diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index c34e4d5638..5a42b75b00 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -6578,24 +6578,6 @@ JSOpFromPropertyType(PropertyType propType)
     }
 }
 
-static GeneratorKind
-GeneratorKindFromPropertyType(PropertyType propType)
-{
-    if (propType == PropertyType::GeneratorMethod)
-        return StarGenerator;
-    if (propType == PropertyType::AsyncMethod)
-        return StarGenerator;
-    return NotGenerator;
-}
-
-static FunctionAsyncKind
-AsyncKindFromPropertyType(PropertyType propType)
-{
-    if (propType == PropertyType::AsyncMethod)
-        return AsyncFunction;
-    return SyncFunction;
-}
-
 template <typename ParseHandler>
 typename ParseHandler::Node
 Parser<ParseHandler>::classDefinition(YieldHandling yieldHandling,
@@ -9437,8 +9419,15 @@ Parser<ParseHandler>::methodDefinition(uint32_t preludeStart, PropertyType propT
         MOZ_CRASH("Parser: methodDefinition: unexpected property type");
     }
 
-    GeneratorKind generatorKind = GeneratorKindFromPropertyType(propType);
-    FunctionAsyncKind asyncKind = AsyncKindFromPropertyType(propType);
+    GeneratorKind generatorKind = (propType == PropertyType::GeneratorMethod ||
+                                   propType == PropertyType::AsyncMethod)
+                                  ? StarGenerator
+                                  : NotGenerator;
+
+    FunctionAsyncKind asyncKind = (propType == PropertyType::AsyncMethod)
+                                  ? AsyncFunction
+                                  : SyncFunction;
+
     YieldHandling yieldHandling = GetYieldHandling(generatorKind, asyncKind);
 
     Node pn = handler.newFunctionExpression();