Struct lnpbp::features::FlagVec

pub struct FlagVec(_);

Structure holding a given set of features

Implementations

impl FlagVec

pub fn new() -> FlagVec

Constructs a features vector of zero feature flag set

pub fn with_capacity(upto: FlagNo) -> Self

Constructs a features vector of upto feature flag in unset state

pub fn shrunk(&self) -> Self

Returns a shrunk copy of the self

pub fn iter(&self) -> AllSet<'_>

Creates an iterator for the current feature flags which have "set" state

pub fn known_iter(&self, known: FlagVec) -> FilteredIter<'_>

Creates iterator over known set of the features

pub fn unknown_iter(&self, known: FlagVec) -> FilteredIter<'_>

Creates iterator over unknown set of the features, i.e. features that do not match flags set in known parameter

pub fn shrink(&mut self) -> bool

Reduces the size of the internal buffer to the smallest capacity required to keep all currently set feature flags. Returns true if resize operation was required, or false otherwise, when the internal buffer already was of the smallest possible size

pub fn is_set(&self, flag_no: FlagNo) -> bool

Returns whether a feature flag with flag_no is set (true or false)

pub fn set(&mut self, flag_no: FlagNo) -> bool

Sets the feature flag with number flag_no. Returns true if the flag was already set and false otherwise (i.e. previous value of the flag)

pub fn unset(&mut self, flag_no: FlagNo) -> bool

Unsets the feature flag with number flag_no. Returns true if the flag was set before and false otherwise (i.e. previous value of the flag)

pub fn invert(&mut self, flag_no: FlagNo)

Inverts the feature flag with number flag_no

Trait Implementations

impl Binary for FlagVec

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

Formats the value using the given formatter.

impl BitAnd<FlagVec> for FlagVec

type Output = Self

The resulting type after applying the & operator.

fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation.

impl BitOr<FlagVec> for FlagVec

type Output = Self

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl BitXor<FlagVec> for FlagVec

type Output = Self

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: Self) -> Self::Output

Performs the ^ operation.

impl Clone for FlagVec

fn clone(&self) -> FlagVec

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FlagVec

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

Formats the value using the given formatter.

impl Default for FlagVec

fn default() -> Self

Returns the "default value" for a type.

impl Display for FlagVec

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

Formats the value using the given formatter.

impl Eq for FlagVec

impl FromStr for FlagVec

type Err = ParseError

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 Hash for FlagVec

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, 

Feeds a slice of this type into the given Hasher.

impl LowerHex for FlagVec

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

Formats the value using the given formatter.

impl Octal for FlagVec

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

Formats the value using the given formatter.

impl PartialEq<FlagVec> for FlagVec

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StrictDecode for FlagVec

type Error = Error

Implementation-dependent error type

fn strict_decode<D: Read>(d: D) -> Result<Self, Self::Error>

Decode with the given [std::io::Reader] instance; must either construct an instance or return implementation-specific error type.

impl StrictEncode for FlagVec

type Error = Error

Implementation-dependent error type

fn strict_encode<E: Write>(&self, e: E) -> Result<usize, Self::Error>

Encode with the given [std::io::Writer] instance; must return result with either amount of bytes encoded – or implementation-specific error type.

impl<'_> TryFrom<&'_ [u8]> for FlagVec

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<u8>> for FlagVec

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl UpperHex for FlagVec

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

Formats the value using the given formatter.