Trait polkadot_sdk_frame::traits::EnsureInherentsAreFirst

pub trait EnsureInherentsAreFirst<Block>: IsInherent<<Block as Block>::Extrinsic>
where
    Block: Block,
{
    // Required method
    fn ensure_inherents_are_first(block: &Block) -> Result<u32, u32>;
}

A trait to ensure the inherent are before non-inherent in a block.

This is typically implemented on runtime, through construct_runtime!.

Required Methods

fn ensure_inherents_are_first(block: &Block) -> Result<u32, u32>

Ensure the position of inherent is correct, i.e. they are before non-inherents.

On error return the index of the inherent with invalid position (counting from 0). On success it returns the index of the last inherent. 0 therefore means that there are no inherents.

Object Safety

This trait is not object safe.

Implementors