Struct ProblemMeta 

pub struct ProblemMeta {
    pub slug: &'static str,
    pub version: &'static str,
    pub title: &'static str,
    pub status: u16,
    pub exit_code: u8,
}

Reusable per-variant problem-type metadata.

An implementing crate defines one ProblemMeta per error variant (slug, version, title, status, exit code) and converts it to a full ProblemDetails with ProblemMeta::into_details, keeping the URI/version/status/exit-code bookkeeping for that crate’s errors in one place — extending the enum means adding one match arm, not editing several parallel constructions.

Fields

slug: &'static str

Stable, URL-safe slug for the problem type.

version: &'static str

Version segment of the type URI (e.g. "v1"). Per-type, so one type can advance independently of the others.

title: &'static str

Short, stable title for the problem type.

status: u16

Numeric status class.

exit_code: u8

Process exit code emitted alongside the error.

Implementations

impl ProblemMeta

pub fn type_uri(&self) -> String

The stable, version-embedded problem-type URI for this metadata.

Derived as {ERROR_TYPE_BASE_URI}/{slug}/{version}. The version is the stability commitment: the meaning of a given URI never changes; a breaking change to a problem type ships a new version (e.g. /v2) rather than redefining the existing one.

Returns

The fully-qualified type URI for this metadata.

pub fn into_details( self, crate_name: &str, detail: impl Into<String>, ) -> ProblemDetails

Builds a ProblemDetails from this metadata, an owning crate name, and an occurrence-specific detail message.

Arguments

• crate_name - The implementing crate’s own name, e.g. env!("CARGO_PKG_NAME") evaluated at the call site (this macro must be invoked in the calling crate, not here, to expand correctly).
• detail - This-occurrence explanation, typically the error’s own Display string so the human and machine renderings never drift.

Returns

A ProblemDetails with exit_code pre-populated from this metadata; attach a suggested_fix/code_action with the with_* methods as needed.

Trait Implementations

impl Clone for ProblemMeta

fn clone(&self) -> ProblemMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ProblemMeta

impl Debug for ProblemMeta

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

Formats the value using the given formatter.