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Contract Name:
DiamondLoupe
Compiler Version
v0.8.28+commit.7893614a
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
import { IDiamondLoupe } from "contracts/interfaces/IDiamondLoupe.sol";
import { LibStorage as s } from "../libraries/LibStorage.sol";
import "../Storage.sol";
/// @title DiamondLoupe
/// @author Cooper Labs
/// @custom:contact [email protected]
/// @dev Reference: EIP-2535 Diamonds
/// @dev Forked from https://github.com/mudgen/diamond-3/blob/master/contracts/facets/DiamondLoupeFacet.sol by mudgen
contract DiamondLoupe is IDiamondLoupe {
/// @inheritdoc IDiamondLoupe
function facets() external view override returns (Facet[] memory facets_) {
DiamondStorage storage ds = s.diamondStorage();
uint256 selectorCount = ds.selectors.length;
facets_ = new Facet[](selectorCount);
uint16[] memory numFacetSelectors = new uint16[](selectorCount);
uint256 numFacets;
for (uint256 selectorIndex; selectorIndex < selectorCount; selectorIndex++) {
bytes4 selector = ds.selectors[selectorIndex];
address facetAddress_ = ds.selectorInfo[selector].facetAddress;
bool continueLoop = false;
// Find the functionSelectors array for selector and add selector to it
for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) {
if (facets_[facetIndex].facetAddress == facetAddress_) {
facets_[facetIndex].functionSelectors[numFacetSelectors[facetIndex]] = selector;
numFacetSelectors[facetIndex]++;
continueLoop = true;
break;
}
}
// If functionSelectors array exists for selector then continue loop
if (continueLoop) {
continueLoop = false;
continue;
}
// Create a new functionSelectors array for selector
facets_[numFacets].facetAddress = facetAddress_;
facets_[numFacets].functionSelectors = new bytes4[](selectorCount);
facets_[numFacets].functionSelectors[0] = selector;
numFacetSelectors[numFacets] = 1;
numFacets++;
}
for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) {
uint256 numSelectors = numFacetSelectors[facetIndex];
bytes4[] memory selectors = facets_[facetIndex].functionSelectors;
// Set the number of selectors
assembly ("memory-safe") {
mstore(selectors, numSelectors)
}
}
// Set the number of facets
assembly ("memory-safe") {
mstore(facets_, numFacets)
}
}
/// @inheritdoc IDiamondLoupe
function facetFunctionSelectors(address _facet)
external
view
override
returns (bytes4[] memory _facetFunctionSelectors)
{
DiamondStorage storage ds = s.diamondStorage();
uint256 selectorCount = ds.selectors.length;
uint256 numSelectors;
_facetFunctionSelectors = new bytes4[](selectorCount);
for (uint256 selectorIndex; selectorIndex < selectorCount; selectorIndex++) {
bytes4 selector = ds.selectors[selectorIndex];
address facetAddress_ = ds.selectorInfo[selector].facetAddress;
if (_facet == facetAddress_) {
_facetFunctionSelectors[numSelectors] = selector;
numSelectors++;
}
}
// Set the number of selectors in the array
assembly ("memory-safe") {
mstore(_facetFunctionSelectors, numSelectors)
}
}
/// @inheritdoc IDiamondLoupe
function facetAddresses() external view override returns (address[] memory facetAddresses_) {
DiamondStorage storage ds = s.diamondStorage();
uint256 selectorCount = ds.selectors.length;
// Create an array set to the maximum size possible
facetAddresses_ = new address[](selectorCount);
uint256 numFacets;
// Loop through function selectors
for (uint256 selectorIndex; selectorIndex < selectorCount; selectorIndex++) {
bytes4 selector = ds.selectors[selectorIndex];
address facetAddress_ = ds.selectorInfo[selector].facetAddress;
bool continueLoop = false;
// See if we have collected the address already and break out of loop if we have
for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) {
if (facetAddress_ == facetAddresses_[facetIndex]) {
continueLoop = true;
break;
}
}
// Continue loop if we already have the address
if (continueLoop) {
continueLoop = false;
continue;
}
// Include address
facetAddresses_[numFacets] = facetAddress_;
numFacets++;
}
// Set the number of facet addresses in the array
assembly ("memory-safe") {
mstore(facetAddresses_, numFacets)
}
}
/// @inheritdoc IDiamondLoupe
function facetAddress(bytes4 _functionSelector) external view override returns (address facetAddress_) {
DiamondStorage storage ds = s.diamondStorage();
facetAddress_ = ds.selectorInfo[_functionSelector].facetAddress;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/manager/IAccessManager.sol)
pragma solidity ^0.8.20;
import {Time} from "../../utils/types/Time.sol";
interface IAccessManager {
/**
* @dev A delayed operation was scheduled.
