Tamale.
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The single kernel-mandated channel-adapter callback.
Transport moves anchor intervals; payloads must be transformed under the same warp, and that transformation is channel-specific:
- control-point curves are exact under uniform translate/scale; split-induced piecewise warps require cutting the payload at piece boundaries (Bezier splitting at cut points is adapter-specific logic)
- dense frames are resampled generically; the interpolator is policy, not kernel
Obtain the warp for a Tamale.Anchor.Metric transport from
Tamale.Transport.fold_warp/4, called with the same arguments as the
transport itself — it returns exactly the warp the transport folded.
This callback is the deliberate residue of zongzi's on_rebase/4 — an
order of magnitude smaller, but it does not go to zero.
Summary
Callbacks
Transforms payload under warp.
Callbacks
@callback warp_payload(payload :: term(), warp :: Tamale.Warp.t()) :: {:ok, term()} | {:conflict, term()}
Transforms payload under warp.
Returns {:ok, payload'} when the payload survives the coordinate
change, {:conflict, reason} when the channel considers the transform
lossy enough to void the edit (e.g. a hand-tuned value whose support
was clipped).