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);}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();}
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 { PluginManager { plugins: Vec::new(), } } fn validate_no_plugin_with_name(&self, name: &str) { if self.plugins.iter().any(|plugin| plugin.name() == name) { panic!("Plugin with name '{name}' already exists"); } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { self.validate_no_plugin_with_name(plugin.name()); self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.iter() .position(|plugin| plugin.name() == name) .map(|index| self.plugins.remove(index)) } 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>>}impl PluginManager { pub fn new() -> Self { Self { plugins: vec![] } } pub fn add_plugin<T: Plugin + 'static>(&mut self, plugin: Box<T>) { if self.plugins.iter().any(|e| e.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 + 'static)>> { if let Some(index) = self.plugins.iter().position(|e| e.name() == name ) { return Some(self.plugins.remove(index)); } return None } pub fn execute_all(&self) { }}pub struct MyPlugin {}impl MyPlugin { pub fn new() -> Self { Self{} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } 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 MyPlugin {name: String}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins: Vec<Box<dyn Plugin>>}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self){}}impl MyPlugin { pub fn new() -> Self { Self {name: "testing name".to_string()} } }// 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>> { self.plugins .iter() .position(|x| x.name() == name) .map(|x| self.plugins.remove(x)) } 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 { // 2. Finish the struct 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 .iter() .position(|p| p.name() == name) .map(|i| self.plugins.remove(i)) } pub fn execute_all(&self) { self.plugins.iter().for_each(|p| p.execute()); }}pub struct MyPlugin;impl MyPlugin { fn new() -> MyPlugin { MyPlugin {} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } 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(|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) { return Some(self.plugins.remove(index)) } None } pub fn execute_all(&self) { for plugin in &self.plugins { 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 { 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(|plg| plg.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(plugin); } pub fn execute_all(&self) { self.plugins.iter().for_each(|plg| plg.execute()); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let i = self.plugins.iter().position(|plg| plg.name() == name)?; Some(self.plugins.remove(i)) }}// 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>>}impl PluginManager { pub fn new() -> Self { PluginManager{plugins: Vec::new()} } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { if self.plugins.iter().any(|x| x.name() == plugin.name()) { panic!("dublicate plugin by name") } self.plugins.push(plugin); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let index = self.plugins.iter().position(|x| x.name() == name)?; Some(self.plugins.remove(index)) } pub fn execute_all(&self) { for plugin in self.plugins.iter() { plugin.execute(); } }}pub struct MyPlugin {}impl MyPlugin { pub fn new() -> Self { MyPlugin{} }}impl Plugin for MyPlugin { fn name(&self) -> &str { "IDDQD" } fn execute(&self) {}}// 3. Implement the PluginManager// 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 { // 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(|plg| plg.name() == plugin.name()) { panic!("Plugin with name '{}' already exists", plugin.name()) } self.plugins.push(plugin); } pub fn execute_all(&self) { self.plugins.iter().for_each(|plg| plg.execute()); } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { let i = self.plugins.iter().position(|plg| plg.name() == name)?; Some(self.plugins.remove(i)) }}// Example usage// pub fn main() {// let mut manager = PluginManager::new();// manager.add_plugin(Box::new(MyPlugin::new()));// manager.execute_all();// }
use std::collections::BTreeMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}type PluginContainer = BTreeMap<String, Box<dyn Plugin>>;pub struct PluginManager { // 2. Finish the struct pub plugins: PluginContainer,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: PluginContainer::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let plugin_name = plugin.name().to_string(); if let Some(_) = self.plugins.insert(plugin_name.clone(), plugin) { panic!("Plugin with name '{}' already exists", plugin_name) } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { self.plugins.iter().for_each(|(_, p)| p.execute()); } }pub struct MyPlugin;impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("{} executed.", self.name()); }}impl MyPlugin { pub fn new() -> Self { MyPlugin {} }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::BTreeMap;pub trait Plugin { // 1. Finish the trait fn name(&self) -> &str; fn execute(&self);}type PluginContainer = BTreeMap<String, Box<dyn Plugin>>;pub struct PluginManager { // 2. Finish the struct pub plugins: PluginContainer,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: PluginContainer::new(), } } pub fn add_plugin(&mut self, plugin: Box<dyn Plugin>) { let plugin_name = plugin.name().to_string(); if let Some(_) = self.plugins.insert(plugin_name.clone(), plugin) { panic!