hood// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
// ─── THE LIVE SEAM ─────────────────────────────────────────────────────────
// The real hand behind ISwapAdapter: exact-input native ETH into $TAPE across
// a Uniswap v4 pool, with a slippage floor and a hard refusal of partial
// fills (no wei may ever strand on this ownerless contract). Stateless beyond
// its immutable wiring; nothing here can rug.
// ───────────────────────────────────────────────────────────────────────────
import {ISwapAdapter} from "./ISwapAdapter.sol";
import {IPoolManager} from "v4-core/interfaces/IPoolManager.sol";
import {IUnlockCallback} from "v4-core/interfaces/callback/IUnlockCallback.sol";
import {PoolKey} from "v4-core/types/PoolKey.sol";
import {PoolId, PoolIdLibrary} from "v4-core/types/PoolId.sol";
import {Currency} from "v4-core/types/Currency.sol";
import {IHooks} from "v4-core/interfaces/IHooks.sol";
import {SwapParams} from "v4-core/types/PoolOperation.sol";
import {BalanceDelta, BalanceDeltaLibrary} from "v4-core/types/BalanceDelta.sol";
import {TickMath} from "v4-core/libraries/TickMath.sol";
import {FullMath} from "v4-core/libraries/FullMath.sol";
import {FixedPoint96} from "v4-core/libraries/FixedPoint96.sol";
interface IERC20A {
function transfer(address to, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
/// @title UniV4SwapAdapter — the live seam behind ISwapAdapter for the deck.
/// @notice Swaps exactly `msg.value` native ETH into $TAPE through a Uniswap v4
/// ETH/$TAPE pool (native currency0 = ETH, currency1 = $TAPE) and
/// forwards the $TAPE to the caller. ONLY the deck's tiny per-mint
/// auto-buy runs through here. The adapter is stateless beyond the
/// immutable pool wiring: no owner, no admin, nothing to rug. The
/// `minTapeOut` floor is enforced on the real settled output, and the
/// deck additionally re-checks the floor against the actual balance
/// delta it receives (defense in depth).
contract UniV4SwapAdapter is ISwapAdapter, IUnlockCallback {
using PoolIdLibrary for PoolKey;
using BalanceDeltaLibrary for BalanceDelta;
// v4 PoolManager storage layout: `pools` mapping lives at slot 6, and each
// pool's State struct begins with the packed Slot0 (sqrtPriceX96 in the low
// 160 bits). We read it via the MIT IExtsload seam rather than importing
// the BUSL-licensed StateLibrary — our own code, documented layout.
uint256 private constant POOLS_SLOT = 6;
IPoolManager public immutable MANAGER;
address public immutable TAPE;
PoolKey internal _key; // ETH(native)/TAPE pool key, fixed at deploy
bool internal immutable _tapeIsZero; // false: ETH is currency0 (always, since address(0) sorts first)
error NotManager();
error ZeroIn();
error Slippage();
error EthSendFailed();
/// @param manager the live v4 PoolManager on this chain.
/// @param tape_ the $TAPE token (currency1; native ETH is currency0).
/// @param fee pool fee tier in hundredths of a bip (e.g. 10000 = 1%).
/// @param tickSpacing pool tick spacing matching the fee tier.
/// @param hooks hook contract (address(0) for the hookless launch pool).
constructor(IPoolManager manager, address tape_, uint24 fee, int24 tickSpacing, address hooks) {
MANAGER = manager;
TAPE = tape_;
// address(0) (native ETH) always sorts below any token, so ETH is
// currency0 and $TAPE is currency1. Asserted for clarity.
require(tape_ != address(0), "tape zero");
_tapeIsZero = false;
_key = PoolKey({
currency0: Currency.wrap(address(0)),
currency1: Currency.wrap(tape_),
fee: fee,
tickSpacing: tickSpacing,
hooks: IHooks(hooks)
});
}
function tape() external view returns (address) {
return TAPE;
}
function poolKey() external view returns (PoolKey memory) {
return _key;
}
/// Advisory spot quote from slot0. NOT a slippage oracle within the same tx
/// it guards (see ISwapAdapter): it reflects the current — possibly already
/// manipulated — spot price. $TAPE (currency1) out per `ethIn` of currency0.
