Struct TaskList 

pub struct TaskList { /* private fields */ }

Manages a list of tasks for the ephemeral task manager

This structure provides methods for adding, starting, completing, and listing tasks. Tasks follow a state machine that transitions from Pending through InProgress to Completed.

Implementations

impl TaskList

pub fn new() -> Self

Creates a new empty task list

pub fn append_task(&mut self, description: String) -> Task

Appends a new task to the end of the list

Returns the newly created task with Pending status

pub fn prepend_task(&mut self, description: String) -> Task

Prepends a new task to the beginning of the list

Returns the newly created task with Pending status

pub fn insert_task_after( &mut self, existing_task_id: usize, description: String, ) -> Result<Task>

Inserts a new task after an existing task with the given ID

Returns the newly created task or an error if the existing task is not found

pub fn start_task(&mut self, task_id: usize) -> Result<Task>

Starts a task by changing its status from Pending to InProgress

Returns an error if the task is not found or not in Pending status

pub fn complete_task(&mut self, task_id: usize) -> Result<Task>

Completes a task by changing its status from InProgress to Completed

Returns an error if the task is not found or not in InProgress status

pub fn list_tasks(&self) -> Vec<Task>

Returns all tasks in the list

pub fn clear_tasks(&mut self) -> usize

Clears all tasks from the list

Returns the number of tasks that were cleared

Trait Implementations

impl Clone for TaskList

fn clone(&self) -> TaskList

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TaskList

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TaskList

fn default() -> Self

Returns the “default value” for a type.