Make blocks.Block an interface.

License: MIT
Signed-off-by: Kevin Atkinson <k@kevina.org>

block_generator.go

@@ -10,13 +10,13 @@ type BlockGenerator struct {
 	seq int
 }
 
-func (bg *BlockGenerator) Next() *blocks.Block {
+func (bg *BlockGenerator) Next() blocks.Block {
 	bg.seq++
 	return blocks.NewBlock([]byte(string(bg.seq)))
 }
 
-func (bg *BlockGenerator) Blocks(n int) []*blocks.Block {
-	blocks := make([]*blocks.Block, 0)
+func (bg *BlockGenerator) Blocks(n int) []blocks.Block {
+	blocks := make([]blocks.Block, 0)
 	for i := 0; i < n; i++ {
 		b := bg.Next()
 		blocks = append(blocks, b)