feat: wrapped-a0gi-base precompile

precompiles/interfaces/contracts/IWrappedA0GIBase.sol

@@ -20,7 +20,7 @@ interface IWrappedA0GIBase {
     /**
      * @dev get the wA0GI address.
      */
-    function getWA0GI() external returns (address);
+    function getWA0GI() external view returns (address);
 
     /**
      * @dev set the cap for a minter.

precompiles/wrapped-a0gi-base/IWrappedA0GIBase.json

@@ -27,7 +27,7 @@
         "type": "address"
       }
     ],
-    "stateMutability": "nonpayable",
+    "stateMutability": "view",
     "type": "function"
   },
   {

precompiles/wrapped-a0gi-base/contract.go

@@ -30,7 +30,7 @@ var (
 
 // Wrappeda0gibaseMetaData contains all meta data concerning the Wrappeda0gibase contract.
 var Wrappeda0gibaseMetaData = &bind.MetaData{
-	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getWA0GI\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"}],\"name\":\"minterSupply\",\"outputs\":[{\"components\":[{\"internalType\":\"uint256\",\"name\":\"cap\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"total\",\"type\":\"uint256\"}],\"internalType\":\"structSupply\",\"name\":\"\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getWA0GI\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"minter\",\"type\":\"address\"}],\"name\":\"minterSupply\",\"outputs\":[{\"components\":[{\"internalType\":\"uint256\",\"name\":\"cap\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"total\",\"type\":\"uint256\"}],\"internalType\":\"structSupply\",\"name\":\"\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
 }
 
 // Wrappeda0gibaseABI is the input ABI used to generate the binding from.
@@ -179,6 +179,37 @@ func (_Wrappeda0gibase *Wrappeda0gibaseTransactorRaw) Transact(opts *bind.Transa
 	return _Wrappeda0gibase.Contract.contract.Transact(opts, method, params...)
 }
 
+// GetWA0GI is a free data retrieval call binding the contract method 0xa9283a7a.
+//
+// Solidity: function getWA0GI() view returns(address)
+func (_Wrappeda0gibase *Wrappeda0gibaseCaller) GetWA0GI(opts *bind.CallOpts) (common.Address, error) {
+	var out []interface{}
+	err := _Wrappeda0gibase.contract.Call(opts, &out, "getWA0GI")
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// GetWA0GI is a free data retrieval call binding the contract method 0xa9283a7a.
+//
+// Solidity: function getWA0GI() view returns(address)
+func (_Wrappeda0gibase *Wrappeda0gibaseSession) GetWA0GI() (common.Address, error) {
+	return _Wrappeda0gibase.Contract.GetWA0GI(&_Wrappeda0gibase.CallOpts)
+}
+
+// GetWA0GI is a free data retrieval call binding the contract method 0xa9283a7a.
+//
+// Solidity: function getWA0GI() view returns(address)
+func (_Wrappeda0gibase *Wrappeda0gibaseCallerSession) GetWA0GI() (common.Address, error) {
+	return _Wrappeda0gibase.Contract.GetWA0GI(&_Wrappeda0gibase.CallOpts)
+}
+
 // MinterSupply is a free data retrieval call binding the contract method 0x95609212.
 //
 // Solidity: function minterSupply(address minter) view returns((uint256,uint256))
@@ -231,27 +262,6 @@ func (_Wrappeda0gibase *Wrappeda0gibaseTransactorSession) Burn(minter common.Add
 	return _Wrappeda0gibase.Contract.Burn(&_Wrappeda0gibase.TransactOpts, minter, amount)
 }
 
-// GetWA0GI is a paid mutator transaction binding the contract method 0xa9283a7a.
-//
-// Solidity: function getWA0GI() returns(address)
-func (_Wrappeda0gibase *Wrappeda0gibaseTransactor) GetWA0GI(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Wrappeda0gibase.contract.Transact(opts, "getWA0GI")
-}
-
-// GetWA0GI is a paid mutator transaction binding the contract method 0xa9283a7a.
-//
-// Solidity: function getWA0GI() returns(address)
-func (_Wrappeda0gibase *Wrappeda0gibaseSession) GetWA0GI() (*types.Transaction, error) {
-	return _Wrappeda0gibase.Contract.GetWA0GI(&_Wrappeda0gibase.TransactOpts)
-}
-
-// GetWA0GI is a paid mutator transaction binding the contract method 0xa9283a7a.
-//
-// Solidity: function getWA0GI() returns(address)
-func (_Wrappeda0gibase *Wrappeda0gibaseTransactorSession) GetWA0GI() (*types.Transaction, error) {
-	return _Wrappeda0gibase.Contract.GetWA0GI(&_Wrappeda0gibase.TransactOpts)
-}
-
 // Mint is a paid mutator transaction binding the contract method 0x40c10f19.
 //
 // Solidity: function mint(address minter, uint256 amount) returns()

