bindgen/codegen/
error.rs

1use std::error;
2use std::fmt;
3
4/// Errors that can occur during code generation.
5#[derive(Clone, Debug, PartialEq, Eq)]
6pub(crate) enum Error {
7    /// Tried to generate an opaque blob for a type that did not have a layout.
8    NoLayoutForOpaqueBlob,
9
10    /// Tried to instantiate an opaque template definition, or a template
11    /// definition that is too difficult for us to understand (like a partial
12    /// template specialization).
13    InstantiationOfOpaqueType,
14
15    /// Function ABI is not supported.
16    UnsupportedAbi(&'static str),
17
18    /// The pointer type size does not match the target's pointer size.
19    InvalidPointerSize {
20        ty_name: String,
21        ty_size: usize,
22        ptr_size: usize,
23    },
24}
25
26impl fmt::Display for Error {
27    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
28        match self {
29            Error::NoLayoutForOpaqueBlob => {
30                "Tried to generate an opaque blob, but had no layout.".fmt(f)
31            }
32            Error::InstantiationOfOpaqueType => {
33                "Instantiation of opaque template type or partial template specialization."
34                    .fmt(f)
35            }
36            Error::UnsupportedAbi(abi) => {
37                 write!(
38                    f,
39                    "{abi} ABI is not supported by the configured Rust target."
40                )
41            }
42            Error::InvalidPointerSize { ty_name, ty_size, ptr_size } => {
43                write!(f, "The {ty_name} pointer type has size {ty_size} but the current target's pointer size is {ptr_size}.")
44            }
45        }
46    }
47}
48
49impl error::Error for Error {}
50
51/// A `Result` of `T` or an error of `bindgen::codegen::error::Error`.
52pub(crate) type Result<T> = ::std::result::Result<T, Error>;
bindgen/codegen/error.rs

bindgen/codegen/
error.rs
