Enum CustomHardfork 

#[non_exhaustive]
pub enum CustomHardfork {
    BasicUpgrade,
    AdvancedUpgrade,
}

Custom hardforks for the example chain.

These are inspired by Ethereum’s upgrades but customized for demonstration. Add new variants here to extend the chain’s hardfork set.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

BasicUpgrade

Enables basic custom features (e.g., a new precompile).

AdvancedUpgrade

Enables advanced features (e.g., state modifications).

Implementations

impl CustomHardfork

pub const VARIANTS: &'static [Self]

All hardfork variants

pub const fn name(&self) -> &'static str

Returns variant as str.

Trait Implementations

impl Clone for CustomHardfork

fn clone(&self) -> CustomHardfork

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CustomHardfork

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CustomHardfork

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromStr for CustomHardfork

type Err = ParseHardforkError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hardfork for CustomHardfork

fn name(&self) -> &'static str

Fork name.

fn boxed(&self) -> Box<dyn Hardfork + '_>

Returns boxed value.

impl Hash for CustomHardfork

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CustomHardfork

fn cmp(&self, other: &CustomHardfork) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for CustomHardfork

fn eq(&self, other: &CustomHardfork) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for CustomHardfork

fn partial_cmp(&self, other: &CustomHardfork) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for CustomHardfork

impl Eq for CustomHardfork

impl StructuralPartialEq for CustomHardfork

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• BasicUpgrade: 0 bytes
• AdvancedUpgrade: 0 bytes