precompiles/wrapped-a0gi-base/errors.go

@@ -0,0 +1,5 @@
+package wrappeda0gibase
+
+const (
+	ErrSenderNotWA0GI = "sender is not WA0GI"
+)

precompiles/wrapped-a0gi-base/query.go

@@ -0,0 +1,38 @@
+package wrappeda0gibase
+
+import (
+	"math/big"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/vm"
+)
+
+func (w *WrappedA0giBasePrecompile) GetW0GI(ctx sdk.Context, _ *vm.EVM, method *abi.Method, args []interface{}) ([]byte, error) {
+	req, err := NewGetW0GIRequest(args)
+	if err != nil {
+		return nil, err
+	}
+	response, err := w.wrappeda0gibaseKeeper.GetWA0GI(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return method.Outputs.Pack(common.BytesToAddress(response.Address))
+}
+
+func (w *WrappedA0giBasePrecompile) MinterSupply(ctx sdk.Context, _ *vm.EVM, method *abi.Method, args []interface{}) ([]byte, error) {
+	req, err := NewMinterSupplyRequest(args)
+	if err != nil {
+		return nil, err
+	}
+	response, err := w.wrappeda0gibaseKeeper.MinterSupply(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	supply := Supply{
+		Cap:   new(big.Int).SetBytes(response.Cap),
+		Total: new(big.Int).SetBytes(response.Supply),
+	}
+	return method.Outputs.Pack(supply)
+}

precompiles/wrapped-a0gi-base/tx.go

@@ -0,0 +1,62 @@
+package wrappeda0gibase
+
+import (
+	"errors"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/vm"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/evmos/ethermint/x/evm/statedb"
+)
+
+func (w *WrappedA0giBasePrecompile) Mint(
+	ctx sdk.Context,
+	evm *vm.EVM,
+	stateDB *statedb.StateDB,
+	contract *vm.Contract,
+	method *abi.Method,
+	args []interface{},
+) ([]byte, error) {
+	msg, err := NewMsgMint(args)
+	if err != nil {
+		return nil, err
+	}
+	// validation
+	wa0gi := common.BytesToAddress(w.wrappeda0gibaseKeeper.GetWA0GIAddress(ctx))
+	if contract.CallerAddress != wa0gi {
+		return nil, errors.New(ErrSenderNotWA0GI)
+	}
+	// execute
+	_, err = w.wrappeda0gibaseKeeper.Mint(sdk.WrapSDKContext(ctx), msg)
+	if err != nil {
+		return nil, err
+	}
+	return method.Outputs.Pack()
+}
+
+func (w *WrappedA0giBasePrecompile) Burn(
+	ctx sdk.Context,
+	evm *vm.EVM,
+	stateDB *statedb.StateDB,
+	contract *vm.Contract,
+	method *abi.Method,
+	args []interface{},
+) ([]byte, error) {
+	msg, err := NewMsgBurn(args)
+	if err != nil {
+		return nil, err
+	}
+	// validation
+	wa0gi := common.BytesToAddress(w.wrappeda0gibaseKeeper.GetWA0GIAddress(ctx))
+	if contract.CallerAddress != wa0gi {
+		return nil, errors.New(ErrSenderNotWA0GI)
+	}
+	// execute
+	_, err = w.wrappeda0gibaseKeeper.Burn(sdk.WrapSDKContext(ctx), msg)
+	if err != nil {
+		return nil, err
+	}
+	return method.Outputs.Pack()
+}

precompiles/wrapped-a0gi-base/types.go

@@ -1,8 +1,51 @@
 package wrappeda0gibase
 
-import "math/big"
+import (
+	"fmt"
+	"math/big"
+
+	precompiles_common "github.com/0glabs/0g-chain/precompiles/common"
+	"github.com/0glabs/0g-chain/x/wrapped-a0gi-base/types"
+	"github.com/ethereum/go-ethereum/common"
+)
 
 type Supply = struct {
 	Cap   *big.Int "json:\"cap\""
 	Total *big.Int "json:\"total\""
 }
+
+func NewGetW0GIRequest(args []interface{}) (*types.GetWA0GIRequest, error) {
+	if len(args) != 0 {
+		return nil, fmt.Errorf(precompiles_common.ErrInvalidNumberOfArgs, 0, len(args))
+	}
+	return &types.GetWA0GIRequest{}, nil
+}
+
+func NewMinterSupplyRequest(args []interface{}) (*types.MinterSupplyRequest, error) {
+	if len(args) != 1 {
+		return nil, fmt.Errorf(precompiles_common.ErrInvalidNumberOfArgs, 1, len(args))
+	}
+	return &types.MinterSupplyRequest{
+		Address: args[0].(common.Address).Bytes(),
+	}, nil
+}
+
+func NewMsgMint(args []interface{}) (*types.MsgMint, error) {
+	if len(args) != 2 {
+		return nil, fmt.Errorf(precompiles_common.ErrInvalidNumberOfArgs, 1, len(args))
+	}
+	return &types.MsgMint{
+		Minter: args[0].(common.Address).Bytes(),
+		Amount: args[1].(*big.Int).Bytes(),
+	}, nil
+}
+
+func NewMsgBurn(args []interface{}) (*types.MsgBurn, error) {
+	if len(args) != 2 {
+		return nil, fmt.Errorf(precompiles_common.ErrInvalidNumberOfArgs, 1, len(args))
+	}
+	return &types.MsgBurn{
+		Minter: args[0].(common.Address).Bytes(),
+		Amount: args[1].(*big.Int).Bytes(),
+	}, nil
+}

