Struct CaptureComparisonProjection 

pub struct CaptureComparisonProjection {
    pub identity: Symbol,
    pub unstable_fields: BTreeSet<String>,
}

A named, two-sided declaration of capture fields that are intentionally unstable.

Every ignored path must exist in both captures. The projection identity is itself part of each capture and must match this declaration, so changing a projection never silently preserves comparison equality.

Fields

identity: Symbol

Stable identity recorded in both captures.

unstable_fields: BTreeSet<String>

Exact field paths omitted from both sides before comparison.

Implementations

impl CaptureComparisonProjection

pub fn new(identity: Symbol) -> Self

Construct a named projection with no unstable fields.

pub fn ignoring(self, path: impl Into<String>) -> Self

Declare one exact, two-sided unstable field path.

Trait Implementations

impl Clone for CaptureComparisonProjection

fn clone(&self) -> CaptureComparisonProjection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CaptureComparisonProjection

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

Formats the value using the given formatter.

impl Eq for CaptureComparisonProjection

impl PartialEq for CaptureComparisonProjection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CaptureComparisonProjection