beginnings of a bitswap refactor

offline.go

@@ -23,10 +23,10 @@ func NewOfflineExchange() exchange.Interface {
 type offlineExchange struct {
 }
 
-// Block returns nil to signal that a block could not be retrieved for the
+// GetBlock returns nil to signal that a block could not be retrieved for the
 // given key.
 // NB: This function may return before the timeout expires.
-func (_ *offlineExchange) Block(context.Context, u.Key) (*blocks.Block, error) {
+func (_ *offlineExchange) GetBlock(context.Context, u.Key) (*blocks.Block, error) {
 	return nil, OfflineMode
 }
 

offline_test.go

@@ -11,7 +11,7 @@ import (
 
 func TestBlockReturnsErr(t *testing.T) {
 	off := NewOfflineExchange()
-	_, err := off.Block(context.Background(), u.Key("foo"))
+	_, err := off.GetBlock(context.Background(), u.Key("foo"))
 	if err != nil {
 		return // as desired
 	}