protoflow_core/
block_error.rs

1// This is free and unencumbered software released into the public domain.
2
3use crate::{
4    prelude::{fmt, Box, Result, String, ToString},
5    PortError,
6};
7
8#[cfg(feature = "std")]
9extern crate std;
10
11pub type BlockResult<T = ()> = Result<T, BlockError>;
12
13#[derive(Debug)]
14pub enum BlockError {
15    Terminated,
16    PortError(PortError),
17    Other(String),
18    #[cfg(feature = "std")]
19    Panic(Box<dyn std::any::Any + Send>),
20}
21
22impl fmt::Display for BlockError {
23    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
24        match self {
25            Self::Terminated => write!(f, "Execution terminated"),
26            Self::PortError(e) => write!(f, "{}", e),
27            Self::Other(message) => write!(f, "{}", message),
28            #[cfg(feature = "std")]
29            Self::Panic(e) => write!(f, "Panic: {:?}", e),
30        }
31    }
32}
33
34#[cfg(feature = "std")]
35impl std::error::Error for BlockError {}
36
37#[cfg(feature = "std")]
38impl From<std::io::Error> for BlockError {
39    fn from(error: std::io::Error) -> Self {
40        Self::Other(error.to_string())
41    }
42}
43
44#[cfg(feature = "std")]
45impl From<Box<dyn std::any::Any + Send>> for BlockError {
46    fn from(error: Box<dyn std::any::Any + Send>) -> Self {
47        Self::Panic(error)
48    }
49}
50
51impl From<PortError> for BlockError {
52    fn from(error: PortError) -> Self {
53        Self::PortError(error)
54    }
55}
protoflow_core/block_error.rs

protoflow_core/
block_error.rs
