Struct LensMeta 

pub struct LensMeta {
    pub id: Symbol,
    pub kind: LensKind,
    pub claimed_shapes: Vec<ShapeRef>,
    pub claimed_classes: Vec<Symbol>,
    pub quality: i32,
    pub cost: i32,
    pub required_capabilities: Vec<CapabilityName>,
    pub preferred_modes: Vec<Symbol>,
    pub universal_default: bool,
}

Open metadata describing a registered lens. Modelled on ExportRecord: a data record the dispatcher reads, never a closed kernel enum plus a parallel registry map.

Fields

id: Symbol

Stable lens id (for example view:agent-topology).

kind: LensKind

The role this lens plays.

claimed_shapes: Vec<ShapeRef>

Shapes this lens claims; a lens matches a value when one accepts it.

claimed_classes: Vec<Symbol>

Class symbols this lens claims as a fallback when no Shape matches.

quality: i32

Declared quality; higher wins ties among equally specific matches.

cost: i32

Declared cost; lower wins ties after quality.

required_capabilities: Vec<CapabilityName>

Capabilities the operator must hold for this lens to be eligible.

preferred_modes: Vec<Symbol>

Experience modes this lens prefers (used by mode-aware ranking in P9).

universal_default: bool

Whether this is the always-matching universal default of its kind.

Implementations

impl LensMeta

pub fn new(id: Symbol, kind: LensKind) -> Self

Build a minimal lens metadata record with no claims and zero quality and cost. Use the builder methods to fill it in.

pub fn claiming_shape(self, shape: ShapeRef) -> Self

Claim a Shape (a shape Value).

pub fn claiming_class(self, class: Symbol) -> Self

Claim a class symbol as a fallback match.

pub fn with_quality_cost(self, quality: i32, cost: i32) -> Self

Set quality and cost.

pub fn requiring(self, capability: CapabilityName) -> Self

Require a capability.

pub fn preferring_mode(self, mode: Symbol) -> Self

Prefer an experience mode.

pub fn as_universal_default(self) -> Self

Mark this lens as the universal default of its kind.

Trait Implementations

impl Clone for LensMeta

fn clone(&self) -> LensMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.