Struct druid::lens::Map

pub struct Map<Get, Put> { /* fields omitted */ }

Lens built from a getter and a setter

Implementations

impl<Get, Put> Map<Get, Put>

pub fn new<A: ?Sized, B>(get: Get, put: Put) -> Self where
    Get: Fn(&A) -> B,
    Put: Fn(&mut A, B), 

Construct a mapping

See also LensExt::map

Trait Implementations

impl<Get: Clone, Put: Clone> Clone for Map<Get, Put>

pub fn clone(&self) -> Map<Get, Put>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Get: Copy, Put: Copy> Copy for Map<Get, Put>

impl<Get: Debug, Put: Debug> Debug for Map<Get, Put>

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

Formats the value using the given formatter.

impl<A: ?Sized, B, Get, Put> Lens<A, B> for Map<Get, Put> where
    Get: Fn(&A) -> B,
    Put: Fn(&mut A, B), 

pub fn with<V, F: FnOnce(&B) -> V>(&self, data: &A, f: F) -> V

Get non-mut access to the field.

pub fn with_mut<V, F: FnOnce(&mut B) -> V>(&self, data: &mut A, f: F) -> V

Get mutable access to the field.