lnwire: add Error() method to lnwire.FailureMessage

lnwire/onion_error.go

@@ -146,6 +146,11 @@ func (c FailCode) String() string {
 // NOTE: May be returned by any node in the payment route.
 type FailInvalidRealm struct{}
 
+func (f FailInvalidRealm) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Code returns the failure unique code.
 //
 // NOTE: Part of the FailureMessage interface.
@@ -165,6 +170,11 @@ func (f FailTemporaryNodeFailure) Code() FailCode {
 	return CodeTemporaryNodeFailure
 }
 
+func (f FailTemporaryNodeFailure) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailPermanentNodeFailure is returned if an otherwise unspecified permanent
 // error occurs for the entire node.
 //
@@ -178,6 +188,11 @@ func (f FailPermanentNodeFailure) Code() FailCode {
 	return CodePermanentNodeFailure
 }
 
+func (f FailPermanentNodeFailure) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailRequiredNodeFeatureMissing is returned if a node has requirement
 // advertised in its node_announcement features which were not present in the
 // onion.
@@ -192,6 +207,11 @@ func (f FailRequiredNodeFeatureMissing) Code() FailCode {
 	return CodeRequiredNodeFeatureMissing
 }
 
+func (f FailRequiredNodeFeatureMissing) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailPermanentChannelFailure is return if an otherwise unspecified permanent
 // error occurs for the outgoing channel (eg. channel (recently).
 //
@@ -205,6 +225,11 @@ func (f FailPermanentChannelFailure) Code() FailCode {
 	return CodePermanentChannelFailure
 }
 
+func (f FailPermanentChannelFailure) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailRequiredChannelFeatureMissing is returned if the outgoing channel has a
 // requirement advertised in its channel announcement features which were not
 // present in the onion.
@@ -219,6 +244,11 @@ func (f FailRequiredChannelFeatureMissing) Code() FailCode {
 	return CodeRequiredChannelFeatureMissing
 }
 
+func (f FailRequiredChannelFeatureMissing) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailUnknownNextPeer is returned if the next peer specified by the onion is
 // not known.
 //
@@ -232,6 +262,11 @@ func (f FailUnknownNextPeer) Code() FailCode {
 	return CodeUnknownNextPeer
 }
 
+func (f FailUnknownNextPeer) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailUnknownPaymentHash is returned If the payment hash has already been
 // paid, the final node MAY treat the payment hash as unknown, or may succeed
 // in accepting the HTLC. If the payment hash is unknown, the final node MUST
@@ -247,6 +282,11 @@ func (f FailUnknownPaymentHash) Code() FailCode {
 	return CodeUnknownPaymentHash
 }
 
+func (f FailUnknownPaymentHash) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailIncorrectPaymentAmount is returned if the amount paid is less than the
 // amount expected, the final node MUST fail the HTLC. If the amount paid is
 // more than twice the amount expected, the final node SHOULD fail the HTLC.
@@ -263,6 +303,11 @@ func (f FailIncorrectPaymentAmount) Code() FailCode {
 	return CodeIncorrectPaymentAmount
 }
 
+func (f FailIncorrectPaymentAmount) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailFinalExpiryTooSoon is returned if the cltv_expiry is too low, the final
 // node MUST fail the HTLC.
 //
@@ -276,6 +321,11 @@ func (f FailFinalExpiryTooSoon) Code() FailCode {
 	return CodeFinalExpiryTooSoon
 }
 
+func (f FailFinalExpiryTooSoon) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailInvalidOnionVersion is returned if the onion version byte is unknown.
 //
 // NOTE: May be returned only by intermediate nodes.
@@ -284,6 +334,11 @@ type FailInvalidOnionVersion struct {
 	OnionSHA256 [sha256.Size]byte
 }
 
