tokn-headers 0.2.0-rc.2

Header schema, parsing, and persona utilities shared across tokn crates
Documentation 
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//! Errors produced by the headers crate.

use smol_str::SmolStr;
use thiserror::Error;

/// All errors that can be produced when parsing or building headers via the
/// schema layer.
#[derive(Debug, Error, Clone, PartialEq, Eq)]
pub enum Error {
  /// A required header was absent from the input map.
  #[error("required header missing: {name}")]
  MissingHeader { name: SmolStr },

  /// A header was present but its value did not match the expected shape.
  #[error("invalid value for header {name}: {value:?} ({message})")]
  InvalidValue {
    name: SmolStr,
    value: SmolStr,
    message: SmolStr,
  },
}