bpf_script/
error.rs

1use thiserror::Error;
2
3#[derive(Error, Debug)]
4pub enum Error {
5    #[error("{message:?} (Line {line:?})")]
6    Semantics { line: u32, message: String },
7
8    #[error("error converting integer")]
9    IntegerConversion(#[from] std::num::TryFromIntError),
10
11    #[error("syntax error")]
12    Syntax(#[from] peginator::ParseError),
13
14    #[error("failed to add btf type")]
15    BtfTypeConversion(#[from] btf::Error),
16
17    #[error("type conversion not implemented")]
18    NoConversion,
19
20    #[error("no type with that id")]
21    InvalidTypeId,
22
23    #[error("no type with that name")]
24    InvalidTypeName,
25
26    #[error("internal error occurred that shouldn't be possible")]
27    InternalError,
28}
29
30pub type Result<T> = std::result::Result<T, Error>;
31
32pub trait SemanticsErrorContext {
33    type InnerType;
34
35    fn context(&self, line: u32, message: &str) -> Result<Self::InnerType>;
36}
37
38impl<T: Copy> SemanticsErrorContext for std::option::Option<T> {
39    type InnerType = T;
40
41    fn context(&self, line: u32, message: &str) -> Result<T> {
42        self.ok_or(Error::Semantics {
43            line,
44            message: message.to_string(),
45        })
46    }
47}
48
49impl<T: Copy, E: Copy> SemanticsErrorContext for std::result::Result<T, E> {
50    type InnerType = T;
51
52    fn context(&self, line: u32, message: &str) -> Result<T> {
53        self.or(Err(Error::Semantics {
54            line,
55            message: message.to_string(),
56        }))
57    }
58}
bpf_script/error.rs

bpf_script/
error.rs
