Trait ConstantTypeInfo 

pub trait ConstantTypeInfo {
    type TypeId: Clone;

    // Required methods
    fn constant_info(
        &self,
        pallet_name: &str,
        constant_name: &str,
    ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>;
    fn constants(&self) -> impl Iterator<Item = Entry<'_>>;

    // Provided method
    fn constants_in_pallet(
        &self,
        pallet: &str,
    ) -> impl Iterator<Item = Cow<'_, str>> { ... }
}

This can be implemented for anything capable of providing Constant information.

Required Associated Types

type TypeId: Clone

The type of type IDs that we are using to obtain type information.

Required Methods

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

Get information about a constant

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

Iterate over all of the available Constants.

Provided Methods

fn constants_in_pallet( &self, pallet: &str, ) -> impl Iterator<Item = Cow<'_, str>>

Iterate over all of the available constants in a given pallet.

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 ConstantTypeInfo for RuntimeMetadataV8

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV9

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV10

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV11

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV12

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV13

type TypeId = LookupName

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV14

type TypeId = u32

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV15

type TypeId = u32

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

impl ConstantTypeInfo for RuntimeMetadataV16

type TypeId = u32

fn constant_info( &self, pallet_name: &str, constant_name: &str, ) -> Result<ConstantInfo<'_, Self::TypeId>, ConstantInfoError<'_>>

fn constants(&self) -> impl Iterator<Item = Entry<'_>>

fn constants_in_pallet( &self, pallet_name: &str, ) -> impl Iterator<Item = Cow<'_, str>>

Implementors