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https://github.com/logos-blockchain/lez-programs.git
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3285d5787e
Add CurrentTickAccount — an oracle-owned PDA (one per price source) that holds the latest raw tick written by the price source and a timestamp. The price source calls UpdateCurrentTick after each price-changing operation; anyone can then call RecordTick (upcoming) to advance the PriceObservations accumulator without requiring the price source to be present. PDA is derived from price_source_id only (no window) since a single current tick serves all time windows. Add price_to_tick(price: u128) -> i32 to twap_oracle_core: isqrt(price << 128) -> sqrtPriceX96 -> get_tick_at_sqrt_ratio. The sqrtPriceX96 is clamped to >= MIN_SQRT_RATIO so a zero/dust price maps to MIN_TICK rather than erroring. Add a pure-integer integer_sqrt(U256) (bit-by-bit, no floating point): ruint's root is gated behind its std feature and seeds with f64, neither available in the guest. Uses wrapping_shr for the digit loop (checked_shr rejects the intended lossy shifts). Pull in uniswap_v3_math (for get_tick_at_sqrt_ratio) and alloy-primitives (U256), with ruint pinned to =1.17.0 — 1.18 raised its MSRV to rustc 1.90, above the risc0 guest toolchain's 1.88.
21 lines
963 B
TOML
21 lines
963 B
TOML
[package]
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name = "twap_oracle_core"
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version = "0.1.0"
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edition = "2021"
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[lints]
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workspace = true
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[dependencies]
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nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0-rc3", features = ["host"] }
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borsh = { version = "1.5", features = ["derive"] }
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serde = { version = "1.0", features = ["derive"] }
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spel-framework-macros = { git = "https://github.com/logos-co/spel.git", tag = "v0.3.0", package = "spel-framework-macros" }
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risc0-zkvm = { version = "=3.0.5", default-features = false }
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uniswap_v3_math = "0.6.2"
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alloy-primitives = { version = "1", default-features = false }
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# Pin ruint (transitive via alloy-primitives) below 1.18, which raised its MSRV to rustc 1.90.
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# The risc0 guest toolchain ships rustc 1.88, so 1.18+ fails the guest build. 1.17.0 (MSRV 1.85)
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# is the newest compatible release. Remove this pin once the risc0 toolchain advances past 1.90.
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ruint = { version = "=1.17.0", default-features = false }
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