Enum gf::support::bitvec::BitVecOpSignature

pub enum BitVecOpSignature {
    Un1,
    Unn,
    UnExt(usize),
    UnRepeat(usize),
    UnSlice(usize, usize),
    B111,
    Bnn1,
    Bnnn,
    BnmConcat,
    T1nnn,
}

Signature of a bit vector operator.

In the variants below, the number 1 and variables (such n and m) are bit lengths of operands and result. Some variants also have parameters that are not operands but part of the signature instead.

Variants

Un1

Unary: (n) → 1, n > 0.

Unn

Unary: (n) → n.

UnExt(usize)

Unary: (n) → n + k where k is the usize.

UnRepeat(usize)

Unary: (n) → n × k where k is the usize.

UnSlice(usize, usize)

Unary: (n) → e - s where [s; e) is the bit range selected by the two usize parameters.

B111

Binary: (1, 1) → 1.

Bnn1

Binary: (n, n) → 1, n > 0.

Bnnn

Binary: (n, n) → n.

BnmConcat

Binary: (n, m) → n + m.

T1nnn

Ternary: (1, n, n) → n.

Implementations

impl BitVecOpSignature

pub const MAX_OPERAND_COUNT: usize

Maximum number of operands for any signature.

pub fn operand_count(self) -> usize

Return number of expected operands.

pub fn result_bit_len(
    self,
    operand_bit_lens: &[usize]
) -> Result<usize, BitVecOpError>

Check if signature is valid for given operand bit lengths, and if it is, return the result bit length.

Trait Implementations

impl Clone for BitVecOpSignature

fn clone(&self) -> BitVecOpSignature

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for BitVecOpSignature

impl Debug for BitVecOpSignature

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

Formats the value using the given formatter.

impl Eq for BitVecOpSignature

impl Hash for BitVecOpSignature

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 PartialEq<BitVecOpSignature> for BitVecOpSignature

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

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

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

This method tests for !=.

impl StructuralEq for BitVecOpSignature

impl StructuralPartialEq for BitVecOpSignature