Trait pallet_balances::pallet::DefaultConfig

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pub trait DefaultConfig: DefaultConfig {
    type RuntimeEvent;
    type RuntimeHoldReason;
    type RuntimeFreezeReason;
    type WeightInfo: WeightInfo;
    type Balance: Parameter + Member + AtLeast32BitUnsigned + Codec + Default + Copy + MaybeSerializeDeserialize + Debug + MaxEncodedLen + TypeInfo + FixedPointOperand;
    type DustRemoval;
    type ExistentialDeposit;
    type ReserveIdentifier: Parameter + Member + MaxEncodedLen + Ord + Copy;
    type FreezeIdentifier: Parameter + Member + MaxEncodedLen + Copy;
    type MaxLocks: Get<u32>;
    type MaxReserves: Get<u32>;
    type MaxFreezes: Get<u32>;
}

Expand description

Based on Config. Auto-generated by #[pallet::config(with_default)]. Can be used in tandem with #[register_default_config] and #[derive_impl] to derive test config traits based on existing pallet config traits in a safe and developer-friendly way.

See here for more information and caveats about the auto-generated DefaultConfig trait and how it is generated.

Required Associated Types§

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type RuntimeEvent

The overarching event type.

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type RuntimeHoldReason

The overarching hold reason.

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type RuntimeFreezeReason

The overarching freeze reason.

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type WeightInfo: WeightInfo

Weight information for extrinsics in this pallet.

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type Balance: Parameter + Member + AtLeast32BitUnsigned + Codec + Default + Copy + MaybeSerializeDeserialize + Debug + MaxEncodedLen + TypeInfo + FixedPointOperand

The balance of an account.

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type DustRemoval

Handler for the unbalanced reduction when removing a dust account.

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type ExistentialDeposit

The minimum amount required to keep an account open. MUST BE GREATER THAN ZERO!

If you really need it to be zero, you can enable the feature insecure_zero_ed for this pallet. However, you do so at your own risk: this will open up a major DoS vector. In case you have multiple sources of provider references, you may also get unexpected behaviour if you set this to zero.

Bottom line: Do yourself a favour and make it at least one!

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