Struct Output

pub struct Output<'a, T, DB>
where
    DB: TypeMetadata,
    DB::MetadataLookup: 'a,
{ /* private fields */ }

Wraps a buffer to be written by ToSql with additional backend specific utilities.

Implementations

impl<'a, T, DB: TypeMetadata> Output<'a, T, DB>

pub fn new(out: T, metadata_lookup: &'a DB::MetadataLookup) -> Self

Construct a new Output

pub fn with_buffer<U>(&self, new_out: U) -> Output<'a, U, DB>

Create a new Output with the given buffer

pub fn into_inner(self) -> T

Return the raw buffer this type is wrapping

pub fn metadata_lookup(&self) -> &'a DB::MetadataLookup

Returns the backend’s mechanism for dynamically looking up type metadata at runtime, if relevant for the given backend.

Trait Implementations

impl<'a, T: Clone, DB> Clone for Output<'a, T, DB>

where DB: TypeMetadata + Clone, DB::MetadataLookup: 'a + Clone,

fn clone(&self) -> Output<'a, T, DB>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T, DB> Debug for Output<'a, T, DB>

where T: Debug, DB: TypeMetadata,

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

Formats the value using the given formatter.

impl<'a, T, DB: TypeMetadata> Deref for Output<'a, T, DB>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T, DB: TypeMetadata> DerefMut for Output<'a, T, DB>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a, T, U, DB> PartialEq<U> for Output<'a, T, DB>

where DB: TypeMetadata, T: PartialEq<U>,

fn eq(&self, rhs: &U) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, T: Write, DB: TypeMetadata> Write for Output<'a, T, DB>

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_all(&mut self, buf: &[u8]) -> Result<()>

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>

Writes a formatted string into this writer, returning any error encountered.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.

impl<'a, T: Copy, DB> Copy for Output<'a, T, DB>

where DB: TypeMetadata + Copy, DB::MetadataLookup: 'a + Copy,