Struct Binding 

pub struct Binding {
    pub version: u32,
    pub intent: Option<String>,
    pub sources: Vec<Source>,
    pub reference_mems: Vec<String>,
    pub destination_mem: String,
    pub deny_paths: Vec<String>,
    pub coverage_semantics: Option<CoverageSemantics>,
    pub rules: Option<Value>,
    pub prune: Option<PruneConfig>,
    pub operations: Operations,
}

A binding, format version 2 — one record per pipeline. The single versioned file at projections/<mem>/<name>.json that alone fully defines the obligation: intent, inline Source entries (each carrying the medium and facet halves the retired standalone records held), reference_mems, destination_mem, deny_paths, coverage_semantics, rules, prune, and the operations { build, sync, verify } block.

This is the live store record — crate::pipeline_store::load_pipeline_configs reads it version-gated and the projection CLI tree writes it.

Fields

version: u32

Format version — required. v2 is BINDING_VERSION. A projection file without it (or with a prior version) is refused by the loader with a typed error naming memstead projection migrate.

intent: Option<String>

What the binding is trying to accomplish — prose for the agent.

sources: Vec<Source>

The inline sources the binding consumes, in declaration order. Each name is unique within the record and keys per-source state.

reference_mems: Vec<String>

Read-only reference mems that supply cross-mem context.

destination_mem: String

The mem this binding writes into.

deny_paths: Vec<String>

Paths excluded from the binding’s scope (workspace-relative globs).

coverage_semantics: Option<CoverageSemantics>

Whether the binding claims exhaustive or curated coverage. Optional: None means not stated — a different fact from “stated as exhaustive”. Consumers never read this raw; they read effective_coverage_semantics, which resolves None per medium (all sources enumerable → exhaustive; any non-enumerable source → curated). An explicit exhaustive over a non-enumerable source is refused by validate_binding.

rules: Option<Value>

Free-form binding rules (e.g. a one-shot lens routing string). Opaque to the engine — consumed only by the one-shot brief renderer.

prune: Option<PruneConfig>

The prune policy (bundle plan 05-verify-sync-engine, F1) — additive, optional. Absent = prune disabled (no deletion proposals). Present = prune produces deletion proposals in the sync brief under the requested PruneGuarantee, validated against the medium’s base-leg retrievability at binding-validation time. Excluded from hash_binding (a maintenance policy, not content-defining).

operations: Operations

The operations this binding declares (build required; sync/verify optional).

Trait Implementations

impl Clone for Binding

fn clone(&self) -> Binding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Binding

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Binding

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Binding

impl PartialEq for Binding

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Binding

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Binding