Trait PalletError
pub trait PalletError: Encode + Decode {
const MAX_ENCODED_SIZE: usize;
}Expand description
Trait indicating that the implementing type is going to be included as a field in a variant of
the #[pallet::error] enum type.
§Notes
The pallet error enum has a maximum encoded size as defined by
[frame_support::MAX_MODULE_ERROR_ENCODED_SIZE]. If the pallet error type exceeds this size
limit, a static assertion during compilation will fail. The compilation error will be in the
format of error[E0080]: evaluation of constant value failed due to the usage of
const assertions.
Required Associated Constants§
const MAX_ENCODED_SIZE: usize
const MAX_ENCODED_SIZE: usize
The maximum encoded size for the implementing type.
This will be used to check whether the pallet error type is less than or equal to
[frame_support::MAX_MODULE_ERROR_ENCODED_SIZE], and if it is, a compilation error will be
thrown.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.