1 files changed, 10 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/java/java_helpers.cc b/src/google/protobuf/compiler/java/java_helpers.cc
index 8469740f..d8ac2db3 100644
--- a/src/google/protobuf/compiler/java/java_helpers.cc
+++ b/src/google/protobuf/compiler/java/java_helpers.cc
@@ -43,6 +43,8 @@
 #include <google/protobuf/wire_format.h>
 #include <google/protobuf/stubs/strutil.h>
 #include <google/protobuf/stubs/substitute.h>
+
+
 #include <google/protobuf/stubs/hash.h>  // for hash<T *>
 
 namespace google {
@@ -167,6 +169,14 @@ string UniqueFileScopeIdentifier(const Descriptor* descriptor) {
   return "static_" + StringReplace(descriptor->full_name(), ".", "_", true);
 }
 
+string CamelCaseFieldName(const FieldDescriptor* field) {
+  string fieldName = UnderscoresToCamelCase(field);
+  if ('0' <= fieldName[0] && fieldName[0] <= '9') {
+    return '_' + fieldName;
+  }
+  return fieldName;
+}
+
 string StripProto(const string& filename) {
   if (HasSuffixString(filename, ".protodevel")) {
     return StripSuffixString(filename, ".protodevel");