Struct Context 

pub struct Context<'a> { /* private fields */ }

Shared request validation and metadata packet processing.

Implementations

impl<'a> Context<'a>

pub fn new(request: &RewriteRequest<'a>) -> Result<Self, Error>

Validate a metadata-only request before invoking a container walker.

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

Poll cancellation while preserving the caller’s stop reason.

pub fn packet(&self, size: usize) -> Result<(), Error>

Enforce the parsed/expanded packet or regenerated metadata budget.

pub fn with_input(self, input: &'a [u8]) -> Self

Reuse the parent policy and limits for a contained image.

pub fn with_xmp_editing(self, enabled: bool) -> Self

Override descriptive XMP handling for a contained image.

pub fn services(&self) -> Result<&dyn Services, Error>

Require an application service provider.

pub fn xmp(&self, xml: &[u8]) -> Result<Option<Vec<u8>>, Error>

Apply explicitly enabled descriptive XMP editing within packet limits.

pub fn icc(&self, bytes: &[u8]) -> Result<Option<Vec<u8>>, Error>

Normalize a known ICC profile while retaining rendering dependencies.

pub fn decompress( &self, kind: Compression, bytes: &[u8], ) -> Result<Vec<u8>, Error>

Expand a metadata packet through a bounded caller service.

pub fn exif(&self, bytes: &[u8]) -> Result<Vec<u8>, Error>

Validate and filter EXIF while preserving orientation.

Methods from Deref<Target = RewriteRequest<'a>>

pub fn input(&self) -> &'a [u8]

Encoded source bytes.

pub fn policy(&self) -> &MetadataPolicy

Retention policy.

pub fn services(&self) -> Option<&'a dyn Services>

Optional application services.

pub fn edit_xmp(&self) -> bool

Whether descriptive XMP editing is enabled.

pub fn normalize_icc(&self) -> bool

Whether known ICC normalization is enabled.

pub fn remove_reconstruction(&self) -> bool

Whether JPEG reconstruction data may be removed.

pub fn max_input(&self) -> usize

Maximum input bytes.

pub fn max_output(&self) -> usize

Maximum output bytes.

pub fn max_metadata(&self) -> usize

Maximum packet and regenerated metadata bytes.

pub fn max_carriers(&self) -> usize

Maximum reported carriers.

pub fn pulse(&self) -> Option<&'a dyn Pulse>

Caller pulse token.

Trait Implementations

impl<'a> Clone for Context<'a>

fn clone(&self) -> Context<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Deref for Context<'a>

type Target = RewriteRequest<'a>

The resulting type after dereferencing.

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

Dereferences the value.