Brummel
64b19ab3d5
Bind a blueprint's open knobs by name for a single run instead of by a positional,
Scalar-wrapped Vec in param_space() order:
bp.with("sma_cross.fast", 2).with("sma_cross.slow", 4).with("scale", 0.5).bootstrap()
A pure authoring layer over the existing Composite::param_space / bootstrap_with_params
primitives; the engine run loop and the construction core are untouched (C1/C12/C19/C23
preserved). Raw literals lower via Into<Scalar> (the literal fixes the variant: 2->I64,
0.5->F64, pinned by e97906a); the match key is the exact param_space() name — path-qualified
for a composite-interior knob (sma_cross.fast), bare for a root-level knob (scale).
This iteration (single-run side):
- BindError vocabulary (name-qualified); the full enum incl. the sweep-only EmptyAxis is
defined and re-exported now, so the unconstructed variant is reachable public API, not
dead_code — EmptyAxis is constructed in iteration 2 (the sweep side).
- resolve(): the shared name-resolution core, a total error order — Phase 1 per binding in
input order (a UnknownKnob / b AmbiguousKnob / d DuplicateBinding), Phase 2 slot walk in
param_space() order (e MissingKnob / f KindMismatch); first failing check wins.
- Composite::with -> Binder -> Binder::bootstrap; .with() not .bind() (bind is reserved for
#55's structural-constant overlay).
- The CLI sample single-run test converted to the named form (behaviour-preserving).
Verified (run by the orchestrator, not the agent's claim): 9 new aura-engine tests green —
resolve round-trip + one per single-run BindError variant + two precedence tests + the C1
named-equals-positional equivalence over the sample composite harness; the converted CLI
sample test green; full `cargo test --workspace` green and `cargo clippy --workspace
--all-targets -- -D warnings` clean.
Iteration 2 (the sweep side: axis / SweepBinder / resolve_axes / EmptyAxis + the sweep CLI
conversion) is next. refs #35