From a0f27fcd96c5bf2509ca88cca54f00b78f7b8bc5 Mon Sep 17 00:00:00 2001
From: temporal <temporal@630680e5-0e50-0410-840e-4b1c322b438d>
Date: Wed, 6 Aug 2008 01:12:21 +0000
Subject: Heuristically detect sub-messages when printing unknown fields.

Patch mostly written by Dilip Joseph <dilip.antony.joseph@gmail.com>.
---
 src/google/protobuf/unknown_field_set.cc | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'src/google/protobuf/unknown_field_set.cc')

diff --git a/src/google/protobuf/unknown_field_set.cc b/src/google/protobuf/unknown_field_set.cc
index 2f44901e..3d45002e 100644
--- a/src/google/protobuf/unknown_field_set.cc
+++ b/src/google/protobuf/unknown_field_set.cc
@@ -20,6 +20,10 @@
 
 #include <google/protobuf/unknown_field_set.h>
 #include <google/protobuf/stubs/stl_util-inl.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/io/zero_copy_stream.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+#include <google/protobuf/wire_format.h>
 
 namespace google {
 namespace protobuf {
@@ -57,6 +61,34 @@ void UnknownFieldSet::MergeFrom(const UnknownFieldSet& other) {
   }
 }
 
+bool UnknownFieldSet::MergeFromCodedStream(io::CodedInputStream* input) {
+
+  UnknownFieldSet other;
+  if (internal::WireFormat::SkipMessage(input, &other) &&
+                                  input->ConsumedEntireMessage()) {
+    MergeFrom(other);
+    return true;
+  } else {
+    return false;
+  }
+}
+
+bool UnknownFieldSet::ParseFromCodedStream(io::CodedInputStream* input) {
+  Clear();
+  return MergeFromCodedStream(input);
+}
+
+bool UnknownFieldSet::ParseFromZeroCopyStream(io::ZeroCopyInputStream* input) {
+  io::CodedInputStream coded_input(input);
+  return ParseFromCodedStream(&coded_input) &&
+    coded_input.ConsumedEntireMessage();
+}
+
+bool UnknownFieldSet::ParseFromArray(const void* data, int size) {
+  io::ArrayInputStream input(data, size);
+  return ParseFromZeroCopyStream(&input);
+}
+
 const UnknownField* UnknownFieldSet::FindFieldByNumber(int number) const {
   if (internal_ == NULL) return NULL;
 
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