abi.encode encodes data into bytes.
abi.encode encodes data into bytes.
abi.decode decodes bytes back into data.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -745,7 +745,7 @@ Closing a channel when Alice and Bob do not agree on the final balances
emit Refund(_id, msg.sender, bal);
}
}
-Deploy any contract by calling Proxy.deploy(bytes memory _code)
Deploy any contract by calling Proxy.deploy(bytes memory _code)
For this example, you can get the contract bytecodes by calling Helper.getBytecode1 and Helper.getBytecode2
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -819,7 +819,7 @@ Closing a channel when Alice and Bob do not agree on the final balances
return abi.encodeWithSignature("setOwner(address)", _owner);
}
}
-Dutch auction for NFT.
+`,Zj=({prev:s,next:a})=>i.jsx(u,{version:yj,title:mj,description:bj,html:kj,prev:s,next:a,codes:wj}),Wj="0.8.24",Gj="Dutch Auction",Bj="An example of Dutch auction in Solidity",Vj=[{fileName:"DutchAuction.sol",code:"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"}],fj=`Dutch auction for NFT.
English auction for NFT.
+`,Yj=({prev:s,next:a})=>i.jsx(u,{version:Wj,title:Gj,description:Bj,html:fj,prev:s,next:a,codes:Vj}),Rj="0.8.24",Xj="English Auction",vj="An example of English auction in Solidity",Nj=[{fileName:"EnglishAuction.sol",code:"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"}],Hj=`English auction for NFT.
Example of ERC1155
+`,Fj=({prev:s,next:a})=>i.jsx(u,{version:Rj,title:Xj,description:vj,html:Hj,prev:s,next:a,codes:Nj}),Kj="0.8.24",Sj="ERC1155",Mj="Example of ERC1155 multi token in Solidity",xj=[{fileName:"ERC1155.sol",code:"// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IERC1155 {
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external;
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external;
    function balanceOf(address owner, uint256 id)
        external
        view
        returns (uint256);
    function balanceOfBatch(address[] calldata owners, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);
    function setApprovalForAll(address operator, bool approved) external;
    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);
}

interface IERC1155TokenReceiver {
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

contract ERC1155 is IERC1155 {
    event TransferSingle(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256 id,
        uint256 value
    );
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );
    event ApprovalForAll(
        address indexed owner, address indexed operator, bool approved
    );
    event URI(string value, uint256 indexed id);

    // owner => id => balance
    mapping(address => mapping(uint256 => uint256)) public balanceOf;
    // owner => operator => approved
    mapping(address => mapping(address => bool)) public isApprovedForAll;

    function balanceOfBatch(address[] calldata owners, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory balances)
    {
        require(owners.length == ids.length, "owners length != ids length");

        balances = new uint256[](owners.length);

        unchecked {
            for (uint256 i = 0; i < owners.length; i++) {
                balances[i] = balanceOf[owners[i]][ids[i]];
            }
        }
    }

    function setApprovalForAll(address operator, bool approved) external {
        isApprovedForAll[msg.sender][operator] = approved;
        emit ApprovalForAll(msg.sender, operator, approved);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external {
        require(
            msg.sender == from || isApprovedForAll[from][msg.sender],
            "not approved"
        );
        require(to != address(0), "to = 0 address");

        balanceOf[from][id] -= value;
        balanceOf[to][id] += value;

        emit TransferSingle(msg.sender, from, to, id, value);

        if (to.code.length > 0) {
            require(
                IERC1155TokenReceiver(to).onERC1155Received(
                    msg.sender, from, id, value, data
                ) == IERC1155TokenReceiver.onERC1155Received.selector,
                "unsafe transfer"
            );
        }
    }

    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external {
        require(
            msg.sender == from || isApprovedForAll[from][msg.sender],
            "not approved"
        );
        require(to != address(0), "to = 0 address");
        require(ids.length == values.length, "ids length != values length");

        for (uint256 i = 0; i < ids.length; i++) {
            balanceOf[from][ids[i]] -= values[i];
            balanceOf[to][ids[i]] += values[i];
        }

        emit TransferBatch(msg.sender, from, to, ids, values);

        if (to.code.length > 0) {
            require(
                IERC1155TokenReceiver(to).onERC1155BatchReceived(
                    msg.sender, from, ids, values, data
                ) == IERC1155TokenReceiver.onERC1155BatchReceived.selector,
                "unsafe transfer"
            );
        }
    }

    // ERC165
    function supportsInterface(bytes4 interfaceId)
        external
        view
        returns (bool)
    {
        return interfaceId == 0x01ffc9a7 // ERC165 Interface ID for ERC165
            || interfaceId == 0xd9b67a26 // ERC165 Interface ID for ERC1155
            || interfaceId == 0x0e89341c; // ERC165 Interface ID for ERC1155MetadataURI
    }

    // ERC1155 Metadata URI
    function uri(uint256 id) public view virtual returns (string memory) {}

    // Internal functions
    function _mint(address to, uint256 id, uint256 value, bytes memory data)
        internal
    {
        require(to != address(0), "to = 0 address");

        balanceOf[to][id] += value;

        emit TransferSingle(msg.sender, address(0), to, id, value);

        if (to.code.length > 0) {
            require(
                IERC1155TokenReceiver(to).onERC1155Received(
                    msg.sender, address(0), id, value, data
                ) == IERC1155TokenReceiver.onERC1155Received.selector,
                "unsafe transfer"
            );
        }
    }

    function _batchMint(
        address to,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) internal {
        require(to != address(0), "to = 0 address");
        require(ids.length == values.length, "ids length != values length");

        for (uint256 i = 0; i < ids.length; i++) {
            balanceOf[to][ids[i]] += values[i];
        }

        emit TransferBatch(msg.sender, address(0), to, ids, values);

        if (to.code.length > 0) {
            require(
                IERC1155TokenReceiver(to).onERC1155BatchReceived(
                    msg.sender, address(0), ids, values, data
                ) == IERC1155TokenReceiver.onERC1155BatchReceived.selector,
                "unsafe transfer"
            );
        }
    }

    function _burn(address from, uint256 id, uint256 value) internal {
        require(from != address(0), "from = 0 address");
        balanceOf[from][id] -= value;
        emit TransferSingle(msg.sender, from, address(0), id, value);
    }

    function _batchBurn(
        address from,
        uint256[] calldata ids,
        uint256[] calldata values
    ) internal {
        require(from != address(0), "from = 0 address");
        require(ids.length == values.length, "ids length != values length");

        for (uint256 i = 0; i < ids.length; i++) {
            balanceOf[from][ids[i]] -= values[i];
        }

        emit TransferBatch(msg.sender, from, address(0), ids, values);
    }
}

contract MyMultiToken is ERC1155 {
    function mint(uint256 id, uint256 value, bytes memory data) external {
        _mint(msg.sender, id, value, data);
    }

    function batchMint(
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external {
        _batchMint(msg.sender, ids, values, data);
    }

    function burn(uint256 id, uint256 value) external {
        _burn(msg.sender, id, value);
    }

    function batchBurn(uint256[] calldata ids, uint256[] calldata values)
        external
    {
        _batchBurn(msg.sender, ids, values);
    }
}
"}],Jj=`Example of ERC1155
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -1971,7 +1971,7 @@ How to swap tokens
assert(map.getKeyAtIndex(2) == address(2));
}
}
-Merkle tree allows you to cryptographically prove that an element is contained
+`,Au=({prev:s,next:a})=>i.jsx(u,{version:du,title:Iu,description:Cu,html:uu,prev:s,next:a,codes:ju}),yu="0.8.24",mu="Merkle Tree",bu="Learn about Merkle tree in Solidity",wu=[{fileName:"MerkleTree.sol",code:"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"}],ku=`Merkle tree allows you to cryptographically prove that an element is contained
in a set without revealing the entire set.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -2049,7 +2049,7 @@ How to swap tokens
0x995788ffc103b987ad50f5e5707fd094419eb12d9552cc423bd0cd86a3861433
*/
}
-If you have a contract that will be deployed multiple times, use minimal proxy contract to deploy them cheaply.
+`,Zu=({prev:s,next:a})=>i.jsx(u,{version:yu,title:mu,description:bu,html:ku,prev:s,next:a,codes:wu}),Wu="0.8.24",Gu="Minimal Proxy Contract",Bu="Deploy contracts cheaply with minimal proxy contract",Vu=[{fileName:"MinimalProxy.sol",code:"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"}],fu=`If you have a contract that will be deployed multiple times, use minimal proxy contract to deploy them cheaply.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -2121,7 +2121,7 @@ How to swap tokens
}
}
}
-An example of contract that aggregates multiple queries using a for loop and staticcall.
An example of contract that aggregates multiple queries using a for loop and staticcall.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -2157,7 +2157,7 @@ How to swap tokens
return abi.encodeWithSelector(this.test.selector, _i);
}
}
-An example of calling multiple functions with a single transaction, using delegatecall.
An example of calling multiple functions with a single transaction, using delegatecall.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -2483,7 +2483,7 @@ PUSH1 0x0a
PUSH1 0x16
RETURN
*/
-TimeLock is a contract that publishes a transaction to be executed in the future.
+`,sA=({prev:s,next:a})=>i.jsx(u,{version:_u,title:Ou,description:Pu,html:qu,prev:s,next:a,codes:$u}),aA="0.8.24",nA="Time Lock",lA="Time Lock",pA=[{fileName:"TimeLock.sol",code:"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"}],eA=`
TimeLock is a contract that publishes a transaction to be executed in the future.
After a mimimum waiting period, the transaction can be executed.
TimeLocks are commonly used in DAOs.
// SPDX-License-Identifier: MIT
@@ -2634,7 +2634,7 @@ After a mimimum waiting period, the transaction can be executed.
emit Cancel(_txId);
}
}
-Payment channels allow participants to repeatedly transfer Ether off chain.
+`,cA=({prev:s,next:a})=>i.jsx(u,{version:aA,title:nA,description:lA,html:eA,prev:s,next:a,codes:pA}),tA="0.8.24",oA="Uni-Directional Payment Channel",rA="An example of uni-directional payment channels in Solidity",iA=[{fileName:"ECDSA.sol",code:"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"},{fileName:"UniDirectionalPaymentChannel.sol",code:"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"}],gA=`Payment channels allow participants to repeatedly transfer Ether off chain.
Here is how this contract is used:
Alice deploys the contract, funding it with some Ether.Example of upgradeable proxy contract. Never use this in production.
+`,hA=({prev:s,next:a})=>i.jsx(u,{version:tA,title:oA,description:rA,html:gA,prev:s,next:a,codes:iA}),dA="0.8.24",IA="Upgradeable Proxy",CA="Example of upgradeable proxy",jA=[{fileName:"UpgradeableProxy.sol",code:"// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

