use thiserror::Error;

/// A marker type for workflow registration errors

#[derive(Debug, Error)]

#[error("Failed to register workflow activity")]

pub struct WorkflowRegistrationError;

impl From<()> for WorkflowRegistrationError {

fn from(_: ()) -> Self {

WorkflowRegistrationError

}

}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]

pub enum ILLevel {

Low,

Medium,

High,

}

#[derive(Error, Debug)]

pub enum Error {

#[error("Unable to retrieve {level:?} IL for function at {func_start:#x}")]

MissingIL { level: ILLevel, func_start: u64 },

#[error("Unable to retrieve {level:?} SSA IL for function at {func_start:#x}")]

MissingSsaForm { level: ILLevel, func_start: u64 },

#[error("Unexpected LLIL operation at address {address:#x} (expected {expected})")]

UnexpectedLlilOperation { address: u64, expected: String },

#[error("Invalid selector at address {address:#x}")]

InvalidSelector { address: u64 },

#[error(transparent)]

WorkflowRegistrationFailed(#[from] WorkflowRegistrationError),

}