*/
event OperationScheduled(
bytes32 indexed operationId,
uint32 indexed nonce,
uint48 schedule,
address caller,
address target,
bytes data
);
/**
* @dev A scheduled operation was executed.
*/
event OperationExecuted(bytes32 indexed operationId, uint32 indexed nonce);
/**
* @dev A scheduled operation was canceled.
*/
event OperationCanceled(bytes32 indexed operationId, uint32 indexed nonce);
/**
* @dev Informational labelling for a roleId.
*/
event RoleLabel(uint64 indexed roleId, string label);
/**
* @dev Emitted when `account` is granted `roleId`.
*
* NOTE: The meaning of the `since` argument depends on the `newMember` argument.
* If the role is granted to a new member, the `since` argument indicates when the account becomes a member of the role,
* otherwise it indicates the execution delay for this account and roleId is updated.
*/
event RoleGranted(uint64 indexed roleId, address indexed account, uint32 delay, uint48 since, bool newMember);
/**
* @dev Emitted when `account` membership or `roleId` is revoked. Unlike granting, revoking is instantaneous.
*/
event RoleRevoked(uint64 indexed roleId, address indexed account);
/**
* @dev Role acting as admin over a given `roleId` is updated.
*/
event RoleAdminChanged(uint64 indexed roleId, uint64 indexed admin);
/**
* @dev Role acting as guardian over a given `roleId` is updated.
*/
event RoleGuardianChanged(uint64 indexed roleId, uint64 indexed guardian);
/**
* @dev Grant delay for a given `roleId` will be updated to `delay` when `since` is reached.
*/
event RoleGrantDelayChanged(uint64 indexed roleId, uint32 delay, uint48 since);
/**
* @dev Target mode is updated (true = closed, false = open).
*/
event TargetClosed(address indexed target, bool closed);
/**
* @dev Role required to invoke `selector` on `target` is updated to `roleId`.
*/
event TargetFunctionRoleUpdated(address indexed target, bytes4 selector, uint64 indexed roleId);
/**
* @dev Admin delay for a given `target` will be updated to `delay` when `since` is reached.
*/
event TargetAdminDelayUpdated(address indexed target, uint32 delay, uint48 since);
error AccessManagerAlreadyScheduled(bytes32 operationId);
error AccessManagerNotScheduled(bytes32 operationId);
error AccessManagerNotReady(bytes32 operationId);
error AccessManagerExpired(bytes32 operationId);
error AccessManagerLockedRole(uint64 roleId);
error AccessManagerBadConfirmation();
error AccessManagerUnauthorizedAccount(address msgsender, uint64 roleId);
error AccessManagerUnauthorizedCall(address caller, address target, bytes4 selector);
error AccessManagerUnauthorizedConsume(address target);
error AccessManagerUnauthorizedCancel(address msgsender, address caller, address target, bytes4 selector);
error AccessManagerInvalidInitialAdmin(address initialAdmin);
/**
* @dev Check if an address (`caller`) is authorised to call a given function on a given contract directly (with
* no restriction). Additionally, it returns the delay needed to perform the call indirectly through the {schedule}
* & {execute} workflow.
*
* This function is usually called by the targeted contract to control immediate execution of restricted functions.
* Therefore we only return true if the call can be performed without any delay. If the call is subject to a
* previously set delay (not zero), then the function should return false and the caller should schedule the operation
* for future execution.
*
* If `immediate` is true, the delay can be disregarded and the operation can be immediately executed, otherwise
* the operation can be executed if and only if delay is greater than 0.
*
* NOTE: The IAuthority interface does not include the `uint32` delay. This is an extension of that interface that
* is backward compatible. Some contracts may thus ignore the second return argument. In that case they will fail
* to identify the indirect workflow, and will consider calls that require a delay to be forbidden.
