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