chain

const (
	// MaxEventPairs caps the number of (key,value) pairs per emitted event.
	// `attrs` arrives as a flat slice of alternating keys/values, so the
	// flat length cap is 2× this. The bound exists so chargeNativeGas can
	// safely walk attrs to compute per-byte gas without becoming a DoS
	// vector itself, and so downstream amino+JSON encoding is bounded.
	MaxEventPairs = 64

	// MaxEventAttrLen caps each attribute's byte length. The event type,
	// every key, AND every value that exceeds this makes emit panic — it
	// fails loudly instead of silently truncating. A silent cap would be a
	// hidden invariant: each realm would have to pre-check its own value
	// lengths to guarantee protocol correctness, and a truncated value
	// (e.g. a hex-encoded IBC ack or membership proof) would corrupt
	// downstream consumers with no on-chain signal.
	//
	// Sized to hold a realistic binary payload after hex/base64 expansion
	// (~2 KB of raw bytes once hex-encoded as 0x... doubles the length) —
	// e.g. an IBC packet acknowledgement, membership proof, or packet-data
	// chunk emitted by an on-chain bridge realm — while still bounding the
	// downstream amino+JSON encoding amplification per attr at ~4 KB.
	MaxEventAttrLen = 4096
)