lnwallet: export AnchorSize

Author: guggero

lnwallet/channel.go

@@ -8495,7 +8495,7 @@ func NewAnchorResolution(chanState *channeldb.OpenChannel,
 		WitnessScript: anchorWitnessScript,
 		Output: &wire.TxOut{
 			PkScript: localAnchor.PkScript(),
-			Value:    int64(anchorSize),
+			Value:    int64(AnchorSize),
 		},
 		HashType: sweepSigHash(chanState.ChanType),
 	}
@@ -8507,7 +8507,7 @@ func NewAnchorResolution(chanState *channeldb.OpenChannel,
 
 		//nolint:lll
 		signDesc.PrevOutputFetcher = txscript.NewCannedPrevOutputFetcher(
-			localAnchor.PkScript(), int64(anchorSize),
+			localAnchor.PkScript(), int64(AnchorSize),
 		)
 
 		// For anchor outputs with taproot channels, the key desc is
@@ -9000,7 +9000,7 @@ func (lc *LightningChannel) LocalBalanceDust() bool {
 	// regain the stats allocated to the anchor outputs with the co-op
 	// close transaction.
 	if chanState.ChanType.HasAnchors() && chanState.IsInitiator {
-		localBalance += 2 * anchorSize
+		localBalance += 2 * AnchorSize
 	}
 
 	return localBalance <= chanState.LocalChanCfg.DustLimit
@@ -9020,7 +9020,7 @@ func (lc *LightningChannel) RemoteBalanceDust() bool {
 	// regain the stats allocated to the anchor outputs with the co-op
 	// close transaction.
 	if chanState.ChanType.HasAnchors() && !chanState.IsInitiator {
-		remoteBalance += 2 * anchorSize
+		remoteBalance += 2 * AnchorSize
 	}
 
 	return remoteBalance <= chanState.RemoteChanCfg.DustLimit

lnwallet/channel_test.go

@@ -712,7 +712,7 @@ func TestCooperativeChannelClosure(t *testing.T) {
 		testCoopClose(t, &coopCloseTestCase{
 			chanType: channeldb.SingleFunderTweaklessBit |
 				channeldb.AnchorOutputsBit,
-			anchorAmt: anchorSize * 2,
+			anchorAmt: AnchorSize * 2,
 		})
 	})
 }
@@ -822,7 +822,7 @@ func TestForceClose(t *testing.T) {
 			chanType: channeldb.SingleFunderTweaklessBit |
 				channeldb.AnchorOutputsBit,
 			expectedCommitWeight: input.AnchorCommitWeight,
-			anchorAmt:            anchorSize * 2,
+			anchorAmt:            AnchorSize * 2,
 		})
 	})
 	t.Run("taproot", func(t *testing.T) {
@@ -831,7 +831,7 @@ func TestForceClose(t *testing.T) {
 				channeldb.AnchorOutputsBit |
 				channeldb.SimpleTaprootFeatureBit,
 			expectedCommitWeight: input.TaprootCommitWeight,
-			anchorAmt:            anchorSize * 2,
+			anchorAmt:            AnchorSize * 2,
 		})
 	})
 	t.Run("taproot with tapscript root", func(t *testing.T) {
@@ -841,7 +841,7 @@ func TestForceClose(t *testing.T) {
 				channeldb.SimpleTaprootFeatureBit |
 				channeldb.TapscriptRootBit,
 			expectedCommitWeight: input.TaprootCommitWeight,
-			anchorAmt:            anchorSize * 2,
+			anchorAmt:            AnchorSize * 2,
 		})
 	})
 }
@@ -927,7 +927,7 @@ func testForceClose(t *testing.T, testCase *forceCloseTestCase) {
 			t.Fatal("commit tx not referenced by anchor res")
 		}
 		if anchorRes.AnchorSignDescriptor.Output.Value !=
-			int64(anchorSize) {
+			int64(AnchorSize) {
 
 			t.Fatal("unexpected anchor size")
 		}

lnwallet/commitment.go

@@ -18,8 +18,8 @@ import (
 	"github.com/lightningnetwork/lnd/tlv"
 )
 
-// anchorSize is the constant anchor output size.
-const anchorSize = btcutil.Amount(330)
+// AnchorSize is the constant anchor output size.
+const AnchorSize = btcutil.Amount(330)
 
 // DefaultAnchorsCommitMaxFeeRateSatPerVByte is the default max fee rate in
 // sat/vbyte the initiator will use for anchor channels. This should be enough
@@ -1155,7 +1155,7 @@ func CreateCommitTx(chanType channeldb.ChannelType,
 		if localOutput || numHTLCs > 0 {
 			commitTx.AddTxOut(&wire.TxOut{
 				PkScript: localAnchor.PkScript(),
-				Value:    int64(anchorSize),
+				Value:    int64(AnchorSize),
 			})
 		}
 
@@ -1164,7 +1164,7 @@ func CreateCommitTx(chanType channeldb.ChannelType,
 		if remoteOutput || numHTLCs > 0 {
 			commitTx.AddTxOut(&wire.TxOut{
 				PkScript: remoteAnchor.PkScript(),
-				Value:    int64(anchorSize),
+				Value:    int64(AnchorSize),
 			})
 		}
 	}
@@ -1189,7 +1189,7 @@ func CoopCloseBalance(chanType channeldb.ChannelType, isInitiator bool,
 	// Since the initiator's balance also is stored after subtracting the
 	// anchor values, add that back in case this was an anchor commitment.
 	if chanType.HasAnchors() {
-		initiatorDelta += 2 * anchorSize
+		initiatorDelta += 2 * AnchorSize
 	}
 
 	// The initiator will pay the full coop close fee, subtract that value

lnwallet/reservation.go

@@ -265,7 +265,7 @@ func NewChannelReservation(capacity, localFundingAmt btcutil.Amount,
 	// addition to the two anchor outputs.
 	feeMSat := lnwire.NewMSatFromSatoshis(commitFee)
 	if req.CommitType.HasAnchors() {
-		feeMSat += 2 * lnwire.NewMSatFromSatoshis(anchorSize)
+		feeMSat += 2 * lnwire.NewMSatFromSatoshis(AnchorSize)
 	}
 
 	// Used to cut down on verbosity.

lnwallet/test_utils.go

@@ -254,7 +254,7 @@ func CreateTestChannels(t *testing.T, chanType channeldb.ChannelType,
 	commitFee := calcStaticFee(chanType, 0)
 	var anchorAmt btcutil.Amount
 	if chanType.HasAnchors() {
-		anchorAmt += 2 * anchorSize
+		anchorAmt += 2 * AnchorSize
 	}
 
 	aliceBalance := lnwire.NewMSatFromSatoshis(

lnwallet/transactions_test.go

@@ -923,7 +923,7 @@ func createTestChannelsForVectors(tc *testContext, chanType channeldb.ChannelTyp
 
 	var anchorAmt btcutil.Amount
 	if chanType.HasAnchors() {
-		anchorAmt = 2 * anchorSize
+		anchorAmt = 2 * AnchorSize
 	}
 
 	remoteCommitTx, localCommitTx, err := CreateCommitmentTxns(