Protect error handler fields with single lock

This avoids concurrency-related bugs when locks are acquired for too short a time and similar cases.
rust-lang · Sep 17, 2019 · 4cc5aaa · 4cc5aaa
1 parent 2a767ee
commit 4cc5aaa
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Showing 2 changed files with 207 additions and 135 deletions.
diff --git a/src/librustc/session/config/tests.rs b/src/librustc/session/config/tests.rs
@@ -87,7 +87,7 @@ fn test_can_print_warnings() {
         let registry = errors::registry::Registry::new(&[]);
         let (sessopts, _) = build_session_options_and_crate_config(&matches);
         let sess = build_session(sessopts, None, registry);
-        assert!(!sess.diagnostic().flags.can_emit_warnings);
+        assert!(!sess.diagnostic().can_emit_warnings());
     });
 
     syntax::with_default_globals(|| {
@@ -97,15 +97,15 @@ fn test_can_print_warnings() {
         let registry = errors::registry::Registry::new(&[]);
         let (sessopts, _) = build_session_options_and_crate_config(&matches);
         let sess = build_session(sessopts, None, registry);
-        assert!(sess.diagnostic().flags.can_emit_warnings);
+        assert!(sess.diagnostic().can_emit_warnings());
     });
 
     syntax::with_default_globals(|| {
         let matches = optgroups().parse(&["-Adead_code".to_string()]).unwrap();
         let registry = errors::registry::Registry::new(&[]);
         let (sessopts, _) = build_session_options_and_crate_config(&matches);
         let sess = build_session(sessopts, None, registry);
-        assert!(sess.diagnostic().flags.can_emit_warnings);
+        assert!(sess.diagnostic().can_emit_warnings());
     });
 }