Struct NormalizedExpression 

pub struct NormalizedExpression { /* private fields */ }

A normalized expression with precomputed stable hash.

NormalizedExpression wraps an Expression that has been transformed into canonical form, along with a stable hash value that remains consistent across runs and platforms.

Implementations

impl NormalizedExpression

pub fn new(expr: &Expression) -> Self

Create a normalized form of the given expression.

pub fn inner(&self) -> &Expression

Access the normalized expression.

pub fn into_inner(self) -> Expression

Consume and return the inner normalized expression.

pub fn stable_hash(&self) -> u64

Get the stable hash value for this normalized expression.

This hash is deterministic across runs and platforms, making it suitable for cache keys.

Trait Implementations

impl Clone for NormalizedExpression

fn clone(&self) -> NormalizedExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NormalizedExpression

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

Formats the value using the given formatter.

impl Display for NormalizedExpression

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

Formats the value using the given formatter.

impl Hash for NormalizedExpression

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 PartialEq for NormalizedExpression

fn eq(&self, other: &Self) -> 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 Eq for NormalizedExpression