keeper

package
v0.2.0 Latest Latest
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 Go to latest Published: Apr 21, 2022 License: Apache-2.0 Imports: 26 Imported by: 1

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AllInvariants 

func AllInvariants(k Keeper) sdk.Invariant

AllInvariants runs all invariants of the bridge module

func BackedCoinsInvariant 

func BackedCoinsInvariant(k Keeper) sdk.Invariant

BackedCoinsInvariant iterates all conversion pairs and asserts that the sdk.Coin balances are less than the module ERC20 balance. **Note:** This compares <= and not == as anyone can send tokens to the ERC20 contract address and break the invariant if a strict equal check.

func BridgePairsIndexInvariant 

func BridgePairsIndexInvariant(k Keeper) sdk.Invariant

BridgePairsIndexInvariant iterates all bridge pairs and asserts the index for querying are all valid.

func BridgePairsInvariant 

func BridgePairsInvariant(k Keeper) sdk.Invariant

BridgePairsInvariant iterates all bridge pairs and asserts that they are valid

func NewMsgServerImpl 

func NewMsgServerImpl(keeper Keeper) types.MsgServer

NewMsgServerImpl returns an implementation of the bridge MsgServer interface for the provided Keeper.

func NewQueryServerImpl 

func NewQueryServerImpl(k Keeper) types.QueryServer

NewQueryServerImpl creates a new server for handling gRPC queries.

func RegisterInvariants 

func RegisterInvariants(ir sdk.InvariantRegistry, k Keeper)

RegisterInvariants registers the bridge module invariants

func WrappingAddInt 

func WrappingAddInt(i1 sdk.Int, i2 sdk.Int) sdk.Int

WrappingAddInt adds two sdk.Int values with intentional wrapping.

Types

type ConversionHooks 

type ConversionHooks struct {
	// contains filtered or unexported fields
}

Hooks wrapper struct for bridge keeper

func (ConversionHooks) PostTxProcessing 

func (h ConversionHooks) PostTxProcessing(
	ctx sdk.Context,
	msg core.Message,
	receipt *ethtypes.Receipt,
) error

PostTxProcessing implements EvmHooks.PostTxProcessing. This handles minting sdk.Coin when ConvertToCoin() is called on an eligible Kava ERC20 contract.

type Keeper 

type Keeper struct {
	// contains filtered or unexported fields
}

Keeper keeper for the bridge module

func NewKeeper 

func NewKeeper(
	cdc codec.BinaryCodec,
	storeKey sdk.StoreKey,
	paramstore paramtypes.Subspace,
	bk types.BankKeeper,
	ak types.AccountKeeper,
	ek types.EvmKeeper,
) Keeper

NewKeeper creates a new keeper

func (Keeper) BridgeEthereumToKava 

func (k Keeper) BridgeEthereumToKava(
	ctx sdk.Context,
	relayer sdk.AccAddress,
	externalERC20Address types.ExternalEVMAddress,
	receiver types.InternalEVMAddress,
	amount *big.Int,
	sequence sdk.Int,
) error

BridgeEthereumToKava mints the bridged amount at the corresponding bridged ERC20 contract on Kava EVM, deploying the ERC20 contract first if it doesn't already exist.

func (Keeper) BurnConversionPairCoin 

func (k Keeper) BurnConversionPairCoin(
	ctx sdk.Context,
	pair types.ConversionPair,
	coin sdk.Coin,
	account sdk.AccAddress,
) error

BurnConversionPairCoin transfers the provided amount to the module account then burns it.

func (Keeper) CallEVM 

func (k Keeper) CallEVM(
	ctx sdk.Context,
	abi abi.ABI,
	from common.Address,
	contract types.InternalEVMAddress,
	method string,
	args ...interface{},
) (*evmtypes.MsgEthereumTxResponse, error)

CallEVM performs a smart contract method call using given args

func (Keeper) CallEVMWithData 

func (k Keeper) CallEVMWithData(
	ctx sdk.Context,
	from common.Address,
	contract *types.InternalEVMAddress,
	data []byte,
) (*evmtypes.MsgEthereumTxResponse, error)

