[clang-tidy] Export the abseil duration inverse lookup function, NFC

This allows other tools to use this function.

llvm-svn: 350133

2 files changed, 7 insertions, 2 deletions

diff --git a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.cpp b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.cpp
index a7254779936..8bf4c0d8428 100644
--- a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.cpp
+++ b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.cpp
@@ -37,8 +37,7 @@ truncateIfIntegral(const FloatingLiteral &FloatLiteral) {
   return llvm::None;
 }
 
-/// Given a `Scale` return the inverse functions for it.
-static const std::pair<llvm::StringRef, llvm::StringRef> &
+const std::pair<llvm::StringRef, llvm::StringRef> &
 getInverseForScale(DurationScale Scale) {
   static const llvm::IndexedMap<std::pair<llvm::StringRef, llvm::StringRef>,
                                 DurationScale2IndexFunctor>
diff --git a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
index 339511f9ac5..d0004d1c09c 100644
--- a/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
+++ b/clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
@@ -63,6 +63,12 @@ simplifyDurationFactoryArg(const ast_matchers::MatchFinder::MatchResult &Result,
 /// return its `DurationScale`, or `None` if a match is not found.
 llvm::Optional<DurationScale> getScaleForInverse(llvm::StringRef Name);
 
+/// Given a `Scale` return the fully qualified inverse functions for it.
+/// The first returned value is the inverse for `double`, and the second
+/// returned value is the inverse for `int64`.
+const std::pair<llvm::StringRef, llvm::StringRef> &
+getInverseForScale(DurationScale Scale);
+
 /// Assuming `Node` has type `double` or `int` representing a time interval of
 /// `Scale`, return the expression to make it a suitable `Duration`.
 std::string rewriteExprFromNumberToDuration(