bendecode/
error.rs

1use std::{error, fmt, result};
2
3pub type Result<T> = result::Result<T, Error>;
4
5#[derive(Debug, PartialEq, Eq)]
6pub enum Error {
7    RequiredFieldNotFound {
8        name: &'static str,
9    },
10    InvalidFieldType {
11        optional: bool,
12        name: &'static str,
13        found: &'static str,
14        required: &'static str,
15    },
16    InvalidTokenFound {
17        found: char,
18        expected: &'static str,
19        index: usize,
20    },
21    NoEndMarker {
22        found: char,
23        index: usize,
24    },
25    WrongStringLength {
26        length: usize,
27        index: usize,
28    },
29    NoValueForKey {
30        key: String,
31        index: usize,
32    },
33}
34
35impl fmt::Display for Error {
36    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
37        match self {
38            Self::RequiredFieldNotFound { name } => {
39                writeln!(f, "required field {name} was not found in given file")
40            }
41            Self::InvalidFieldType {
42                optional,
43                name,
44                found,
45                required,
46            } => writeln!(
47                f,
48                "{req} filed {name} has invalid type, required: {required}, found: {found}",
49                req = if *optional { "Optional" } else { "Required" }
50            ),
51            Self::InvalidTokenFound {
52                found,
53                expected,
54                index,
55            } => writeln!(
56                f,
57                "invalid token found at index {index}, expected {expected}, found: {found}"
58            ),
59            Self::NoEndMarker { found, index } => {
60                writeln!(f, "The marker {found} at index {index} has no end marker")
61            }
62            Self::WrongStringLength { length, index } => writeln!(
63                f,
64                "The string at index {index} has an invalid length {length}"
65            ),
66            Self::NoValueForKey { key, index } => {
67                writeln!(f, "The key {key} at index {index} has no value")
68            }
69        }
70    }
71}
72
73impl error::Error for Error {}
bendecode/error.rs

bendecode/
error.rs
