Struct TaskView 

pub struct TaskView<'a, R: Renderer> { /* private fields */ }

Read-only view of a task, passed to Renderer callbacks.

fn render_task_line(
    &mut self, f: &mut FrameWriter<'_>, task: &TaskView<'_, Self>,
) -> std::io::Result<()> {
    let prefix = if task.active() { ".." } else { "done" };
    writeln!(f, "[{}] {} (depth={})", prefix, task.data(), task.depth())
}

Implementations

impl<'a, R: Renderer> TaskView<'a, R>

pub fn new(tasks: &'a TaskStore<R>, id: TaskId) -> Self

Creates a view over the task with the given id.

pub fn id(&self) -> TaskId

Returns TaskId of this task.

pub fn data(&self) -> &R::TaskData

Returns the user-defined data stored on this task.

pub fn depth(&self) -> usize

Returns the nesting depth of this task (root children are depth 1).

pub fn elapsed(&self) -> Duration

How long since this task started.

pub fn active(&self) -> bool

Returns true if the task is active (not completed or cancelled).

pub fn completed(&self) -> bool

Returns true if the task’s span has closed.

pub fn cancelled(&self) -> bool

Returns true if the task was marked cancelled by crate::Action::CancelAll.

pub fn parent<'b>(&'b self) -> Option<TaskView<'b, R>>

Returns the parent task, or None for root-level tasks.

pub fn events<'b>( &'b self, ) -> impl DoubleEndedIterator<Item = EventView<'b, R>> + ExactSizeIterator

Returns an iterator over the task’s buffered events.

pub fn subtasks<'b>( &'b self, ) -> impl DoubleEndedIterator<Item = TaskView<'b, R>> + ExactSizeIterator

Returns an iterator over the task’s direct children.

pub fn index(&self) -> usize

Returns the position of this task among its parent’s children.

pub fn view(&self, id: TaskId) -> TaskView<'a, R>

Create a view of another task in the same tree.

Trait Implementations

impl<'a, R: Clone + Renderer> Clone for TaskView<'a, R>

fn clone(&self) -> TaskView<'a, R>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, R: Copy + Renderer> Copy for TaskView<'a, R>