pub trait TypeInfo {
    type Identity: 'static + ?Sized;

    // Required method
    fn type_info() -> Type<MetaForm>;
}
Expand description

Implementors return their meta type information.

Required Associated Types§

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type Identity: 'static + ?Sized

The type identifying for which type info is provided.

Note

This is used to uniquely identify a type via core::any::TypeId::of. In most cases it will just be Self, but can be used to unify different types which have the same encoded representation e.g. reference types Box<T>, &T and &mut T.

Required Methods§

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fn type_info() -> Type<MetaForm>

Returns the static type identifier for Self.

Implementations on Foreign Types§

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impl<T> TypeInfo for Cow<'static, T>where T: ToOwned + TypeInfo + 'static + ?Sized,

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type Identity = Cow<'static, T>

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fn type_info() -> Type<MetaForm>

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impl<T> TypeInfo for Option<T>where T: TypeInfo + 'static,

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impl TypeInfo for NonZeroI16

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impl<A, B, C, D, E, F, G> TypeInfo for (A, B, C, D, E, F, G)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static,

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impl<T> TypeInfo for Compact<T>where T: TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H, I> TypeInfo for (A, B, C, D, E, F, G, H, I)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static,

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impl<T> TypeInfo for VecDeque<T, Global>where T: TypeInfo + 'static,

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impl<T> TypeInfo for Box<T, Global>where T: TypeInfo + 'static + ?Sized,

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impl<A, B, C, D, E, F, G, H, I, J> TypeInfo for (A, B, C, D, E, F, G, H, I, J)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static,

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impl TypeInfo for u64

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impl TypeInfo for NonZeroI128

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impl TypeInfo for ()

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static, P: TypeInfo + 'static, Q: TypeInfo + 'static, R: TypeInfo + 'static,

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impl<T> TypeInfo for &mut Twhere T: TypeInfo + 'static + ?Sized,

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impl<T> TypeInfo for &Twhere T: TypeInfo + 'static + ?Sized,

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impl TypeInfo for NonZeroI8

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impl TypeInfo for String

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impl TypeInfo for NonZeroU32

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impl TypeInfo for i16

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impl<T> TypeInfo for BTreeSet<T, Global>where T: TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H> TypeInfo for (A, B, C, D, E, F, G, H)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static, P: TypeInfo + 'static,

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impl TypeInfo for u32

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impl TypeInfo for i32

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impl TypeInfo for NonZeroI32

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static,

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impl<A, B, C> TypeInfo for (A, B, C)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static,

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impl TypeInfo for Msb0

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impl<T, O> TypeInfo for BitVec<T, O>where T: BitStore + TypeInfo + 'static, O: BitOrder + TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H, I, J, K> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static,

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impl<T> TypeInfo for [T]where T: TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static, P: TypeInfo + 'static, Q: TypeInfo + 'static, R: TypeInfo + 'static, S: TypeInfo + 'static,

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impl TypeInfo for str

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impl TypeInfo for u16

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static,

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impl<A, B, C, D, E, F, G, H, I, J, K, L> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static,

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impl TypeInfo for NonZeroU16

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impl TypeInfo for i8

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static, P: TypeInfo + 'static, Q: TypeInfo + 'static,

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impl TypeInfo for NonZeroU8

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impl TypeInfo for u128

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impl TypeInfo for char

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impl<T, const N: usize> TypeInfo for [T; N]where T: TypeInfo + 'static,

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impl<A, B, C, D, E, F> TypeInfo for (A, B, C, D, E, F)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static,

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impl<A, B, C, D, E> TypeInfo for (A, B, C, D, E)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static,

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impl TypeInfo for NonZeroU128

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impl<K, V> TypeInfo for BTreeMap<K, V, Global>where K: TypeInfo + 'static, V: TypeInfo + 'static,

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impl TypeInfo for bool

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impl<Idx> TypeInfo for RangeInclusive<Idx>where Idx: TypeInfo + 'static + PartialOrd<Idx> + Debug,

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impl<A, B> TypeInfo for (A, B)where A: TypeInfo + 'static, B: TypeInfo + 'static,

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impl TypeInfo for Lsb0

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impl<Idx> TypeInfo for Range<Idx>where Idx: TypeInfo + 'static + PartialOrd<Idx> + Debug,

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static,

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impl<A> TypeInfo for (A,)where A: TypeInfo + 'static,

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impl TypeInfo for i128

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impl TypeInfo for NonZeroU64

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impl<A, B, C, D> TypeInfo for (A, B, C, D)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static,

