Trait ColumnSelectorTwo 

pub trait ColumnSelectorTwo {
    type FIRST: Decompress;
    type SECOND: Decompress;

    const MASK: usize;
}

Available on crate feature provider only.

Trait for specifying a mask to select two column values.

Required Associated Constants

const MASK: usize

Mask to obtain desired values, should correspond to the order of columns in a static_file.

Required Associated Types

type FIRST: Decompress

First desired column value

type SECOND: Decompress

Second desired column value

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

impl ColumnSelectorTwo for TDWithHashMask

where <HeaderTerminalDifficulties as Table>::Value: Send + Sync + Debug + Decompress, FixedBytes<32>: Send + Sync + Debug + Decompress,

const MASK: usize = 6usize

type FIRST = <HeaderTerminalDifficulties as Table>::Value

type SECOND = FixedBytes<32>

impl<H> ColumnSelectorTwo for HeaderWithHashMask<H>

where H: Send + Sync + Debug + Decompress, FixedBytes<32>: Send + Sync + Debug + Decompress,

const MASK: usize = 5usize

type FIRST = H

type SECOND = FixedBytes<32>