// Transparent upgradeable proxy pattern

contract CounterV1 {
    uint256 public count;

    function inc() external {
        count += 1;
    }
}

contract CounterV2 {
    uint256 public count;

    function inc() external {
        count += 1;
    }

    function dec() external {
        count -= 1;
    }
}

contract BuggyProxy {
    address public implementation;
    address public admin;

    constructor() {
        admin = msg.sender;
    }

    function _delegate() private {
        (bool ok,) = implementation.delegatecall(msg.data);
        require(ok, "delegatecall failed");
    }

    fallback() external payable {
        _delegate();
    }

    receive() external payable {
        _delegate();
    }

    function upgradeTo(address _implementation) external {
        require(msg.sender == admin, "not authorized");
        implementation = _implementation;
    }
}

contract Dev {
    function selectors() external view returns (bytes4, bytes4, bytes4) {
        return (
            Proxy.admin.selector,
            Proxy.implementation.selector,
            Proxy.upgradeTo.selector
        );
    }
}

contract Proxy {
    // All functions / variables should be private, forward all calls to fallback

    // -1 for unknown preimage
    // 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc
    bytes32 private constant IMPLEMENTATION_SLOT =
        bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1);
    // 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103
    bytes32 private constant ADMIN_SLOT =
        bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1);

    constructor() {
        _setAdmin(msg.sender);
    }

    modifier ifAdmin() {
        if (msg.sender == _getAdmin()) {
            _;
        } else {
            _fallback();
        }
    }

    function _getAdmin() private view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    function _setAdmin(address _admin) private {
        require(_admin != address(0), "admin = zero address");
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = _admin;
    }

    function _getImplementation() private view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    function _setImplementation(address _implementation) private {
        require(
            _implementation.code.length > 0, "implementation is not contract"
        );
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = _implementation;
    }

    // Admin interface //
    function changeAdmin(address _admin) external ifAdmin {
        _setAdmin(_admin);
    }

    // 0x3659cfe6
    function upgradeTo(address _implementation) external ifAdmin {
        _setImplementation(_implementation);
    }

    // 0xf851a440
    function admin() external ifAdmin returns (address) {
        return _getAdmin();
    }

    // 0x5c60da1b
    function implementation() external ifAdmin returns (address) {
        return _getImplementation();
    }

    // User interface //
    function _delegate(address _implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.

            // calldatacopy(t, f, s) - copy s bytes from calldata at position f to mem at position t
            // calldatasize() - size of call data in bytes
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.

            // delegatecall(g, a, in, insize, out, outsize) -
            // - call contract at address a
            // - with input mem[in…(in+insize))
            // - providing g gas
            // - and output area mem[out…(out+outsize))
            // - returning 0 on error (eg. out of gas) and 1 on success
            let result :=
                delegatecall(gas(), _implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            // returndatacopy(t, f, s) - copy s bytes from returndata at position f to mem at position t
            // returndatasize() - size of the last returndata
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                // revert(p, s) - end execution, revert state changes, return data mem[p…(p+s))
                revert(0, returndatasize())
            }
            default {
                // return(p, s) - end execution, return data mem[p…(p+s))
                return(0, returndatasize())
            }
        }
    }

    function _fallback() private {
        _delegate(_getImplementation());
    }

    fallback() external payable {
        _fallback();
    }

    receive() external payable {
        _fallback();
    }
}

contract ProxyAdmin {
    address public owner;

    constructor() {
        owner = msg.sender;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "not owner");
        _;
    }

    function getProxyAdmin(address proxy) external view returns (address) {
        (bool ok, bytes memory res) =
            proxy.staticcall(abi.encodeCall(Proxy.admin, ()));
        require(ok, "call failed");
        return abi.decode(res, (address));
    }

    function getProxyImplementation(address proxy)
        external
        view
        returns (address)
    {
        (bool ok, bytes memory res) =
            proxy.staticcall(abi.encodeCall(Proxy.implementation, ()));
        require(ok, "call failed");
        return abi.decode(res, (address));
    }

    function changeProxyAdmin(address payable proxy, address admin)
        external
        onlyOwner
    {
        Proxy(proxy).changeAdmin(admin);
    }

    function upgrade(address payable proxy, address implementation)
        external
        onlyOwner
    {
        Proxy(proxy).upgradeTo(implementation);
    }
}

library StorageSlot {
    struct AddressSlot {
        address value;
    }

    function getAddressSlot(bytes32 slot)
        internal
        pure
        returns (AddressSlot storage r)
    {
        assembly {
            r.slot := slot
        }
    }
}

contract TestSlot {
    bytes32 public constant slot = keccak256("TEST_SLOT");

    function getSlot() external view returns (address) {
        return StorageSlot.getAddressSlot(slot).value;
    }

