LinkSelfContained in rustc_session::config - Rust
Description: The different values `-C link-self-contained` can take: a list of individually enabled or disabled components used during linking, coming from the rustc distribution, instead of being found somewhere on the host system.

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## LinkSelfContained

# Struct LinkSelfContained

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    pub struct LinkSelfContained {
        pub explicitly_set: Option<bool>,
        enabled_components: LinkSelfContainedComponents,
        disabled_components: LinkSelfContainedComponents,
    }

Expand description

The different values `-C link-self-contained` can take: a list of individually enabled or disabled components used during linking, coming from the rustc distribution, instead of being found somewhere on the host system.

They can be set in bulk via `-C link-self-contained=yes|y|on` or `-C link-self-contained=no|n|off`, and those boolean values are the historical defaults.

But each component is fine-grained, and can be unstably targeted, to use:

- some CRT objects
- the libc static library
- libgcc/libunwind libraries
- a linker we distribute
- some sanitizer runtime libraries
- all other MinGW libraries and Windows import libs

## Fields§

§`explicitly_set: Option<bool>`

Whether the user explicitly set `-C link-self-contained` on or off, the historical values. Used for compatibility with the existing opt-in and target inference.

§`enabled_components: LinkSelfContainedComponents`

The components that are enabled on the CLI, using the `+component` syntax or one of the `true` shortcuts.

§`disabled_components: LinkSelfContainedComponents`

The components that are disabled on the CLI, using the `-component` syntax or one of the `false` shortcuts.

## Implementations§

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### impl LinkSelfContained

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#### pub(crate) fn handle_cli_component(&mut self, component: &str) -> Option<()>

Incorporates an enabled or disabled component as specified on the CLI, if possible. For example: `+linker`, and `-crto`.

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#### pub(crate) fn set_all_explicitly(&mut self, enabled: bool)

Turns all components on or off and records that this was done explicitly for compatibility purposes.

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#### pub fn on() -> Self

Helper creating a fully enabled `LinkSelfContained` instance. Used in tests.

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#### fn check_unstable_variants( &self, target_tuple: &TargetTuple, ) -> Result<(), String>

To help checking CLI usage while some of the values are unstable: returns whether one of the unstable components was set individually, for the given `TargetTuple`. This would also require the `-Zunstable-options` flag, to be allowed.

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

Returns whether the self-contained linker component was enabled on the CLI, using the `-C link-self-contained=+linker` syntax, or one of the `true` shortcuts.

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

Returns whether the self-contained linker component was disabled on the CLI, using the `-C link-self-contained=-linker` syntax, or one of the `false` shortcuts.

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#### fn check_consistency(&self) -> Option<LinkSelfContainedComponents>

Returns CLI inconsistencies to emit errors: individual components were both enabled and disabled.

## Trait Implementations§

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### impl Clone for LinkSelfContained

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

Returns a duplicate 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 LinkSelfContained

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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 Default for LinkSelfContained

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#### fn default() -> LinkSelfContained

Returns the “default value” for a type. Read more
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### impl PartialEq for LinkSelfContained

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

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

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl StructuralPartialEq for LinkSelfContained

## Auto Trait Implementations§

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### impl DynSend for LinkSelfContained

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### impl DynSync for LinkSelfContained

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### impl Freeze for LinkSelfContained

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### impl RefUnwindSafe for LinkSelfContained

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### impl Send for LinkSelfContained

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### impl Sync for LinkSelfContained

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### impl Unpin for LinkSelfContained

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### impl UnsafeUnpin for LinkSelfContained

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### impl UnwindSafe for LinkSelfContained

## Blanket Implementations§

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### impl<T> Aligned for T

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#### const ALIGN: Alignment

Alignment of `Self`.
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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> AnyEq for T
where T: Any + PartialEq,

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#### fn equals(&self, other: &(dyn Any + 'static)) -> bool

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#### fn as_any(&self) -> &(dyn Any + 'static)

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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> CloneToUninit for T
where T: Clone,

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

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
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### impl<T> DynClone for T
where T: Clone,

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#### fn __clone_box(&self, _: Private) -> *mut ()

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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> Instrument for T

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

Instruments this type with the provided `Span`, returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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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> IntoEither for T

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

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#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### 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
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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### impl<T> ErasedDestructor for T
where T: 'static,

## 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: 3 bytes