1 files changed, 16 insertions, 0 deletions
diff --git a/clang-tools-extra/clang-tidy/utils/Matchers.h b/clang-tools-extra/clang-tidy/utils/Matchers.h
index 834c06b2861..0ab5ec712e4 100644
--- a/clang-tools-extra/clang-tidy/utils/Matchers.h
+++ b/clang-tools-extra/clang-tidy/utils/Matchers.h
@@ -23,6 +23,22 @@ AST_MATCHER(QualType, isExpensiveToCopy) {
   return IsExpensive && *IsExpensive;
 }
 
+AST_MATCHER(FunctionDecl, isNoThrow) {
+  const auto *FnTy = Node.getType()->getAs<FunctionProtoType>();
+  
+  // If the function does not have a prototype, then it is assumed to be a
+  // throwing function (as it would if the function did not have any exception
+  // specification).
+  if (!FnTy)
+    return false;
+
+  // Assume the best for any unresolved exception specification.
+  if (isUnresolvedExceptionSpec(FnTy->getExceptionSpecType()))
+    return true;
+
+  return FnTy->isNothrow(Node.getASTContext());
+}
+
 } // namespace matchers
 } // namespace tidy
 } // namespace clang