2019-07-29 08:27:01 -07:00
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package ante
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2018-01-12 11:49:53 -08:00
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import (
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2018-12-10 06:27:25 -08:00
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sdk "github.com/cosmos/cosmos-sdk/types"
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2019-07-29 08:27:01 -07:00
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"github.com/cosmos/cosmos-sdk/x/auth/keeper"
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2019-06-28 13:11:27 -07:00
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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2018-01-12 11:49:53 -08:00
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)
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2018-12-04 08:42:15 -08:00
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// NewAnteHandler returns an AnteHandler that checks and increments sequence
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// numbers, checks signatures & account numbers, and deducts fees from the first
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// signer.
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2019-07-29 08:27:01 -07:00
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func NewAnteHandler(ak keeper.AccountKeeper, supplyKeeper types.SupplyKeeper, sigGasConsumer SignatureVerificationGasConsumer) sdk.AnteHandler {
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2019-10-10 05:46:09 -07:00
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return sdk.ChainAnteDecorators(
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NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
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NewMempoolFeeDecorator(),
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NewValidateBasicDecorator(),
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NewValidateMemoDecorator(ak),
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NewConsumeGasForTxSizeDecorator(ak),
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NewSetPubKeyDecorator(ak), // SetPubKeyDecorator must be called before all signature verification decorators
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NewValidateSigCountDecorator(ak),
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NewDeductFeeDecorator(ak, supplyKeeper),
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NewSigGasConsumeDecorator(ak, sigGasConsumer),
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NewSigVerificationDecorator(ak),
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NewIncrementSequenceDecorator(ak), // innermost AnteDecorator
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2018-12-20 11:09:43 -08:00
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)
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2018-09-26 11:34:01 -07:00
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}
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