function quoteTapeOut(uint256 ethIn) external view returns (uint256) {
bytes32 stateSlot = keccak256(abi.encodePacked(PoolId.unwrap(_key.toId()), bytes32(POOLS_SLOT)));
uint160 sqrtPriceX96 = uint160(uint256(MANAGER.extsload(stateSlot))); // low 160 bits of Slot0
if (sqrtPriceX96 == 0) return 0; // uninitialized pool
// price1/0 = (sqrtP^2) / 2^192; compute in two Q96 steps to avoid overflow
uint256 half = FullMath.mulDiv(ethIn, sqrtPriceX96, FixedPoint96.Q96);
return FullMath.mulDiv(half, sqrtPriceX96, FixedPoint96.Q96);
}
/// Advisory spot quote for the sell side: ETH out per `tapeIn` of $TAPE.
/// Same caveats as quoteTapeOut - never a same-tx slippage oracle.
function quoteEthOut(uint256 tapeIn) external view returns (uint256) {
bytes32 stateSlot = keccak256(abi.encodePacked(PoolId.unwrap(_key.toId()), bytes32(POOLS_SLOT)));
uint160 sqrtPriceX96 = uint160(uint256(MANAGER.extsload(stateSlot)));
if (sqrtPriceX96 == 0) return 0;
// price0/1 = 2^192 / sqrtP^2; two Q96 steps, division last
uint256 half = FullMath.mulDiv(tapeIn, FixedPoint96.Q96, sqrtPriceX96);
return FullMath.mulDiv(half, FixedPoint96.Q96, sqrtPriceX96);
}
/// Swap exactly msg.value ETH -> $TAPE, send to `to`, revert under the floor.
function buyTape(uint256 minTapeOut, address to) external payable returns (uint256 tapeOut) {
if (msg.value == 0) revert ZeroIn();
bytes memory res = MANAGER.unlock(abi.encode(uint8(0), msg.value, minTapeOut, to));
tapeOut = abi.decode(res, (uint256));
}
/// Swap exactly `tapeIn` $TAPE -> native ETH, send to `to`, revert under
/// the floor. Caller approves this adapter for `tapeIn` first; the tokens
/// are pulled with transferFrom and every wei of output leaves in the same
/// transaction - the adapter holds nothing between calls.
function sellTape(uint256 tapeIn, uint256 minEthOut, address to) external returns (uint256 ethOut) {
if (tapeIn == 0) revert ZeroIn();
if (!IERC20A(TAPE).transferFrom(msg.sender, address(this), tapeIn)) revert Slippage();
bytes memory res = MANAGER.unlock(abi.encode(uint8(1), tapeIn, minEthOut, to));
ethOut = abi.decode(res, (uint256));
}
/// v4 flash-accounting callback: perform the swap, settle what we owe,
/// take what we are owed, straight to the recipient. Manager-only.
function unlockCallback(bytes calldata data) external returns (bytes memory) {
if (msg.sender != address(MANAGER)) revert NotManager();
(uint8 op, uint256 amtIn, uint256 minOut, address to) =
abi.decode(data, (uint8, uint256, uint256, address));
BalanceDelta delta = MANAGER.swap(
_key,
SwapParams({
zeroForOne: op == 0, // 0: ETH -> $TAPE, 1: $TAPE -> ETH
amountSpecified: -int256(amtIn), // negative = EXACT INPUT
sqrtPriceLimitX96: op == 0 ? TickMath.MIN_SQRT_PRICE + 1 : TickMath.MAX_SQRT_PRICE - 1
}),
""
);
int128 a0 = delta.amount0();
int128 a1 = delta.amount1();
uint256 owed = op == 0 ? uint256(uint128(-a0)) : uint256(uint128(-a1));
uint256 out = op == 0 ? uint256(uint128(a1)) : uint256(uint128(a0));
// A partial fill (exact-input ran out of pool liquidity before the
// price limit) would strand input on this ownerless adapter forever.
