[clang] 5e50f47 - [AST] Add clarification comment

[Stephen Kelly via cfe-commits]

Author: Stephen Kelly
Date: 2021-04-22T12:51:25+01:00
New Revision: 5e50f473d9597e8d14bda2f8659f512376ed9027

URL: https://github.com/llvm/llvm-project/commit/5e50f473d9597e8d14bda2f8659f512376ed9027
DIFF: https://github.com/llvm/llvm-project/commit/5e50f473d9597e8d14bda2f8659f512376ed9027.diff

LOG: [AST] Add clarification comment

Added: 
    

Modified: 
    clang/include/clang/Tooling/NodeIntrospection.h

Removed: 
    


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diff  --git a/clang/include/clang/Tooling/NodeIntrospection.h b/clang/include/clang/Tooling/NodeIntrospection.h
index a04c08823339..9fe10c659243 100644
--- a/clang/include/clang/Tooling/NodeIntrospection.h
+++ b/clang/include/clang/Tooling/NodeIntrospection.h
@@ -67,6 +67,10 @@ struct RangeLessThan {
 
 } // namespace internal
 
+// Note that this container stores unique results in a deterministic, but
+// unspecified order.  Clients which desire a particular order, such as
+// alphabetical, should sort results after retrieval, because the order
+// is dependent on how the LocationCalls are formatted.
 template <typename T, typename U>
 using UniqueMultiMap = std::set<std::pair<T, U>, internal::RangeLessThan>;