Struct ExifIterEntry 

pub struct ExifIterEntry { /* private fields */ }

Lazy yield from ExifIter. Carries a value xor error invariant — every entry holds exactly one of Self::value or Self::error.

Why private fields?

Public fields would let callers construct nonsense like value=Some, error=Some. Private fields + getters preserve the invariant while exposing the natural API: Self::result for borrowed access, Self::into_result for ownership transfer (consumes self, no panic path).

Implementations

impl ExifIterEntry

pub fn ifd(&self) -> IfdIndex

IFD this entry was found in (IfdIndex::MAIN for the primary image).

pub fn tag(&self) -> TagOrCode

Recognized tag, or raw u16 code if not in ExifTag.

pub fn value(&self) -> Option<&EntryValue>

Borrow the value. None iff this entry hit a parse error.

pub fn error(&self) -> Option<&EntryError>

Borrow the error. None iff this entry parsed successfully.

pub fn result(&self) -> Result<&EntryValue, &EntryError>

Borrow either value or error, mirroring the underlying invariant.

pub fn into_result(self) -> Result<EntryValue, EntryError>

Consume self and return the value or error. No second-call panic path (the entry is moved out).

Trait Implementations

impl Clone for ExifIterEntry

fn clone(&self) -> ExifIterEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExifIterEntry

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

Formats the value using the given formatter.