Struct rocket::serde::uuid::fmt::Hyphenated

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

Format a Uuid as a hyphenated string, like 67e55044-10b1-426f-9247-bb680e5fe0c8.

Implementations§

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impl Hyphenated

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pub const LENGTH: usize = 36usize

The length of a hyphenated Uuid string.

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

Creates a Hyphenated 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 hyphenated 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.hyphenated()
            .encode_lower(&mut Uuid::encode_buffer()),
        "936da01f-9abd-4d9d-80c7-02af85c822a8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 40];
    uuid.hyphenated().encode_lower(&mut buf);
    assert_eq!(
        &buf as &[_],
        b"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 hyphenated 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.hyphenated()
            .encode_upper(&mut Uuid::encode_buffer()),
        "936DA01F-9ABD-4D9D-80C7-02AF85C822A8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 40];
    uuid.hyphenated().encode_upper(&mut buf);
    assert_eq!(
        &buf as &[_],
        b"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 hyphenated = Uuid::nil().hyphenated();
assert_eq!(*hyphenated.as_uuid(), Uuid::nil());
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pub const fn into_uuid(self) -> Uuid

Consumes the Hyphenated, returning the underlying Uuid.

§Examples
use uuid::Uuid;

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

Trait Implementations§

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impl AsRef<Uuid> for Hyphenated

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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 Hyphenated

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fn borrow(&self) -> &Uuid

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

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fn clone(&self) -> Hyphenated

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 Hyphenated

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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 Hyphenated

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fn default() -> Hyphenated

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

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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<Hyphenated> for Uuid

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fn from(f: Hyphenated) -> Uuid

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

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fn from(f: Uuid) -> Hyphenated

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

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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 Hyphenated

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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 Ord for Hyphenated

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fn cmp(&self, other: &Hyphenated) -> 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 Hyphenated

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fn eq(&self, other: &Hyphenated) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

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 Hyphenated

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fn partial_cmp(&self, other: &Hyphenated) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

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

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 Hyphenated

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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 Hyphenated

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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 Copy for Hyphenated

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impl Eq for Hyphenated

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impl StructuralPartialEq for Hyphenated

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