    function writeSlot(address _addr) external {
        StorageSlot.getAddressSlot(slot).value = _addr;
    }
}
"}],uA=`Example of upgradeable proxy contract. Never use this in production.
This example shows
delegatecall and return data when fallback is called.Solidity storage is like an array of length 2^256. +`,AA=({prev:s,next:a})=>i.jsx(u,{version:dA,title:IA,description:CA,html:uA,prev:s,next:a,codes:jA}),yA="0.8.24",mA="Write to Any Slot",bA="Write to Any Slot",wA=[{fileName:"Slot.sol",code:"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"}],kA=`
Solidity storage is like an array of length 2^256. Each slot in the array can store 32 bytes.
Order of declaration and the type of state variables define which slots it will use.
However using assembly, you can write to any slot.
@@ -3180,7 +3180,7 @@ Each slot in the array can store 32 bytes. return data.value; } } -`,Zy=({prev:s,next:a})=>i.jsx(u,{version:Ay,title:my,description:by,html:ky,prev:s,next:a,codes:wy}),Wy="0.8.24",Gy="Array",By="Learn about arrays in Solidity",fy=[{fileName:"Array.sol",code:"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"},{fileName:"ArrayRemoveByShifting.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IEFycmF5UmVtb3ZlQnlTaGlmdGluZyB7CiAgICAvLyBbMSwgMiwgM10gLS0gcmVtb3ZlKDEpIC0tPiBbMSwgMywgM10gLS0+IFsxLCAzXQogICAgLy8gWzEsIDIsIDMsIDQsIDUsIDZdIC0tIHJlbW92ZSgyKSAtLT4gWzEsIDIsIDQsIDUsIDYsIDZdIC0tPiBbMSwgMiwgNCwgNSwgNl0KICAgIC8vIFsxLCAyLCAzLCA0LCA1LCA2XSAtLSByZW1vdmUoMCkgLS0+IFsyLCAzLCA0LCA1LCA2LCA2XSAtLT4gWzIsIDMsIDQsIDUsIDZdCiAgICAvLyBbMV0gLS0gcmVtb3ZlKDApIC0tPiBbMV0gLS0+IFtdCgogICAgdWludDI1NltdIHB1YmxpYyBhcnI7CgogICAgZnVuY3Rpb24gcmVtb3ZlKHVpbnQyNTYgX2luZGV4KSBwdWJsaWMgewogICAgICAgIHJlcXVpcmUoX2luZGV4IDwgYXJyLmxlbmd0aCwgImluZGV4IG91dCBvZiBib3VuZCIpOwoKICAgICAgICBmb3IgKHVpbnQyNTYgaSA9IF9pbmRleDsgaSA8IGFyci5sZW5ndGggLSAxOyBpKyspIHsKICAgICAgICAgICAgYXJyW2ldID0gYXJyW2kgKyAxXTsKICAgICAgICB9CiAgICAgICAgYXJyLnBvcCgpOwogICAgfQoKICAgIGZ1bmN0aW9uIHRlc3QoKSBleHRlcm5hbCB7CiAgICAgICAgYXJyID0gWzEsIDIsIDMsIDQsIDVdOwogICAgICAgIHJlbW92ZSgyKTsKICAgICAgICAvLyBbMSwgMiwgNCwgNV0KICAgICAgICBhc3NlcnQoYXJyWzBdID09IDEpOwogICAgICAgIGFzc2VydChhcnJbMV0gPT0gMik7CiAgICAgICAgYXNzZXJ0KGFyclsyXSA9PSA0KTsKICAgICAgICBhc3NlcnQoYXJyWzNdID09IDUpOwogICAgICAgIGFzc2VydChhcnIubGVuZ3RoID09IDQpOwoKICAgICAgICBhcnIgPSBbMV07CiAgICAgICAgcmVtb3ZlKDApOwogICAgICAgIC8vIFtdCiAgICAgICAgYXNzZXJ0KGFyci5sZW5ndGggPT0gMCk7CiAgICB9Cn0K"},{fileName:"ArrayReplaceFromEnd.sol",code:"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"}],Vy=`Array can have a compile-time fixed size or a dynamic size.
+`,ZA=({prev:s,next:a})=>i.jsx(u,{version:yA,title:mA,description:bA,html:kA,prev:s,next:a,codes:wA}),WA="0.8.24",GA="Array",BA="Learn about arrays in Solidity",VA=[{fileName:"Array.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IEFycmF5IHsKICAgIC8vIFNldmVyYWwgd2F5cyB0byBpbml0aWFsaXplIGFuIGFycmF5CiAgICB1aW50MjU2W10gcHVibGljIGFycjsKICAgIHVpbnQyNTZbXSBwdWJsaWMgYXJyMiA9IFsxLCAyLCAzXTsKICAgIC8vIEZpeGVkIHNpemVkIGFycmF5LCBhbGwgZWxlbWVudHMgaW5pdGlhbGl6ZSB0byAwCiAgICB1aW50MjU2WzEwXSBwdWJsaWMgbXlGaXhlZFNpemVBcnI7CgogICAgZnVuY3Rpb24gZ2V0KHVpbnQyNTYgaSkgcHVibGljIHZpZXcgcmV0dXJucyAodWludDI1NikgewogICAgICAgIHJldHVybiBhcnJbaV07CiAgICB9CgogICAgLy8gU29saWRpdHkgY2FuIHJldHVybiB0aGUgZW50aXJlIGFycmF5LgogICAgLy8gQnV0IHRoaXMgZnVuY3Rpb24gc2hvdWxkIGJlIGF2b2lkZWQgZm9yCiAgICAvLyBhcnJheXMgdGhhdCBjYW4gZ3JvdyBpbmRlZmluaXRlbHkgaW4gbGVuZ3RoLgogICAgZnVuY3Rpb24gZ2V0QXJyKCkgcHVibGljIHZpZXcgcmV0dXJucyAodWludDI1NltdIG1lbW9yeSkgewogICAgICAgIHJldHVybiBhcnI7CiAgICB9CgogICAgZnVuY3Rpb24gcHVzaCh1aW50MjU2IGkpIHB1YmxpYyB7CiAgICAgICAgLy8gQXBwZW5kIHRvIGFycmF5CiAgICAgICAgLy8gVGhpcyB3aWxsIGluY3JlYXNlIHRoZSBhcnJheSBsZW5ndGggYnkgMS4KICAgICAgICBhcnIucHVzaChpKTsKICAgIH0KCiAgICBmdW5jdGlvbiBwb3AoKSBwdWJsaWMgewogICAgICAgIC8vIFJlbW92ZSBsYXN0IGVsZW1lbnQgZnJvbSBhcnJheQogICAgICAgIC8vIFRoaXMgd2lsbCBkZWNyZWFzZSB0aGUgYXJyYXkgbGVuZ3RoIGJ5IDEKICAgICAgICBhcnIucG9wKCk7CiAgICB9CgogICAgZnVuY3Rpb24gZ2V0TGVuZ3RoKCkgcHVibGljIHZpZXcgcmV0dXJucyAodWludDI1NikgewogICAgICAgIHJldHVybiBhcnIubGVuZ3RoOwogICAgfQoKICAgIGZ1bmN0aW9uIHJlbW92ZSh1aW50MjU2IGluZGV4KSBwdWJsaWMgewogICAgICAgIC8vIERlbGV0ZSBkb2VzIG5vdCBjaGFuZ2UgdGhlIGFycmF5IGxlbmd0aC4KICAgICAgICAvLyBJdCByZXNldHMgdGhlIHZhbHVlIGF0IGluZGV4IHRvIGl0J3MgZGVmYXVsdCB2YWx1ZSwKICAgICAgICAvLyBpbiB0aGlzIGNhc2UgMAogICAgICAgIGRlbGV0ZSBhcnJbaW5kZXhdOwogICAgfQoKICAgIGZ1bmN0aW9uIGV4YW1wbGVzKCkgZXh0ZXJuYWwgewogICAgICAgIC8vIGNyZWF0ZSBhcnJheSBpbiBtZW1vcnksIG9ubHkgZml4ZWQgc2l6ZSBjYW4gYmUgY3JlYXRlZAogICAgICAgIHVpbnQyNTZbXSBtZW1vcnkgYSA9IG5ldyB1aW50MjU2W10oNSk7CiAgICB9Cn0K"},{fileName:"ArrayRemoveByShifting.sol",code:"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"},{fileName:"ArrayReplaceFromEnd.sol",code:"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"}],fA=`Array can have a compile-time fixed size or a dynamic size.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3302,7 +3302,7 @@ Each slot in the array can store 32 bytes.
assert(arr[1] == 4);
}
}
-Example of error in assembly
Example of error in assembly
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3316,7 +3316,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-Example of conditional statements in assembly
Example of conditional statements in assembly
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3340,7 +3340,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-Example of loop in assembly
+`,zA=({prev:s,next:a})=>i.jsx(u,{version:KA,title:SA,description:MA,html:JA,prev:s,next:a,codes:xA}),EA="0.8.24",UA="Assembly Loop",TA="Example of loop in assembly",QA=[{fileName:"AssemblyLoop.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IEFzc2VtYmx5TG9vcCB7CiAgICBmdW5jdGlvbiB5dWxfZm9yX2xvb3AoKSBwdWJsaWMgcHVyZSByZXR1cm5zICh1aW50MjU2IHopIHsKICAgICAgICBhc3NlbWJseSB7CiAgICAgICAgICAgIGZvciB7IGxldCBpIDo9IDAgfSBsdChpLCAxMCkgeyBpIDo9IGFkZChpLCAxKSB9IHsgeiA6PSBhZGQoeiwgMSkgfQogICAgICAgIH0KICAgIH0KCiAgICBmdW5jdGlvbiB5dWxfd2hpbGVfbG9vcCgpIHB1YmxpYyBwdXJlIHJldHVybnMgKHVpbnQyNTYgeikgewogICAgICAgIGFzc2VtYmx5IHsKICAgICAgICAgICAgbGV0IGkgOj0gMAogICAgICAgICAgICBmb3Ige30gbHQoaSwgNSkge30gewogICAgICAgICAgICAgICAgaSA6PSBhZGQoaSwgMSkKICAgICAgICAgICAgICAgIHogOj0gYWRkKHosIDEpCiAgICAgICAgICAgIH0KICAgICAgICB9CiAgICB9Cn0K"}],DA=`Example of loop in assembly
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3361,7 +3361,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-Example of math in assembly
Example of math in assembly
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3406,7 +3406,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-Example of how to declare variables inside assembly
Example of how to declare variables inside assembly
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3420,7 +3420,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
contract BitwiseOps {
@@ -3629,7 +3629,7 @@ Each slot in the array can store 32 bytes.
}
}
}
-call is a low level function to interact with other contracts.
call is a low level function to interact with other contracts.
This is the recommended method to use when you're just sending Ether via calling the fallback function.
However it is not the recommend way to call existing functions.
Contract can call other contracts in 2 ways.
+`,Ay=({prev:s,next:a})=>i.jsx(u,{version:dy,title:Iy,description:Cy,html:uy,prev:s,next:a,codes:jy}),yy="0.8.24",my="Calling Other Contract",by="In Solidity, contract can call other contracts in several ways",wy=[{fileName:"CallingContract.sol",code:"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"}],ky=`Contract can call other contracts in 2 ways.
The easiest way to is to just call it, like A.foo(x, y, z).
Another way to call other contracts is to use the low-level call.
This method is not recommended.
@@ -3726,7 +3726,7 @@ Each slot in the array can store 32 bytes. _callee.setXandSendEther{value: msg.value}(_x); } } -`,ZA=({prev:s,next:a})=>i.jsx(u,{version:AA,title:mA,description:bA,html:kA,prev:s,next:a,codes:wA}),WA="0.8.24",GA="Constants",BA="Constant variables",fA=[{fileName:"Constants.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IENvbnN0YW50cyB7CiAgICAvLyBjb2RpbmcgY29udmVudGlvbiB0byB1cHBlcmNhc2UgY29uc3RhbnQgdmFyaWFibGVzCiAgICBhZGRyZXNzIHB1YmxpYyBjb25zdGFudCBNWV9BRERSRVNTID0KICAgICAgICAweDc3Nzc4ODg4OTk5OUFhQUFiQmJiQ2NjY2RkRGRlZWVFZkZGZkNjQ2M7CiAgICB1aW50MjU2IHB1YmxpYyBjb25zdGFudCBNWV9VSU5UID0gMTIzOwp9Cg=="}],VA=`Constants are variables that cannot be modified.
+`,Zy=({prev:s,next:a})=>i.jsx(u,{version:yy,title:my,description:by,html:ky,prev:s,next:a,codes:wy}),Wy="0.8.24",Gy="Constants",By="Constant variables",Vy=[{fileName:"Constants.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IENvbnN0YW50cyB7CiAgICAvLyBjb2RpbmcgY29udmVudGlvbiB0byB1cHBlcmNhc2UgY29uc3RhbnQgdmFyaWFibGVzCiAgICBhZGRyZXNzIHB1YmxpYyBjb25zdGFudCBNWV9BRERSRVNTID0KICAgICAgICAweDc3Nzc4ODg4OTk5OUFhQUFiQmJiQ2NjY2RkRGRlZWVFZkZGZkNjQ2M7CiAgICB1aW50MjU2IHB1YmxpYyBjb25zdGFudCBNWV9VSU5UID0gMTIzOwp9Cg=="}],fy=`Constants are variables that cannot be modified.
Their value is hard coded and using constants can save gas cost.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3737,7 +3737,7 @@ Each slot in the array can store 32 bytes.
0x777788889999AaAAbBbbCcccddDdeeeEfFFfCcCc;
uint256 public constant MY_UINT = 123;
}
-A constructor is an optional function that is executed upon contract creation.
A constructor is an optional function that is executed upon contract creation.
Here are examples of how to pass arguments to constructors.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3790,7 +3790,7 @@ Each slot in the array can store 32 bytes.
contract E is X, Y {
constructor() Y("Y was called") X("X was called") {}
}
-Variables are declared as either storage, memory or calldata to explicitly
+`,Fy=({prev:s,next:a})=>i.jsx(u,{version:Ry,title:Xy,description:vy,html:Hy,prev:s,next:a,codes:Ny}),Ky="0.8.24",Sy="Data Locations - Storage, Memory and Calldata",My="Data locations - storage, memory and calldata",xy=[{fileName:"DataLocations.sol",code:"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"}],Jy=`
Variables are declared as either storage, memory or calldata to explicitly
specify the location of the data.
storage - variable is a state variable (store on blockchain)// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -3875,7 +3875,7 @@ specify the location of the data.
uint80 answeredInRound
);
}
-Constant product AMM XY = K
Constant product AMM XY = K
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -4131,7 +4131,7 @@ specify the location of the data.
external
returns (bool);
}
-Constant sum AMM X + Y = K
Constant sum AMM X + Y = K
Tokens trade one to one.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -4612,7 +4612,7 @@ specify the location of the data.
external
returns (bool);
}
-Simplified version of Curve's stable swap AMM
+`,Am=({prev:s,next:a})=>i.jsx(u,{version:dm,title:Im,description:Cm,html:um,prev:s,next:a,codes:jm}),ym="0.8.24",mm="Stable Swap AMM",bm="Curve's stable swap AMM",wm=[{fileName:"StableSwap.sol",code:"// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

