pub struct RequiredArgument;
Expand description
Marker to illustrate that a required argument is missing.
Trait Implementations§
Source§impl Default for RequiredArgument
impl Default for RequiredArgument
Source§fn default() -> RequiredArgument
fn default() -> RequiredArgument
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for RequiredArgument
impl RefUnwindSafe for RequiredArgument
impl Send for RequiredArgument
impl Sync for RequiredArgument
impl Unpin for RequiredArgument
impl UnwindSafe for RequiredArgument
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more