From d9a6f27bc333587fad88b3bc1f53b370a016ccd0 Mon Sep 17 00:00:00 2001
From: Jisi Liu <jisi.liu@gmail.com>
Date: Fri, 6 Feb 2015 15:55:04 -0800
Subject: implement hashCode() for JavaNano maps.

---
 src/google/protobuf/compiler/javanano/javanano_map_field.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/google/protobuf/compiler/javanano/javanano_map_field.cc b/src/google/protobuf/compiler/javanano/javanano_map_field.cc
index c816fb3d..117c4f5c 100644
--- a/src/google/protobuf/compiler/javanano/javanano_map_field.cc
+++ b/src/google/protobuf/compiler/javanano/javanano_map_field.cc
@@ -175,6 +175,9 @@ GenerateEqualsCode(io::Printer* printer) const {
 
 void MapFieldGenerator::
 GenerateHashCodeCode(io::Printer* printer) const {
+  printer->Print(variables_,
+    "result = 31 * result +\n"
+    "    com.google.protobuf.nano.InternalNano.hashCode(this.$name$);\n");
 }
 
 }  // namespace javanano
-- 
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