Struct rocket::serde::uuid::fmt::Urn

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pub struct Urn(/* private fields */);
Available on crate feature uuid only.
Expand description

Format a Uuid as a URN string, like urn:uuid:67e55044-10b1-426f-9247-bb680e5fe0c8.

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impl Urn

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pub const LENGTH: usize = 45usize

The length of a URN Uuid string.

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pub const fn from_uuid(uuid: Uuid) -> Urn

Creates a Urn from a Uuid.

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pub fn encode_lower<'buf>(&self, buffer: &'buf mut [u8]) -> &'buf mut str

Writes the Uuid as a lower-case URN string to buffer, and returns the subslice of the buffer that contains the encoded UUID.

This is slightly more efficient than using the formatting infrastructure as it avoids virtual calls, and may avoid double buffering.

§Panics

Panics if the buffer is not large enough: it must have length at least LENGTH. Uuid::encode_buffer can be used to get a sufficiently-large temporary buffer.

§Examples
use uuid::Uuid;

fn main() -> Result<(), uuid::Error> {
    let uuid = Uuid::parse_str("936DA01f9abd4d9d80c702af85c822a8")?;

    // the encoded portion is returned
    assert_eq!(
        uuid.urn().encode_lower(&mut Uuid::encode_buffer()),
        "urn:uuid:936da01f-9abd-4d9d-80c7-02af85c822a8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 49];
    uuid.urn().encode_lower(&mut buf);
    assert_eq!(
        uuid.urn().encode_lower(&mut buf),
        "urn:uuid:936da01f-9abd-4d9d-80c7-02af85c822a8"
    );
    assert_eq!(
        &buf as &[_],
        b"urn:uuid:936da01f-9abd-4d9d-80c7-02af85c822a8!!!!" as &[_]
    );
     
    Ok(())
}

*/

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pub fn encode_upper<'buf>(&self, buffer: &'buf mut [u8]) -> &'buf mut str

Writes the Uuid as an upper-case URN string to buffer, and returns the subslice of the buffer that contains the encoded UUID.

This is slightly more efficient than using the formatting infrastructure as it avoids virtual calls, and may avoid double buffering.

§Panics

Panics if the buffer is not large enough: it must have length at least LENGTH. Uuid::encode_buffer can be used to get a sufficiently-large temporary buffer.

§Examples
use uuid::Uuid;

fn main() -> Result<(), uuid::Error> {
    let uuid = Uuid::parse_str("936da01f9abd4d9d80c702af85c822a8")?;

    // the encoded portion is returned
    assert_eq!(
        uuid.urn().encode_upper(&mut Uuid::encode_buffer()),
        "urn:uuid:936DA01F-9ABD-4D9D-80C7-02AF85C822A8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 49];
    assert_eq!(
        uuid.urn().encode_upper(&mut buf),
        "urn:uuid:936DA01F-9ABD-4D9D-80C7-02AF85C822A8"
    );
    assert_eq!(
        &buf as &[_],
        b"urn:uuid:936DA01F-9ABD-4D9D-80C7-02AF85C822A8!!!!" as &[_]
    );

    Ok(())
}

*/

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pub const fn as_uuid(&self) -> &Uuid

Get a reference to the underlying Uuid.

§Examples
use uuid::Uuid;

let urn = Uuid::nil().urn();
assert_eq!(*urn.as_uuid(), Uuid::nil());
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pub const fn into_uuid(self) -> Uuid

Consumes the Urn, returning the underlying Uuid.

§Examples
use uuid::Uuid;

let urn = Uuid::nil().urn();
assert_eq!(urn.into_uuid(), Uuid::nil());

Trait Implementations§

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impl AsRef<Uuid> for Urn

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fn as_ref(&self) -> &Uuid

Converts this type into a shared reference of the (usually inferred) input type.
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impl Borrow<Uuid> for Urn

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fn borrow(&self) -> &Uuid

Immutably borrows from an owned value. Read more
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impl Clone for Urn

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fn clone(&self) -> Urn

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Urn

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Urn

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fn default() -> Urn

Returns the “default value” for a type. Read more
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impl Display for Urn

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl From<Urn> for Uuid

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fn from(f: Urn) -> Uuid

Converts to this type from the input type.
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impl From<Uuid> for Urn

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fn from(f: Uuid) -> Urn

Converts to this type from the input type.
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impl Hash for Urn

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

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 LowerHex for Urn

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.
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impl Ord for Urn

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for Urn

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fn eq(&self, other: &Urn) -> 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 PartialOrd for Urn

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fn partial_cmp(&self, other: &Urn) -> 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
1.0.0 · source§

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 Serialize for Urn

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fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl UpperHex for Urn

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.
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impl Copy for Urn

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impl Eq for Urn

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impl StructuralPartialEq for Urn

Auto Trait Implementations§

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impl Freeze for Urn

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impl RefUnwindSafe for Urn

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impl Send for Urn

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impl Sync for Urn

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impl Unpin for Urn

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impl UnwindSafe for Urn

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where T: 'static + ?Sized,

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Immutably borrows from an owned value. Read more
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Compare self to key and return their ordering.
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Returns the argument unchanged.

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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