precompiles/wrapped-a0gi-base/wrapped_a0gi_base.go

@@ -5,7 +5,7 @@ import (
 
 	precompiles_common "github.com/0glabs/0g-chain/precompiles/common"
 	wrappeda0gibasekeeper "github.com/0glabs/0g-chain/x/wrapped-a0gi-base/keeper"
-	"github.com/cosmos/cosmos-sdk/store/types"
+	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -13,6 +13,13 @@ import (
 
 const (
 	PrecompileAddress = "0x0000000000000000000000000000000000001002"
+
+	// txs
+	WrappedA0GIBaseFunctionMint = "mint"
+	WrappedA0GIBaseFunctionBurn = "burn"
+	// queries
+	WrappedA0GIBaseFunctionGetWA0GI     = "getWA0GI"
+	WrappedA0GIBaseFunctionMinterSupply = "minterSupply"
 )
 
 var _ vm.PrecompiledContract = &WrappedA0giBasePrecompile{}
@@ -25,17 +32,23 @@ type WrappedA0giBasePrecompile struct {
 
 // Abi implements common.PrecompileCommon.
 func (w *WrappedA0giBasePrecompile) Abi() *abi.ABI {
-	panic("unimplemented")
+	return &w.abi
 }
 
 // IsTx implements common.PrecompileCommon.
-func (w *WrappedA0giBasePrecompile) IsTx(string) bool {
+func (w *WrappedA0giBasePrecompile) IsTx(method string) bool {
-	panic("unimplemented")
+	switch method {
+	case WrappedA0GIBaseFunctionMint,
+		WrappedA0GIBaseFunctionBurn:
+		return true
+	default:
+		return false
+	}
 }
 
 // KVGasConfig implements common.PrecompileCommon.
-func (w *WrappedA0giBasePrecompile) KVGasConfig() types.GasConfig {
+func (w *WrappedA0giBasePrecompile) KVGasConfig() storetypes.GasConfig {
-	panic("unimplemented")
+	return storetypes.KVGasConfig()
 }
 
 // Address implements vm.PrecompiledContract.
@@ -45,7 +58,7 @@ func (w *WrappedA0giBasePrecompile) Address() common.Address {
 
 // RequiredGas implements vm.PrecompiledContract.
 func (w *WrappedA0giBasePrecompile) RequiredGas(input []byte) uint64 {
-	panic("unimplemented")
+	return 0
 }
 
 func NewWrappedA0giBasePrecompile(wrappeda0gibaseKeeper wrappeda0gibasekeeper.Keeper) (*WrappedA0giBasePrecompile, error) {
@@ -61,5 +74,33 @@ func NewWrappedA0giBasePrecompile(wrappeda0gibaseKeeper wrappeda0gibasekeeper.Ke
 
 // Run implements vm.PrecompiledContract.
 func (w *WrappedA0giBasePrecompile) Run(evm *vm.EVM, contract *vm.Contract, readonly bool) ([]byte, error) {
-	panic("unimplemented")
+	ctx, stateDB, method, initialGas, args, err := precompiles_common.InitializePrecompileCall(w, evm, contract, readonly)
+	if err != nil {
+		return nil, err
+	}
+
+	var bz []byte
+	switch method.Name {
+	// queries
+	case WrappedA0GIBaseFunctionGetWA0GI:
+		bz, err = w.GetW0GI(ctx, evm, method, args)
+	case WrappedA0GIBaseFunctionMinterSupply:
+		bz, err = w.MinterSupply(ctx, evm, method, args)
+	// txs
+	case WrappedA0GIBaseFunctionMint:
+		bz, err = w.Mint(ctx, evm, stateDB, contract, method, args)
+	case WrappedA0GIBaseFunctionBurn:
+		bz, err = w.Burn(ctx, evm, stateDB, contract, method, args)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	cost := ctx.GasMeter().GasConsumed() - initialGas
+
+	if !contract.UseGas(cost) {
+		return nil, vm.ErrOutOfGas
+	}
+	return bz, nil
 }