fixing bugs

src/capnp/InputStreamMessageReader.java

@@ -26,20 +26,26 @@ public class InputStreamMessageReader {
 
     static ByteBuffer makeByteBuffer(byte[] bytes) {
         ByteBuffer result = ByteBuffer.wrap(bytes);
-        result.order(ByteOrder.LITTLE_ENDIAN);
+
+        // something odd is happening here.
+        //        result.order(ByteOrder.LITTLE_ENDIAN);
         return result;
     }
 
     public static MessageReader create(InputStream is) throws IOException {
         ByteBuffer firstWord = makeByteBuffer(readExact(is, 8));
 
-        int segmentCount = 1 + firstWord.getInt();
+        int segmentCount = 1 + firstWord.getInt(0);
+
+        System.out.println("segmentCount = " + segmentCount);
 
         int segment0Size = 0;
         if (segmentCount > 0) {
             segment0Size = firstWord.getInt(1);
         }
 
+        System.out.println("segment0Size = " + segment0Size);
+
         int totalWords = segment0Size;
 
         if (segmentCount > 512) {

src/capnp/StructPointer.java

@@ -2,18 +2,19 @@ package capnp;
 
 import java.nio.ByteBuffer;
 
-class StructPointer extends WirePointer {
+class StructPointer{
+    public WirePointer ptr;
 
-    public StructPointer(ByteBuffer buffer, int buffer_offset) {
-        super(buffer, buffer_offset);
+    public StructPointer(WirePointer ptr) {
+        this.ptr = ptr;
     }
 
     public short dataSize() {
-        return this.buffer.getShort(this.buffer_offset * 4 + 2);
+        return this.ptr.buffer.getShort(this.ptr.buffer_offset * 4 + 2);
     }
 
     public short ptrCount() {
-        return this.buffer.getShort(this.buffer_offset * 4 + 3);
+        return this.ptr.buffer.getShort(this.ptr.buffer_offset * 4 + 3);
     }
 
     public int wordSize() {

src/capnp/WireHelpers.java

@@ -9,7 +9,7 @@ class WireHelpers {
         // TODO error handling
 
         WordPointer ptr = ref.target();
-        StructPointer structPtr = (StructPointer)ref;
+        StructPointer structPtr = new StructPointer(ref);
         int dataSizeWords = structPtr.dataSize();
 
         return new StructReader(segment,
@@ -44,7 +44,7 @@ class WireHelpers {
             // TODO bounds check
 
             int size = tag.inlineCompositeListElementCount();
-            StructPointer structPtr = (StructPointer)tag;
+            StructPointer structPtr = new StructPointer(tag);
             int wordsPerElement = structPtr.wordSize();
 
             // TODO check that elemements do not overrun word count