Struct block_tools::db::use_diesel::serialize::Output

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

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

Implementations

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

pub fn new(
    out: T,
    metadata_lookup: &'a <DB as TypeMetadata>::MetadataLookup
) -> Output<'a, T, DB>

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 as TypeMetadata>::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, DB> Clone for Output<'a, T, DB> where
    DB: Clone + TypeMetadata,
    T: Clone,
    <DB as TypeMetadata>::MetadataLookup: 'a,
    <DB as TypeMetadata>::MetadataLookup: Clone, 

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T, DB> Copy for Output<'a, T, DB> where
    DB: Copy + TypeMetadata,
    T: Copy,
    <DB as TypeMetadata>::MetadataLookup: 'a,
    <DB as TypeMetadata>::MetadataLookup: Copy, 

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

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

Formats the value using the given formatter.

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

type Target = T

The resulting type after dereferencing.

pub fn deref(&self) -> &<Output<'a, T, DB> as Deref>::Target

Dereferences the value.

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

pub fn deref_mut(&mut self) -> &mut <Output<'a, T, DB> as Deref>::Target

Mutably dereferences the value.

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

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

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

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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

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

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

pub fn flush(&mut self) -> Result<(), Error>

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

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

Attempts to write an entire buffer into this writer.

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

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

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

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

pub 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.

pub 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.

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

Creates a "by reference" adaptor for this instance of Write.