/*
Invariant - price of trade and amount of liquidity are determined by this equation

An^n sum(x_i) + D = ADn^n + D^(n + 1) / (n^n prod(x_i))

Topics
0. Newton's method x_(n + 1) = x_n - f(x_n) / f'(x_n)
1. Invariant
2. Swap
   - Calculate Y
   - Calculate D
3. Get virtual price
4. Add liquidity
   - Imbalance fee
5. Remove liquidity
6. Remove liquidity one token
   - Calculate withdraw one token
   - getYD
TODO: test?
*/

library Math {
    function abs(uint256 x, uint256 y) internal pure returns (uint256) {
        return x >= y ? x - y : y - x;
    }
}

contract StableSwap {
    // Number of tokens
    uint256 private constant N = 3;
    // Amplification coefficient multiplied by N^(N - 1)
    // Higher value makes the curve more flat
    // Lower value makes the curve more like constant product AMM
    uint256 private constant A = 1000 * (N ** (N - 1));
    // 0.03%
    uint256 private constant SWAP_FEE = 300;
    // Liquidity fee is derived from 2 constraints
    // 1. Fee is 0 for adding / removing liquidity that results in a balanced pool
    // 2. Swapping in a balanced pool is like adding and then removing liquidity
    //    from a balanced pool
    // swap fee = add liquidity fee + remove liquidity fee
    uint256 private constant LIQUIDITY_FEE = (SWAP_FEE * N) / (4 * (N - 1));
    uint256 private constant FEE_DENOMINATOR = 1e6;

    address[N] public tokens;
    // Normalize each token to 18 decimals
    // Example - DAI (18 decimals), USDC (6 decimals), USDT (6 decimals)
    uint256[N] private multipliers = [1, 1e12, 1e12];
    uint256[N] public balances;

    // 1 share = 1e18, 18 decimals
    uint256 private constant DECIMALS = 18;
    uint256 public totalSupply;
    mapping(address => uint256) public balanceOf;

    constructor(address[N] memory _tokens) {
        tokens = _tokens;
    }

    function _mint(address _to, uint256 _amount) private {
        balanceOf[_to] += _amount;
        totalSupply += _amount;
    }

    function _burn(address _from, uint256 _amount) private {
        balanceOf[_from] -= _amount;
        totalSupply -= _amount;
    }

    // Return precision-adjusted balances, adjusted to 18 decimals
    function _xp() private view returns (uint256[N] memory xp) {
        for (uint256 i; i < N; ++i) {
            xp[i] = balances[i] * multipliers[i];
        }
    }

    /**
     * @notice Calculate D, sum of balances in a perfectly balanced pool
     * If balances of x_0, x_1, ... x_(n-1) then sum(x_i) = D
     * @param xp Precision-adjusted balances
     * @return D
     */
    function _getD(uint256[N] memory xp) private pure returns (uint256) {
        /*
        Newton's method to compute D
        -----------------------------
        f(D) = ADn^n + D^(n + 1) / (n^n prod(x_i)) - An^n sum(x_i) - D 
        f'(D) = An^n + (n + 1) D^n / (n^n prod(x_i)) - 1

                     (as + np)D_n
        D_(n+1) = -----------------------
                  (a - 1)D_n + (n + 1)p

        a = An^n
        s = sum(x_i)
        p = (D_n)^(n + 1) / (n^n prod(x_i))
        */
        uint256 a = A * N; // An^n

        uint256 s; // x_0 + x_1 + ... + x_(n-1)
        for (uint256 i; i < N; ++i) {
            s += xp[i];
        }

        // Newton's method
        // Initial guess, d <= s
        uint256 d = s;
        uint256 d_prev;
        for (uint256 i; i < 255; ++i) {
            // p = D^(n + 1) / (n^n * x_0 * ... * x_(n-1))
            uint256 p = d;
            for (uint256 j; j < N; ++j) {
                p = (p * d) / (N * xp[j]);
            }
            d_prev = d;
            d = ((a * s + N * p) * d) / ((a - 1) * d + (N + 1) * p);

            if (Math.abs(d, d_prev) <= 1) {
                return d;
            }
        }
        revert("D didn't converge");
    }

    /**
     * @notice Calculate the new balance of token j given the new balance of token i
     * @param i Index of token in
     * @param j Index of token out
     * @param x New balance of token i
     * @param xp Current precision-adjusted balances
     */
    function _getY(uint256 i, uint256 j, uint256 x, uint256[N] memory xp)
        private
        pure
        returns (uint256)
    {
        /*
        Newton's method to compute y
        -----------------------------
        y = x_j

        f(y) = y^2 + y(b - D) - c

                    y_n^2 + c
        y_(n+1) = --------------
                   2y_n + b - D

        where
        s = sum(x_k), k != j
        p = prod(x_k), k != j
        b = s + D / (An^n)
        c = D^(n + 1) / (n^n * p * An^n)
        */
        uint256 a = A * N;
        uint256 d = _getD(xp);
        uint256 s;
        uint256 c = d;

        uint256 _x;
        for (uint256 k; k < N; ++k) {
            if (k == i) {
                _x = x;
            } else if (k == j) {
                continue;
            } else {
                _x = xp[k];
            }

            s += _x;
            c = (c * d) / (N * _x);
        }
        c = (c * d) / (N * a);
        uint256 b = s + d / a;

        // Newton's method
        uint256 y_prev;
        // Initial guess, y <= d
        uint256 y = d;
        for (uint256 _i; _i < 255; ++_i) {
            y_prev = y;
            y = (y * y + c) / (2 * y + b - d);
            if (Math.abs(y, y_prev) <= 1) {
                return y;
            }
        }
        revert("y didn't converge");
    }

    /**
     * @notice Calculate the new balance of token i given precision-adjusted
     * balances xp and liquidity d
     * @dev Equation is calculate y is same as _getY
     * @param i Index of token to calculate the new balance
     * @param xp Precision-adjusted balances
     * @param d Liquidity d
     * @return New balance of token i
     */
    function _getYD(uint256 i, uint256[N] memory xp, uint256 d)
        private
        pure
        returns (uint256)
    {
        uint256 a = A * N;
        uint256 s;
        uint256 c = d;

        uint256 _x;
        for (uint256 k; k < N; ++k) {
            if (k != i) {
                _x = xp[k];
            } else {
                continue;
            }

            s += _x;
            c = (c * d) / (N * _x);
        }
        c = (c * d) / (N * a);
        uint256 b = s + d / a;

        // Newton's method
        uint256 y_prev;
        // Initial guess, y <= d
        uint256 y = d;
        for (uint256 _i; _i < 255; ++_i) {
            y_prev = y;
            y = (y * y + c) / (2 * y + b - d);
            if (Math.abs(y, y_prev) <= 1) {
                return y;
            }
        }
        revert("y didn't converge");
    }

    // Estimate value of 1 share
    // How many tokens is one share worth?
    function getVirtualPrice() external view returns (uint256) {
        uint256 d = _getD(_xp());
        uint256 _totalSupply = totalSupply;
        if (_totalSupply > 0) {
            return (d * 10 ** DECIMALS) / _totalSupply;
        }
        return 0;
    }

    /**
     * @notice Swap dx amount of token i for token j
     * @param i Index of token in
     * @param j Index of token out
     * @param dx Token in amount
     * @param minDy Minimum token out
     */
    function swap(uint256 i, uint256 j, uint256 dx, uint256 minDy)
        external
        returns (uint256 dy)
    {
        require(i != j, "i = j");