// Refuse it outright; callers see a clean revert and keep their funds.
if (owed != amtIn) revert Slippage();
if (out < minOut) revert Slippage();
if (op == 0) {
// pay native ETH into the pool, take $TAPE out to the recipient
MANAGER.settle{value: owed}();
MANAGER.take(Currency.wrap(TAPE), to, out);
} else {
// pay $TAPE into the pool, take native ETH out to the recipient
MANAGER.sync(Currency.wrap(TAPE));
if (!IERC20A(TAPE).transfer(address(MANAGER), owed)) revert Slippage();
MANAGER.settle();
MANAGER.take(Currency.wrap(address(0)), to, out);
}
return abi.encode(out);
}
/// Only ever holds ETH transiently inside a swap; accept refunds from the
/// manager (e.g. a settle over-pay is returned as native value).
receive() external payable {}
}[
{
"type": "constructor",
"inputs": [
{
"name": "manager",
"type": "address",
"internalType": "contract IPoolManager"
},
{
"name": "tape_",
"type": "address",
"internalType": "address"
},
{
"name": "fee",
"type": "uint24",
"internalType": "uint24"
},
{
"name": "tickSpacing",
"type": "int24",
"internalType": "int24"
},
{
"name": "hooks",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "nonpayable"
},
{
"name": "EthSendFailed",
"type": "error",
"inputs": []
},
{
"name": "NotManager",
"type": "error",
"inputs": []
},
{
"name": "Slippage",
"type": "error",
"inputs": []
},
{
"name": "ZeroIn",
"type": "error",
"inputs": []
},
{
"name": "MANAGER",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract IPoolManager"
}
],
"stateMutability": "view"
},
{
"name": "TAPE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "buyTape",
"type": "function",
"inputs": [
{
"name": "minTapeOut",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "to",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "tapeOut",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "payable"
},
{
"name": "poolKey",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "tuple",
"components": [
{
"name": "currency0",
"type": "address",
"internalType": "Currency"
},
{
"name": "currency1",
"type": "address",
"internalType": "Currency"
},
{
"name": "fee",
"type": "uint24",
"internalType": "uint24"
},
{
"name": "tickSpacing",
"type": "int24",
"internalType": "int24"
},
{
"name": "hooks",
"type": "address",
"internalType": "contract IHooks"
}
],
"internalType": "struct PoolKey"
}
],
"stateMutability": "view"
},
{
"name": "quoteEthOut",
"type": "function",
"inputs": [
{
"name": "tapeIn",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "quoteTapeOut",
"type": "function",
"inputs": [
{
"name": "ethIn",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "sellTape",
"type": "function",
"inputs": [
{
"name": "tapeIn",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "minEthOut",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "to",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "ethOut",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "nonpayable"
},
{
"name": "tape",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "unlockCallback",
"type": "function",
"inputs": [
{
"name": "data",
"type": "bytes",
"internalType": "bytes"
}
],
"outputs": [
{
"name": "",
"type": "bytes",
"internalType": "bytes"
}
],
