1 files changed, 0 insertions, 79 deletions
diff --git a/branch_node.go b/branch_node.go
index 58ab5a5..a5bd071 100644
--- a/branch_node.go
+++ b/branch_node.go
@@ -10,86 +10,7 @@ const (
 	dupNode = 0x04
 )
 
-// branchNode represents a node on a branch page.
-type branchNode struct {
-	pgno    uint32
-	flags   uint16
-	keySize uint16
-	data    uintptr // Pointer to the beginning of the data.
-}
-
 // key returns a byte slice that of the key data.
 func (n *branchNode) key() []byte {
 	return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[:n.keySize]
 }
-
-func (n *branchNode) size() int {
-	return 0 // TODO: offsetof(MDB_node, mn_data)
-}
-
-// TODO: #define INDXSIZE(k)	 (NODESIZE + ((k) == NULL ? 0 : (k)->mv_size))
-// TODO: #define LEAFSIZE(k, d)	 (NODESIZE + (k)->mv_size + (d)->mv_size)
-// TODO: #define NODEPTR(p, i)	 ((MDB_node *)((char *)(p) + (p)->mp_ptrs[i]))
-// TODO: #define NODEKEY(node)	 (void *)((node)->mn_data)
-// TODO: #define NODEDATA(node)	 (void *)((char *)(node)->mn_data + (node)->mn_ksize)
-// TODO: #define NODEPGNO(node)  ((node)->mn_lo | ((pgno_t) (node)->mn_hi << 16) | (PGNO_TOPWORD ? ((pgno_t) (node)->mn_flags << PGNO_TOPWORD) : 0))
-// TODO: #define SETPGNO(node,pgno)	do { (node)->mn_lo = (pgno) & 0xffff; (node)->mn_hi = (pgno) >> 16; if (PGNO_TOPWORD) (node)->mn_flags = (pgno) >> PGNO_TOPWORD; } while(0)
-// TODO: #define NODEDSZ(node)	 ((node)->mn_lo | ((unsigned)(node)->mn_hi << 16))
-// TODO: #define SETDSZ(node,size)	do { (node)->mn_lo = (size) & 0xffff; (node)->mn_hi = (size) >> 16;} while(0)
-// TODO: #define NODEKSZ(node)	 ((node)->mn_ksize)
-
-// TODO: #define LEAF2KEY(p, i, ks)	((char *)(p) + PAGEHDRSZ + ((i)*(ks)))
-
-// TODO: #define MDB_GET_KEY(node, keyptr)	{ if ((keyptr) != NULL) { (keyptr)->mv_size = NODEKSZ(node); (keyptr)->mv_data = NODEKEY(node); } }
-// TODO: #define MDB_GET_KEY2(node, key)	{ key.mv_size = NODEKSZ(node); key.mv_data = NODEKEY(node); }
-
-// Compact the main page after deleting a node on a subpage.
-// @param[in] mp The main page to operate on.
-// @param[in] indx The index of the subpage on the main page.
-func (n *node) shrink(index int) {
-	/*
-		MDB_node *node;
-		MDB_page *sp, *xp;
-		char *base;
-		int nsize, delta;
-		indx_t		 i, numkeys, ptr;
-
-		node = NODEPTR(mp, indx);
-		sp = (MDB_page *)NODEDATA(node);
-		delta = SIZELEFT(sp);
-		xp = (MDB_page *)((char *)sp + delta);
-
-		// shift subpage upward
-		if (IS_LEAF2(sp)) {
-			nsize = NUMKEYS(sp) * sp->mp_pad;
-			if (nsize & 1)
-				return;		// do not make the node uneven-sized
-			memmove(METADATA(xp), METADATA(sp), nsize);
-		} else {
-			int i;
-			numkeys = NUMKEYS(sp);
-			for (i=numkeys-1; i>=0; i--)
-				xp->mp_ptrs[i] = sp->mp_ptrs[i] - delta;
-		}
-		xp->mp_upper = sp->mp_lower;
-		xp->mp_lower = sp->mp_lower;
-		xp->mp_flags = sp->mp_flags;
-		xp->mp_pad = sp->mp_pad;
-		COPY_PGNO(xp->mp_pgno, mp->mp_pgno);
-
-		nsize = NODEDSZ(node) - delta;
-		SETDSZ(node, nsize);
-
-		// shift lower nodes upward
-		ptr = mp->mp_ptrs[indx];
-		numkeys = NUMKEYS(mp);
-		for (i = 0; i < numkeys; i++) {
-			if (mp->mp_ptrs[i] <= ptr)
-				mp->mp_ptrs[i] += delta;
-		}
-
-		base = (char *)mp + mp->mp_upper;
-		memmove(base + delta, base, ptr - mp->mp_upper + NODESIZE + NODEKSZ(node));
-		mp->mp_upper += delta;
-	*/
-}