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impl TypeInfo for i64

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impl<A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T> TypeInfo for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T)where A: TypeInfo + 'static, B: TypeInfo + 'static, C: TypeInfo + 'static, D: TypeInfo + 'static, E: TypeInfo + 'static, F: TypeInfo + 'static, G: TypeInfo + 'static, H: TypeInfo + 'static, I: TypeInfo + 'static, J: TypeInfo + 'static, K: TypeInfo + 'static, L: TypeInfo + 'static, M: TypeInfo + 'static, N: TypeInfo + 'static, O: TypeInfo + 'static, P: TypeInfo + 'static, Q: TypeInfo + 'static, R: TypeInfo + 'static, S: TypeInfo + 'static, T: TypeInfo + 'static,

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impl TypeInfo for NonZeroI64

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impl TypeInfo for u8

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impl TypeInfo for Public

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impl TypeInfo for Signature

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impl TypeInfo for Signature

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impl TypeInfo for AccountId32

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impl TypeInfo for Public

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impl TypeInfo for OpaqueNetworkState

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impl TypeInfo for Public

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impl TypeInfo for KeyTypeId

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impl TypeInfo for OpaquePeerId

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impl TypeInfo for OpaqueMultiaddr

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impl TypeInfo for Signature

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impl TypeInfo for H768

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impl TypeInfo for H256

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impl TypeInfo for U128

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impl TypeInfo for U512

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impl TypeInfo for H384

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impl TypeInfo for H512

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impl TypeInfo for H128

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impl TypeInfo for H160

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impl TypeInfo for U256

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impl TypeInfo for StorageProof

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impl TypeInfo for CompactProof

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impl TypeInfo for TransactionalError

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impl TypeInfo for ModuleError

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impl TypeInfo for MultiSigner

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impl TypeInfo for DispatchError

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impl TypeInfo for OpaqueExtrinsic

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impl<Info> TypeInfo for DispatchErrorWithPostInfo<Info>where Info: Eq + PartialEq<Info> + Clone + Copy + Encode + Decode + Printable + TypeInfo + 'static,

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impl<Address, Call, Signature, Extra> TypeInfo for UncheckedExtrinsic<Address, Call, Signature, Extra>where Address: StaticTypeInfo, Call: StaticTypeInfo, Signature: StaticTypeInfo, Extra: SignedExtension + StaticTypeInfo,

Manual TypeInfo implementation because of custom encoding. The data is a valid encoded Vec<u8>, but requires some logic to extract the signature and payload.

See UncheckedExtrinsic::encode and UncheckedExtrinsic::decode.

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type Identity = UncheckedExtrinsic<Address, Call, Signature, Extra>

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fn type_info() -> Type<MetaForm>

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impl TypeInfo for RuntimeString

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impl TypeInfo for Keccak256

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impl TypeInfo for TokenError

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impl<Call, Extra> TypeInfo for TestXt<Call, Extra>where Option<(u64, Extra)>: TypeInfo + 'static, Call: TypeInfo + 'static, Extra: TypeInfo + 'static,

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type Identity = TestXt<Call, Extra>

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fn type_info() -> Type<MetaForm>

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impl TypeInfo for MultiSignature

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impl TypeInfo for DigestItem

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impl TypeInfo for UintAuthorityId

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impl TypeInfo for Digest

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impl TypeInfo for TestSignature

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impl TypeInfo for Era

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impl<Number, Hash> TypeInfo for Header<Number, Hash>where Number: Copy + Into<U256> + TryFrom<U256> + HasCompact + TypeInfo + 'static, Hash: Hash + TypeInfo + 'static, <Hash as Hash>::Output: TypeInfo + 'static,

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type Identity = Header<Number, Hash>

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fn type_info() -> Type<MetaForm>

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impl TypeInfo for ModuleError

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impl TypeInfo for PiecewiseLinear<'static>

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impl TypeInfo for BlakeTwo256

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impl<AccountId, AccountIndex> TypeInfo for MultiAddress<AccountId, AccountIndex>where AccountId: TypeInfo + 'static, AccountIndex: HasCompact + TypeInfo + 'static,

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type Identity = MultiAddress<AccountId, AccountIndex>

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fn type_info() -> Type<MetaForm>

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impl TypeInfo for FixedU128

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impl TypeInfo for Percent

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impl TypeInfo for Perquintill

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impl TypeInfo for ArithmeticError