"stateMutability": "nonpayable"
},
{
"type": "receive",
"stateMutability": "payable"
}
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| Token | Symbol | Balance | Price | Value |
|---|---|---|---|---|
| no token holdings | ||||
| Type | Age | Block | Details |
|---|---|---|---|
| no cross-chain L1↔L2 transactions for this address | |||
| Transaction Hash | Method | Block | Age | From | To | Type | Item | ||
|---|---|---|---|---|---|---|---|---|---|
| no NFT transfers for this address yet | |||||||||
| Txn Hash | Age | Event | Topics / Data |
|---|---|---|---|
| no event logs emitted by this address | |||
| Transaction Hash | Method | Block | Age | From | To | Amount | Token | ||
|---|---|---|---|---|---|---|---|---|---|
| 0x29c50d26…eac3de | Transfer | 38,771,259 | 19 hrs agoMon, 17 Aug 2026 10:39:07 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 802.774920 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0x29c50d26…eac3de | Transfer | 38,771,259 | 19 hrs agoMon, 17 Aug 2026 10:39:07 UTC | 0xd238…346f | IN | 0x147d…4ace | 802.774920 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0x69850623…505a3c | Transfer | 38,758,112 | 19 hrs agoMon, 17 Aug 2026 10:17:08 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 218.931734 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0x69850623…505a3c | Transfer | 38,758,112 | 19 hrs agoMon, 17 Aug 2026 10:17:08 UTC | 0xb9b0…f25e | IN | 0x147d…4ace | 218.931734 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xd80a42ba…01bccd | Transfer | 38,756,880 | 19 hrs agoMon, 17 Aug 2026 10:15:04 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 1,289.282886 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xd80a42ba…01bccd | Transfer | 38,756,880 | 19 hrs agoMon, 17 Aug 2026 10:15:04 UTC | 0xb9b0…f25e | IN | 0x147d…4ace | 1,289.282886 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0x2ab26e0a…cb6468 | Transfer | 38,754,178 | 19 hrs agoMon, 17 Aug 2026 10:10:33 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 218.940677 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0x2ab26e0a…cb6468 | Transfer | 38,754,178 | 19 hrs agoMon, 17 Aug 2026 10:10:33 UTC | 0xf649…fc27 | IN | 0x147d…4ace | 218.940677 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xba0b763e…855861 | Transfer | 38,750,763 | 19 hrs agoMon, 17 Aug 2026 10:04:49 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 656.834669 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xba0b763e…855861 | Transfer | 38,750,763 | 19 hrs agoMon, 17 Aug 2026 10:04:49 UTC | 0xcbb5…bbcd | IN | 0x147d…4ace | 656.834669 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xab6cad9c…d741ea | Transfer | 38,749,902 | 19 hrs agoMon, 17 Aug 2026 10:03:23 UTC | 0x147d…4ace | OUT | 0x8366…0951 | 218.940907 TAPE | MARKET ARCANA TAPE (TAPE) | |
| 0xab6cad9c…d741ea | Transfer | 38,749,902 | 19 hrs agoMon, 17 Aug 2026 10:03:23 UTC | 0x0649…3c5b | IN | 0x147d…4ace | 218.940907 TAPE | MARKET ARCANA TAPE (TAPE) |
| Transaction Hash | Method ? | Block | Age | From | To | Amount | Txn Fee ? | ||
|---|---|---|---|---|---|---|---|---|---|
| 0x99742a…b2476c | buyTape | 38,781,018 | 18 hrs agoMon, 17 Aug 2026 10:55:27 UTC | 0x3d75…04bb | IN | UniV4SwapAdapter | $2.840.0015 ETH | 0.00000226 | |
