Crate equanetwork_math 

Structs

PriceBand

Inclusive Q64.64 interval.

SwapQuote

VaultSwapLimits

Enums

SkewExponent

Polynomial degree for inventory skew outside the dead zone.

Constants

AMOUNT_EXCEEDS_MAX_I32

AMOUNT_EXCEEDS_MAX_U64

ARITHMETIC_OVERFLOW

BPS_DENOMINATOR

Basis-point denominator retained for wasm API compatibility.

DIVISION_BY_ZERO

INSUFFICIENT_LIQUIDITY

INVALID_FEE

INVALID_MARGIN

INVALID_PRICE

INVALID_SKEW

MAX_PRICE_MARGIN_PER_1M

Max oracle margin vs peg (10%).

MAX_SWAP_EXCEEDED

MAX_SWAP_FEE_PER_1M

Max swap fee per vault (10%).

MAX_TOTAL_SKEW_PER_1M

Max combined skew applied to a quote (10%).

MAX_VAULT_SKEW_PER_1M

Max positive or negative skew contribution per vault (5%).

PER_1M_DENOMINATOR

Parts-per-million denominator (100% = 1_000_000).

Q64_ONE

Q64.64 one (= 2^64), used for prices and exchange rates.

Functions

apply_swap_fee_per_1m

Retain fee_per_1m ppm of amount in the vault (returns the swapped portion).

apply_total_skew_per_1m

Apply combined skew (ppm) to fair output.

assert_synthetic_oracle_within_execution

Combined synthetic oracle band must lie inside the combined execution-price band.

average_skew_per_m

Path-average skew (ppm) over [balance_pre, balance_post].

base_out_1_to_1

Decimal-aware 1:1 conversion (UI-unit parity).

bitmap_contains

bitmap_set

bitmap_unset

combine_feed_band

Combined feed band from two [mid ± conf] observations.

combine_price_band

Combined band from two price intervals: lo = in_lo / out_hi, hi = in_hi / out_lo.

combine_prices_q64

Combined pair rate price_in / price_out in Q64.64.

compute_skew_per_m

Instantaneous vault skew contribution (ppm) at balance for a move in increasing direction.

default_price_q64

Identity Q64.64 price (1.0) used when no price source or feed is configured.

deviation_per_m

Map inventory balance to signed deviation in ppm (−1e6..=+1e6). Dead zone → 0; outer limits → ±1e6.

div_q64

Convert amount / Q64.64 price → amount (floor or ceil).

fair_out_with_prices

Fair output from Q64.64 prices (no skew, no fee).

mul_q64

Convert amount · Q64.64 price → amount (floor or ceil).

one_q64

Identity price (1.0 in Q64.64).

price_band_with_margin

[price * (1 − margin), price * (1 + margin)] in Q64.64.

quote_network_swap

Quote a network swap (prices + fees + skew). No oracle input.

ratio_to_q64

Q64.64 ratio numerator / denominator.

vault_skew_contribution_per_1m

Inventory skew contribution for one vault (signed ppm): path-average over the fill.

Type Aliases

CoreError

U128