1#![allow(
2 clippy::blocks_in_conditions,
3 clippy::cast_lossless,
4 clippy::cast_possible_truncation,
5 clippy::enum_glob_use,
6 clippy::manual_find,
7 clippy::manual_let_else,
8 clippy::manual_map,
9 clippy::map_unwrap_or,
10 clippy::module_name_repetitions,
11 clippy::needless_pass_by_value,
12 clippy::range_plus_one,
13 clippy::single_match_else,
14 clippy::struct_field_names,
15 clippy::too_many_lines,
16 clippy::wrong_self_convention
17)]
18#![allow(unknown_lints, mismatched_lifetime_syntaxes)]
19
20extern crate proc_macro;
21
22mod ast;
23mod attr;
24mod expand;
25mod fallback;
26mod fmt;
27mod generics;
28mod prop;
29mod scan_expr;
30mod unraw;
31mod valid;
32
33use proc_macro::TokenStream;
34use proc_macro2::{Ident, Span};
35use quote::{ToTokens, TokenStreamExt as _};
36use syn::{parse_macro_input, DeriveInput};
37
38#[proc_macro_derive(Error, attributes(backtrace, error, from, source))]
39pub fn derive_error(input: TokenStream) -> TokenStream {
40 let input = match ::syn::parse::<DeriveInput>(input) {
::syn::__private::Ok(data) => data,
::syn::__private::Err(err) => {
return ::syn::__private::TokenStream::from(err.to_compile_error());
}
}parse_macro_input!(input as DeriveInput);
41 expand::derive(&input).into()
42}
43
44#[allow(non_camel_case_types)]
45struct private;
46
47impl ToTokens for private {
48 fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
49 tokens.append(Ident::new(
50 "__private17"concat!("__private", env!("CARGO_PKG_VERSION_PATCH")),
51 Span::call_site(),
52 ));
53 }
54}