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zeekayandHanzo Dev
4d712c3798
The fx set is a CLOSED sum type (secp256k1fx | nftfx | propertyfx), fixed at
compile time — no hot-loading, no genesis-configured fx. So the runtime
'which fx owns this value' dispatch needs no reflection: it is a total match on
the variant tag. Replaced reflect.TypeOf(val) + map[reflect.Type]int with:
- fxKindOf(val): a Go type switch over the closed set of fx primitive types
(compiler-checked exhaustive; lowers to a jump on the interface type tag),
returning the value's wire.TypeKind — the same family tag the wire envelope
already carries.
- FxIndex: a dense [16]int array indexed by that TypeKind (one bounds-checked
load; -1 = unregistered), filled by the SAME fx.(type) switch NewCustomParser
already ran — no separate reflect registration.
getFx (semantic verifier + tx_init) is now fxKindOf → array index: zero reflect,
zero map-hash, compile-time-checked. Deleted registerFxTypes + all
map[reflect.Type]int fields/params (parser, block/parser, vm, backend). Node-only
(uses already-imported utxo fx types + wire.TypeKind); no dep cascade.
Full xvm suite green (11 pkgs — secp/nft/property verify dispatch exercised).
This removes the LAST reflection from the X-chain tx/verify path.
Co-authored-by: Hanzo Dev <dev@hanzo.ai>