("Plugin with name '{}' already exists", plugin_name) } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { self.plugins.remove(name) } pub fn execute_all(&self) { self.plugins.iter().for_each(|(_, p)| p.execute()); } }pub struct MyPlugin;impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("{} executed.", self.name()); }}impl MyPlugin { pub fn new() -> Self { MyPlugin {} }}// 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);}type PluginContainer = HashMap<String, Box<dyn Plugin>>;pub struct PluginManager { // 2. Finish the struct pub plugins: PluginContainer,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self { PluginManager { plugins: PluginContainer::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 (name, plugin) in self.plugins.iter() { println!("Executing {}.", name); plugin.execute(); } } }pub struct MyPlugin;impl Plugin for MyPlugin { fn name(&self) -> &str { "MyPlugin" } fn execute(&self) { println!("{} executed.", self.name()); }}impl MyPlugin { pub fn new() -> Self { MyPlugin {} }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}
use std::collections::BTreeMap;pub trait Plugin { fn name(&self) -> &str; fn execute(&self); // 1. Finish the trait}pub struct PluginManager { // 2. Finish the struct // Make fields public pub plugins : BTreeMap<String,Box<dyn Plugin>>,}// 3. Implement the PluginManagerimpl PluginManager { pub fn new() -> Self{ return Self{ plugins : BTreeMap::new(), }; } pub fn add_plugin(&mut self,el : Box<dyn Plugin>){ let namex = (*el).name().to_string(); if let Some(_) = self.plugins.insert(namex.clone(),el){ panic!("Plugin with name '{namex}' already exists"); } } 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(|(_,e)| e.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);}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Execute Plugin"); }}pub struct MyPlugin { pub name : String,}impl MyPlugin { fn new() -> Self { Self { name : "MyPlugin".to_string() } }}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().find(|p| p.name() == plugin.name()).is_none() { self.plugins.push(plugin); } else { panic!("Plugin with name '{}' already exists", plugin.name()); } } pub fn remove_plugin(&mut self, name : &str) -> Option<Box<dyn Plugin>>{ if let Some(index) = self.plugins.iter().position(|p| p.name() == name) { return Some(self.plugins.remove(index)) } 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 self.plugins.iter().find(|x| x.name() == plugin.name()).is_none() { self.plugins.push(plugin); } else { panic!("Plugin with name '{}' already exists", plugin.name()); } } pub fn execute_all(&self) { for plugin in &self.plugins { println!("Executing plugin {}", plugin.name()); plugin.execute(); } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|plg| plg.name() == name) { Some(self.plugins.remove(index)) } else { None } }}struct MyPlugin { name: String }impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing MyPlugin!"); }}impl MyPlugin { fn new() -> MyPlugin { MyPlugin { name: "myPlug".to_owned(), } }}// 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 { // 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().find(|x| x.name() == plugin.name()).is_none() { self.plugins.push(plugin); } else { panic!("Plugin with name '{}' already exists", plugin.name()); } } pub fn execute_all(&self) { for plugin in &self.plugins { println!("Executing plugin {}", plugin.name()); plugin.execute(); } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|plg| plg.name() == name) { Some(self.plugins.remove(index)) } else { None } }}struct MyPlugin { name: String,}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing MyPlugin!"); } }impl MyPlugin { fn new() -> MyPlugin { MyPlugin { name: "myPlug".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>>,}// 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().find(|p| p.name() == plugin.name()).is_some() { 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.plugins.iter().position(|p| p.name() == name) { Some(self.plugins.remove(idx)) } else { None } } pub fn execute_all(&self) { for p in &self.plugins { p.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) {}}// 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![] } } pub fn add_plugin(&mut self, new_plugin: Box<dyn Plugin>) { if self .plugins .iter() .find(|p| p.name() == new_plugin.name()) .is_none() { self.plugins.push(new_plugin); } else { panic!("Plugin with name '{}' already exists", new_plugin.name()) } } pub fn remove_plugin(&mut self, name: &str) -> Option<Box<dyn Plugin>> { if let Some(index) = self.plugins.iter().position(|plg| plg.name() == name) { Some(self.plugins.remove(index)) } else { None } } pub fn execute_all(&self) {}}struct MyPlugin { name: String,}impl MyPlugin { fn new() -> Self { Self { name: "MyPlugin".to_string(), } }}impl Plugin for MyPlugin { fn name(&self) -> &str { &self.name } fn execute(&self) { println!("Executing MyPlugin!"); }}// Example usagepub fn main() { let mut manager = PluginManager::new(); manager.add_plugin(Box::new(MyPlugin::new())); manager.execute_all();}