CallEVMWithData performs a smart contract method call using contract data Derived from tharsis/evmos https://github.com/tharsis/evmos/blob/ee54f496551df937915ff6f74a94732a35abc505/x/erc20/keeper/evm.go

func (Keeper) ConversionHooks 

func (k Keeper) ConversionHooks() ConversionHooks

Return the wrapper struct

func (Keeper) ConvertCoinToERC20 

func (k Keeper) ConvertCoinToERC20(
	ctx sdk.Context,
	initiatorAccount sdk.AccAddress,
	receiverAccount types.InternalEVMAddress,
	coin sdk.Coin,
) error

ConvertCoinToERC20 converts an sdk.Coin from the originating account to an ERC20 to the receiver account.

func (Keeper) DeployMintableERC20Contract 

func (k Keeper) DeployMintableERC20Contract(
	ctx sdk.Context,
	token types.EnabledERC20Token,
) (types.InternalEVMAddress, error)

DeployMintableERC20Contract deploys an ERC20 contract on the EVM as the module account and returns the address of the contract. This contract has minting permissions for the module account. Derived from tharsis/evmos https://github.com/tharsis/evmos/blob/ee54f496551df937915ff6f74a94732a35abc505/x/erc20/keeper/evm.go

func (Keeper) GetBridgePair 

func (k Keeper) GetBridgePair(
	ctx sdk.Context,
	id []byte,
) (types.ERC20BridgePair, bool)

GetBridgePair returns the ERC20 bridge pair with the provided pair ID from the store.

func (Keeper) GetBridgePairFromExternal 

func (k Keeper) GetBridgePairFromExternal(
	ctx sdk.Context,
	externalAddress types.ExternalEVMAddress,
) (types.ERC20BridgePair, bool)

GetBridgePairFromExternal gets ERC20 bridge pair with the provided ExternalEVMAddress from the store.

func (Keeper) GetBridgePairFromInternal 

func (k Keeper) GetBridgePairFromInternal(
	ctx sdk.Context,
	internalAddress types.InternalEVMAddress,
) (types.ERC20BridgePair, bool)

GetBridgePairFromInternal gets ERC20 bridge pair with the provided InternalEVMAddress from the store.

func (Keeper) GetEnabledConversionPairFromDenom 

func (k Keeper) GetEnabledConversionPairFromDenom(
	ctx sdk.Context,
	denom string,
) (types.ConversionPair, error)

GetEnabledConversionPairFromDenom returns an ConversionPair from the sdk.Coin denom.

func (Keeper) GetEnabledConversionPairFromERC20Address 

func (k Keeper) GetEnabledConversionPairFromERC20Address(
	ctx sdk.Context,
	address types.InternalEVMAddress,
) (types.ConversionPair, error)

GetEnabledConversionPairFromERC20Address returns an ConversionPair from the internal contract address.

func (Keeper) GetEnabledConversionPairs 

func (k Keeper) GetEnabledConversionPairs(ctx sdk.Context) types.ConversionPairs

GetEnabledConversionPairs returns the all ConversionPairs

func (Keeper) GetEnabledERC20TokenFromExternal 

func (k Keeper) GetEnabledERC20TokenFromExternal(
	ctx sdk.Context,
	address types.ExternalEVMAddress,
) (types.EnabledERC20Token, error)

GetEnabledERC20TokenFromExternal returns an EnabledERC20Token from the external Ethereum contract address.

func (Keeper) GetEnabledERC20Tokens 

func (k Keeper) GetEnabledERC20Tokens(ctx sdk.Context) types.EnabledERC20Tokens

GetEnabledERC20Tokens returns the all EnabledERC20Tokens

func (Keeper) GetNextWithdrawSequence 

func (k Keeper) GetNextWithdrawSequence(ctx sdk.Context) (sdk.Int, error)

GetNextWithdrawSequence reads the next available global withdraw sequence from store.

func (Keeper) GetOrDeployInternalERC20 

func (k Keeper) GetOrDeployInternalERC20(
	ctx sdk.Context,
	externalAddress types.ExternalEVMAddress,
) (types.InternalEVMAddress, error)

GetOrDeployInternalERC20 returns the internal EVM address mapped to the provided ExternalEVMAddress. This will either return from the store if it is already deployed, or will first deploy the internal ERC20 contract and return the new address.

func (Keeper) GetPairIDFromExternal 

func (k Keeper) GetPairIDFromExternal(
	ctx sdk.Context,
	externalAddress types.ExternalEVMAddress,
) ([]byte, bool)

