gate it behind proc-marco feature

wtdcode · wtdcode · commit 1dbb2a7c62cd · 2025-05-18T00:43:18.000+08:00
diff --git a/src/fallback.rs b/src/fallback.rs
@@ -664,7 +664,7 @@ impl Span {
     }
 }
 
-#[cfg(not(wrap_proc_macro))]
+#[cfg(all(not(wrap_proc_macro), feature = "proc-macro"))]
 impl From<proc_macro::Span> for crate::Span {
     fn from(_: proc_macro::Span) -> Self {
         crate::Span::_new(Span::call_site())

Original file line number	Diff line number	Diff line change
`@@ -664,7 +664,7 @@ impl Span {`
`664`	`664`	`}`
`665`	`665`	`}`
`666`	`666`
`667`		`-#[cfg(not(wrap_proc_macro))]`
	`667`	`+#[cfg(all(not(wrap_proc_macro), feature = "proc-macro"))]`
`668`	`668`	`impl From<proc_macro::Span> for crate::Span {`
`669`	`669`	`fn from(_: proc_macro::Span) -> Self {`
`670`	`670`	`crate::Span::_new(Span::call_site())`