cosmos
diff --git a/‎CHANGELOG.md
+2 b/‎CHANGELOG.md
+2
diff --git a/‎docs/architecture/adr-027-ibc-wasm.md
+1-1 b/‎docs/architecture/adr-027-ibc-wasm.md
+1-1
diff --git a/‎modules/core/02-client/client/cli/tx.go
+2-2 b/‎modules/core/02-client/client/cli/tx.go
+2-2
diff --git a/‎modules/core/02-client/keeper/client.go
+3-3 b/‎modules/core/02-client/keeper/client.go
+3-3
diff --git a/‎modules/core/02-client/keeper/client_test.go
+1-1 b/‎modules/core/02-client/keeper/client_test.go
+1-1
diff --git a/‎modules/core/02-client/legacy/v100/solomachine.go
+2-2 b/‎modules/core/02-client/legacy/v100/solomachine.go
+2-2
diff --git a/‎modules/core/02-client/types/codec.go
+14-46 b/‎modules/core/02-client/types/codec.go
+14-46
diff --git a/‎modules/core/02-client/types/codec_test.go
+7-54 b/‎modules/core/02-client/types/codec_test.go
+7-54
diff --git a/‎modules/core/02-client/types/encoding.go
+12-12 b/‎modules/core/02-client/types/encoding.go
+12-12
diff --git a/‎modules/core/02-client/types/encoding_test.go
+3-4 b/‎modules/core/02-client/types/encoding_test.go
+3-4
diff --git a/‎modules/core/02-client/types/msgs.go
+8-8 b/‎modules/core/02-client/types/msgs.go
+8-8
@@ -63,6 +63,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (testing) [\#892](https://github.com/cosmos/ibc-go/pull/892) IBC Mock modules store the scoped keeper and portID within the IBCMockApp. They also maintain reference to the AppModule to update the AppModule's list of IBC applications it references. Allows for the mock module to be reused as a base application in middleware stacks.
 * (channel) [\#882](https://github.com/cosmos/ibc-go/pull/882) The `WriteAcknowledgement` API now takes `exported.Acknowledgement` instead of a byte array
 * (modules/core/ante) [\#950](https://github.com/cosmos/ibc-go/pull/950) Replaces the channel keeper with the IBC keeper in the IBC `AnteDecorator` in order to execute the entire message and be able to reject redundant messages that are in the same block as the non-redundant messages.
+* (modules/core/exported) [\#1107](https://github.com/cosmos/ibc-go/pull/1107) Merging the `Header` and `Misbehaviour` interfaces into a single `ClientMessage` type
+
 
 ### State Machine Breaking
 
 
@@ -100,7 +100,7 @@ packaged inside a payload which is json serialized and passed to `callContract`
 array of bytes returned by the smart contract. This data is deserialized and passed as return argument.
 
 ```go
-func (c *ClientState) CheckProposedHeaderAndUpdateState(context sdk.Context, marshaler codec.BinaryMarshaler, store sdk.KVStore, header exported.Header) (exported.ClientState, exported.ConsensusState, error) {
+func (c *ClientState) CheckProposedHeaderAndUpdateState(context sdk.Context, marshaler codec.BinaryMarshaler, store sdk.KVStore, header exported.ClientMessage) (exported.ClientState, exported.ConsensusState, error) {
 	// get consensus state corresponding to client state to check if the client is expired
 	consensusState, err := GetConsensusState(store, marshaler, c.LatestHeight)
 	if err != nil {
 
@@ -100,7 +100,7 @@ func NewUpdateClientCmd() *cobra.Command {
 
 			cdc := codec.NewProtoCodec(clientCtx.InterfaceRegistry)
 
-			var header exported.Header
+			var header exported.ClientMessage
 			headerContentOrFileName := args[1]
 			if err := cdc.UnmarshalInterfaceJSON([]byte(headerContentOrFileName), &header); err != nil {
 
@@ -141,7 +141,7 @@ func NewSubmitMisbehaviourCmd() *cobra.Command {
 			}
 			cdc := codec.NewProtoCodec(clientCtx.InterfaceRegistry)
 
-			var misbehaviour exported.Misbehaviour
+			var misbehaviour exported.ClientMessage
 			clientID := args[0]
 			misbehaviourContentOrFileName := args[1]
 			if err := cdc.UnmarshalInterfaceJSON([]byte(misbehaviourContentOrFileName), &misbehaviour); err != nil {
 
@@ -57,7 +57,7 @@ func (k Keeper) CreateClient(
 }
 
 // UpdateClient updates the consensus state and the state root from a provided header.
