Module frame_support::pallet_prelude[−][src]

Prelude to be used alongside pallet macro, for ease of use.

Re-exports

`pub use frame_support::traits::GenesisBuild;`
`pub use frame_support::debug;`
`pub use frame_support::ensure;`
`pub use frame_support::storage;`
`pub use frame_support::traits::Get;`
`pub use frame_support::traits::Hooks;`
`pub use frame_support::traits::IsType;`
`pub use frame_support::traits::GetPalletVersion;`
`pub use frame_support::traits::EnsureOrigin;`
`pub use frame_support::dispatch::DispatchResultWithPostInfo;`
`pub use frame_support::dispatch::Parameter;`
`pub use frame_support::weights::DispatchClass;`
`pub use frame_support::weights::Pays;`
`pub use frame_support::weights::Weight;`
`pub use frame_support::storage::types::ValueQuery;`
`pub use frame_support::storage::types::OptionQuery;`

Blake2_128	Hash storage keys with blake2 128
Blake2_128Concat	Hash storage keys with `concat(blake2_128(key), key)`
Blake2_256	Hash storage keys with blake2 256
Identity	Store the key directly.
InherentData	Inherent data to include in a block.
PhantomData	Zero-sized type used to mark things that “act like” they own a `T`.
StorageDoubleMap	A type that allow to store values for `(key1, key2)` couple. Similar to `StorageMap` but allow to iterate and remove value associated to first key.
StorageMap	A type that allow to store value for given key. Allowing to insert/remove/iterate on values.
StorageValue	A type that allow to store a value.
Twox64Concat	Hash storage keys with `concat(twox64(key), key)`
Twox128	Hash storage keys with twox 128
Twox256	Hash storage keys with twox 256
ValidTransaction	Information concerning a valid transaction.

DispatchError	Reason why a dispatch call failed.
InvalidTransaction	An invalid transaction validity.
TransactionSource	The source of the transaction.
TransactionValidityError	Errors that can occur while checking the validity of a transaction.
UnknownTransaction	An unknown transaction validity.

Decode	Trait that allows zero-copy read of value-references from slices in LE format.
Encode	Trait that allows zero-copy write of value-references to slices in LE format.
MaybeSerializeDeserialize	A type that implements Serialize, DeserializeOwned and Debug when in std environment.
Member	A type that can be used in runtime structures.
ProvideInherent	A pallet that provides or verifies an inherent extrinsic.
ValidateUnsigned	Something that can validate unsigned extrinsics for the transaction pool.

InherentIdentifier	An identifier for an inherent.
TransactionLongevity	Minimum number of blocks a transaction will remain valid for. `TransactionLongevity::max_value()` means “forever”.
TransactionPriority	Priority for a transaction. Additive. Higher is better.
TransactionTag	Tag for a transaction. No two transactions with the same tag should be placed on-chain.
TransactionValidity	Information on a transaction’s validity and, if valid, on how it relates to other transactions.

CloneNoBound	Derive `Clone` but do not bound any generic. Docs are at `frame_support::CloneNoBound`.
DebugNoBound	Derive `Debug` but do not bound any generics. Docs are at `frame_support::DeriveNoBounds`.
Decode	Derive `parity_scale_codec::Decode` and for struct and enum.
Encode	Derive `parity_scale_codec::Encode` and `parity_scale_codec::EncodeLike` for struct and enum.
EqNoBound	derive Eq but do no bound any generic. Docs are at `frame_support::EqNoBound`.
PartialEqNoBound	Derive `PartialEq` but do not bound any generic. Docs are at `frame_support::PartialEqNoBound`.
RuntimeDebug
RuntimeDebugNoBound	Derive `Debug`, if `std` is enabled it uses `frame_support::DebugNoBound`, if `std` is not enabled it just returns `"<stripped>"`. This behaviour is useful to prevent bloating the runtime WASM blob from unneeded code.