# Struct cargo::core::compiler::rustdoc::RustdocExternMap

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    pub struct RustdocExternMap {
        registries: HashMap<String, String>,
        std: Option<RustdocExternMode>,
    }

Expand description

A map of registry names to URLs where documentations are hosted. This is for unstable feature `-Zrustdoc-map`.

## Fields§

§`registries: HashMap<String, String>`

- Key is the registry name in the configuration `[registries.<name>]`.
- Value is the URL where the documentation is hosted.

§`std: Option<RustdocExternMode>`

## Trait Implementations§

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### impl Debug for RustdocExternMap

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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 RustdocExternMap

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#### fn default() -> Self

Returns the “default value” for a type. Read more
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### impl<'de> Deserialize<'de> for RustdocExternMap where RustdocExternMap: Default,

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#### fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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### impl Hash for RustdocExternMap

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#### fn hash<H: Hasher>(&self, into: &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 RustdocExternMap

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### impl Send for RustdocExternMap

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### impl Sync for RustdocExternMap

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### impl Unpin for RustdocExternMap

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### impl UnwindSafe for RustdocExternMap

## 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, 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

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### impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,

## 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:80 bytes