Enum Attr 

#[repr(u8)]
pub enum Attr {
    Value(&'static str),
    Func(&'static str),
    Variant,
}

Default attribute types for configuring Default implementation.

Variants

Value(&'static str)

Use a literal value for the field default (converted via .into()).

Usage: #[facet(default::value = "hello")] Usage: #[facet(default::value = 42)]

Note: The type here is nominally &'static str but the plugin template uses @attr_args which captures the raw tokens, so any value works.

Func(&'static str)

Call a function to get the default value.

Usage: #[facet(default::func = my_default_fn)]

Note: The type here is nominally &'static str but the plugin template uses @attr_args which captures the raw tokens, so any path works.

Variant

Mark an enum variant as the default.

Usage: #[facet(default::variant)]

Trait Implementations

impl Clone for Attr

fn clone(&self) -> Attr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Attr

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

Formats the value using the given formatter.

impl<'ʄ> Facet<'ʄ> for Attr

const SHAPE: &'static Shape

The shape of this type, including: whether it’s a Struct, an Enum, something else?

impl PartialEq for Attr

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.