| 0x29c50d…eac3de | sellTape | 38,771,259 | 19 hrs agoMon, 17 Aug 2026 10:39:07 UTC | 0xd238…346f | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000210 | |
| 0xf5b2c4…67cd6e | buyTape | 38,766,740 | 19 hrs agoMon, 17 Aug 2026 10:31:33 UTC | 0xc88a…4a73 | IN | UniV4SwapAdapter | $94.630.05 ETH | 0.00000228 | |
| 0xaeffd5…dfb206 | buyTape | 38,765,866 | 19 hrs agoMon, 17 Aug 2026 10:30:06 UTC | 0x844f…18c2 | IN | UniV4SwapAdapter | $0.190.0001 ETH | 0.00000227 | |
| 0x698506…505a3c | sellTape | 38,758,112 | 19 hrs agoMon, 17 Aug 2026 10:17:08 UTC | 0xb9b0…f25e | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000216 | |
| 0xd80a42…01bccd | sellTape | 38,756,880 | 19 hrs agoMon, 17 Aug 2026 10:15:04 UTC | 0xb9b0…f25e | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000215 | |
| 0x807f71…12338e | buyTape | 38,755,624 | 19 hrs agoMon, 17 Aug 2026 10:12:57 UTC | 0xb9b0…f25e | IN | UniV4SwapAdapter | $2.080.0011 ETH | 0.00000228 | |
| 0x2ab26e…cb6468 | sellTape | 38,754,178 | 19 hrs agoMon, 17 Aug 2026 10:10:33 UTC | 0xf649…fc27 | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000209 | |
| 0xba0b76…855861 | sellTape | 38,750,763 | 19 hrs agoMon, 17 Aug 2026 10:04:49 UTC | 0xcbb5…bbcd | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000215 | |
| 0xab6cad…d741ea | sellTape | 38,749,902 | 19 hrs agoMon, 17 Aug 2026 10:03:23 UTC | 0x0649…3c5b | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000210 | |
| 0x02d9cf…a1a764 | buyTape | 38,748,509 | 19 hrs agoMon, 17 Aug 2026 10:01:03 UTC | 0xaca1…30fd | IN | UniV4SwapAdapter | $0.190.0001 ETH | 0.00000192 | |
| 0xcbed7b…9ad620 | buyTape | 38,748,074 | 19 hrs agoMon, 17 Aug 2026 10:00:19 UTC | 0xd238…346f | IN | UniV4SwapAdapter | $1.140.0006 ETH | 0.00000227 | |
| !0xb383fb…628155 | sellTape | 36,213,034 | 3 days agoFri, 14 Aug 2026 11:22:08 UTC | 0x9c28…a85b | IN | UniV4SwapAdapter | $0.000 ETH | 0.00000583 |
| Block | Age | Parent Transaction Hash | Type | Method | From | To | Value | |
|---|---|---|---|---|---|---|---|---|
| 37,859,048 | 1 day agoSun, 16 Aug 2026 09:13:08 UTC | 0x7e31d8…7553ae | CALL | fulfill | 0x147d…4ace | OUT | 0x8366…0951 | 0.0003 ETH |
| 37,859,048 | 1 day agoSun, 16 Aug 2026 09:13:08 UTC | 0x7e31d8…7553ae | CALL | fulfill | 0x7748…642b | IN | 0x147d…4ace | 0.0003 ETH |
| 37,854,510 | 1 day agoSun, 16 Aug 2026 09:05:32 UTC | 0xf3c001…bdcc1d | CALL | Mint | 0x147d…4ace | OUT | 0x8366…0951 | 0.0003 ETH |
| 37,854,510 | 1 day agoSun, 16 Aug 2026 09:05:32 UTC | 0xf3c001…bdcc1d | CALL | Mint | 0x7748…642b | IN | 0x147d…4ace | 0.0003 ETH |
| 36,580,569 | 3 days agoFri, 14 Aug 2026 21:35:50 UTC | 0x43491d…259472 | CALL | Mint | 0x147d…4ace | OUT | 0x8366…0951 | 0.0003 ETH |
| 36,580,569 | 3 days agoFri, 14 Aug 2026 21:35:50 UTC | 0x43491d…259472 | CALL | Mint | 0x7748…642b | IN | 0x147d…4ace | 0.0003 ETH |
| 36,184,300 | 3 days agoFri, 14 Aug 2026 10:34:06 UTC | 0xb155d6…940272 | CALL | fulfill | 0x147d…4ace | OUT | 0x8366…0951 | 0.0003 ETH |
| 36,184,300 | 3 days agoFri, 14 Aug 2026 10:34:06 UTC | 0xb155d6…940272 | CALL | fulfill | 0x7748…642b | IN | 0x147d…4ace | 0.0003 ETH |