Struct FuncCodeReader 

pub struct FuncCodeReader<E: Endianness, CR: CodesRead<E> + ?Sized>(/* private fields */);

A newtype containing a function pointer dispatching the read method for a code.

This is a more efficient way to pass a StaticCodeRead to a method, as a FuncCodeReader does not need to do a runtime test to dispatch the correct code.

Instances can be obtained by calling the new method with a variant of the Codes enum, or by calling the new_with_func method with a function pointer.

Note that since selection of the code happens in the new method, it is more efficient to clone a FuncCodeReader than to create a new one.

Implementations

impl<E: Endianness, CR: CodesRead<E> + ?Sized> FuncCodeReader<E, CR>

pub const fn new(code: Codes) -> Result<Self, DispatchError>

Returns a new FuncCodeReader for the given code.

The code is canonicalized before the lookup, so equivalent codes yield the same reader.

Errors

The method will return an error if there is no constant for the given code in FuncCodeReader.

pub const fn new_with_func( read_func: fn(&mut CR) -> Result<u64, <CR as BitRead<E>>::Error>, ) -> Self

Returns a new FuncCodeReader for the given function.

pub const fn get_func( &self, ) -> fn(&mut CR) -> Result<u64, <CR as BitRead<E>>::Error>

Returns the function pointer for the code.

Trait Implementations

impl<E: Endianness, CR: CodesRead<E> + ?Sized> Clone for FuncCodeReader<E, CR>

Manually implement Clone to avoid the Clone bound on CR and E

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug + Endianness, CR: Debug + CodesRead<E> + ?Sized> Debug for FuncCodeReader<E, CR>

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

Formats the value using the given formatter.

impl<E: Endianness, CR: CodesRead<E> + ?Sized> FlatType for FuncCodeReader<E, CR>

where fn(&mut CR) -> Result<u64, <CR as BitRead<E>>::Error>: MemSize + FlatType,

type Flat = False

impl<E: Endianness, CR: CodesRead<E> + ?Sized> MemDbgImpl for FuncCodeReader<E, CR>

where fn(&mut CR) -> Result<u64, <CR as BitRead<E>>::Error>: MemDbgImpl + FlatType,

fn _mem_dbg_rec_on( &self, _memdbg_writer: &mut impl Write, _memdbg_total_size: usize, _memdbg_max_depth: usize, _memdbg_prefix: &mut String, _memdbg_is_last: bool, _memdbg_flags: DbgFlags, _memdbg_refs: &mut HashSet<usize>, ) -> Result

fn _mem_dbg_depth_on( &self, writer: &mut impl Write, total_size: usize, max_depth: usize, prefix: &mut String, field_name: Option<&str>, is_last: bool, padded_size: usize, flags: DbgFlags, dbg_refs: &mut HashSet<usize>, ) -> Result<(), Error>

fn _mem_dbg_depth_on_impl( &self, writer: &mut impl Write, total_size: usize, max_depth: usize, prefix: &mut String, field_name: Option<&str>, is_last: bool, padded_size: usize, flags: DbgFlags, dbg_refs: &mut HashSet<usize>, ref_display: RefDisplay, ) -> Result<(), Error>

Internal implementation for depth display.

impl<E: Endianness, CR: CodesRead<E> + ?Sized> MemSize for FuncCodeReader<E, CR>

where fn(&mut CR) -> Result<u64, <CR as BitRead<E>>::Error>: MemSize + FlatType,

fn mem_size_rec( &self, _memsize_flags: SizeFlags, _memsize_refs: &mut HashMap<usize, usize>, ) -> usize

Recursive implementation that tracks visited references for deduplication.

fn mem_size(&self, flags: SizeFlags) -> usize

Returns the (recursively computed) overall memory size of the structure in bytes.

impl<E: Endianness, CR: CodesRead<E> + ?Sized> StaticCodeRead<E, CR> for FuncCodeReader<E, CR>

fn read(&self, reader: &mut CR) -> Result<u64, CR::Error>

impl<E: Copy + Endianness, CR: Copy + CodesRead<E> + ?Sized> Copy for FuncCodeReader<E, CR>