Struct sqlx::types::uuid::adapter::Hyphenated [−][src]
pub struct Hyphenated(_);
Expand description
Implementations
Creates a Hyphenated
from a Uuid
.
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.to_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.to_hyphenated().encode_lower(&mut buf);
assert_eq!(
&buf as &[_],
b"936da01f-9abd-4d9d-80c7-02af85c822a8!!!!" as &[_]
);
Ok(())
}
*/
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.to_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.to_hyphenated().encode_upper(&mut buf);
assert_eq!(
&buf as &[_],
b"936DA01F-9ABD-4D9D-80C7-02AF85C822A8!!!!" as &[_]
);
Ok(())
}
*/
Trait Implementations
pub fn decode(
value: MySqlValueRef<'_>
) -> Result<Hyphenated, Box<dyn Error + Send + Sync + 'static, Global>>
pub fn decode(
value: MySqlValueRef<'_>
) -> Result<Hyphenated, Box<dyn Error + Send + Sync + 'static, Global>>
Decode a new value of this type using a raw value from the database.
pub fn decode(
value: SqliteValueRef<'_>
) -> Result<Hyphenated, Box<dyn Error + Send + Sync + 'static, Global>>
pub fn decode(
value: SqliteValueRef<'_>
) -> Result<Hyphenated, Box<dyn Error + Send + Sync + 'static, Global>>
Decode a new value of this type using a raw value from the database.
Returns the ādefault valueā for a type. Read more
Writes the value of self
into buf
without moving self
. Read more
Writes the value of self
into buf
in the expected format for the database.
Writes the value of self
into buf
without moving self
. Read more
Writes the value of self
into buf
in the expected format for the database.
Performs the conversion.
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Returns the canonical SQL type for this Rust type. Read more
Auto Trait Implementations
impl RefUnwindSafe for Hyphenated
impl Send for Hyphenated
impl Sync for Hyphenated
impl Unpin for Hyphenated
impl UnwindSafe for Hyphenated
Blanket Implementations
Mutably borrows from an owned value. Read more
Compare self to key
and return true
if they are equal.