-func (k Keeper) UpdateClient(ctx sdk.Context, clientID string, header exported.Header) error {
+func (k Keeper) UpdateClient(ctx sdk.Context, clientID string, header exported.ClientMessage) error {
 	clientState, found := k.GetClientState(ctx, clientID)
 	if !found {
 		return sdkerrors.Wrapf(types.ErrClientNotFound, "cannot update client with ID %s", clientID)
@@ -85,7 +85,7 @@ func (k Keeper) UpdateClient(ctx sdk.Context, clientID string, header exported.H
 		// Marshal the Header as an Any and encode the resulting bytes to hex.
 		// This prevents the event value from containing invalid UTF-8 characters
 		// which may cause data to be lost when JSON encoding/decoding.
-		headerStr = hex.EncodeToString(types.MustMarshalHeader(k.cdc, header))
+		headerStr = hex.EncodeToString(types.MustMarshalClientMessage(k.cdc, header))
 		// set default consensus height with header height
 		consensusHeight = header.GetHeight()
 
@@ -188,7 +188,7 @@ func (k Keeper) UpgradeClient(ctx sdk.Context, clientID string, upgradedClient e
 
 // CheckMisbehaviourAndUpdateState checks for client misbehaviour and freezes the
 // client if so.
-func (k Keeper) CheckMisbehaviourAndUpdateState(ctx sdk.Context, clientID string, misbehaviour exported.Misbehaviour) error {
+func (k Keeper) CheckMisbehaviourAndUpdateState(ctx sdk.Context, clientID string, misbehaviour exported.ClientMessage) error {
 	clientState, found := k.GetClientState(ctx, clientID)
 	if !found {
 		return sdkerrors.Wrapf(types.ErrClientNotFound, "cannot check misbehaviour for client with ID %s", clientID)
 
@@ -691,7 +691,7 @@ func (suite *KeeperTestSuite) TestUpdateClientEventEmission() {
 			bz, err := hex.DecodeString(string(attr.Value))
 			suite.Require().NoError(err)
 
-			emittedHeader, err := types.UnmarshalHeader(suite.chainA.App.AppCodec(), bz)
+			emittedHeader, err := types.UnmarshalClientMessage(suite.chainA.App.AppCodec(), bz)
 			suite.Require().NoError(err)
 			suite.Require().Equal(header, emittedHeader)
 		}
 
@@ -90,14 +90,14 @@ func (cs ClientState) ExportMetadata(_ sdk.KVStore) []exported.GenesisMetadata {
 
 // CheckHeaderAndUpdateState panics!
 func (cs *ClientState) CheckHeaderAndUpdateState(
-	_ sdk.Context, _ codec.BinaryCodec, _ sdk.KVStore, _ exported.Header,
+	_ sdk.Context, _ codec.BinaryCodec, _ sdk.KVStore, _ exported.ClientMessage,
 ) (exported.ClientState, exported.ConsensusState, error) {
 	panic("legacy solo machine is deprecated!")
 }
 
 // CheckMisbehaviourAndUpdateState panics!
 func (cs ClientState) CheckMisbehaviourAndUpdateState(
-	_ sdk.Context, _ codec.BinaryCodec, _ sdk.KVStore, _ exported.Misbehaviour,
+	_ sdk.Context, _ codec.BinaryCodec, _ sdk.KVStore, _ exported.ClientMessage,
 ) (exported.ClientState, error) {
 	panic("legacy solo machine is deprecated!")
 }
 
@@ -23,7 +23,7 @@ func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
 	)
 	registry.RegisterInterface(
 		"ibc.core.client.v1.Header",
-		(*exported.Header)(nil),
+		(*exported.ClientMessage)(nil),
 	)
 	registry.RegisterInterface(
 		"ibc.core.client.v1.Height",
@@ -32,7 +32,7 @@ func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
 	)
 	registry.RegisterInterface(
 		"ibc.core.client.v1.Misbehaviour",
-		(*exported.Misbehaviour)(nil),
+		(*exported.ClientMessage)(nil),
 	)
 	registry.RegisterImplementations(
 		(*govtypes.Content)(nil),
@@ -124,66 +124,34 @@ func UnpackConsensusState(any *codectypes.Any) (exported.ConsensusState, error)
 	return consensusState, nil
 }
 
-// PackHeader constructs a new Any packed with the given header value. It returns
-// an error if the header can't be casted to a protobuf message or if the concrete
+// PackClientMessage constructs a new Any packed with the given value. It returns
+// an error if the value can't be casted to a protobuf message or if the concrete
 // implemention is not registered to the protobuf codec.
