# Struct std::path::PrefixComponent

1.0.0 · source ·

    pub struct PrefixComponent<'a> { /* private fields */ }

Expand description

A structure wrapping a Windows path prefix as well as its unparsed string representation.

In addition to the parsed `Prefix` information returned by `kind`, `PrefixComponent` also holds the raw and unparsed `OsStr` slice, returned by `as_os_str`.

Instances of this `struct` can be obtained by matching against the `Prefix` variant on `Component`.

Does not occur on Unix.

## Examples

    use std::path::{Component, Path, Prefix};
    use std::ffi::OsStr;

    let path = Path::new(r"c:\you\later\");
    match path.components().next().unwrap() {
        Component::Prefix(prefix_component) => {
            assert_eq!(Prefix::Disk(b'C'), prefix_component.kind());
            assert_eq!(OsStr::new("c:"), prefix_component.as_os_str());
        }
        _ => unreachable!(),
    }

Run

## Implementations§

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### impl<'a> PrefixComponent<'a>

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#### pub fn kind(&self) -> Prefix<'a>

Returns the parsed prefix data.

See `Prefix`’s documentation for more information on the different kinds of prefixes.

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#### pub fn as_os_str(&self) -> &'a OsStr

Returns the raw `OsStr` slice for this prefix.

## Trait Implementations§

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### impl<'a> Clone for PrefixComponent<'a>

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#### fn clone(&self) -> PrefixComponent<'a>

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<'a> Debug for PrefixComponent<'a>

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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 PrefixComponent<'_>

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#### fn hash<H: Hasher>(&self, h: &mut H)

Feeds this value into the given `Hasher`. Read more
1.3.0 · source§

#### 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 PrefixComponent<'_>

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

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

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

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

Restrict a value to a certain interval. Read more
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### impl<'a> PartialEq for PrefixComponent<'a>

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#### fn eq(&self, other: &PrefixComponent<'a>) -> 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<'a> PartialOrd for PrefixComponent<'a>

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#### fn partial_cmp(&self, other: &PrefixComponent<'a>) -> 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<'a> Copy for PrefixComponent<'a>

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### impl<'a> Eq for PrefixComponent<'a>

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### impl<'a> StructuralEq for PrefixComponent<'a>

## Auto Trait Implementations§

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### impl<'a> RefUnwindSafe for PrefixComponent<'a>

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### impl<'a> Send for PrefixComponent<'a>

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### impl<'a> Sync for PrefixComponent<'a>

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### impl<'a> Unpin for PrefixComponent<'a>

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### impl<'a> UnwindSafe for PrefixComponent<'a>

## 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> 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.