Module factory 

Model factory: builds the right model from config + weights.

Weight loader selection is registry-driven — add new models by implementing ModelWeightLoader and registering in loader_for_config. No other code changes needed.

Structs

DflashBuildArgs

DFlash speculative-decoding build arguments. None for non-DFlash runs; Some(...) carries the drafter’s separate WeightStore, parsed config.json, and CLI overrides for γ and the sliding-window size.

LoraBuildArgs

LoRA adapter build arguments (--lora-adapter NAME=PATH). None for base-only runs; Some(...) carries the adapter’s separate on-device WeightStore (loaded via spark_runtime::weights::adapter::load_adapter_safetensors), the parsed adapter_config.json, and the pool-shape CLI knobs.

Functions

build_model

loader_for_config

Select the weight loader for a given model config.