Struct defmt::Display2Format

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pub struct Display2Format<'a, T: Display + ?Sized>(pub &'a T);

Expand description

An “adapter” type to feed Display values into defmt macros, which expect defmt::Format values.

This adapter disables compression and uses the core::fmt code on-device! You should prefer defmt::Format over Display whenever possible.

Examples

defmt::info!("{}", defmt::Display2Format(&expensive_thing));
//                                        ˆˆˆˆˆˆˆˆˆˆˆˆˆˆˆ
//                                        must implement `fmt::Display`

Note that any provided defmt display hints will be ignored because this always uses {} to format the contained value.

Tuple Fields

0: &'a T

Trait Implementations

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impl<T: Display + ?Sized> Format for Display2Format<'_, T>

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fn format(&self, _fmt: Formatter<'_>)

Writes the defmt representation of self to fmt.

Auto Trait Implementations

impl<'a, T: ?Sized> RefUnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

impl<'a, T: ?Sized> Send for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> Sync for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> Unpin for Display2Format<'a, T>

impl<'a, T: ?Sized> UnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct defmt::Display2Format

Examples

Tuple Fields

Trait Implementations

impl<T: Display + ?Sized> Format for Display2Format<'_, T>

fn format(&self, _fmt: Formatter<'_>)

Auto Trait Implementations

impl<'a, T: ?Sized> RefUnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

impl<'a, T: ?Sized> Send for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> Sync for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> Unpin for Display2Format<'a, T>

impl<'a, T: ?Sized> UnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct defmt::Display2Format

Examples

Tuple Fields

Trait Implementations

impl<T: Display + ?Sized> Format for Display2Format<'_, T>

fn format(&self, _fmt: Formatter<'_>)

Auto Trait Implementations

impl<'a, T: ?Sized> RefUnwindSafe for Display2Format<'a, T> where T: RefUnwindSafe,

impl<'a, T: ?Sized> Send for Display2Format<'a, T> where T: Sync,

impl<'a, T: ?Sized> Sync for Display2Format<'a, T> where T: Sync,

impl<'a, T: ?Sized> Unpin for Display2Format<'a, T>

impl<'a, T: ?Sized> UnwindSafe for Display2Format<'a, T> where T: RefUnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<'a, T: ?Sized> RefUnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

impl<'a, T: ?Sized> Send for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> Sync for Display2Format<'a, T> where
T: Sync,

impl<'a, T: ?Sized> UnwindSafe for Display2Format<'a, T> where
T: RefUnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,