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impl TypeInfo for Perbill

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impl TypeInfo for Permill

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impl TypeInfo for FixedU64

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impl TypeInfo for PerU16

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impl TypeInfo for FixedI64

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impl TypeInfo for FixedI128

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impl TypeInfo for Signature

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impl TypeInfo for Public

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impl TypeInfo for Signature

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impl TypeInfo for Public

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impl TypeInfo for Public

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impl TypeInfo for Signature

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impl<Reporter, Offender> TypeInfo for OffenceDetails<Reporter, Offender>where Offender: TypeInfo + 'static, Vec<Reporter, Global>: TypeInfo + 'static, Reporter: TypeInfo + 'static,

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type Identity = OffenceDetails<Reporter, Offender>

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fn type_info() -> Type<MetaForm>

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impl TypeInfo for DisableStrategy

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impl TypeInfo for RuntimeVersion

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impl TypeInfo for Never

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impl TypeInfo for Void

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impl TypeInfo for frame_support::pallet_prelude::DispatchError

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impl TypeInfo for InvalidTransaction

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impl TypeInfo for TransactionValidityError

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impl TypeInfo for UnknownTransaction

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impl TypeInfo for ProcessMessageError

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impl TypeInfo for LookupError

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impl TypeInfo for BalanceStatus

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impl TypeInfo for DispatchClass

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impl TypeInfo for Pays

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impl TypeInfo for Weight

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impl TypeInfo for PalletId

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impl TypeInfo for OldWeight

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impl TypeInfo for RuntimeDbWeight

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impl TypeInfo for DispatchInfo

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impl TypeInfo for PostDispatchInfo

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impl<'a, T, S> TypeInfo for BoundedSlice<'a, T, S>where &'a [T]: TypeInfo + 'static, PhantomData<S>: TypeInfo + 'static, T: TypeInfo + 'static, S: 'static,

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type Identity = BoundedSlice<'a, T, S>

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impl<AccountId> TypeInfo for AttributeNamespace<AccountId>where AccountId: TypeInfo + 'static,

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type Identity = AttributeNamespace<AccountId>

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impl<AccountId> TypeInfo for RawOrigin<AccountId>where AccountId: TypeInfo + 'static,

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type Identity = RawOrigin<AccountId>

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impl<Balance> TypeInfo for WeightToFeeCoefficient<Balance>where Balance: TypeInfo + 'static,

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impl<BlockNumber> TypeInfo for DispatchTime<BlockNumber>where BlockNumber: TypeInfo + 'static,

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type Identity = DispatchTime<BlockNumber>

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impl<K, V, S> TypeInfo for BoundedBTreeMap<K, V, S>where BTreeMap<K, V, Global>: TypeInfo + 'static, PhantomData<S>: TypeInfo + 'static, K: TypeInfo + 'static, V: TypeInfo + 'static, S: 'static,

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type Identity = BoundedBTreeMap<K, V, S>

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impl<T> TypeInfo for Bounded<T>where PhantomData<T>: TypeInfo + 'static, T: TypeInfo + 'static,

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impl<T> TypeInfo for PhantomData<T>

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impl<T> TypeInfo for PerDispatchClass<T>where T: TypeInfo + 'static,

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impl<T> TypeInfo for Vec<T, Global>where T: TypeInfo + 'static,

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impl<T, E> TypeInfo for Result<T, E>where T: TypeInfo + 'static, E: TypeInfo + 'static,

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type Identity = Result<T, E>

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impl<T, Hash> TypeInfo for MaybeHashed<T, Hash>where T: TypeInfo + 'static, Hash: TypeInfo + 'static,

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type Identity = MaybeHashed<T, Hash>

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impl<T, S> TypeInfo for BoundedBTreeSet<T, S>where BTreeSet<T, Global>: TypeInfo + 'static, PhantomData<S>: TypeInfo + 'static, T: TypeInfo + 'static, S: 'static,

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impl<T, S> TypeInfo for BoundedVec<T, S>where Vec<T, Global>: TypeInfo + 'static, PhantomData<S>: TypeInfo + 'static, T: TypeInfo + 'static, S: 'static,

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type Identity = BoundedVec<T, S>

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impl<T, S> TypeInfo for WeakBoundedVec<T, S>where Vec<T, Global>: TypeInfo + 'static, PhantomData<S>: TypeInfo + 'static, T: TypeInfo + 'static, S: 'static,

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impl<T: TypeInfo + 'static> TypeInfo for WrapperKeepOpaque<T>

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impl<T: TypeInfo + 'static> TypeInfo for WrapperOpaque<T>