        IERC20(tokens[i]).transferFrom(msg.sender, address(this), dx);

        // Calculate dy
        uint256[N] memory xp = _xp();
        uint256 x = xp[i] + dx * multipliers[i];

        uint256 y0 = xp[j];
        uint256 y1 = _getY(i, j, x, xp);
        // y0 must be >= y1, since x has increased
        // -1 to round down
        dy = (y0 - y1 - 1) / multipliers[j];

        // Subtract fee from dy
        uint256 fee = (dy * SWAP_FEE) / FEE_DENOMINATOR;
        dy -= fee;
        require(dy >= minDy, "dy < min");

        balances[i] += dx;
        balances[j] -= dy;

        IERC20(tokens[j]).transfer(msg.sender, dy);
    }

    function addLiquidity(uint256[N] calldata amounts, uint256 minShares)
        external
        returns (uint256 shares)
    {
        // calculate current liquidity d0
        uint256 _totalSupply = totalSupply;
        uint256 d0;
        uint256[N] memory old_xs = _xp();
        if (_totalSupply > 0) {
            d0 = _getD(old_xs);
        }

        // Transfer tokens in
        uint256[N] memory new_xs;
        for (uint256 i; i < N; ++i) {
            uint256 amount = amounts[i];
            if (amount > 0) {
                IERC20(tokens[i]).transferFrom(
                    msg.sender, address(this), amount
                );
                new_xs[i] = old_xs[i] + amount * multipliers[i];
            } else {
                new_xs[i] = old_xs[i];
            }
        }

        // Calculate new liquidity d1
        uint256 d1 = _getD(new_xs);
        require(d1 > d0, "liquidity didn't increase");

        // Reccalcuate D accounting for fee on imbalance
        uint256 d2;
        if (_totalSupply > 0) {
            for (uint256 i; i < N; ++i) {
                // TODO: why old_xs[i] * d1 / d0? why not d1 / N?
                uint256 idealBalance = (old_xs[i] * d1) / d0;
                uint256 diff = Math.abs(new_xs[i], idealBalance);
                new_xs[i] -= (LIQUIDITY_FEE * diff) / FEE_DENOMINATOR;
            }

            d2 = _getD(new_xs);
        } else {
            d2 = d1;
        }

        // Update balances
        for (uint256 i; i < N; ++i) {
            balances[i] += amounts[i];
        }

        // Shares to mint = (d2 - d0) / d0 * total supply
        // d1 >= d2 >= d0
        if (_totalSupply > 0) {
            shares = ((d2 - d0) * _totalSupply) / d0;
        } else {
            shares = d2;
        }
        require(shares >= minShares, "shares < min");
        _mint(msg.sender, shares);
    }

    function removeLiquidity(uint256 shares, uint256[N] calldata minAmountsOut)
        external
        returns (uint256[N] memory amountsOut)
    {
        uint256 _totalSupply = totalSupply;

        for (uint256 i; i < N; ++i) {
            uint256 amountOut = (balances[i] * shares) / _totalSupply;
            require(amountOut >= minAmountsOut[i], "out < min");

            balances[i] -= amountOut;
            amountsOut[i] = amountOut;

            IERC20(tokens[i]).transfer(msg.sender, amountOut);
        }

        _burn(msg.sender, shares);
    }

    /**
     * @notice Calculate amount of token i to receive for shares
     * @param shares Shares to burn
     * @param i Index of token to withdraw
     * @return dy Amount of token i to receive
     *         fee Fee for withdraw. Fee already included in dy
     */
    function _calcWithdrawOneToken(uint256 shares, uint256 i)
        private
        view
        returns (uint256 dy, uint256 fee)
    {
        uint256 _totalSupply = totalSupply;
        uint256[N] memory xp = _xp();

        // Calculate d0 and d1
        uint256 d0 = _getD(xp);
        uint256 d1 = d0 - (d0 * shares) / _totalSupply;

        // Calculate reduction in y if D = d1
        uint256 y0 = _getYD(i, xp, d1);
        // d1 <= d0 so y must be <= xp[i]
        uint256 dy0 = (xp[i] - y0) / multipliers[i];

        // Calculate imbalance fee, update xp with fees
        uint256 dx;
        for (uint256 j; j < N; ++j) {
            if (j == i) {
                dx = (xp[j] * d1) / d0 - y0;
            } else {
                // d1 / d0 <= 1
                dx = xp[j] - (xp[j] * d1) / d0;
            }
            xp[j] -= (LIQUIDITY_FEE * dx) / FEE_DENOMINATOR;
        }

        // Recalculate y with xp including imbalance fees
        uint256 y1 = _getYD(i, xp, d1);
        // - 1 to round down
        dy = (xp[i] - y1 - 1) / multipliers[i];
        fee = dy0 - dy;
    }

    function calcWithdrawOneToken(uint256 shares, uint256 i)
        external
        view
        returns (uint256 dy, uint256 fee)
    {
        return _calcWithdrawOneToken(shares, i);
    }

    /**
     * @notice Withdraw liquidity in token i
     * @param shares Shares to burn
     * @param i Token to withdraw
     * @param minAmountOut Minimum amount of token i that must be withdrawn
     */
    function removeLiquidityOneToken(
        uint256 shares,
        uint256 i,
        uint256 minAmountOut
    ) external returns (uint256 amountOut) {
        (amountOut,) = _calcWithdrawOneToken(shares, i);
        require(amountOut >= minAmountOut, "out < min");

        balances[i] -= amountOut;
        _burn(msg.sender, shares);

