Struct FormulaArena 

pub struct FormulaArena { /* private fields */ }

An arena-based allocator for managing the Formula abstract syntax tree.

By storing Formula nodes in a flat vector and referencing them by usize indices, the system builds a Graph Reduction representation of the AST suitable for the CPU Geometry Layer. This approach ensures locality and prevents deeply recursive structures.

Implementations

impl FormulaArena

pub fn new() -> Self

Creates a new, empty FormulaArena.

pub fn add(&mut self, formula: Formula) -> usize

Adds a new Formula node to the arena and returns its index.

This index acts as a pointer to the formula and can be used in parent nodes.

pub fn get(&self, index: usize) -> Option<&Formula>

Retrieves a reference to a Formula by its index in the arena. Returns None if the index is out of bounds.

Trait Implementations

impl Clone for FormulaArena

fn clone(&self) -> FormulaArena

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FormulaArena

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

Formats the value using the given formatter.

impl Default for FormulaArena

fn default() -> FormulaArena

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FormulaArena

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FormulaArena

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.