spru 0.1.0

Reusable components for the spru strategy and digital board game framework.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79

use std::{any, fmt, ops};

use crate::{
    common::error::{AnyError, PsuedoError},
    item::{self, IdT},
};

/// An error returned by the [item::Storage]
#[derive(Debug)]
pub struct Error {
    inner: AnyError,
    context: Option<Context>,
}

impl ops::Deref for Error {
    type Target = dyn std::error::Error;

    fn deref(&self) -> &Self::Target {
        self.as_error()
    }
}

impl Error {
    fn new<E: std::error::Error + Send + Sync + 'static>(error: E) -> Self {
        Self {
            inner: AnyError::new(error),
            context: None,
        }
    }

    pub(crate) fn with_context<T>(mut self, id: IdT<T>) -> Self {
        self.context = Some(Context {
            id: id.untyped(),
            type_name: any::type_name::<T>(),
        });
        self
    }
}

impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let Self { inner, context } = self;

        write!(f, "Item ")?;
        if let Some(context) = context {
            write!(f, " {context}")?;
        }
        write!(f, "not found: {inner}")?;

        Ok(())
    }
}

impl<E: std::error::Error + Send + Sync + 'static> From<E> for Error {
    fn from(value: E) -> Self {
        Self::new(value)
    }
}

impl PsuedoError for Error {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        std::error::Error::source(self.inner.as_error())
    }
}

#[derive(Debug)]
pub(crate) struct Context {
    id: item::Id,
    type_name: &'static str,
}

impl fmt::Display for Context {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let Self { id, type_name } = self;

        write!(f, "{id} ({type_name})")?;
        Ok(())
    }
}