Move invalidate_current_thread_spans to proc_macro2::extra

Author: dtolnay

src/extra.rs

@@ -7,6 +7,10 @@ use crate::marker::{ProcMacroAutoTraits, MARKER};
 use crate::Span;
 use core::fmt::{self, Debug};
 
+#[cfg(span_locations)]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "span-locations")))]
+pub use crate::imp::invalidate_current_thread_spans;
+
 /// An object that holds a [`Group`]'s `span_open()` and `span_close()` together
 /// in a more compact representation than holding those 2 spans individually.
 ///

src/lib.rs

@@ -171,10 +171,6 @@ use std::error::Error;
 #[cfg(procmacro2_semver_exempt)]
 use std::path::PathBuf;
 
-#[cfg(span_locations)]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "span-locations")))]
-pub use crate::imp::invalidate_current_thread_spans;
-
 #[cfg(span_locations)]
 #[cfg_attr(doc_cfg, doc(cfg(feature = "span-locations")))]
 pub use crate::location::LineColumn;

src/wrapper.rs

@@ -950,7 +950,7 @@ impl Debug for Literal {
 pub fn invalidate_current_thread_spans() {
     if inside_proc_macro() {
         panic!(
-            "proc_macro2::invalidate_current_thread_spans is not available in procedural macros"
+            "proc_macro2::extra::invalidate_current_thread_spans is not available in procedural macros"
         );
     } else {
         crate::fallback::invalidate_current_thread_spans();

tests/test.rs

@@ -775,7 +775,7 @@ fn test_invalidate_current_thread_spans() {
     let actual = format!("{:#?}", create_span());
     assert_eq!(actual, "bytes(3..4)");
 
-    proc_macro2::invalidate_current_thread_spans();
+    proc_macro2::extra::invalidate_current_thread_spans();
 
     let actual = format!("{:#?}", create_span());
     // Test that span offsets have been reset after the call
@@ -789,7 +789,7 @@ fn test_invalidate_current_thread_spans() {
 fn test_use_span_after_invalidation() {
     let span = create_span();
 
-    proc_macro2::invalidate_current_thread_spans();
+    proc_macro2::extra::invalidate_current_thread_spans();
 
     span.source_text();
 }