1 files changed, 12 insertions, 0 deletions
diff --git a/source/slang/slang-options.cpp b/source/slang/slang-options.cpp
index 7429db2fc..b17e35d69 100644
--- a/source/slang/slang-options.cpp
+++ b/source/slang/slang-options.cpp
@@ -3,6 +3,8 @@
 // Implementation of options parsing for `slangc` command line,
 // and also for API interface that takes command-line argument strings.
 
+#include "slang-options.h"
+
 #include "../../slang.h"
 
 #include "slang-compiler.h"
@@ -61,6 +63,16 @@ static SlangResult _parsePassThrough(const UnownedStringSlice& name, SlangPassTh
     return SLANG_FAIL;
 }
 
+UnownedStringSlice getPassThroughName(SlangPassThrough passThru)
+{
+#define SLANG_PASS_THROUGH_TYPE_TO_NAME(x, y) \
+    if (passThru == SLANG_PASS_THROUGH_##y) return UnownedStringSlice::fromLiteral(#x);
+
+    SLANG_PASS_THROUGH_TYPES(SLANG_PASS_THROUGH_TYPE_TO_NAME)
+
+    return UnownedStringSlice::fromLiteral("unknown");
+}
+
 struct OptionsParser
 {
     SlangSession*           session = nullptr;