Struct sqlx::types::uuid::fmt::Simple

#[repr(transparent)]
pub struct Simple(_);

Format a Uuid as a simple string, like 67e5504410b1426f9247bb680e5fe0c8.

Implementations

impl Simple

pub const LENGTH: usize = 32usize

The length of a simple Uuid string.

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

Creates a Simple from a Uuid.

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

Writes the Uuid as a lower-case simple 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.simple().encode_lower(&mut Uuid::encode_buffer()),
        "936da01f9abd4d9d80c702af85c822a8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 36];
    assert_eq!(
        uuid.simple().encode_lower(&mut buf),
        "936da01f9abd4d9d80c702af85c822a8"
    );
    assert_eq!(
        &buf as &[_],
        b"936da01f9abd4d9d80c702af85c822a8!!!!" as &[_]
    );

    Ok(())
}

*/

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

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

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.simple().encode_upper(&mut Uuid::encode_buffer()),
        "936DA01F9ABD4D9D80C702AF85C822A8"
    );

    // the buffer is mutated directly, and trailing contents remains
    let mut buf = [b'!'; 36];
    assert_eq!(
        uuid.simple().encode_upper(&mut buf),
        "936DA01F9ABD4D9D80C702AF85C822A8"
    );
    assert_eq!(
        &buf as &[_],
        b"936DA01F9ABD4D9D80C702AF85C822A8!!!!" as &[_]
    );

    Ok(())
}

*/

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

Get a reference to the underlying Uuid.

Examples

use uuid::Uuid;

let simple = Uuid::nil().simple();
assert_eq!(*simple.as_uuid(), Uuid::nil());

pub const fn into_uuid(self) -> Uuid

Consumes the Simple, returning the underlying Uuid.

Examples

use uuid::Uuid;

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

Trait Implementations

impl AsRef<Uuid> for Simple

fn as_ref(&self) -> &Uuid

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<Uuid> for Simple

fn borrow(&self) -> &Uuid

Immutably borrows from an owned value.

impl Clone for Simple

fn clone(&self) -> Simple

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Simple

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

Formats the value using the given formatter.

impl Decode<'_, MySql> for Simple

fn decode( value: MySqlValueRef<'_> ) -> Result<Simple, Box<dyn Error + Send + Sync + 'static, Global>>

Decode a new value of this type using a raw value from the database.

impl Decode<'_, Sqlite> for Simple

fn decode( value: SqliteValueRef<'_> ) -> Result<Simple, Box<dyn Error + Send + Sync + 'static, Global>>

Decode a new value of this type using a raw value from the database.

impl Default for Simple

fn default() -> Simple

Returns the “default value” for a type.

impl Display for Simple

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

Formats the value using the given formatter.

impl Encode<'_, MySql> for Simple

fn encode_by_ref(&self, buf: &mut Vec<u8, Global>) -> IsNull

Writes the value of self into buf without moving self.

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNullwhere Self: Sized,

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl<'q> Encode<'q, Sqlite> for Simple

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>, Global> ) -> IsNull

Writes the value of self into buf without moving self.

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNullwhere Self: Sized,

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl From<Simple> for Uuid

fn from(f: Simple) -> Uuid

Converts to this type from the input type.

impl From<Uuid> for Simple

fn from(f: Uuid) -> Simple

Converts to this type from the input type.

impl Hash for Simple

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerHex for Simple

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

Formats the value using the given formatter.

impl Ord for Simple

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<Simple> for Simple

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

This method tests for self and other values to be equal, and is used by ==.

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.

impl PartialOrd<Simple> for Simple

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

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Type<MySql> for Simple

fn type_info() -> MySqlTypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &MySqlTypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl Type<Sqlite> for Simple

fn type_info() -> SqliteTypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<DB as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl UpperHex for Simple

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

Formats the value using the given formatter.

impl Copy for Simple

impl Eq for Simple

impl StructuralEq for Simple

impl StructuralPartialEq for Simple