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>>{ self.plugins.remove(name) } pub fn execute_all(&self) { for plugin in self.plugins.values() { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin { name: String}impl MyPlugin { pub fn new()-> Self { Self { name: "defaultName".to_string() } }}impl Plugin for MyPlugin{ fn name(&self) -> &str { self.name.as_str() } fn execute(&self) { println!("{} executed", self.name); }}pub struct PluginManager { pub plugins: HashMap<String,Box<dyn Plugin>>} // 3. Implement the PluginManagerimpl PluginManager { pub fn new()-> Self { Self { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if !self.plugins.contains_key(plugin.name()) { self.plugins.insert(plugin.name().into(), plugin); }else{ panic!("Plugin with name '{}' already exists", plugin.name()); } } pub fn remove_plugin(&mut self, name: impl AsRef<str>)-> Option<Box<dyn Plugin>>{ self.plugins.remove(name.as_ref()) } pub fn execute_all(&self) { for plugin in self.plugins.values() { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::{collections::HashMap};pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>>,}impl PluginManager { pub fn new() -> Self { PluginManager { plugins: HashMap::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.contains_key(plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.insert(plugin.name().to_string(), plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { self.plugins.values().for_each(|plugin| plugin.execute()); }}struct MyPlugin { name: String,}impl MyPlugin { fn new() -> Self { MyPlugin { name: "MyPlugin".to_string(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Hello from {}!", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self); // 1. Finish the trait}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>, // 2. Finish the struct // Make fields public}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin(&mut self, item: Box<dyn Plugin>) { if self .plugins .iter() .any(|plugin| plugin.name() == item.name()) { panic!("Plugin with name '{}' already exists", item.name()); } self.plugins.push(item); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}pub struct MyPlugin { name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".to_string(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("{}: Executing...", self.name()) }}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(position) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(position)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}pub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>, // 2. Finish the struct // Make fields public}pub struct MyPlugin;impl MyPlugin { pub fn new() -> Self { Self {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin executed."); }}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: vec![], } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>){ if self.plugins.iter().any(|plg| plg.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(plugin) } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|x| x.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|plg| plg.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let index = self.plugins.iter().position(|plg| plg.name() == name)?; Some(self.plugins.remove(index)) } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}// Example usage// pub fn main() {// let mut manager = PluginManager::new();// manager.add_plugin(Box::new(MyPlugin::new()));// manager.execute_all();// }
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}pub struct MyPlugin;impl MyPlugin { pub fn new() -> Self { Self {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("MyPlugin executed."); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } }}pub struct MyPlugin{}impl MyPlugin { pub fn new() -> Self { Self {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("aaa"); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>> }// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { for p in &self.plugins { if p.name() == plugin.name() { panic!("{}",format!("Plugin with name '{}' already exists", plugin.name())) } } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { // Find the index of the plugin to remove let index = self.plugins.iter().position(|plugin| plugin.name() == name); // If an index is found, remove and return the plugin if let Some(i) = index { Some(self.plugins.remove(i)) } else { None // Plugin not found } } pub fn execute_all(&self) { for p in &self.plugins { p.execute() } }}pub struct MyPlugin {}impl MyPlugin { pub fn new() -> Self { Self {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "yo" } fn execute(&self) { println!("ye") }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}pub struct MyPlugin { name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".into(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("{}: Executing...", self.name) }}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); if self.plugins.iter().any(|x| x.name() == name.to_string() ){ panic!("Plugin with name '{name}' already exists"); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self,name: &str) -> Option<Box<dyn Plugin>>{ if let Some(idx) = self.plugins.iter().position(|x| x.name() == name.to_string() ) { return Some(self.plugins.remove(idx)) } None } pub fn execute_all(&self) { for v in &self.plugins { v.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: HashMap<String, Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: HashMap::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.contains_key(plugin.name()) { panic!("Plugin with name '{}' already exists!", plugin.name()); } self.plugins.insert(plugin.name().into(), plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { for plugin in self.plugins.values() { plugin.execute() } }}pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".into(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { self.name.as_str() } fn execute(&self) { println!