-func PackHeader(header exported.Header) (*codectypes.Any, error) {
-	msg, ok := header.(proto.Message)
+func PackClientMessage(clientMessage exported.ClientMessage) (*codectypes.Any, error) {
+	msg, ok := clientMessage.(proto.Message)
 	if !ok {
-		return nil, sdkerrors.Wrapf(sdkerrors.ErrPackAny, "cannot proto marshal %T", header)
+		return nil, sdkerrors.Wrapf(sdkerrors.ErrPackAny, "cannot proto marshal %T", clientMessage)
 	}
 
-	anyHeader, err := codectypes.NewAnyWithValue(msg)
+	any, err := codectypes.NewAnyWithValue(msg)
 	if err != nil {
 		return nil, sdkerrors.Wrap(sdkerrors.ErrPackAny, err.Error())
 	}
 
-	return anyHeader, nil
+	return any, nil
 }
 
-// UnpackHeader unpacks an Any into a Header. It returns an error if the
-// consensus state can't be unpacked into a Header.
-func UnpackHeader(any *codectypes.Any) (exported.Header, error) {
+// UnpackClientMessage unpacks an Any into a ClientMessage. It returns an error if the
+// consensus state can't be unpacked into a ClientMessage.
+func UnpackClientMessage(any *codectypes.Any) (exported.ClientMessage, error) {
 	if any == nil {
 		return nil, sdkerrors.Wrap(sdkerrors.ErrUnpackAny, "protobuf Any message cannot be nil")
 	}
 
-	header, ok := any.GetCachedValue().(exported.Header)
+	clientMessage, ok := any.GetCachedValue().(exported.ClientMessage)
 	if !ok {
 		return nil, sdkerrors.Wrapf(sdkerrors.ErrUnpackAny, "cannot unpack Any into Header %T", any)
 	}
 
-	return header, nil
-}
-
-// PackMisbehaviour constructs a new Any packed with the given misbehaviour value. It returns
-// an error if the misbehaviour can't be casted to a protobuf message or if the concrete
-// implemention is not registered to the protobuf codec.
-func PackMisbehaviour(misbehaviour exported.Misbehaviour) (*codectypes.Any, error) {
-	msg, ok := misbehaviour.(proto.Message)
-	if !ok {
-		return nil, sdkerrors.Wrapf(sdkerrors.ErrPackAny, "cannot proto marshal %T", misbehaviour)
-	}
-
-	anyMisbhaviour, err := codectypes.NewAnyWithValue(msg)
-	if err != nil {
-		return nil, sdkerrors.Wrap(sdkerrors.ErrPackAny, err.Error())
-	}
-
-	return anyMisbhaviour, nil
-}
-
-// UnpackMisbehaviour unpacks an Any into a Misbehaviour. It returns an error if the
-// Any can't be unpacked into a Misbehaviour.
-func UnpackMisbehaviour(any *codectypes.Any) (exported.Misbehaviour, error) {
-	if any == nil {
-		return nil, sdkerrors.Wrap(sdkerrors.ErrUnpackAny, "protobuf Any message cannot be nil")
-	}
-
-	misbehaviour, ok := any.GetCachedValue().(exported.Misbehaviour)
-	if !ok {
-		return nil, sdkerrors.Wrapf(sdkerrors.ErrUnpackAny, "cannot unpack Any into Misbehaviour %T", any)
-	}
-
-	return misbehaviour, nil
+	return clientMessage, nil
 }
@@ -116,11 +116,11 @@ func (suite *TypesTestSuite) TestPackConsensusState() {
 	}
 }
 
-func (suite *TypesTestSuite) TestPackHeader() {
+func (suite *TypesTestSuite) TestPackClientMessage() {
 	testCases := []struct {
-		name    string
-		header  exported.Header
-		expPass bool
+		name          string
+		clientMessage exported.ClientMessage
+		expPass       bool
 	}{
 		{
 			"solo machine header",
@@ -142,7 +142,7 @@ func (suite *TypesTestSuite) TestPackHeader() {
 	testCasesAny := []caseAny{}
 
