# Struct bootstrap::core::build_steps::compile::Rustc

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    pub struct Rustc {
        pub target: TargetSelection,
        pub compiler: Compiler,
        crates: Vec<String>,
    }

## Fields§

§`target: TargetSelection`§`compiler: Compiler`

The previous compiler used to compile this compiler.

§`crates: Vec<String>`

Whether to build a subset of crates, rather than the whole compiler.

This should only be requested by the user, not used within rustbuild itself. Using it within rustbuild can lead to confusing situation where lints are replayed in two different steps.

## Implementations§

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### impl Rustc

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#### pub fn new(compiler: Compiler, target: TargetSelection) -> Self

## Trait Implementations§

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### impl Clone for Rustc

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

Returns a copy of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Debug for Rustc

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

Formats the value using the given formatter. Read more
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### impl Hash for Rustc

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#### fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given `Hasher`. Read more
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#### 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
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### impl Ord for Rustc

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

This method returns an `Ordering` between `self` and `other`. Read more
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#### fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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#### fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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#### fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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### impl PartialEq for Rustc

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

This method tests for `self` and `other` values to be equal, and is used by `==`.
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#### fn ne(&self, other: &Rhs) -> bool

This method tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl PartialOrd for Rustc

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

This method returns an ordering between `self` and `other` values if one exists. Read more
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#### fn lt(&self, other: &Rhs) -> bool

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more
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#### fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more
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#### fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more
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#### fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more
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### impl Step for Rustc

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#### type Output = u32

We return the stage of the “actual” compiler (not the uplifted one).

By “actual” we refer to the uplifting logic where we may not compile the requested stage; instead, we uplift it from the previous stages. Which can lead to bootstrap failures in specific situations where we request stage X from other steps. However we may end up uplifting it from stage Y, causing the other stage to fail when attempting to link with stage X which was never actually built.

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#### fn run(self, builder: &Builder<'_>) -> u32

Builds the compiler.

This will build the compiler for a particular stage of the build using the `compiler` targeting the `target` architecture. The artifacts created will also be linked into the sysroot directory.

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#### const ONLY_HOSTS: bool = true

If true, then this rule should be skipped if –target was specified, but –host was not
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#### const DEFAULT: bool = false

Whether this step is run by default as part of its respective phase. `true` here can still be overwritten by `should_run` calling `default_condition`.
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#### fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_>

When bootstrap is passed a set of paths, this controls whether this rule will execute. However, it does not get called in a “default” context when we are not passed any paths; in that case, `make_run` is called directly.
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#### fn make_run(run: RunConfig<'_>)

Builds up a “root” rule, either as a default rule or from a path passed to us. Read more
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### impl Eq for Rustc

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### impl StructuralPartialEq for Rustc

## Auto Trait Implementations§

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### impl Freeze for Rustc

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### impl RefUnwindSafe for Rustc

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### impl Send for Rustc

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### impl Sync for Rustc

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### impl Unpin for Rustc

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### impl UnwindSafe for Rustc

## Blanket Implementations§

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

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

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

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

Returns the argument unchanged.

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

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

Calls `U::from(self)`.

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

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### impl<T> Pointable for T

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#### const ALIGN: usize = _

The alignment of pointer.
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#### type Init = T

The type for initializers.
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#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

## 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: 96 bytes