1 use std::error;
2 use std::fmt;
3 
4 /// Errors that can occur during code generation.
5 #[derive(Clone, Debug, PartialEq, Eq)]
6 pub 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 
16 impl fmt::Display for Error {
fmt(&self, f: &mut fmt::Formatter) -> fmt::Result17     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
18         f.write_str(match *self {
19             Error::NoLayoutForOpaqueBlob => {
20                 "Tried to generate an opaque blob, but had no layout"
21             }
22             Error::InstantiationOfOpaqueType => {
23                 "Instantiation of opaque template type or partial template \
24                  specialization"
25             }
26         })
27     }
28 }
29 
30 impl error::Error for Error {}
31 
32 /// A `Result` of `T` or an error of `bindgen::codegen::error::Error`.
33 pub type Result<T> = ::std::result::Result<T, Error>;
34