        IERC20(tokens[i]).transfer(msg.sender, amountOut);
    }
}

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount)
        external
        returns (bool);
    function allowance(address owner, address spender)
        external
        view
        returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount)
        external
        returns (bool);
}
"}],km=`Simplified version of Curve's stable swap AMM
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -5064,7 +5064,7 @@ Topics
external
returns (bool);
}
-This is a minimal example of a contract that rewards users for staking their token.
+`,Zm=({prev:s,next:a})=>i.jsx(u,{version:ym,title:mm,description:bm,html:km,prev:s,next:a,codes:wm}),Wm="0.8.24",Gm="Staking Rewards",Bm="Staking rewards contract based on Synthetix StakingRewards.sol",Vm=[{fileName:"StakingRewards.sol",code:"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"}],fm=`This is a minimal example of a contract that rewards users for staking their token.
Code is a stripped down version of Synthetix StakingRewards.sol
// SPDX-License-Identifier: MIT
@@ -5211,7 +5211,7 @@ Topics
external
returns (bool);
}
-swapExactTokensForTokens sells all tokens for another.
swapExactTokensForTokens sells all tokens for another.
swapTokensForExactTokens buys specific amount of tokens set by the caller.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -5463,7 +5463,7 @@ Topics
);
}
}
-// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -6624,93 +6624,201 @@ IERC20 constant PAIR Uniswap V3
-`,yb=({prev:s,next:a})=>i.jsx(u,{version:db,title:Ib,description:Cb,html:ub,prev:s,next:a,codes:jb}),Ab="0.8.24",mb="Uniswap V3 Swap Examples",bb="Uniswap V3 swap examples",wb=[{fileName:"UniswapV3SwapExamples.sol",code:"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"},{fileName:"UniswapV3SwapExamplesTest.sol",code:"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"}],kb=`Uniswap V3 Swap Examples
+`,Ab=({prev:s,next:a})=>i.jsx(u,{version:db,title:Ib,description:Cb,html:ub,prev:s,next:a,codes:jb}),yb="0.8.24",mb="Uniswap V3 Swap Examples",bb="Uniswap V3 swap examples",wb=[{fileName:"UniswapV3MultiHopSwap.sol",code:"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"},{fileName:"UniswapV3MultiHopSwapTest.sol",code:"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"},{fileName:"UniswapV3SingleHopSwap.sol",code:"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"},{fileName:"UniswapV3SingleHopSwapTest.sol",code:"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"},{fileName:"UniswapV3SwapExamples.sol",code:"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"},{fileName:"UniswapV3SwapExamplesTest.sol",code:"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"}],kb=`Uniswap V3 Single Hop Swap
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
-contract UniswapV3SwapExamples {
- ISwapRouter constant router =
- ISwapRouter(0xE592427A0AEce92De3Edee1F18E0157C05861564);
+address constant SWAP_ROUTER_02 = 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45;
+address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
+address constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
- function swapExactInputSingleHop(
- address tokenIn,
- address tokenOut,
- uint24 poolFee,
- uint256 amountIn
- ) external returns (uint256 amountOut) {
- IERC20(tokenIn).transferFrom(msg.sender, address(this), amountIn);
- IERC20(tokenIn).approve(address(router), amountIn);
+contract UniswapV3SingleHopSwap {
+ ISwapRouter02 private constant router = ISwapRouter02(SWAP_ROUTER_02);
+ IERC20 private constant weth = IERC20(WETH);
+ IERC20 private constant dai = IERC20(DAI);
- ISwapRouter.ExactInputSingleParams memory params = ISwapRouter
+ function swapExactInputSingleHop(uint256 amountIn, uint256 amountOutMin)
+ external
+ {
+ weth.transferFrom(msg.sender, address(this), amountIn);
+ weth.approve(address(router), amountIn);
+
+ ISwapRouter02.ExactInputSingleParams memory params = ISwapRouter02
.ExactInputSingleParams({
- tokenIn: tokenIn,
- tokenOut: tokenOut,
- fee: poolFee,
+ tokenIn: WETH,
+ tokenOut: DAI,
+ fee: 3000,
recipient: msg.sender,
- deadline: block.timestamp,
amountIn: amountIn,
- amountOutMinimum: 0,
+ amountOutMinimum: amountOutMin,
sqrtPriceLimitX96: 0
});
- amountOut = router.exactInputSingle(params);
+ router.exactInputSingle(params);
}
- function swapExactInputMultiHop(
- bytes calldata path,
- address tokenIn,
- uint256 amountIn
- ) external returns (uint256 amountOut) {
- IERC20(tokenIn).transferFrom(msg.sender, address(this), amountIn);
- IERC20(tokenIn).approve(address(router), amountIn);
+ function swapExactOutputSingleHop(uint256 amountOut, uint256 amountInMax)
+ external
+ {
+ weth.transferFrom(msg.sender, address(this), amountInMax);
+ weth.approve(address(router), amountInMax);
- ISwapRouter.ExactInputParams memory params = ISwapRouter
- .ExactInputParams({
- path: path,
+ ISwapRouter02.ExactOutputSingleParams memory params = ISwapRouter02
+ .ExactOutputSingleParams({
+ tokenIn: WETH,
+ tokenOut: DAI,
+ fee: 3000,
recipient: msg.sender,
- deadline: block.timestamp,
- amountIn: amountIn,
- amountOutMinimum: 0
+ amountOut: amountOut,
+ amountInMaximum: amountInMax,
+ sqrtPriceLimitX96: 0
});
- amountOut = router.exactInput(params);
+
+ uint256 amountIn = router.exactOutputSingle(params);
+
+ if (amountIn < amountInMax) {
+ weth.approve(address(router), 0);
+ weth.transfer(msg.sender, amountInMax - amountIn);
+ }
}
}
-interface ISwapRouter {
+interface ISwapRouter02 {
struct ExactInputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
- uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
uint160 sqrtPriceLimitX96;
}
- /// @notice Swaps amountIn of one token for as much as possible of another token
- /// @param params The parameters necessary for the swap, encoded as ExactInputSingleParams in calldata
- /// @return amountOut The amount of the received token
function exactInputSingle(ExactInputSingleParams calldata params)
external
payable
returns (uint256 amountOut);
+ struct ExactOutputSingleParams {
+ address tokenIn;
+ address tokenOut;
+ uint24 fee;
+ address recipient;
+ uint256 amountOut;
+ uint256 amountInMaximum;
+ uint160 sqrtPriceLimitX96;
+ }
+
+ function exactOutputSingle(ExactOutputSingleParams calldata params)
+ external
+ payable
+ returns (uint256 amountIn);
+}
+
+interface IERC20 {
+ function totalSupply() external view returns (uint256);
+ function balanceOf(address account) external view returns (uint256);
+ function transfer(address recipient, uint256 amount)
+ external
+ returns (bool);
+ function allowance(address owner, address spender)
+ external
+ view
+ returns (uint256);
+ function approve(address spender, uint256 amount) external returns (bool);
+ function transferFrom(address sender, address recipient, uint256 amount)
+ external
+ returns (bool);
+}
+
+interface IWETH is IERC20 {
+ function deposit() external payable;
+ function withdraw(uint256 amount) external;
+}
+
Uniswap V3 Multi Hop Swap
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.24;
+
+address constant SWAP_ROUTER_02 = 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45;
+address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
+address constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
+address constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
+
+contract UniswapV3MultiHopSwap {
+ ISwapRouter02 private constant router = ISwapRouter02(SWAP_ROUTER_02);
+ IERC20 private constant weth = IERC20(WETH);
+ IERC20 private constant dai = IERC20(DAI);
+
+ function swapExactInputMultiHop(uint256 amountIn, uint256 amountOutMin)
+ external
+ {
+ weth.transferFrom(msg.sender, address(this), amountIn);
+ weth.approve(address(router), amountIn);
+
+ bytes memory path =
+ abi.encodePacked(WETH, uint24(3000), USDC, uint24(100), DAI);
+
+ ISwapRouter02.ExactInputParams memory params = ISwapRouter02
+ .ExactInputParams({
+ path: path,
+ recipient: msg.sender,
+ amountIn: amountIn,
+ amountOutMinimum: amountOutMin
+ });
+
+ router.exactInput(params);
+ }
+
+ function swapExactOutputMultiHop(uint256 amountOut, uint256 amountInMax)
+ external
+ {
+ weth.transferFrom(msg.sender, address(this), amountInMax);
+ weth.approve(address(router), amountInMax);
+
+ bytes memory path =
+ abi.encodePacked(DAI, uint24(100), USDC, uint24(3000), WETH);
+
+ ISwapRouter02.ExactOutputParams memory params = ISwapRouter02
+ .ExactOutputParams({
+ path: path,
+ recipient: msg.sender,
+ amountOut: amountOut,
+ amountInMaximum: amountInMax
+ });
+
+ uint256 amountIn = router.exactOutput(params);
+
+ if (amountIn < amountInMax) {
+ weth.approve(address(router), 0);
+ weth.transfer(msg.sender, amountInMax - amountIn);
+ }
+ }
+}
+
+interface ISwapRouter02 {
struct ExactInputParams {
bytes path;
address recipient;
- uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
}
- /// @notice Swaps amountIn of one token for as much as possible of another along the specified path
- /// @param params The parameters necessary for the multi-hop swap, encoded as ExactInputParams in calldata
- /// @return amountOut The amount of the received token
function exactInput(ExactInputParams calldata params)
external
payable
returns (uint256 amountOut);
+
+ struct ExactOutputParams {
+ bytes path;
+ address recipient;
+ uint256 amountOut;
+ uint256 amountInMaximum;
+ }
+
+ function exactOutput(ExactOutputParams calldata params)
+ external
+ payable
+ returns (uint256 amountIn);
}
interface IERC20 {
@@ -6734,51 +6842,105 @@ IERC20 constant PAIR function withdraw(uint256 amount) external;
}
Test with Foundry
+Single hop test
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
