stak_engine/
error.rs

1use core::{
2    error::Error,
3    fmt::{self, Display, Formatter},
4};
5use stak_dynamic::DynamicError;
6use stak_r7rs::SmallError;
7use stak_vm::Exception;
8
9/// An engine error
10#[derive(Debug)]
11pub enum EngineError {
12    /// A dynamic primitive error.
13    Dynamic(DynamicError),
14    /// An R7RS-small error.
15    Small(SmallError),
16    /// A virtual machine error.
17    Vm(stak_vm::Error),
18}
19
20impl From<DynamicError> for EngineError {
21    fn from(error: DynamicError) -> Self {
22        Self::Dynamic(error)
23    }
24}
25
26impl From<SmallError> for EngineError {
27    fn from(error: SmallError) -> Self {
28        Self::Small(error)
29    }
30}
31
32impl From<stak_vm::Error> for EngineError {
33    fn from(error: stak_vm::Error) -> Self {
34        Self::Vm(error)
35    }
36}
37
38impl Exception for EngineError {
39    fn is_critical(&self) -> bool {
40        match self {
41            Self::Dynamic(error) => error.is_critical(),
42            Self::Small(error) => error.is_critical(),
43            Self::Vm(error) => error.is_critical(),
44        }
45    }
46}
47
48impl Error for EngineError {}
49
50impl Display for EngineError {
51    fn fmt(&self, formatter: &mut Formatter) -> fmt::Result {
52        match self {
53            Self::Dynamic(error) => write!(formatter, "{error}"),
54            Self::Small(error) => write!(formatter, "{error}"),
55            Self::Vm(error) => write!(formatter, "{error}"),
56        }
57    }
58}
stak_engine/error.rs

stak_engine/
error.rs
