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StateKey

Struct StateKey 

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pub struct StateKey;
Expand description

Compound key derivation for the state tree.

All state lives in a single JMT with compound keys: keccak256(address || namespace || sub_key)

Keys are derived using the Keccak256 hasher directly (no allocation) to avoid Vec overhead on the hot path.

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impl StateKey

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pub fn account(address: &[u8; 20]) -> KeyHash

Account metadata: cash, nonce, margin_mode, liquidation_state

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pub fn option_position(address: &[u8; 20], symbol: &str) -> KeyHash

Option position for (address, symbol)

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pub fn perp_position(address: &[u8; 20], coin: &str) -> KeyHash

Perp position for (address, coin)

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pub fn order(address: &[u8; 20], order_id: u64) -> KeyHash

Open order for (address, order_id)

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pub fn mmp_config(address: &[u8; 20], currency: &str) -> KeyHash

MMP config for (address, currency)

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pub fn instrument(symbol: &str) -> KeyHash

Instrument metadata (global, not per-account)

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pub fn oracle(underlying: &str) -> KeyHash

Oracle anchor (global)

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pub fn global() -> KeyHash

Global counters (singleton)

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pub fn risk(address: &[u8; 20]) -> KeyHash

Risk tree key (separate JMT, keyed by address only)

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