import {Test, console2} from "forge-std/Test.sol";
-import "../../../src/defi/uniswap-v3-swap/UniswapV3SwapExamples.sol";
+import "../../../src/defi/uniswap-v3-swap/UniswapV3SingleHopSwap.sol";
-address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
-address constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
-address constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
+contract UniswapV3SingleHopSwapTest is Test {
+ address private constant SWAP_ROUTER_02 =
+ 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45;
+ address private constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
+ address private constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
+ address private constant DAI_WETH_POOL_3000 =
+ 0xC2e9F25Be6257c210d7Adf0D4Cd6E3E881ba25f8;
-contract UniV3SwapTest is Test {
- IWETH private weth = IWETH(WETH);
- IERC20 private dai = IERC20(DAI);
- IERC20 private usdc = IERC20(USDC);
+ IWETH private constant weth = IWETH(WETH);
+ IERC20 private constant dai = IERC20(DAI);
- UniswapV3SwapExamples private uni = new UniswapV3SwapExamples();
+ UniswapV3SingleHopSwap private swap;
- function setUp() public {}
+ uint256 private constant AMOUNT_IN = 1e18;
+ uint256 private constant AMOUNT_OUT = 50 * 1e18;
+ uint256 private constant MAX_AMOUNT_IN = 1e18;
- function testSingleHop() public {
- weth.deposit{value: 1e18}();
- weth.approve(address(uni), 1e18);
+ function setUp() public {
+ swap = new UniswapV3SingleHopSwap();
+ weth.deposit{value: AMOUNT_IN + MAX_AMOUNT_IN}();
+ weth.approve(address(swap), type(uint256).max);
+ }
- uint256 amountOut = uni.swapExactInputSingleHop(WETH, DAI, 3000, 1e18);
+ function test_swapExactInputSingleHop() public {
+ swap.swapExactInputSingleHop(AMOUNT_IN, 1);
+ uint256 d1 = dai.balanceOf(address(this));
+ assertGt(d1, 0, "DAI balance = 0");
+ }
+
+ function test_swapExactOutputSingleHop() public {
+ uint256 w0 = weth.balanceOf(address(this));
+ uint256 d0 = dai.balanceOf(address(this));
+ swap.swapExactOutputSingleHop(AMOUNT_OUT, MAX_AMOUNT_IN);
+ uint256 w1 = weth.balanceOf(address(this));
+ uint256 d1 = dai.balanceOf(address(this));
- console2.log("DAI", amountOut);
+ assertLt(w1, w0, "WETH balance didn't decrease");
+ assertGt(d1, d0, "DAI balance didn't increase");
+ assertEq(weth.balanceOf(address(swap)), 0, "WETH balance of swap != 0");
+ assertEq(dai.balanceOf(address(swap)), 0, "DAI balance of swap != 0");
}
+}
+
Multi hop test
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
- function testMultiHop() public {
- weth.deposit{value: 1e18}();
- weth.approve(address(uni), 1e18);
+import {Test, console2} from "forge-std/Test.sol";
+import "../../../src/defi/uniswap-v3-swap/UniswapV3MultiHopSwap.sol";
- bytes memory path =
- abi.encodePacked(WETH, uint24(3000), USDC, uint24(100), DAI);
+contract UniswapV3MultiHopSwapTest is Test {
+ address private constant SWAP_ROUTER_02 =
+ 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45;
+ address private constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
+ address private constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
+ address private constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
+
+ IWETH private constant weth = IWETH(WETH);
+ IERC20 private constant dai = IERC20(DAI);
+ IERC20 private constant usdc = IERC20(USDC);
- uint256 amountOut = uni.swapExactInputMultiHop(path, WETH, 1e18);
+ UniswapV3MultiHopSwap private swap;
- console2.log("DAI", amountOut);
+ uint256 private constant AMOUNT_IN = 10 * 1e18;
+ uint256 private constant AMOUNT_OUT = 20 * 1e18;
+ uint256 private constant MAX_AMOUNT_IN = 1e18;
+
+ function setUp() public {
+ swap = new UniswapV3MultiHopSwap();
+ weth.deposit{value: AMOUNT_IN + MAX_AMOUNT_IN}();
+ weth.approve(address(swap), type(uint256).max);
+ }
+
+ function test_swapExactInputMultiHop() public {
+ swap.swapExactInputMultiHop(AMOUNT_IN, 1);
+ uint256 d1 = dai.balanceOf(address(this));
+ assertGt(d1, 0, "DAI balance = 0");
+ }
+
+ function test_swapExactOutputMultiHop() public {
+ uint256 w0 = weth.balanceOf(address(this));
+ uint256 d0 = dai.balanceOf(address(this));
+ swap.swapExactOutputMultiHop(AMOUNT_OUT, MAX_AMOUNT_IN);
+ uint256 w1 = weth.balanceOf(address(this));
+ uint256 d1 = dai.balanceOf(address(this));
+
+ assertLt(w1, w0, "WETH balance didn't decrease");
+ assertGt(d1, d0, "DAI balance didn't increase");
+ assertEq(weth.balanceOf(address(swap)), 0, "WETH balance of swap != 0");
+ assertEq(dai.balanceOf(address(swap)), 0, "DAI balance of swap != 0");
}
}
-
Links
-
-
-
-`,Zb=({prev:s,next:a})=>i.jsx(u,{version:Ab,title:mb,description:bb,html:kb,prev:s,next:a,codes:wb}),Wb="0.8.24",Gb="Vault",Bb="Vault",fb=[{fileName:"Vault.sol",code:"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"}],Vb=`Simple example of vault contract, commonly used in DeFi protocols.
+Simple example of vault contract, commonly used in DeFi protocols.
Most vaults on the mainnet are more complex. Here we will focus on the math for calculating shares to mint on deposit and the amount of token to withdraw.
delegatecall is a low level function similar to call.
delegatecall is a low level function similar to call.
When contract A executes delegatecall to contract B, B's code is executed
with contract A's storage, msg.sender and msg.value.
// SPDX-License-Identifier: MIT
@@ -6906,7 +7068,7 @@ IERC20 constant PAIR Solidity supports enumerables and they are useful to model choice and keep track of state.
+Solidity supports enumerables and they are useful to model choice and keep track of state.
Enums can be declared outside of a contract.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -7203,7 +7365,7 @@ assertion probably means that there is a bug.
count -= 1;
}
}
-There are several ways to return outputs from a function.
+`,Aw=({prev:s,next:a})=>i.jsx(u,{version:dw,title:Iw,description:Cw,html:uw,prev:s,next:a,codes:jw}),yw="0.8.24",mw="Function",bw="Example of how to write functions in Solidity",ww=[{fileName:"Function.sol",code:"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"}],kw=`There are several ways to return outputs from a function.
Public functions cannot accept certain data types as inputs or outputs
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -7281,7 +7443,7 @@ assertion probably means that there is a bug.
});
}
}
-Modifiers are code that can be run before and / or after a function call.
+`,Zw=({prev:s,next:a})=>i.jsx(u,{version:yw,title:mw,description:bw,html:kw,prev:s,next:a,codes:ww}),Ww="0.8.24",Gw="Function Modifier",Bw="Example of how to write function modifier in Solidity",Vw=[{fileName:"FunctionModifier.sol",code:"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"}],fw=`Modifiers are code that can be run before and / or after a function call.
Modifiers can be used to:
When a function is called, the first 4 bytes of calldata specifies which function to call.
When a function is called, the first 4 bytes of calldata specifies which function to call.
This 4 bytes is called a function selector.
Take for example, this code below. It uses call to execute transfer on a contract at the address addr.
addr.call(abi.encodeWithSignature("transfer(address,uint256)", 0xSomeAddress, 123))
@@ -7372,7 +7534,7 @@ assertion probably means that there is a bug.
return bytes4(keccak256(bytes(_func)));
}
}
-ether do you need to pay for a transaction?ether do you need to pay for a transaction?You pay gas spent * gas price amount of ether, where
gas is a unit of computationLibraryThere are many ways to attack a smart contract to make it unusable.
One exploit we introduce here is denial of service by making the function to send Ether fail.
// SPDX-License-Identifier: MIT
@@ -7906,7 +8068,7 @@ Ether sent from KingOfEther before the new king is set.
require(sent, "Failed to send Ether");
}
}
-Contract address deployed with create is computed in the following way.
Contract address deployed with create is computed in the following way.
contract address = last 20 bytes of sha3(rlp_encode(sender, nonce))
where sender is the address of the deployer and nonce is the number of transactions sent by sender.
Hence it is possible to deploy different contracts at the same address if we can somehow reset the nonce.
Transactions take some time before they are mined. An attacker can watch the transaction pool and send a transaction, have it included in a block before the original transaction. This mechanism can be abused to re-order transactions to the attacker's advantage.
@@ -8206,7 +8368,7 @@ before the original. } } } -`,Fk=({prev:s,next:a})=>i.jsx(u,{version:Rk,title:vk,description:Xk,html:Hk,prev:s,next:a,codes:Nk}),Kk="0.8.24",Sk="Hiding Malicious Code with External Contract",Mk="An example of exploit where malicious code is hidden in an external contract in Solidity",xk=[{fileName:"ExternalContract.sol",code:"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"}],Jk=`In Solidity any address can be casted into specific contract, even if the contract at the address is not the one being casted.
This can be exploited to hide malicious code. Let's see how.
@@ -8689,7 +8851,7 @@ Here is how the functions were called locked = false; } } -`,yZ=({prev:s,next:a})=>i.jsx(u,{version:dZ,title:IZ,description:CZ,html:uZ,prev:s,next:a,codes:jZ}),AZ="0.8.24",mZ="Self Destruct",bZ="An example of how to delete your smart contract by calling seldestruct in Solidity",wZ=[{fileName:"ForceEther.sol",code:"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"},{fileName:"PreventForceEther.sol",code:"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"}],kZ=`Contracts can be deleted from the blockchain by calling selfdestruct.
Contracts can be deleted from the blockchain by calling selfdestruct.