("Execute plugin {}", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>,}impl PluginManager { pub fn new() -> Self { Self { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); if self.plugins.iter().any(|x| x.name() == name) { panic!("Plugin with name '{name}' already exists"); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(idx) = self.plugins.iter().position(|x| x.name() == name) { Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|x| x.execute()); }}pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".to_string(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing plugin: {}", self.name) }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashSet;pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: Vec<Box<dyn Plugin>>, plugin_names: HashSet<String>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: vec![], plugin_names: HashSet::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugin_names.contains(plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugin_names.insert(plugin.name().to_string()); self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { self.plugin_names.remove(name); return Some(self.plugins.swap_remove(index)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|p| p.execute()); }}pub struct MyPlugin { name: String,}impl MyPlugin { pub fn new() -> Self { Self { name: "MyPlugin".into(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("{}: Executing...", self.name) }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { // self.plugins.retain(|plugin| plugin.name() != name); if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}pub struct MyPlugin { name: String,}// 4. Implement the MyPluginimpl MyPlugin { pub fn new() -> Self { MyPlugin { name: String::from("MyPlugin"), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing {}", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { // self.plugins.retain(|plugin| plugin.name() != name); if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}pub struct MyPlugin { name: String,}// 4. Implement the MyPluginimpl MyPlugin { pub fn new() -> Self { MyPlugin { name: String::from("MyPlugin"), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing {}", self.name); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin { pub name: String}impl MyPlugin { pub fn new() -> Self { Self { name: String::from("MyPlugin") } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) {}}pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>>}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: HashMap::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.contains_key(plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.insert(plugin.name().to_owned(), plugin); } pub fn remove_plugin(&mut self, plugin_name: impl AsRef<str>) -> Option<Box<dyn Plugin>> { self.plugins.remove(plugin_name.as_ref()) } pub fn execute_all(&self) { for plugin in self.plugins.values() { plugin.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}pub struct MyPlugin { pub name: String}impl MyPlugin { pub fn new() -> Self { Self { name: "Test".to_string() } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { }}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager{ plugins: Vec::new() } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let existing = self.plugins.iter().filter(|val| val.name() == plugin.name()); if existing.count() > 0 { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let mut index = 0; for plugin_tmp in &self.plugins { if plugin_tmp.name() == name { return Some(self.plugins.remove(index)); } index +=1; } None } pub fn execute_all(&self) { self.plugins.iter().for_each(|plugin| plugin.execute()); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::HashMap;pub trait Plugin { fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { pub plugins: HashMap<String, Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { Self { plugins: HashMap::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.contains_key(plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.insert(plugin.name().to_string(), plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { for (_, p) in &self.plugins { p.execute(); } }}// // Example usage// pub fn main() {// let mut manager = PluginManager::new();// manager.add_plugin(Box::new(MyPlugin::new()));// manager.execute_all();// }
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { MyPlugin { name: "test".to_string(), } } pub fn new_with_name(name: String) -> Self { MyPlugin { name, } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing {}", self.name); }}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: vec![] } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let name = plugin.name(); for p in self.plugins.iter() { if *p.name() == *name { panic!("Plugin with name '{}' already exists.", name); } } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { for (i, p) in self.plugins.iter().enumerate() { if *p.name() == *name { return Some(self.plugins.remove(i)); } } None } pub fn execute_all(&self) { for p in self.plugins.iter() { p.execute(); } }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>,}#[derive(Clone, Debug)]pub struct MyPlugin { pub name: String,}impl MyPlugin { pub fn new() -> Self { MyPlugin { name: Default::default() } }}impl Plugin for MyPlugin { // 1. Implement the Plugin trait fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing plugin: {}", self.name); }}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: Vec::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|p| p.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()); } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(pos) = self.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(pos)) } else { None } } pub fn execute_all(&self) { for plugin in &self.plugins { plugin.execute(); } } }// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}