# Struct cargo::core::compiler::TargetInfo

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    pub struct TargetInfo {
        crate_type_process: ProcessBuilder,
        crate_types: RefCell<HashMap<CrateType, Option<(String, String)>>>,
        cfg: Vec<Cfg>,
        support_split_debuginfo: Vec<String>,
        pub sysroot: PathBuf,
        pub sysroot_target_libdir: PathBuf,
        pub rustflags: Arc<[String]>,
        pub rustdocflags: Arc<[String]>,
        pub support_check_cfg: bool,
    }

Expand description

Information about the platform target gleaned from querying rustc.

`RustcTargetData` keeps several of these, one for the host and the others for other specified targets. If no target is specified, it uses a clone from the host.

## Fields§

§`crate_type_process: ProcessBuilder`

A base process builder for discovering crate type information. In particular, this is used to determine the output filename prefix and suffix for a crate type.

§`crate_types: RefCell<HashMap<CrateType, Option<(String, String)>>>`

Cache of output filename prefixes and suffixes.

The key is the crate type name (like `cdylib`) and the value is `Some((prefix, suffix))`, for example `libcargo.so` would be `Some(("lib", ".so"))`. The value is `None` if the crate type is not supported.

§`cfg: Vec<Cfg>`

`cfg` information extracted from `rustc --print=cfg`.

§`support_split_debuginfo: Vec<String>`

Supported values for `-Csplit-debuginfo=` flag, queried from rustc

§`sysroot: PathBuf`

Path to the sysroot.

§`sysroot_target_libdir: PathBuf`

Path to the “lib” directory in the sysroot which rustc uses for linking target libraries.

§`rustflags: Arc<[String]>`

Extra flags to pass to `rustc`, see `extra_args`.

§`rustdocflags: Arc<[String]>`

Extra flags to pass to `rustdoc`, see `extra_args`.

§`support_check_cfg: bool`

Whether or not rustc (stably) supports the `--check-cfg` flag.

Can be removed once the minimum supported rustc version of Cargo is at minimum 1.80.0.

## Implementations§

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### impl TargetInfo

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#### pub fn new( gctx: &GlobalContext, requested_kinds: &[CompileKind], rustc: &Rustc, kind: CompileKind, ) -> CargoResult<TargetInfo>

Learns the information of target platform from `rustc` invocation(s).

Generally, the first time calling this function is expensive, as it may query `rustc` several times. To reduce the cost, output of each `rustc` invocation is cached by `Rustc::cached_output`.

Search `Tricky` to learn why querying `rustc` several times is needed.

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#### fn not_user_specific_cfg(cfg: &CargoResult<Cfg>) -> bool

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#### pub fn cfg(&self) -> &[Cfg]

All the target `Cfg` settings.

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#### fn file_types( &self, crate_type: &CrateType, flavor: FileFlavor, target_triple: &str, ) -> CargoResult<Option<Vec<FileType>>>

Returns the list of file types generated by the given crate type.

Returns `None` if the target does not support the given crate type.

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#### fn discover_crate_type( &self, crate_type: &CrateType, ) -> CargoResult<Option<(String, String)>>

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#### pub fn rustc_outputs( &self, mode: CompileMode, target_kind: &TargetKind, target_triple: &str, ) -> CargoResult<(Vec<FileType>, Vec<CrateType>)>

Returns all the file types generated by rustc for the given mode/target_kind.

The first value is a Vec of file types generated, the second value is a list of CrateTypes that are not supported by the given target.

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#### fn calc_rustc_outputs( &self, target_kind: &TargetKind, target_triple: &str, ) -> CargoResult<(Vec<FileType>, Vec<CrateType>)>

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#### pub fn supports_debuginfo_split(&self, split: InternedString) -> bool

Checks if the debuginfo-split value is supported by this target

## Trait Implementations§

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### impl Clone for TargetInfo

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

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

## Auto Trait Implementations§

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### impl !Freeze for TargetInfo

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### impl !RefUnwindSafe for TargetInfo

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### impl Send for TargetInfo

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### impl !Sync for TargetInfo

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### impl Unpin for TargetInfo

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### impl UnwindSafe for TargetInfo

## 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> CloneToUninit for T
where T: Clone,

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

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

## 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: 352 bytes