github.com/fibonacci-chain/fbc@v0.0.0-20231124064014-c7636198c1e9/libs/cosmos-sdk/x/auth/ante/ante.go (about)

     1  package ante
     2  
     3  import (
     4  	sdk "github.com/fibonacci-chain/fbc/libs/cosmos-sdk/types"
     5  	"github.com/fibonacci-chain/fbc/libs/cosmos-sdk/x/auth/keeper"
     6  	"github.com/fibonacci-chain/fbc/libs/cosmos-sdk/x/auth/types"
     7  )
     8  
     9  // NewAnteHandler returns an AnteHandler that checks and increments sequence
    10  // numbers, checks signatures & account numbers, and deducts fees from the first
    11  // signer.
    12  func NewAnteHandler(ak keeper.AccountKeeper, supplyKeeper types.SupplyKeeper, sigGasConsumer SignatureVerificationGasConsumer) sdk.AnteHandler {
    13  	return sdk.ChainAnteDecorators(
    14  		NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
    15  		NewMempoolFeeDecorator(),
    16  		NewValidateBasicDecorator(),
    17  		NewValidateMemoDecorator(ak),
    18  		NewConsumeGasForTxSizeDecorator(ak),
    19  		NewSetPubKeyDecorator(ak), // SetPubKeyDecorator must be called before all signature verification decorators
    20  		NewValidateSigCountDecorator(ak),
    21  		NewDeductFeeDecorator(ak, supplyKeeper),
    22  		NewSigGasConsumeDecorator(ak, sigGasConsumer),
    23  		NewSigVerificationDecorator(ak),
    24  		NewIncrementSequenceDecorator(ak), // innermost AnteDecorator
    25  	)
    26  }