Trait ContractTraitDefinition

pub trait ContractTraitDefinition {
    const METADATA: &[u8];
}

A trait that is implemented for dyn ContractTrait and includes constants related to trait definition.

dyn ContractTrait here is a bit of a hack that allows treating a trait as a type. These constants specifically can’t be implemented on a trait itself because that’ll make trait not object safe, which is needed for ContractTrait that uses a similar hack with dyn ContractTrait.

Do not implement this trait explicitly! Implementation is automatically generated by the macro which generates trait definition. This trait is required, but not sufficient for proper trait implementation, use #[contract] attribute macro instead.

NOTE: It is unlikely to be necessary to interact with this directly.

Required Associated Constants

const METADATA: &[u8]

Trait metadata, see ContractMetadataKind for encoding details“] Trait metadata, see ContractMetadataKind for encoding details“]

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.

Implementors