CurveAmmAdapter

contracts/interfaces/external/curve/ICurveMinter.sol

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+// SPDX-License-Identifier: Apache License, Version 2.0
+pragma solidity 0.6.10;
+
+interface ICurveMinter {
+  function coins(uint256) external view returns (address);
+
+  function balances(uint256) external view returns (uint256);
+
+  function add_liquidity(uint256[2] calldata amounts, uint256 min_mint_amount)
+    external;
+
+  function add_liquidity(uint256[3] calldata amounts, uint256 min_mint_amount)
+    external;
+
+  function add_liquidity(uint256[4] calldata amounts, uint256 min_mint_amount)
+    external;
+
+  function remove_liquidity(uint256 amount, uint256[2] calldata min_amounts)
+    external;
+
+  function remove_liquidity(uint256 amount, uint256[3] calldata min_amounts)
+    external;
+
+  function remove_liquidity(uint256 amount, uint256[4] calldata min_amounts)
+    external;
+
+  function calc_token_amount(uint256[2] calldata amounts, bool is_deposit)
+    external view returns(uint256);
+
+  function calc_token_amount(uint256[3] calldata amounts, bool is_deposit)
+    external view returns(uint256);
+
+  function calc_token_amount(uint256[4] calldata amounts, bool is_deposit)
+    external view returns(uint256);
+
+  function calc_token_amount(uint256[2] calldata amounts, bool is_deposit, bool previous)
+    external view returns(uint256);
+
+  function calc_token_amount(uint256[3] calldata amounts, bool is_deposit, bool previous)
+    external view returns(uint256);
+
+  function calc_token_amount(uint256[4] calldata amounts, bool is_deposit, bool previous)
+    external view returns(uint256);
+}

contracts/interfaces/external/curve/ICurveV1.sol

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+// SPDX-License-Identifier: Apache License, Version 2.0
+pragma solidity 0.6.10;
+
+import "./ICurveMinter.sol";
+
+interface ICurveV1 is ICurveMinter {
+  function remove_liquidity_one_coin(
+    uint256 burn_amount,
+    int128 i,
+    uint256 mim_received
+  ) external;
+
+  function calc_withdraw_one_coin(uint256, int128)
+    external
+    view
+    returns (uint256);
+
+  function exchange(
+    int128 i,
+    int128 j,
+    uint256 dx,
+    uint256 min_dy
+  ) external returns (uint256);
+}

contracts/interfaces/external/curve/ICurveV2.sol

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+// SPDX-License-Identifier: Apache License, Version 2.0
+pragma solidity 0.6.10;
+
+import "./ICurveMinter.sol";
+
+interface ICurveV2 is ICurveMinter {
+  function remove_liquidity_one_coin(
+    uint256 burn_amount,
+    uint256 i,
+    uint256 mim_received
+  ) external;
+
+  function calc_withdraw_one_coin(uint256, uint256)
+    external
+    view
+    returns (uint256);
+
+  function exchange(
+    uint256 i,
+    uint256 j,
+    uint256 dx,
+    uint256 min_dy
+  ) external returns (uint256);
+}