Trait AsMetadata

pub trait AsMetadata<E: ExternalMemory>: Debug + Sized {
    type TypeRegistry: ResolveType<E>;
    type MetaStructureError: Debug + Display + Eq;

    // Required methods
    fn types(&self) -> Self::TypeRegistry;
    fn spec_name_version(
        &self,
    ) -> Result<SpecNameVersion, Self::MetaStructureError>;
    fn call_ty(
        &self,
    ) -> Result<UntrackedSymbol<TypeId>, Self::MetaStructureError>;
    fn signed_extensions(
        &self,
    ) -> Result<Vec<SignedExtensionMetadata>, Self::MetaStructureError>;
}

Metadata sufficient for parsing of signable transactions, storage data, and bytes with a known type.

Required Associated Types

type TypeRegistry: ResolveType<E>

type MetaStructureError: Debug + Display + Eq

Required Methods

fn types(&self) -> Self::TypeRegistry

fn spec_name_version(&self) -> Result<SpecNameVersion, Self::MetaStructureError>

fn call_ty(&self) -> Result<UntrackedSymbol<TypeId>, Self::MetaStructureError>

fn signed_extensions( &self, ) -> Result<Vec<SignedExtensionMetadata>, Self::MetaStructureError>

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.

Implementations on Foreign Types

impl<E: ExternalMemory> AsMetadata<E> for RuntimeMetadataV14

type TypeRegistry = PortableRegistry

type MetaStructureError = MetaStructureErrorV14

fn types(&self) -> Self::TypeRegistry

fn spec_name_version(&self) -> Result<SpecNameVersion, Self::MetaStructureError>

fn call_ty(&self) -> Result<UntrackedSymbol<TypeId>, Self::MetaStructureError>

fn signed_extensions( &self, ) -> Result<Vec<SignedExtensionMetadata>, Self::MetaStructureError>

impl<E: ExternalMemory> AsMetadata<E> for RuntimeMetadataV15

type TypeRegistry = PortableRegistry

type MetaStructureError = MetaVersionErrorPallets

fn types(&self) -> Self::TypeRegistry

fn spec_name_version(&self) -> Result<SpecNameVersion, Self::MetaStructureError>

fn call_ty(&self) -> Result<UntrackedSymbol<TypeId>, Self::MetaStructureError>

fn signed_extensions( &self, ) -> Result<Vec<SignedExtensionMetadata>, Self::MetaStructureError>

Implementors