Struct Origin 

pub struct Origin {
    pub column: u32,
    pub file: &'static str,
    pub krate: &'static str,
    pub line: u32,
    pub module: &'static str,
}

Where a message type is defined — automatic provenance captured by #[message], which emits the core location builtins (env!("CARGO_PKG_NAME"), module_path!, file!, line!, column!) for rustc to fill while compiling the defining crate.

Reachable on every message through Message::origin, so a subscriber can attribute or route a &dyn Message without naming the concrete type. All fields are &'static/u32, so Origin is Copy and stays no_std.

Fields

column: u32

Column of the definition (column!()).

file: &'static str

Source file of the definition (file!()).

krate: &'static str

The defining crate (CARGO_PKG_NAME); named krate because crate cannot be written as a raw identifier.

line: u32

Line of the definition (line!()).

module: &'static str

The defining module path (module_path!()), e.g. mycrate::sub.

Trait Implementations

impl Clone for Origin

fn clone(&self) -> Origin

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Origin

impl Debug for Origin

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

Formats the value using the given formatter.

impl Display for Origin

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

Compact one-line form: crate file:line:column (the module is omitted — it’s prefixed by the crate and rarely needed at a glance).

impl Eq for Origin

impl<'ʄ> Facet<'ʄ> for Origin

const SHAPE: &'static Shape

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

impl PartialEq for Origin

fn eq(&self, other: &Origin) -> 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.

impl StructuralPartialEq for Origin

impl TryFrom<&Origin> for String

Available on crate feature facet only.

Facet serializes Origin through its compact Display string (the proxy), matching the serde manifest. Serialize-only — provenance is never parsed back, so the reverse conversion is a stub.

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(origin: &Origin) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<String> for Origin

Available on crate feature facet only.

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(_: String) -> Result<Self, Self::Error>

Performs the conversion.