Struct CFMutableData 

pub struct CFMutableData { /* private fields */ }

Available on crate feature CFData only.

Apple’s documentation

This is toll-free bridged with NSMutableData.

Implementations

impl CFMutableData

pub fn new( allocator: Option<&CFAllocator>, capacity: CFIndex, ) -> Option<CFRetained<CFMutableData>>

pub unsafe fn new_copy( allocator: Option<&CFAllocator>, capacity: CFIndex, the_data: Option<&CFData>, ) -> Option<CFRetained<CFMutableData>>

Safety

• allocator might not allow None.
• the_data might not allow None.

impl CFMutableData

pub fn mutable_byte_ptr(the_data: Option<&CFMutableData>) -> *mut u8

impl CFMutableData

pub fn set_length(the_data: Option<&CFMutableData>, length: CFIndex)

pub fn increase_length(the_data: Option<&CFMutableData>, extra_length: CFIndex)

pub unsafe fn append_bytes( the_data: Option<&CFMutableData>, bytes: *const u8, length: CFIndex, )

Safety

• the_data might not allow None.
• bytes must be a valid pointer.

pub unsafe fn replace_bytes( the_data: Option<&CFMutableData>, range: CFRange, new_bytes: *const u8, new_length: CFIndex, )

Safety

• the_data might not allow None.
• new_bytes must be a valid pointer.

pub fn delete_bytes(the_data: Option<&CFMutableData>, range: CFRange)

Methods from Deref<Target = CFData>

pub fn len(&self) -> usize

The number of bytes contained by the CFData.

pub fn is_empty(&self) -> bool

Whether the CFData is empty.

pub unsafe fn as_bytes_unchecked(&self) -> &[u8]

The underlying bytes in the CFData.

Safety

The CFData must not be mutated for the lifetime of the returned string. Consider using to_vec instead if this requirement is a bit difficult to uphold.

pub fn to_vec(&self) -> Vec<u8>

Available on crate feature alloc only.

Copy the contents of the CFData into a new Vec.

pub fn length(&self) -> CFIndex

pub fn byte_ptr(&self) -> *const u8

pub unsafe fn bytes(&self, range: CFRange, buffer: *mut u8)

Safety

buffer must be a valid pointer.

pub unsafe fn find( &self, data_to_find: Option<&CFData>, search_range: CFRange, compare_options: CFDataSearchFlags, ) -> CFRange

Safety

data_to_find might not allow None.

Methods from Deref<Target = CFType>

pub fn downcast_ref<T: ConcreteType>(&self) -> Option<&T>

Attempt to downcast the type to that of type T.

This is the reference-variant. Use CFRetained::downcast if you want to convert a retained type. See also ConcreteType for more details on which types support being converted to.

pub fn retain_count(&self) -> usize

Get the reference count of the object.

This function may be useful for debugging. You normally do not use this function otherwise.

Beware that some things (like CFNumbers, small CFStrings etc.) may not have a normal retain count for optimization purposes, and can return usize::MAX in that case.

Trait Implementations

impl AsRef<AnyObject> for CFMutableData

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFData> for CFMutableData

fn as_ref(&self) -> &CFData

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFMutableData> for CFMutableData

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFType> for CFMutableData

fn as_ref(&self) -> &CFType

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for CFMutableData

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<CFData> for CFMutableData

fn borrow(&self) -> &CFData

Immutably borrows from an owned value.

impl Borrow<CFType> for CFMutableData

fn borrow(&self) -> &CFType

Immutably borrows from an owned value.

impl Debug for CFMutableData

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

Formats the value using the given formatter.

impl Deref for CFMutableData

type Target = CFData

The resulting type after dereferencing.

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

Dereferences the value.

impl Hash for CFMutableData

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for CFMutableData

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl PartialEq for CFMutableData

fn eq(&self, other: &Self) -> 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 RefEncode for CFMutableData

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Type for CFMutableData

fn retain(&self) -> CFRetained<Self>

where Self: Sized,

Increment the reference count of the receiver.

fn as_concrete_TypeRef(&self) -> &Self

👎Deprecated: this is redundant

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_get_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::retain

Helper for easier transition from the core-foundation crate.

fn as_CFTypeRef(&self) -> &CFType

where Self: AsRef<CFType>,

👎Deprecated: this is redundant (CF types deref to CFType)

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_create_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::from_raw

Helper for easier transition from the core-foundation crate.

impl Eq for CFMutableData