remove unused TxEventBuffer

types/event_buffer.go

@@ -1,50 +0,0 @@
-package types
-
-// Interface assertions
-var _ TxEventPublisher = (*TxEventBuffer)(nil)
-
-// TxEventBuffer is a buffer of events, which uses a slice to temporarily store
-// events.
-type TxEventBuffer struct {
-	next     TxEventPublisher
-	capacity int
-	events   []EventDataTx
-}
-
-// NewTxEventBuffer accepts a TxEventPublisher and returns a new buffer with the given
-// capacity.
-func NewTxEventBuffer(next TxEventPublisher, capacity int) *TxEventBuffer {
-	return &TxEventBuffer{
-		next:     next,
-		capacity: capacity,
-		events:   make([]EventDataTx, 0, capacity),
-	}
-}
-
-// Len returns the number of events cached.
-func (b TxEventBuffer) Len() int {
-	return len(b.events)
-}
-
-// PublishEventTx buffers an event to be fired upon finality.
-func (b *TxEventBuffer) PublishEventTx(e EventDataTx) error {
-	b.events = append(b.events, e)
-	return nil
-}
-
-// Flush publishes events by running next.PublishWithTags on all cached events.
-// Blocks. Clears cached events.
-func (b *TxEventBuffer) Flush() error {
-	for _, e := range b.events {
-		err := b.next.PublishEventTx(e)
-		if err != nil {
-			return err
-		}
-	}
-
-	// Clear out the elements and set the length to 0
-	// but maintain the underlying slice's capacity.
-	// See Issue https://github.com/tendermint/tendermint/issues/1189
-	b.events = b.events[:0]
-	return nil
-}

types/event_buffer_test.go

@@ -1,21 +0,0 @@
-package types
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-type eventBusMock struct{}
-
-func (eventBusMock) PublishEventTx(e EventDataTx) error {
-	return nil
-}
-
-func TestEventBuffer(t *testing.T) {
-	b := NewTxEventBuffer(eventBusMock{}, 1)
-	b.PublishEventTx(EventDataTx{})
-	assert.Equal(t, 1, b.Len())
-	b.Flush()
-	assert.Equal(t, 0, b.Len())
-}