*
* NOTE: This function does not report the permissions of the admin functions in the manager itself. These are defined by the
* {AccessManager} documentation.
*/
function canCall(
address caller,
address target,
bytes4 selector
) external view returns (bool allowed, uint32 delay);
/**
* @dev Expiration delay for scheduled proposals. Defaults to 1 week.
*
* IMPORTANT: Avoid overriding the expiration with 0. Otherwise every contract proposal will be expired immediately,
* disabling any scheduling usage.
*/
function expiration() external view returns (uint32);
/**
* @dev Minimum setback for all delay updates, with the exception of execution delays. It
* can be increased without setback (and reset via {revokeRole} in the case event of an
* accidental increase). Defaults to 5 days.
*/
function minSetback() external view returns (uint32);
/**
* @dev Get whether the contract is closed disabling any access. Otherwise role permissions are applied.
*
* NOTE: When the manager itself is closed, admin functions are still accessible to avoid locking the contract.
*/
function isTargetClosed(address target) external view returns (bool);
/**
* @dev Get the role required to call a function.
*/
function getTargetFunctionRole(address target, bytes4 selector) external view returns (uint64);
/**
* @dev Get the admin delay for a target contract. Changes to contract configuration are subject to this delay.
*/
function getTargetAdminDelay(address target) external view returns (uint32);
/**
* @dev Get the id of the role that acts as an admin for the given role.
*
* The admin permission is required to grant the role, revoke the role and update the execution delay to execute
* an operation that is restricted to this role.
*/
function getRoleAdmin(uint64 roleId) external view returns (uint64);
/**
* @dev Get the role that acts as a guardian for a given role.
*
* The guardian permission allows canceling operations that have been scheduled under the role.
*/
function getRoleGuardian(uint64 roleId) external view returns (uint64);
/**
* @dev Get the role current grant delay.
*
* Its value may change at any point without an event emitted following a call to {setGrantDelay}.
* Changes to this value, including effect timepoint are notified in advance by the {RoleGrantDelayChanged} event.
*/
function getRoleGrantDelay(uint64 roleId) external view returns (uint32);
/**
* @dev Get the access details for a given account for a given role. These details include the timepoint at which
* membership becomes active, and the delay applied to all operation by this user that requires this permission
* level.
*
* Returns:
* [0] Timestamp at which the account membership becomes valid. 0 means role is not granted.
* [1] Current execution delay for the account.
* [2] Pending execution delay for the account.
* [3] Timestamp at which the pending execution delay will become active. 0 means no delay update is scheduled.
*/
function getAccess(
uint64 roleId,
address account
) external view returns (uint48 since, uint32 currentDelay, uint32 pendingDelay, uint48 effect);
/**
* @dev Check if a given account currently has the permission level corresponding to a given role. Note that this
* permission might be associated with an execution delay. {getAccess} can provide more details.
*/
function hasRole(uint64 roleId, address account) external view returns (bool isMember, uint32 executionDelay);
/**
* @dev Give a label to a role, for improved role discoverability by UIs.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {RoleLabel} event.
*/
function labelRole(uint64 roleId, string calldata label) external;
/**
* @dev Add `account` to `roleId`, or change its execution delay.
*
* This gives the account the authorization to call any function that is restricted to this role. An optional
* execution delay (in seconds) can be set. If that delay is non 0, the user is required to schedule any operation
* that is restricted to members of this role. The user will only be able to execute the operation after the delay has
* passed, before it has expired. During this period, admin and guardians can cancel the operation (see {cancel}).
*
* If the account has already been granted this role, the execution delay will be updated. This update is not
* immediate and follows the delay rules. For example, if a user currently has a delay of 3 hours, and this is
* called to reduce that delay to 1 hour, the new delay will take some time to take effect, enforcing that any
* operation executed in the 3 hours that follows this update was indeed scheduled before this update.
*
* Requirements:
*
* - the caller must be an admin for the role (see {getRoleAdmin})
* - granted role must not be the `PUBLIC_ROLE`
*
* Emits a {RoleGranted} event.
*/
function grantRole(uint64 roleId, address account, uint32 executionDelay) external;
/**
* @dev Remove an account from a role, with immediate effect. If the account does not have the role, this call has
* no effect.
