cargo::core::compiler::unit

# Struct Unit

Source

    pub struct Unit {
        inner: Rc<UnitInner>,
    }

Expand description

All information needed to define a unit.

A unit is an object that has enough information so that cargo knows how to build it. For example, if your package has dependencies, then every dependency will be built as a library unit. If your package is a library, then it will be built as a library unit as well, or if it is a binary with `main.rs`, then a binary will be output. There are also separate unit types for `test`ing and `check`ing, amongst others.

The unit also holds information about all possible metadata about the package in `pkg`.

A unit needs to know extra information in addition to the type and root source file. For example, it needs to know the target architecture (OS, chip arch etc.) and it needs to know whether you want a debug or release build. There is enough information in this struct to figure all that out.

## Fields§

§`inner: Rc<UnitInner>`

## Implementations§

Source§

### impl Unit

Source

#### pub fn buildkey(&self) -> String

Gets the unique key for `-Zbuild-plan`.

## Methods from Deref<Target = UnitInner>§

Source

#### pub fn requires_upstream_objects(&self) -> bool

Returns whether compilation of this unit requires all upstream artifacts to be available.

This effectively means that this unit is a synchronization point (if the return value is `true`) that all previously pipelined units need to finish in their entirety before this one is started.

Source

#### pub fn is_local(&self) -> bool

Returns whether or not this is a “local” package.

A “local” package is one that the user can likely edit, or otherwise wants warnings, etc.

Source

#### pub fn show_warnings(&self, gctx: &GlobalContext) -> bool

Returns whether or not warnings should be displayed for this unit.

## Trait Implementations§

Source§

### impl Clone for Unit

Source§

#### fn clone(&self) -> Unit

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from `source`. Read more
Source§

### impl Debug for Unit

Source§

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

Formats the value using the given formatter. Read more
Source§

### impl Deref for Unit

Source§

#### type Target = UnitInner

The resulting type after dereferencing.
Source§

#### fn deref(&self) -> &UnitInner

Dereferences the value.
Source§

### impl Hash for Unit

Source§

#### fn hash<H: Hasher>(&self, hasher: &mut H)

Feeds this value into the given `Hasher`. Read more
1.3.0 · Source§

#### fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given `Hasher`. Read more
Source§

### impl Ord for Unit

Source§

#### fn cmp(&self, other: &Unit) -> Ordering

This method returns an `Ordering` between `self` and `other`. Read more
1.21.0 · Source§

#### fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · Source§

#### fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · Source§

#### fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
Source§

### impl PartialEq for Unit

Source§

#### fn eq(&self, other: &Unit) -> bool

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · Source§

#### fn ne(&self, other: &Rhs) -> bool

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

### impl PartialOrd for Unit

Source§

#### fn partial_cmp(&self, other: &Unit) -> Option<Ordering>

This method returns an ordering between `self` and `other` values if one exists. Read more
1.0.0 · Source§

#### fn lt(&self, other: &Rhs) -> bool

Tests less than (for `self` and `other`) and is used by the `<` operator. Read more
1.0.0 · Source§

#### fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more
1.0.0 · Source§

#### fn gt(&self, other: &Rhs) -> bool

Tests greater than (for `self` and `other`) and is used by the `>` operator. Read more
1.0.0 · Source§

#### fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more
Source§

### impl Eq for Unit

## Auto Trait Implementations§

§

### impl Freeze for Unit

§

### impl RefUnwindSafe for Unit

§

### impl !Send for Unit

§

### impl !Sync for Unit

§

### impl Unpin for Unit

§

### impl UnwindSafe for Unit

## Blanket Implementations§

Source§

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

Source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
Source§

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

Source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

### impl<T> CloneToUninit for T
where T: Clone,

Source§

#### unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dst`. Read more
§

### impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

§

#### fn compare(&self, key: &K) -> Ordering

Compare self to `key` and return their ordering.
§

### impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

#### fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
§

### impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

#### fn equivalent(&self, key: &K) -> bool

Compare self to `key` and return `true` if they are equal.
§

### impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

#### fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
Source§

### impl<T> From<T> for T

Source§

#### fn from(t: T) -> T

Returns the argument unchanged.

§

### 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
Source§

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

Source§

#### fn into(self) -> U

Calls `U::from(self)`.

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

Source§

### impl<T> IntoEither for T

Source§

#### 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
Source§

#### 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> 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
Source§

### impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

Source§

#### type Target = T

🔬This is a nightly-only experimental API. (`arbitrary_self_types`)
The target type on which the method may be called.
Source§

### impl<T> Same for T

Source§

#### type Output = T

Should always be `Self`
Source§

### impl<T> ToOwned for T
where T: Clone,

Source§

#### type Owned = T

The resulting type after obtaining ownership.
Source§

#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

#### type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

#### 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<T> MaybeSendSync for T

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes