Trait IdentFragment 

pub trait IdentFragment {
    // Required method
    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;

    // Provided method
    fn span(&self) -> Option<Span> { ... }
}

Specialized formatting trait used by format_ident!.

Ident arguments formatted using this trait will have their r# prefix stripped, if present.

See format_ident! for more information.

Required Methods

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

Format this value as an identifier fragment.

Provided Methods

fn span(&self) -> Option<Span>

Span associated with this IdentFragment.

If non-None, may be inherited by formatted identifiers.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl IdentFragment for String

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

impl IdentFragment for bool

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

impl IdentFragment for char

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

impl IdentFragment for str

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

impl IdentFragment for u8

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

impl IdentFragment for u16

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

impl IdentFragment for u32

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

impl IdentFragment for u64

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

impl IdentFragment for u128

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

impl IdentFragment for usize

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

impl<T> IdentFragment for &T

where T: IdentFragment + ?Sized,

fn span(&self) -> Option<Span>

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

impl<T> IdentFragment for &mut T

where T: IdentFragment + ?Sized,

fn span(&self) -> Option<Span>

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

impl<T> IdentFragment for Cow<'_, T>

where T: IdentFragment + ToOwned + ?Sized,

fn span(&self) -> Option<Span>

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

Implementors

impl IdentFragment for Ident

impl IdentFragment for Index

Available on crate feature printing only.

impl IdentFragment for Member

Available on crate feature printing only.