Public declaration syntax from forge-rs/crates/forge-health/src/error.rs
Original source SHA-256: 42e102e2cf520679ef5000973df61705d4bc60e3106698c2d751989e2d1c7eb4
Function bodies and constant values are omitted. This is not the complete implementation.

Source line 37
#[derive(Debug, Error)]
pub enum ForgeHealthError {
    /// An invalid lifecycle state transition was attempted.
    ///
    /// The ANVIL lifecycle state machine defines exactly which transitions are
    /// valid from each state. This error is returned when a transition is
    /// attempted that violates the state machine rules.
    ///
    /// See ANVIL Spec section 13.2 -- Lifecycle State Machine
    /// for the complete transition table.
    #[error("invalid lifecycle transition from {from} to {to}: {reason} (see ANVIL Spec section 5.1, Appendix B)")]
    InvalidTransition {
        /// The current lifecycle state.
        from: LifecycleState,
        /// The target state that was attempted.
        to: LifecycleState,
        /// A human-readable explanation of why this transition is invalid.
        reason: String,
    },

    /// A lifecycle operation was attempted on a state that does not support it.
    ///
    /// For example, attempting to resume an agent that is in the Terminated
    /// state, or performing any operation on a terminal state.
    #[error("invalid operation on lifecycle state {state}: {reason}")]
    InvalidState {
        /// The current lifecycle state where the operation was attempted.
        state: LifecycleState,
        /// A human-readable explanation of why this operation is invalid.
        reason: String,
    },

    /// A health monitoring operation failed.
    ///
    /// This covers failures in health check evaluation, threshold configuration,
    /// or profile update operations.
    #[error("health monitor error: {reason}")]
    MonitorError {
        /// A human-readable explanation of what went wrong.
        reason: String,
    },
}

Source line 80
pub type ForgeHealthResult<T> = Result<T, ForgeHealthError>;