Struct Symbol 

pub struct Symbol(/* private fields */);

A program symbol: an i32 opcode id.

Within a FunctionSet, ids 0..num_functions() name function opcodes. GEP alphabets assign higher ids to variable and constant terminals; see Alphabet. The newtype keeps symbol ids from being confused with the many other i32 indices in the genome (node indices, input indices, gene positions).

The inner id is private so a Symbol cannot be silently confused with a bare i32. Read it with value (or i32::from(symbol)); construct one from a raw genome id with the crate-internal from_raw. Ids are not range-checked at construction — out-of-range ids classify as inert (arity 0, apply → 0.0), matching the evaluator’s tolerance for mutated-but-unrepaired genotypes.

Implementations

impl Symbol

pub const fn value(self) -> i32

The raw opcode id.

Exposed for tensor serialization and table indexing; it is not a constructor, so it cannot be used to fabricate an unchecked symbol from outside the crate.

Trait Implementations

impl Clone for Symbol

fn clone(&self) -> Symbol

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Symbol

impl Debug for Symbol

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

Formats the value using the given formatter.

impl Display for Symbol

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

Formats the value using the given formatter.

impl Eq for Symbol

impl From<Symbol> for i32

fn from(symbol: Symbol) -> Self

Converts to this type from the input type.

impl Hash for Symbol

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 Symbol

fn cmp(&self, other: &Symbol) -> 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 Symbol

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Symbol

fn partial_cmp(&self, other: &Symbol) -> 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 StructuralPartialEq for Symbol