+func (f FailInvalidOnionVersion) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // NewInvalidOnionVersion creates new instance of the FailInvalidOnionVersion.
 func NewInvalidOnionVersion(onion []byte) *FailInvalidOnionVersion {
 	return &FailInvalidOnionVersion{OnionSHA256: sha256.Sum256(onion)}
@@ -344,6 +399,11 @@ func (f *FailInvalidOnionHmac) Encode(w io.Writer, pver uint32) error {
 	return writeElement(w, f.OnionSHA256[:])
 }
 
+func (f FailInvalidOnionHmac) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // FailInvalidOnionKey is return if the ephemeral key in the onion is
 // unparsable.
 //
@@ -379,6 +439,11 @@ func (f *FailInvalidOnionKey) Encode(w io.Writer, pver uint32) error {
 	return writeElement(w, f.OnionSHA256[:])
 }
 
+func (f FailInvalidOnionKey) Error() string {
+	var failCode = f.Code()
+	return failCode.String()
+}
+
 // FailTemporaryChannelFailure is if an otherwise unspecified transient error
 // occurs for the outgoing channel (eg. channel capacity reached, too many
 // in-flight htlcs)
@@ -404,6 +469,11 @@ func (f *FailTemporaryChannelFailure) Code() FailCode {
 	return CodeTemporaryChannelFailure
 }
 
+func (f FailTemporaryChannelFailure) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Decode decodes the failure from bytes stream.
 //
 // NOTE: Part of the Serializable interface.
@@ -473,6 +543,11 @@ func (f *FailAmountBelowMinimum) Code() FailCode {
 	return CodeAmountBelowMinimum
 }
 
+func (f FailAmountBelowMinimum) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Decode decodes the failure from bytes stream.
 //
 // NOTE: Part of the Serializable interface.
@@ -536,6 +611,11 @@ func (f *FailFeeInsufficient) Code() FailCode {
 	return CodeFeeInsufficient
 }
 
+func (f FailFeeInsufficient) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Decode decodes the failure from bytes stream.
 //
 // NOTE: Part of the Serializable interface.
@@ -602,6 +682,11 @@ func (f *FailIncorrectCltvExpiry) Code() FailCode {
 	return CodeIncorrectCltvExpiry
 }
 
+func (f *FailIncorrectCltvExpiry) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Decode decodes the failure from bytes stream.
 //
 // NOTE: Part of the Serializable interface.
@@ -659,7 +744,12 @@ func (f *FailExpiryTooSoon) Code() FailCode {
 	return CodeExpiryTooSoon
 }
 
-// Decode decodes the failure from bytes stream.
+func (f *FailExpiryTooSoon) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
+// Decode decodes the failure from l stream.
 //
 // NOTE: Part of the Serializable interface.
 func (f *FailExpiryTooSoon) Decode(r io.Reader, pver uint32) error {
@@ -714,6 +804,11 @@ func (f *FailChannelDisabled) Code() FailCode {
 	return CodeChannelDisabled
 }
 
+func (f FailChannelDisabled) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // Decode decodes the failure from bytes stream.
 //
 // NOTE: Part of the Serializable interface.
@@ -757,6 +852,11 @@ type FailFinalIncorrectCltvExpiry struct {
 	CltvExpiry uint32
 }
 
+func (f FailFinalIncorrectCltvExpiry) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // NewFinalIncorrectCltvExpiry creates new instance of the
 // FailFinalIncorrectCltvExpiry.
 func NewFinalIncorrectCltvExpiry(cltvExpiry uint32) *FailFinalIncorrectCltvExpiry {
@@ -795,6 +895,11 @@ type FailFinalIncorrectHtlcAmount struct {
 	IncomingHTLCAmount MilliSatoshi
 }
 
+func (f FailFinalIncorrectHtlcAmount) Error() string {
+	var code = f.Code()
+	return code.String()
+}
+
 // NewFinalIncorrectHtlcAmount creates new instance of the
 // FailFinalIncorrectHtlcAmount.
 func NewFinalIncorrectHtlcAmount(amount MilliSatoshi) *FailFinalIncorrectHtlcAmount {