1#![allow(
2 clippy::blocks_in_conditions,
3 clippy::cast_lossless,
4 clippy::cast_possible_truncation,
5 clippy::enum_glob_use,
6 clippy::expl_impl_clone_on_copy, clippy::manual_find,
8 clippy::manual_let_else,
9 clippy::manual_map,
10 clippy::map_unwrap_or,
11 clippy::module_name_repetitions,
12 clippy::needless_pass_by_value,
13 clippy::range_plus_one,
14 clippy::single_match_else,
15 clippy::struct_field_names,
16 clippy::too_many_lines,
17 clippy::wrong_self_convention
18)]
19#![allow(unknown_lints, mismatched_lifetime_syntaxes)]
20
21extern crate proc_macro;
22
23mod ast;
24mod attr;
25mod expand;
26mod fallback;
27mod fmt;
28mod generics;
29mod prop;
30mod scan_expr;
31mod unraw;
32mod valid;
33
34use proc_macro::TokenStream;
35use proc_macro2::{Ident, Span};
36use quote::{ToTokens, TokenStreamExt as _};
37use syn::{parse_macro_input, DeriveInput};
38
39#[proc_macro_derive(Error, attributes(backtrace, error, from, source))]
40pub fn derive_error(input: TokenStream) -> TokenStream {
41 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);
42 expand::derive(&input).into()
43}
44
45#[allow(non_camel_case_types)]
46struct private;
47
48impl ToTokens for private {
49 fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
50 tokens.append(Ident::new(
51 "__private18"concat!("__private", env!("CARGO_PKG_VERSION_PATCH")),
52 Span::call_site(),
53 ));
54 }
55}