*
* Requirements:
*
* - the caller must be an admin for the role (see {getRoleAdmin})
* - revoked role must not be the `PUBLIC_ROLE`
*
* Emits a {RoleRevoked} event if the account had the role.
*/
function revokeRole(uint64 roleId, address account) external;
/**
* @dev Renounce role permissions for the calling account with immediate effect. If the sender is not in
* the role this call has no effect.
*
* Requirements:
*
* - the caller must be `callerConfirmation`.
*
* Emits a {RoleRevoked} event if the account had the role.
*/
function renounceRole(uint64 roleId, address callerConfirmation) external;
/**
* @dev Change admin role for a given role.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {RoleAdminChanged} event
*/
function setRoleAdmin(uint64 roleId, uint64 admin) external;
/**
* @dev Change guardian role for a given role.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {RoleGuardianChanged} event
*/
function setRoleGuardian(uint64 roleId, uint64 guardian) external;
/**
* @dev Update the delay for granting a `roleId`.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {RoleGrantDelayChanged} event.
*/
function setGrantDelay(uint64 roleId, uint32 newDelay) external;
/**
* @dev Set the role required to call functions identified by the `selectors` in the `target` contract.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {TargetFunctionRoleUpdated} event per selector.
*/
function setTargetFunctionRole(address target, bytes4[] calldata selectors, uint64 roleId) external;
/**
* @dev Set the delay for changing the configuration of a given target contract.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {TargetAdminDelayUpdated} event.
*/
function setTargetAdminDelay(address target, uint32 newDelay) external;
/**
* @dev Set the closed flag for a contract.
*
* Closing the manager itself won't disable access to admin methods to avoid locking the contract.
*
* Requirements:
*
* - the caller must be a global admin
*
* Emits a {TargetClosed} event.
*/
function setTargetClosed(address target, bool closed) external;
/**
* @dev Return the timepoint at which a scheduled operation will be ready for execution. This returns 0 if the
* operation is not yet scheduled, has expired, was executed, or was canceled.
*/
function getSchedule(bytes32 id) external view returns (uint48);
/**
* @dev Return the nonce for the latest scheduled operation with a given id. Returns 0 if the operation has never
* been scheduled.
*/
function getNonce(bytes32 id) external view returns (uint32);
/**
* @dev Schedule a delayed operation for future execution, and return the operation identifier. It is possible to
* choose the timestamp at which the operation becomes executable as long as it satisfies the execution delays
* required for the caller. The special value zero will automatically set the earliest possible time.
*
* Returns the `operationId` that was scheduled. Since this value is a hash of the parameters, it can reoccur when
* the same parameters are used; if this is relevant, the returned `nonce` can be used to uniquely identify this
* scheduled operation from other occurrences of the same `operationId` in invocations of {execute} and {cancel}.
*
* Emits a {OperationScheduled} event.
*
* NOTE: It is not possible to concurrently schedule more than one operation with the same `target` and `data`. If
* this is necessary, a random byte can be appended to `data` to act as a salt that will be ignored by the target
* contract if it is using standard Solidity ABI encoding.
*/
function schedule(
address target,
bytes calldata data,
uint48 when
) external returns (bytes32 operationId, uint32 nonce);
/**
* @dev Execute a function that is delay restricted, provided it was properly scheduled beforehand, or the
* execution delay is 0.
*
* Returns the nonce that identifies the previously scheduled operation that is executed, or 0 if the
* operation wasn't previously scheduled (if the caller doesn't have an execution delay).
*
* Emits an {OperationExecuted} event only if the call was scheduled and delayed.
*/
function execute(address target, bytes calldata data) external payable returns (uint32);
/**
* @dev Cancel a scheduled (delayed) operation. Returns the nonce that identifies the previously scheduled
* operation that is cancelled.
*
* Requirements:
*
* - the caller must be the proposer, a guardian of the targeted function, or a global admin
*
* Emits a {OperationCanceled} event.
*/
function cancel(address caller, address target, bytes calldata data) external returns (uint32);
/**
* @dev Consume a scheduled operation targeting the caller. If such an operation exists, mark it as consumed
* (emit an {OperationExecuted} event and clean the state). Otherwise, throw an error.
*
* This is useful for contract that want to enforce that calls targeting them were scheduled on the manager,
* with all the verifications that it implies.
*
* Emit a {OperationExecuted} event.
