Make Spanned available without procmacro2_semver_exempt
diff --git a/src/lib.rs b/src/lib.rs
index c448a98..7d7c0f8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -98,7 +98,7 @@
#[cfg(feature = "parsing")]
mod tt;
-#[cfg(all(procmacro2_semver_exempt, feature = "parsing", feature = "printing"))]
+#[cfg(all(feature = "parsing", feature = "printing"))]
pub mod spanned;
mod gen {
diff --git a/src/spanned.rs b/src/spanned.rs
index 87d833c..a2fe6d3 100644
--- a/src/spanned.rs
+++ b/src/spanned.rs
@@ -11,6 +11,7 @@
where
T: ToTokens,
{
+ #[cfg(procmacro2_semver_exempt)]
fn span(&self) -> Span {
let mut tokens = Tokens::new();
self.to_tokens(&mut tokens);
@@ -29,4 +30,19 @@
}
span
}
+
+ #[cfg(not(procmacro2_semver_exempt))]
+ fn span(&self) -> Span {
+ let mut tokens = Tokens::new();
+ self.to_tokens(&mut tokens);
+ let token_stream = TokenStream::from(tokens);
+ let mut iter = token_stream.into_iter();
+
+ // We can't join spans without procmacro2_semver_exempt so just grab the
+ // first one.
+ match iter.next() {
+ Some(tt) => tt.span,
+ None => Span::call_site(),
+ }
+ }
}