Fixed "fallthrough annotation does not directly precede switch label" warning in
case when [[clang::fallthrough]]; is used in a method of a local class.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178543 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index 9993b48..00d3c47 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -817,6 +817,10 @@
return true;
}
+ // We don't want to traverse local type declarations. We analyze their
+ // methods separately.
+ bool TraverseDecl(Decl *D) { return true; }
+
private:
static const AttributedStmt *asFallThroughAttr(const Stmt *S) {
diff --git a/test/SemaCXX/switch-implicit-fallthrough-regression.cpp b/test/SemaCXX/switch-implicit-fallthrough-regression.cpp
new file mode 100644
index 0000000..aec3769
--- /dev/null
+++ b/test/SemaCXX/switch-implicit-fallthrough-regression.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -Wimplicit-fallthrough %s
+
+void f() {
+ class C {
+ void f(int x) {
+ switch (x) {
+ case 0:
+ x++;
+ [[clang::fallthrough]]; // expected-no-diagnostics
+ case 1:
+ x++;
+ break;
+ }
+ }
+ };
+}
+
