1 files changed, 124 insertions, 0 deletions
diff --git a/javanano/src/main/java/com/google/protobuf/nano/CodedOutputByteBufferNano.java b/javanano/src/main/java/com/google/protobuf/nano/CodedOutputByteBufferNano.java
index 37982b57..2777f34c 100644
--- a/javanano/src/main/java/com/google/protobuf/nano/CodedOutputByteBufferNano.java
+++ b/javanano/src/main/java/com/google/protobuf/nano/CodedOutputByteBufferNano.java
@@ -876,4 +876,128 @@ public final class CodedOutputByteBufferNano {
     // Note:  the right-shift must be arithmetic
     return (n << 1) ^ (n >> 63);
   }
+
+  static int computeFieldSize(int number, int type, Object object) {
+    switch (type) {
+      case InternalNano.TYPE_BOOL:
+        return computeBoolSize(number, (Boolean) object);
+      case InternalNano.TYPE_BYTES:
+        return computeBytesSize(number, (byte[]) object);
+      case InternalNano.TYPE_STRING:
+        return computeStringSize(number, (String) object);
+      case InternalNano.TYPE_FLOAT:
+        return computeFloatSize(number, (Float) object);
+      case InternalNano.TYPE_DOUBLE:
+        return computeDoubleSize(number, (Double) object);
+      case InternalNano.TYPE_ENUM:
+        return computeEnumSize(number, (Integer) object);
+      case InternalNano.TYPE_FIXED32:
+        return computeFixed32Size(number, (Integer) object);
+      case InternalNano.TYPE_INT32:
+        return computeInt32Size(number, (Integer) object);
+      case InternalNano.TYPE_UINT32:
+        return computeUInt32Size(number, (Integer) object);
+      case InternalNano.TYPE_SINT32:
+        return computeSInt32Size(number, (Integer) object);
+      case InternalNano.TYPE_SFIXED32:
+        return computeSFixed32Size(number, (Integer) object);
+      case InternalNano.TYPE_INT64:
+        return computeInt64Size(number, (Long) object);
+      case InternalNano.TYPE_UINT64:
+        return computeUInt64Size(number, (Long) object);
+      case InternalNano.TYPE_SINT64:
+        return computeSInt64Size(number, (Long) object);
+      case InternalNano.TYPE_FIXED64:
+        return computeFixed64Size(number, (Long) object);
+      case InternalNano.TYPE_SFIXED64:
+        return computeSFixed64Size(number, (Long) object);
+      case InternalNano.TYPE_MESSAGE:
+        return computeMessageSize(number, (MessageNano) object);
+      case InternalNano.TYPE_GROUP:
+        return computeGroupSize(number, (MessageNano) object);
+      default:
+        throw new IllegalArgumentException("Unknown type: " + type);
+    }
+  }
+
+  void writeField(int number, int type, Object value)
+      throws IOException {
+    switch (type) {
+      case InternalNano.TYPE_DOUBLE:
+        Double doubleValue = (Double) value;
+        writeDouble(number, doubleValue);
+        break;
+      case InternalNano.TYPE_FLOAT:
+        Float floatValue = (Float) value;
+        writeFloat(number, floatValue);
+        break;
+      case InternalNano.TYPE_INT64:
+        Long int64Value = (Long) value;
+        writeInt64(number, int64Value);
+        break;
+      case InternalNano.TYPE_UINT64:
+        Long uint64Value = (Long) value;
+        writeUInt64(number, uint64Value);
+        break;
+      case InternalNano.TYPE_INT32:
+        Integer int32Value = (Integer) value;
+        writeInt32(number, int32Value);
+        break;
+      case InternalNano.TYPE_FIXED64:
+        Long fixed64Value = (Long) value;
+        writeFixed64(number, fixed64Value);
+        break;
+      case InternalNano.TYPE_FIXED32:
+        Integer fixed32Value = (Integer) value;
+        writeFixed32(number, fixed32Value);
+        break;
+      case InternalNano.TYPE_BOOL:
+        Boolean boolValue = (Boolean) value;
+        writeBool(number, boolValue);
+        break;
+      case InternalNano.TYPE_STRING:
+        String stringValue = (String) value;
+        writeString(number, stringValue);
+        break;
+      case InternalNano.TYPE_BYTES:
+        byte[] bytesValue = (byte[]) value;
+        writeBytes(number, bytesValue);
+        break;
+      case InternalNano.TYPE_UINT32:
+        Integer uint32Value = (Integer) value;
+        writeUInt32(number, uint32Value);
+        break;
+      case InternalNano.TYPE_ENUM:
+        Integer enumValue = (Integer) value;
+        writeEnum(number, enumValue);
+        break;
+      case InternalNano.TYPE_SFIXED32:
+        Integer sfixed32Value = (Integer) value;
+        writeSFixed32(number, sfixed32Value);
+        break;
+      case InternalNano.TYPE_SFIXED64:
+        Long sfixed64Value = (Long) value;
+        writeSFixed64(number, sfixed64Value);
+        break;
+      case InternalNano.TYPE_SINT32:
+        Integer sint32Value = (Integer) value;
+        writeSInt32(number, sint32Value);
+        break;
+      case InternalNano.TYPE_SINT64:
+        Long sint64Value = (Long) value;
+        writeSInt64(number, sint64Value);
+        break;
+      case InternalNano.TYPE_MESSAGE:
+        MessageNano messageValue = (MessageNano) value;
+        writeMessage(number, messageValue);
+        break;
+      case InternalNano.TYPE_GROUP:
+        MessageNano groupValue = (MessageNano) value;
+        writeGroup(number, groupValue);
+        break;
+      default:
+        throw new IOException("Unknown type: " + type);
+    }
+  }
+
 }