1 files changed, 55 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/serialization/PathFragmentCodec.java b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/PathFragmentCodec.java
new file mode 100644
index 0000000000..7438f6de0b
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/PathFragmentCodec.java
@@ -0,0 +1,55 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.lib.skyframe.serialization;
+
+import com.google.devtools.build.lib.vfs.PathFragment;
+import com.google.protobuf.CodedInputStream;
+import com.google.protobuf.CodedOutputStream;
+import java.io.IOException;
+
+/** Custom serialization for {@link PathFragment}s. */
+class PathFragmentCodec implements ObjectCodec<PathFragment> {
+
+  private final ObjectCodec<String> stringCodec = new FastStringCodec();
+
+  @Override
+  public Class<PathFragment> getEncodedClass() {
+    return PathFragment.class;
+  }
+
+  @Override
+  public void serialize(PathFragment pathFragment, CodedOutputStream codedOut)
+      throws IOException, SerializationException {
+    codedOut.writeInt32NoTag(pathFragment.getDriveLetter());
+    codedOut.writeBoolNoTag(pathFragment.isAbsolute());
+    codedOut.writeInt32NoTag(pathFragment.segmentCount());
+    for (int i = 0; i < pathFragment.segmentCount(); i++) {
+      stringCodec.serialize(pathFragment.getSegment(i), codedOut);
+    }
+  }
+
+  @Override
+  public PathFragment deserialize(CodedInputStream codedIn)
+      throws IOException, SerializationException {
+    char driveLetter = (char) codedIn.readInt32();
+    boolean isAbsolute = codedIn.readBool();
+    int segmentCount = codedIn.readInt32();
+    String[] segments = new String[segmentCount];
+    for (int i = 0; i < segmentCount; i++) {
+      segments[i] = stringCodec.deserialize(codedIn);
+    }
+    return PathFragment.create(driveLetter, isAbsolute, segments);
+  }
+}