selfdestruct sends all remaining Ether stored in the contract to a
designated address.
Signing messages off-chain and having a contract that requires that signature before executing +`,ZZ=({prev:s,next:a})=>i.jsx(u,{version:yZ,title:mZ,description:bZ,html:kZ,prev:s,next:a,codes:wZ}),WZ="0.8.24",GZ="Signature Replay",BZ="An example of a contract vulnerable to signature replay attack",VZ=[{fileName:"ECDSA.sol",code:"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"},{fileName:"PreventSigReplay.sol",code:"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"},{fileName:"SigReplay.sol",code:"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"}],fZ=`
Signing messages off-chain and having a contract that requires that signature before executing a function is a useful technique.
For example this technique is used to:
Vault shares can be inflated by donating ERC20 token to the vault.
Attacker can exploit this behavior to steal other user's deposits.
Most ERC20 have the permit function to approve a spender if a valid signature is provided.
However WETH does not. Surprisingly, when permit is called on WETH, the function call will execute without any errors.
This is because the fallback inside WETH is execute when permit is called.
Solidity supports multiple inheritance. Contracts can inherit other contract by using the is keyword.
Solidity supports multiple inheritance. Contracts can inherit other contract by using the is keyword.
Function that is going to be overridden by a child contract must be declared as virtual.
Function that is going to override a parent function must use the keyword override.
Order of inheritance is important.
@@ -9593,7 +9755,7 @@ F D,E return super.foo(); } } -`,Z0=({prev:s,next:a})=>i.jsx(u,{version:A0,title:m0,description:b0,html:k0,prev:s,next:a,codes:w0}),W0="0.8.24",G0="Interface",B0="An example of interface in Solidity",f0=[{fileName:"Interface.sol",code:"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"}],V0=`You can interact with other contracts by declaring an Interface.
You can interact with other contracts by declaring an Interface.
Interface
Libraries are similar to contracts, but you can't declare any state variable and +`,Y0=({prev:s,next:a})=>i.jsx(u,{version:W0,title:G0,description:B0,html:f0,prev:s,next:a,codes:V0}),R0="0.8.24",X0="Library",v0="Example of how to write and use libraries in your Solidity code",N0=[{fileName:"Library.sol",code:"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"}],H0=`
Libraries are similar to contracts, but you can't declare any state variable and you can't send ether.
A library is embedded into the contract if all library functions are internal.
Otherwise the library must be deployed and then linked before the contract is deployed.
@@ -9713,7 +9875,7 @@ you can't send ether. assert(arr[1] == 2); } } -`,F0=({prev:s,next:a})=>i.jsx(u,{version:R0,title:v0,description:X0,html:H0,prev:s,next:a,codes:N0}),K0="0.8.24",S0="For and While Loop",M0="Example of for and while loop in Solidity",x0=[{fileName:"Loop.sol",code:"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"}],J0=`Solidity supports for, while, and do while loops.
Solidity supports for, while, and do while loops.
Don't write loops that are unbounded as this can hit the gas limit, causing your transaction to fail.
For the reason above, while and do while loops are rarely used.
// SPDX-License-Identifier: MIT
@@ -10022,7 +10184,7 @@ you can't send ether.
require(sent, "Failed to send Ether");
}
}
-Unlike functions, state variables cannot be overridden by re-declaring it +`,AW=({prev:s,next:a})=>i.jsx(u,{version:dW,title:IW,description:CW,html:uW,prev:s,next:a,codes:jW}),yW="0.8.24",mW="Shadowing Inherited State Variables",bW="An example of shadowing state variables by inheritance",wW=[{fileName:"Shadow.sol",code:"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"}],kW=`
Unlike functions, state variables cannot be overridden by re-declaring it in the child contract.
Let's learn how to correctly override inherited state variables.
// SPDX-License-Identifier: MIT
@@ -10050,7 +10212,7 @@ in the child contract.
// C.getName returns "Contract C"
}
-Messages can be signed off chain and then verified on chain using a smart contract.
+`,ZW=({prev:s,next:a})=>i.jsx(u,{version:yW,title:mW,description:bW,html:kW,prev:s,next:a,codes:wW}),WW="0.8.24",GW="Verifying Signature",BW="An example of how to verify signatures in Solidity",VW=[{fileName:"Signature.sol",code:"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"}],fW=`Messages can be signed off chain and then verified on chain using a smart contract.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -10178,7 +10340,7 @@ How to Sign and Verify
// implicitly return (r, s, v)
}
}
-To write or update a state variable you need to send a transaction.
+`,YW=({prev:s,next:a})=>i.jsx(u,{version:WW,title:GW,description:BW,html:fW,prev:s,next:a,codes:VW}),RW="0.8.24",XW="Reading and Writing to a State Variable",vW="Reading and Writing to a State Variable",NW=[{fileName:"SimpleStorage.sol",code:"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"}],HW=`To write or update a state variable you need to send a transaction.
On the other hand, you can read state variables, for free, without any transaction fee.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
@@ -10197,7 +10359,7 @@ How to Sign and Verify
return num;
}
}
-You can define your own type by creating a struct.
You can define your own type by creating a struct.
They are useful for grouping together related data.
Structs can be declared outside of a contract and imported in another contract.
// SPDX-License-Identifier: MIT
@@ -10602,7 +10764,7 @@ echidna-test EchidnaTestTimeAndCaller.sol --contract EchidnaTestTimeAndCaller
address sender = msg.sender; // address of the caller
}
}
-Getter functions can be declared view or pure.
Getter functions can be declared view or pure.
View function declares that no state will be changed.
Pure function declares that no state variable will be changed or read.
// SPDX-License-Identifier: MIT
@@ -10621,7 +10783,7 @@ echidna-test EchidnaTestTimeAndCaller.sol --contract EchidnaTestTimeAndCaller
return i + j;
}
}
-Functions and state variables have to declare whether they are accessible by other contracts.
+`,Z2=({prev:s,next:a})=>i.jsx(u,{version:y2,title:m2,description:b2,html:k2,prev:s,next:a,codes:w2}),W2="0.8.24",G2="Visibility",B2="An example of external, internal, private and public functions in Solidity",V2=[{fileName:"Visibility.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNDsKCmNvbnRyYWN0IEJhc2UgewogICAgLy8gUHJpdmF0ZSBmdW5jdGlvbiBjYW4gb25seSBiZSBjYWxsZWQKICAgIC8vIC0gaW5zaWRlIHRoaXMgY29udHJhY3QKICAgIC8vIENvbnRyYWN0cyB0aGF0IGluaGVyaXQgdGhpcyBjb250cmFjdCBjYW5ub3QgY2FsbCB0aGlzIGZ1bmN0aW9uLgogICAgZnVuY3Rpb24gcHJpdmF0ZUZ1bmMoKSBwcml2YXRlIHB1cmUgcmV0dXJucyAoc3RyaW5nIG1lbW9yeSkgewogICAgICAgIHJldHVybiAicHJpdmF0ZSBmdW5jdGlvbiBjYWxsZWQiOwogICAgfQoKICAgIGZ1bmN0aW9uIHRlc3RQcml2YXRlRnVuYygpIHB1YmxpYyBwdXJlIHJldHVybnMgKHN0cmluZyBtZW1vcnkpIHsKICAgICAgICByZXR1cm4gcHJpdmF0ZUZ1bmMoKTsKICAgIH0KCiAgICAvLyBJbnRlcm5hbCBmdW5jdGlvbiBjYW4gYmUgY2FsbGVkCiAgICAvLyAtIGluc2lkZSB0aGlzIGNvbnRyYWN0CiAgICAvLyAtIGluc2lkZSBjb250cmFjdHMgdGhhdCBpbmhlcml0IHRoaXMgY29udHJhY3QKICAgIGZ1bmN0aW9uIGludGVybmFsRnVuYygpIGludGVybmFsIHB1cmUgcmV0dXJucyAoc3RyaW5nIG1lbW9yeSkgewogICAgICAgIHJldHVybiAiaW50ZXJuYWwgZnVuY3Rpb24gY2FsbGVkIjsKICAgIH0KCiAgICBmdW5jdGlvbiB0ZXN0SW50ZXJuYWxGdW5jKCkgcHVibGljIHB1cmUgdmlydHVhbCByZXR1cm5zIChzdHJpbmcgbWVtb3J5KSB7CiAgICAgICAgcmV0dXJuIGludGVybmFsRnVuYygpOwogICAgfQoKICAgIC8vIFB1YmxpYyBmdW5jdGlvbnMgY2FuIGJlIGNhbGxlZAogICAgLy8gLSBpbnNpZGUgdGhpcyBjb250cmFjdAogICAgLy8gLSBpbnNpZGUgY29udHJhY3RzIHRoYXQgaW5oZXJpdCB0aGlzIGNvbnRyYWN0CiAgICAvLyAtIGJ5IG90aGVyIGNvbnRyYWN0cyBhbmQgYWNjb3VudHMKICAgIGZ1bmN0aW9uIHB1YmxpY0Z1bmMoKSBwdWJsaWMgcHVyZSByZXR1cm5zIChzdHJpbmcgbWVtb3J5KSB7CiAgICAgICAgcmV0dXJuICJwdWJsaWMgZnVuY3Rpb24gY2FsbGVkIjsKICAgIH0KCiAgICAvLyBFeHRlcm5hbCBmdW5jdGlvbnMgY2FuIG9ubHkgYmUgY2FsbGVkCiAgICAvLyAtIGJ5IG90aGVyIGNvbnRyYWN0cyBhbmQgYWNjb3VudHMKICAgIGZ1bmN0aW9uIGV4dGVybmFsRnVuYygpIGV4dGVybmFsIHB1cmUgcmV0dXJucyAoc3RyaW5nIG1lbW9yeSkgewogICAgICAgIHJldHVybiAiZXh0ZXJuYWwgZnVuY3Rpb24gY2FsbGVkIjsKICAgIH0KCiAgICAvLyBUaGlzIGZ1bmN0aW9uIHdpbGwgbm90IGNvbXBpbGUgc2luY2Ugd2UncmUgdHJ5aW5nIHRvIGNhbGwKICAgIC8vIGFuIGV4dGVybmFsIGZ1bmN0aW9uIGhlcmUuCiAgICAvLyBmdW5jdGlvbiB0ZXN0RXh0ZXJuYWxGdW5jKCkgcHVibGljIHB1cmUgcmV0dXJucyAoc3RyaW5nIG1lbW9yeSkgewogICAgLy8gICAgIHJldHVybiBleHRlcm5hbEZ1bmMoKTsKICAgIC8vIH0KCiAgICAvLyBTdGF0ZSB2YXJpYWJsZXMKICAgIHN0cmluZyBwcml2YXRlIHByaXZhdGVWYXIgPSAibXkgcHJpdmF0ZSB2YXJpYWJsZSI7CiAgICBzdHJpbmcgaW50ZXJuYWwgaW50ZXJuYWxWYXIgPSAibXkgaW50ZXJuYWwgdmFyaWFibGUiOwogICAgc3RyaW5nIHB1YmxpYyBwdWJsaWNWYXIgPSAibXkgcHVibGljIHZhcmlhYmxlIjsKICAgIC8vIFN0YXRlIHZhcmlhYmxlcyBjYW5ub3QgYmUgZXh0ZXJuYWwgc28gdGhpcyBjb2RlIHdvbid0IGNvbXBpbGUuCiAgICAvLyBzdHJpbmcgZXh0ZXJuYWwgZXh0ZXJuYWxWYXIgPSAibXkgZXh0ZXJuYWwgdmFyaWFibGUiOwp9Cgpjb250cmFjdCBDaGlsZCBpcyBCYXNlIHsKICAgIC8vIEluaGVyaXRlZCBjb250cmFjdHMgZG8gbm90IGhhdmUgYWNjZXNzIHRvIHByaXZhdGUgZnVuY3Rpb25zCiAgICAvLyBhbmQgc3RhdGUgdmFyaWFibGVzLgogICAgLy8gZnVuY3Rpb24gdGVzdFByaXZhdGVGdW5jKCkgcHVibGljIHB1cmUgcmV0dXJucyAoc3RyaW5nIG1lbW9yeSkgewogICAgLy8gICAgIHJldHVybiBwcml2YXRlRnVuYygpOwogICAgLy8gfQoKICAgIC8vIEludGVybmFsIGZ1bmN0aW9uIGNhbiBiZSBjYWxsZWQgaW5zaWRlIGNoaWxkIGNvbnRyYWN0cy4KICAgIGZ1bmN0aW9uIHRlc3RJbnRlcm5hbEZ1bmMoKSBwdWJsaWMgcHVyZSBvdmVycmlkZSByZXR1cm5zIChzdHJpbmcgbWVtb3J5KSB7CiAgICAgICAgcmV0dXJuIGludGVybmFsRnVuYygpOwogICAgfQp9Cg=="}],f2=`Functions and state variables have to declare whether they are accessible by other contracts.
Functions can be declared as
public - any contract and account can call