 	for _, tc := range testCases {
-		clientAny, err := types.PackHeader(tc.header)
+		clientAny, err := types.PackClientMessage(tc.clientMessage)
 		if tc.expPass {
 			suite.Require().NoError(err, tc.name)
 		} else {
@@ -153,57 +153,10 @@ func (suite *TypesTestSuite) TestPackHeader() {
 	}
 
 	for i, tc := range testCasesAny {
-		cs, err := types.UnpackHeader(tc.any)
+		cs, err := types.UnpackClientMessage(tc.any)
 		if tc.expPass {
 			suite.Require().NoError(err, tc.name)
-			suite.Require().Equal(testCases[i].header, cs, tc.name)
-		} else {
-			suite.Require().Error(err, tc.name)
-		}
-	}
-}
-
-func (suite *TypesTestSuite) TestPackMisbehaviour() {
-	testCases := []struct {
-		name         string
-		misbehaviour exported.Misbehaviour
-		expPass      bool
-	}{
-		{
-			"solo machine misbehaviour",
-			ibctesting.NewSolomachine(suite.T(), suite.chainA.Codec, "solomachine", "", 2).CreateMisbehaviour(),
-			true,
-		},
-		{
-			"tendermint misbehaviour",
-			ibctmtypes.NewMisbehaviour("tendermint", suite.chainA.LastHeader, suite.chainA.LastHeader),
-			true,
-		},
-		{
-			"nil",
-			nil,
-			false,
-		},
-	}
-
-	testCasesAny := []caseAny{}
-
-	for _, tc := range testCases {
-		clientAny, err := types.PackMisbehaviour(tc.misbehaviour)
-		if tc.expPass {
-			suite.Require().NoError(err, tc.name)
-		} else {
-			suite.Require().Error(err, tc.name)
-		}
-
-		testCasesAny = append(testCasesAny, caseAny{tc.name, clientAny, tc.expPass})
-	}
-
-	for i, tc := range testCasesAny {
-		cs, err := types.UnpackMisbehaviour(tc.any)
-		if tc.expPass {
-			suite.Require().NoError(err, tc.name)
-			suite.Require().Equal(testCases[i].misbehaviour, cs, tc.name)
+			suite.Require().Equal(testCases[i].clientMessage, cs, tc.name)
 		} else {
 			suite.Require().Error(err, tc.name)
 		}
 
@@ -86,29 +86,29 @@ func UnmarshalConsensusState(cdc codec.BinaryCodec, bz []byte) (exported.Consens
 	return consensusState, nil
 }
 
-// MarshalHeader protobuf serializes a Header interface
-func MarshalHeader(cdc codec.BinaryCodec, h exported.Header) ([]byte, error) {
-	return cdc.MarshalInterface(h)
+// MarshalClientMessage protobuf serializes a ClientMessage interface
+func MarshalClientMessage(cdc codec.BinaryCodec, clientMessage exported.ClientMessage) ([]byte, error) {
+	return cdc.MarshalInterface(clientMessage)
 }
 
-// MustMarshalHeader attempts to encode a Header object and returns the
+// MustMarshalClientMessage attempts to encode a ClientMessage object and returns the
 // raw encoded bytes. It panics on error.
-func MustMarshalHeader(cdc codec.BinaryCodec, header exported.Header) []byte {
-	bz, err := MarshalHeader(cdc, header)
+func MustMarshalClientMessage(cdc codec.BinaryCodec, clientMessage exported.ClientMessage) []byte {
+	bz, err := MarshalClientMessage(cdc, clientMessage)
 	if err != nil {
-		panic(fmt.Errorf("failed to encode header: %w", err))
+		panic(fmt.Errorf("failed to encode ClientMessage: %w", err))
 	}
 
 	return bz
 }
 
-// UnmarshalHeader returns a Header interface from raw proto encoded header bytes.
+// UnmarshalClientMessage returns a ClientMessage interface from raw proto encoded header bytes.
 // An error is returned upon decoding failure.
