commit 7926839cb8e9fdcc05eaa3028cedc761bc50ea2d
author David Tolnay <dtolnay@gmail.com> Sat Oct 13 19:55:48 2018 -0700
committer David Tolnay <dtolnay@gmail.com> Sat Oct 13 19:55:48 2018 -0700
tree 3c83660a60315434f2260fbfc24313a7b8a424c8
parent f1a1026336753a0e88af163c928b90ff2f70a1c7

Allow true/false as the name in a MetaNameValue

src/attr.rs

diff --git a/src/attr.rs b/src/attr.rs
index a07fa77..449e76e 100644
--- a/src/attr.rs
+++ b/src/attr.rs
@@ -618,7 +618,7 @@
         fn parse(input: ParseStream) -> Result<Self> {
             let ahead = input.fork();
 
-            if ahead.peek(Lit) {
+            if ahead.peek(Lit) && !(ahead.peek(LitBool) && ahead.peek2(Token![=])) {
                 input.parse().map(NestedMeta::Literal)
             } else if ahead.call(Ident::parse_any).is_ok() {
                 input.parse().map(NestedMeta::Meta)