GetPairIDFromExternal gets the erc20 bridge pair id from the given external address.

func (Keeper) GetPairIDFromInternal 

func (k Keeper) GetPairIDFromInternal(
	ctx sdk.Context,
	internalAddress types.InternalEVMAddress,
) ([]byte, bool)

GetPairIDFromInternal gets the erc20 bridge pair id from the given internal address.

func (Keeper) GetParams 

func (k Keeper) GetParams(ctx sdk.Context) (params types.Params)

GetParams returns the total set of evm parameters.

func (Keeper) GetRelayer 

func (k Keeper) GetRelayer(ctx sdk.Context) sdk.AccAddress

GetRelayer returns the relayer in params

func (Keeper) IncrementNextWithdrawSequence 

func (k Keeper) IncrementNextWithdrawSequence(ctx sdk.Context) error

IncrementNextWithdrawSequence increments the next withdraw sequence in the store by 1.

func (Keeper) IsSignerAuthorized 

func (k Keeper) IsSignerAuthorized(ctx sdk.Context, signer sdk.AccAddress) error

IsSignerAuthorized returns an error if the provided message signer does not match the relayer set in params.

func (Keeper) IterateBridgePairs 

func (k Keeper) IterateBridgePairs(
	ctx sdk.Context,
	cb func(pair types.ERC20BridgePair) (stop bool),
)

IterateBridgePairs provides an iterator over all stored ERC20 bridge pairs. For each pair, cb will be called. If cb returns true, the iterator will close and stop.

func (Keeper) Logger 

func (k Keeper) Logger(ctx sdk.Context) log.Logger

Logger returns a module-specific logger.

func (Keeper) MintConversionPairCoin 

func (k Keeper) MintConversionPairCoin(
	ctx sdk.Context,
	pair types.ConversionPair,
	amount *big.Int,
	recipient sdk.AccAddress,
) (sdk.Coin, error)

MintConversionPairCoin mints the given amount of a ConversionPair denom and sends it to the provided address.

func (Keeper) MintERC20 

func (k Keeper) MintERC20(
	ctx sdk.Context,
	contractAddr types.InternalEVMAddress,
	receiver types.InternalEVMAddress,
	amount *big.Int,
) error

MintERC20 mints the given amount of an ERC20 token to an address. This is unchecked and should only be called after permission and enabled ERC20 checks.

func (Keeper) QueryERC20BalanceOf 

func (k Keeper) QueryERC20BalanceOf(
	ctx sdk.Context,
	contractAddr types.InternalEVMAddress,
	account types.InternalEVMAddress,
) (*big.Int, error)

func (Keeper) RegisterBridgePair 

func (k Keeper) RegisterBridgePair(
	ctx sdk.Context,
	pair types.ERC20BridgePair,
)

RegisterBridgePair puts the erc20 bridge pair in the store with all of its corresponding external/internal to ID mappings.

func (Keeper) SetNextWithdrawSequence 

func (k Keeper) SetNextWithdrawSequence(ctx sdk.Context, sequence sdk.Int)

SetNextWithdrawSequence stores a sequence to be used for the next withdraw.

func (Keeper) SetParams 

func (k Keeper) SetParams(ctx sdk.Context, params types.Params)

SetParams sets the evm parameters to the param space.

func (Keeper) SetRelayer 

func (k Keeper) SetRelayer(ctx sdk.Context, relayer sdk.AccAddress)

SetRelayer sets the relayer in params

func (Keeper) UnlockERC20Tokens 

func (k Keeper) UnlockERC20Tokens(
	ctx sdk.Context,
	pair types.ConversionPair,
	amount *big.Int,
	receiver types.InternalEVMAddress,
) error

UnlockERC20Tokens transfers the given amount of a conversion pair ERC20 token to the provided account.

func (Keeper) WithdrawHooks 

func (k Keeper) WithdrawHooks() WithdrawHook

Return the wrapper struct

type WithdrawHook 

type WithdrawHook struct {
	// contains filtered or unexported fields
}

Hooks wrapper struct for bridge keeper

func (WithdrawHook) PostTxProcessing 

func (h WithdrawHook) PostTxProcessing(
	ctx sdk.Context,
	msg core.Message,
	receipt *ethtypes.Receipt,
) error

PostTxProcessing implements EvmHooks.PostTxProcessing

Source Files

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