# Struct cargo::core::compiler::BuildOutput

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    pub struct BuildOutput {
        pub library_paths: Vec<PathBuf>,
        pub library_links: Vec<String>,
        pub linker_args: Vec<(LinkType, String)>,
        pub cfgs: Vec<String>,
        pub check_cfgs: Vec<String>,
        pub env: Vec<(String, String)>,
        pub metadata: Vec<(String, String)>,
        pub rerun_if_changed: Vec<PathBuf>,
        pub rerun_if_env_changed: Vec<String>,
        pub warnings: Vec<String>,
    }

Expand description

Contains the parsed output of a custom build script.

## Fields§

§`library_paths: Vec<PathBuf>`

Paths to pass to rustc with the `-L` flag.

§`library_links: Vec<String>`

Names and link kinds of libraries, suitable for the `-l` flag.

§`linker_args: Vec<(LinkType, String)>`

Linker arguments suitable to be passed to `-C link-arg=<args>`

§`cfgs: Vec<String>`

Various `--cfg` flags to pass to the compiler.

§`check_cfgs: Vec<String>`

Various `--check-cfg` flags to pass to the compiler.

§`env: Vec<(String, String)>`

Additional environment variables to run the compiler with.

§`metadata: Vec<(String, String)>`

Metadata to pass to the immediate dependencies.

§`rerun_if_changed: Vec<PathBuf>`

Paths to trigger a rerun of this build script. May be absolute or relative paths (relative to package root).

§`rerun_if_env_changed: Vec<String>`

Environment variables which, when changed, will cause a rebuild.

§`warnings: Vec<String>`

Warnings generated by this build.

These are only displayed if this is a “local” package, `-vv` is used, or there is a build error for any target in this package.

## Implementations§

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### impl BuildOutput

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#### pub fn parse_file( path: &Path, library_name: Option<String>, pkg_descr: &str, script_out_dir_when_generated: &Path, script_out_dir: &Path, extra_check_cfg: bool, nightly_features_allowed: bool, targets: &[Target] ) -> CargoResult<BuildOutput>

Like `BuildOutput::parse` but from a file path.

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#### pub fn parse( input: &[u8], library_name: Option<String>, pkg_descr: &str, script_out_dir_when_generated: &Path, script_out_dir: &Path, extra_check_cfg: bool, nightly_features_allowed: bool, targets: &[Target] ) -> CargoResult<BuildOutput>

Parses the output instructions of a build script.

- `pkg_descr` — for error messages
- `library_name` — for determining if `RUSTC_BOOTSTRAP` should be allowed
- `extra_check_cfg` — for unstable feature `-Zcheck-cfg`

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#### pub fn parse_rustc_flags( value: &str, whence: &str ) -> CargoResult<(Vec<PathBuf>, Vec<String>)>

Parses `cargo:rustc-flags` instruction.

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#### pub fn parse_rustc_env( value: &str, whence: &str ) -> CargoResult<(String, String)>

Parses `cargo:rustc-env` instruction.

## Trait Implementations§

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### impl Clone for BuildOutput

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

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 BuildOutput

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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 BuildOutput

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#### fn default() -> BuildOutput

Returns the “default value” for a type. Read more
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### impl Hash for BuildOutput

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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

## Auto Trait Implementations§

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### impl RefUnwindSafe for BuildOutput

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### impl Send for BuildOutput

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### impl Sync for BuildOutput

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### impl Unpin for BuildOutput

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### impl UnwindSafe for BuildOutput

## Blanket Implementations§

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### impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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> Same<T> for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for Twhere 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 Twhere 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 Twhere 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 Twhere V: MultiLane<T>,

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

## 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:240 bytes