err_tools/
lib.rs

1use std::fmt::{Debug, Display};
2use thiserror::*;
3
4#[derive(Error, Debug, Clone, PartialEq)]
5#[error("{} ({})",.e,.s)]
6pub struct SWrap<E: Debug + Display> {
7    e: E,
8    s: &'static str,
9}
10
11#[derive(Error, Debug, Clone, PartialEq)]
12#[error("{} ({})",.e,.s)]
13pub struct SgWrap<E: Debug + Display> {
14    e: E,
15    s: String,
16}
17
18#[derive(Error, Debug, Clone, PartialEq)]
19#[error("{}",.0)]
20pub struct SError(pub &'static str);
21#[derive(Error, Debug, Clone, PartialEq)]
22#[error("{}",.0)]
23pub struct SgError(pub String);
24
25pub fn e_str<T>(s: &'static str) -> anyhow::Result<T> {
26    Err(SError(s).into())
27}
28
29pub fn e_string<T>(s: String) -> anyhow::Result<T> {
30    Err(SgError(s).into())
31}
32pub trait OpError: Sized {
33    type V;
34    fn op_err(self) -> Option<Self::V>;
35    fn e_str(self, s: &'static str) -> anyhow::Result<Self::V> {
36        self.op_err().ok_or(SError(s).into())
37    }
38    fn e_string(self, s: String) -> anyhow::Result<Self::V> {
39        self.op_err().ok_or(SgError(s).into())
40    }
41}
42
43impl<V> OpError for Option<V> {
44    type V = V;
45    fn op_err(self) -> Self {
46        self
47    }
48}
49
50pub trait ResError: Sized {
51    type V;
52    type E: Debug + Display + Send + Sync + 'static;
53    fn res_err(self) -> Result<Self::V, Self::E>;
54    fn e_str(self, s: &'static str) -> anyhow::Result<Self::V> {
55        self.res_err().map_err(|e| SWrap { s, e }.into())
56    }
57    fn e_string(self, s: String) -> anyhow::Result<Self::V> {
58        self.res_err().map_err(|e| SgWrap { s, e }.into())
59    }
60}
61
62impl<T, E: Debug + Display + Sync + Send + 'static> ResError for Result<T, E> {
63    type V = T;
64    type E = E;
65    fn res_err(self) -> Self {
66        self
67    }
68}
err_tools/lib.rs

err_tools/
lib.rs
