Struct Empty

pub struct Empty;

Expand description

A task that has no actions by default.

Trait Implementations§

impl Debug for Empty

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

Formats the value using the given formatter. Read more

impl Default for Empty

fn default() -> Empty

Returns the “default value” for a type. Read more

impl InitializeTask for Empty

fn initialize( _task: &mut Executable<T>, _project: &Project, ) -> Result<(), PayloadError<ProjectError>>

Initialize tasks

impl Task for Empty

fn task_action( _task: &mut Executable<Empty>, _project: &Project, ) -> Result<(), PayloadError<BuildException>>

The action that the task performs

fn did_work(&self) -> bool

Check whether this task did work. Read more

impl TaskIO for Empty

fn configure_io( _task: &mut Executable<T>, ) -> Result<(), PayloadError<ProjectError>>

During the initialization of the task, configures the inputs and outputs of the task.

fn recover_outputs( &mut self, _output: &Output, ) -> Result<(), PayloadError<ProjectError>>

Recovers outputs from previous run if up-to-date

impl UpToDate for Empty

fn up_to_date(&self) -> bool

Whether this value is up to date. Read more

Auto Trait Implementations§

impl Freeze for Empty

impl RefUnwindSafe for Empty

impl Send for Empty

impl Sync for Empty

impl Unpin for Empty

impl UnwindSafe for Empty

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CreateTask for T
where T: Default + Task,

fn new(_: &TaskId, _: &Project) -> Result<T, PayloadError<ProjectError>>

Creates a new task. The using_id is the id of the task that’s being created.

fn description() -> String

The default description for a Task

fn options_declarations() -> Option<OptionDeclarations>

Gets an optional flags for this task. Read more

fn try_set_from_decoder( &mut self, _decoder: &OptionsDecoder<'_>, ) -> Result<(), PayloadError<ProjectError>>

Try to get values from a decoder. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> InstanceOf for T
where T: Any + ?Sized,

fn instance_of<T>(&self) -> bool
where T: Any + ?Sized,

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> IntoNamed for T

fn named<S>(self, name: S) -> Named<Self>
where S: AsRef<str>,

Add a name to this object

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> ErasedDestructor for T
where T: 'static,

impl<E> Extension for E
where E: 'static + Send + Sync,

impl<T> MaybeSendSync for T