-func UnmarshalHeader(cdc codec.BinaryCodec, bz []byte) (exported.Header, error) {
-	var header exported.Header
-	if err := cdc.UnmarshalInterface(bz, &header); err != nil {
+func UnmarshalClientMessage(cdc codec.BinaryCodec, bz []byte) (exported.ClientMessage, error) {
+	var clientMessage exported.ClientMessage
+	if err := cdc.UnmarshalInterface(bz, &clientMessage); err != nil {
 		return nil, err
 	}
 
-	return header, nil
+	return clientMessage, nil
 }
@@ -13,18 +13,17 @@ func (suite *TypesTestSuite) TestMarshalHeader() {
 	}
 
 	// marshal header
-	bz, err := types.MarshalHeader(cdc, h)
+	bz, err := types.MarshalClientMessage(cdc, h)
 	suite.Require().NoError(err)
 
 	// unmarshal header
-	newHeader, err := types.UnmarshalHeader(cdc, bz)
+	newHeader, err := types.UnmarshalClientMessage(cdc, bz)
 	suite.Require().NoError(err)
 
 	suite.Require().Equal(h, newHeader)
 
 	// use invalid bytes
-	invalidHeader, err := types.UnmarshalHeader(cdc, []byte("invalid bytes"))
+	invalidHeader, err := types.UnmarshalClientMessage(cdc, []byte("invalid bytes"))
 	suite.Require().Error(err)
 	suite.Require().Nil(invalidHeader)
-
 }
@@ -104,8 +104,8 @@ func (msg MsgCreateClient) UnpackInterfaces(unpacker codectypes.AnyUnpacker) err
 
 // NewMsgUpdateClient creates a new MsgUpdateClient instance
 //nolint:interfacer
-func NewMsgUpdateClient(id string, header exported.Header, signer string) (*MsgUpdateClient, error) {
-	anyHeader, err := PackHeader(header)
+func NewMsgUpdateClient(id string, header exported.ClientMessage, signer string) (*MsgUpdateClient, error) {
+	anyHeader, err := PackClientMessage(header)
 	if err != nil {
 		return nil, err
 	}
@@ -123,7 +123,7 @@ func (msg MsgUpdateClient) ValidateBasic() error {
 	if err != nil {
 		return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "string could not be parsed as address: %v", err)
 	}
-	header, err := UnpackHeader(msg.Header)
+	header, err := UnpackClientMessage(msg.Header)
 	if err != nil {
 		return err
 	}
@@ -147,7 +147,7 @@ func (msg MsgUpdateClient) GetSigners() []sdk.AccAddress {
 
 // UnpackInterfaces implements UnpackInterfacesMessage.UnpackInterfaces
 func (msg MsgUpdateClient) UnpackInterfaces(unpacker codectypes.AnyUnpacker) error {
-	var header exported.Header
+	var header exported.ClientMessage
 	return unpacker.UnpackAny(msg.Header, &header)
 }
 
@@ -229,8 +229,8 @@ func (msg MsgUpgradeClient) UnpackInterfaces(unpacker codectypes.AnyUnpacker) er
 
 // NewMsgSubmitMisbehaviour creates a new MsgSubmitMisbehaviour instance.
 //nolint:interfacer
-func NewMsgSubmitMisbehaviour(clientID string, misbehaviour exported.Misbehaviour, signer string) (*MsgSubmitMisbehaviour, error) {
-	anyMisbehaviour, err := PackMisbehaviour(misbehaviour)
+func NewMsgSubmitMisbehaviour(clientID string, misbehaviour exported.ClientMessage, signer string) (*MsgSubmitMisbehaviour, error) {
+	anyMisbehaviour, err := PackClientMessage(misbehaviour)
 	if err != nil {
 		return nil, err
 	}
@@ -248,7 +248,7 @@ func (msg MsgSubmitMisbehaviour) ValidateBasic() error {
 	if err != nil {
 		return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "string could not be parsed as address: %v", err)
 	}
-	misbehaviour, err := UnpackMisbehaviour(msg.Misbehaviour)
+	misbehaviour, err := UnpackClientMessage(msg.Misbehaviour)
 	if err != nil {
 		return err
 	}
@@ -270,6 +270,6 @@ func (msg MsgSubmitMisbehaviour) GetSigners() []sdk.AccAddress {
 
 // UnpackInterfaces implements UnpackInterfacesMessage.UnpackInterfaces
 func (msg MsgSubmitMisbehaviour) UnpackInterfaces(unpacker codectypes.AnyUnpacker) error {
-	var misbehaviour exported.Misbehaviour
+	var misbehaviour exported.ClientMessage
 	return unpacker.UnpackAny(msg.Misbehaviour, &misbehaviour)
 }
Original file line number	Diff line number	Diff line change
`@@ -691,7 +691,7 @@ func (suite *KeeperTestSuite) TestUpdateClientEventEmission() {`
`691`	`691`	`bz, err := hex.DecodeString(string(attr.Value))`
`692`	`692`	`suite.Require().NoError(err)`
`693`	`693`
`694`		`- emittedHeader, err := types.UnmarshalHeader(suite.chainA.App.AppCodec(), bz)`
	`694`	`+ emittedHeader, err := types.UnmarshalClientMessage(suite.chainA.App.AppCodec(), bz)`
`695`	`695`	`suite.Require().NoError(err)`
`696`	`696`	`suite.Require().Equal(header, emittedHeader)`
`697`	`697`	`}`