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Fix compat with current nightly

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This commit is contained in:
Alex Crichton
2018-04-26 19:12:56 -07:00
parent 6d5ebaf5ac
commit b7bbcf5ea9
2 changed files with 21 additions and 11 deletions
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18
crates/backend/src/ast.rs
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@ -1,3 +1,4 @@
use proc_macro2::TokenTree;
use quote::{ToTokens, Tokens};
use shared;
use syn;
@ -757,7 +758,16 @@ impl BindgenAttrs {
Some(i) => i,
None => return BindgenAttrs::default(),
};
syn::parse(attrs.remove(pos).tts.into()).expect("malformed #[wasm_bindgen] attribute")
let mut tts = attrs.remove(pos).tts.into_iter();
let tt = match tts.next() {
Some(TokenTree::Group(d)) => d.stream(),
Some(_) => panic!("malformed #[wasm_bindgen] attribute"),
None => return BindgenAttrs::default(),
};
if tts.next().is_some() {
panic!("malformed #[wasm_bindgen] attribute");
}
syn::parse(tt.into()).expect("malformed #[wasm_bindgen] attribute")
}
fn module(&self) -> Option<&str> {
@ -859,11 +869,11 @@ impl BindgenAttrs {
impl syn::synom::Synom for BindgenAttrs {
named!(parse -> Self, alt!(
do_parse!(
opts: parens!(call!(
opts: call!(
syn::punctuated::Punctuated::<_, syn::token::Comma>::parse_terminated
)) >>
) >>
(BindgenAttrs {
attrs: opts.1.into_iter().collect(),
attrs: opts.into_iter().collect(),
})
) => { |s| s }
|