*/
function consumeScheduledOp(address caller, bytes calldata data) external;
/**
* @dev Hashing function for delayed operations.
*/
function hashOperation(address caller, address target, bytes calldata data) external view returns (bytes32);
/**
* @dev Changes the authority of a target managed by this manager instance.
*
* Requirements:
*
* - the caller must be a global admin
*/
function updateAuthority(address target, address newAuthority) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 value) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol)
pragma solidity ^0.8.20;
/**
* @dev Helper library for emitting standardized panic codes.
*
* ```solidity
* contract Example {
* using Panic for uint256;
*
* // Use any of the declared internal constants
* function foo() { Panic.GENERIC.panic(); }
*
* // Alternatively
* function foo() { Panic.panic(Panic.GENERIC); }
* }
* ```
*
* Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil].
*
* _Available since v5.1._
*/
// slither-disable-next-line unused-state
library Panic {
/// @dev generic / unspecified error
uint256 internal constant GENERIC = 0x00;
/// @dev used by the assert() builtin
uint256 internal constant ASSERT = 0x01;
/// @dev arithmetic underflow or overflow
uint256 internal constant UNDER_OVERFLOW = 0x11;
/// @dev division or modulo by zero
uint256 internal constant DIVISION_BY_ZERO = 0x12;
/// @dev enum conversion error
uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;
/// @dev invalid encoding in storage
uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;
/// @dev empty array pop
uint256 internal constant EMPTY_ARRAY_POP = 0x31;
/// @dev array out of bounds access
uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;
/// @dev resource error (too large allocation or too large array)
uint256 internal constant RESOURCE_ERROR = 0x41;
/// @dev calling invalid internal function
uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;
/// @dev Reverts with a panic code. Recommended to use with
/// the internal constants with predefined codes.
function panic(uint256 code) internal pure {
assembly ("memory-safe") {
mstore(0x00, 0x4e487b71)
mstore(0x20, code)
revert(0x1c, 0x24)
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
import {Panic} from "../Panic.sol";
import {SafeCast} from "./SafeCast.sol";
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an success flag (no overflow).
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow).
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow).
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a success flag (no division by zero).
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
*
* IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
* However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
* one branch when needed, making this function more expensive.
*/
function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) {
unchecked {
// branchless ternary works because:
// b ^ (a ^ b) == a
// b ^ 0 == b
return b ^ ((a ^ b) * SafeCast.toUint(condition));
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(a > b, a, b);
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(a < b, a, b);
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
Panic.panic(Panic.DIVISION_BY_ZERO);
}
// The following calculation ensures accurate ceiling division without overflow.
// Since a is non-zero, (a - 1) / b will not overflow.
// The largest possible result occurs when (a - 1) / b is type(uint256).max,
// but the largest value we can obtain is type(uint256).max - 1, which happens
// when a = type(uint256).max and b = 1.
unchecked {
return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);
}
}
/**
* @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
*
* Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use
// the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2²⁵⁶ + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0.
if (denominator <= prod1) {
Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW));
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such
// that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv ≡ 1 mod 2⁴.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2⁸
inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶
inverse *= 2 - denominator * inverse; // inverse mod 2³²
inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴
inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸
inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is
// less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @dev Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0);
}
/**
* @dev Calculate the modular multiplicative inverse of a number in Z/nZ.
*
* If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0.
* If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible.
*
* If the input value is not inversible, 0 is returned.
*
* NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the
* inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}.
*/
function invMod(uint256 a, uint256 n) internal pure returns (uint256) {
unchecked {
if (n == 0) return 0;
// The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version)
// Used to compute integers x and y such that: ax + ny = gcd(a, n).
// When the gcd is 1, then the inverse of a modulo n exists and it's x.
// ax + ny = 1
// ax = 1 + (-y)n
// ax ≡ 1 (mod n) # x is the inverse of a modulo n
// If the remainder is 0 the gcd is n right away.
uint256 remainder = a % n;
uint256 gcd = n;
// Therefore the initial coefficients are:
// ax + ny = gcd(a, n) = n
// 0a + 1n = n
int256 x = 0;
int256 y = 1;
while (remainder != 0) {
uint256 quotient = gcd / remainder;
(gcd, remainder) = (
// The old remainder is the next gcd to try.
remainder,
// Compute the next remainder.
// Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd
// where gcd is at most n (capped to type(uint256).max)
gcd - remainder * quotient
);
(x, y) = (
// Increment the coefficient of a.
y,
// Decrement the coefficient of n.
// Can overflow, but the result is casted to uint256 so that the
// next value of y is "wrapped around" to a value between 0 and n - 1.
x - y * int256(quotient)
);
}
if (gcd != 1) return 0; // No inverse exists.
return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative.
}
}
/**
* @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`.
*
* From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is
* prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that
* `a**(p-2)` is the modular multiplicative inverse of a in Fp.
*
* NOTE: this function does NOT check that `p` is a prime greater than `2`.
*/
function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {
unchecked {
return Math.modExp(a, p - 2, p);
}
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m)
*
* Requirements:
* - modulus can't be zero
* - underlying staticcall to precompile must succeed
*
* IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make
* sure the chain you're using it on supports the precompiled contract for modular exponentiation
* at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise,
* the underlying function will succeed given the lack of a revert, but the result may be incorrectly
* interpreted as 0.
*/
function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) {
(bool success, uint256 result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m).
* It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying
* to operate modulo 0 or if the underlying precompile reverted.
*
* IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain
* you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in
* https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack
* of a revert, but the result may be incorrectly interpreted as 0.
*/
function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) {
if (m == 0) return (false, 0);
assembly ("memory-safe") {
let ptr := mload(0x40)
// | Offset | Content | Content (Hex) |
// |-----------|------------|--------------------------------------------------------------------|
// | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x60:0x7f | value of b | 0x<.............................................................b> |
// | 0x80:0x9f | value of e | 0x<.............................................................e> |
// | 0xa0:0xbf | value of m | 0x<.............................................................m> |
mstore(ptr, 0x20)
mstore(add(ptr, 0x20), 0x20)
mstore(add(ptr, 0x40), 0x20)
mstore(add(ptr, 0x60), b)
mstore(add(ptr, 0x80), e)
mstore(add(ptr, 0xa0), m)
// Given the result < m, it's guaranteed to fit in 32 bytes,
// so we can use the memory scratch space located at offset 0.
success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)
result := mload(0x00)
}
}
/**
* @dev Variant of {modExp} that supports inputs of arbitrary length.
*/
function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) {
(bool success, bytes memory result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Variant of {tryModExp} that supports inputs of arbitrary length.
*/
function tryModExp(
bytes memory b,
bytes memory e,
bytes memory m
) internal view returns (bool success, bytes memory result) {
if (_zeroBytes(m)) return (false, new bytes(0));
uint256 mLen = m.length;
// Encode call args in result and move the free memory pointer
result = abi.encodePacked(b.length, e.length, mLen, b, e, m);
assembly ("memory-safe") {
let dataPtr := add(result, 0x20)
// Write result on top of args to avoid allocating extra memory.
success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen)
// Overwrite the length.
// result.length > returndatasize() is guaranteed because returndatasize() == m.length
mstore(result, mLen)
// Set the memory pointer after the returned data.
mstore(0x40, add(dataPtr, mLen))
}
}
/**
* @dev Returns whether the provided byte array is zero.
*/
function _zeroBytes(bytes memory byteArray) private pure returns (bool) {
for (uint256 i = 0; i < byteArray.length; ++i) {
if (byteArray[i] != 0) {
return false;
}
}
return true;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* This method is based on Newton's method for computing square roots; the algorithm is restricted to only
* using integer operations.
*/
function sqrt(uint256 a) internal pure returns (uint256) {
unchecked {
// Take care of easy edge cases when a == 0 or a == 1
if (a <= 1) {
return a;
}
// In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a
// sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between
// the current value as `ε_n = | x_n - sqrt(a) |`.
//
// For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root
// of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is
// bigger than any uint256.
//
// By noticing that
// `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)`
// we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar
// to the msb function.
uint256 aa = a;
uint256 xn = 1;
if (aa >= (1 << 128)) {
aa >>= 128;
xn <<= 64;
}
if (aa >= (1 << 64)) {
aa >>= 64;
xn <<= 32;
}
if (aa >= (1 << 32)) {
aa >>= 32;
xn <<= 16;
}
if (aa >= (1 << 16)) {
aa >>= 16;
xn <<= 8;
}
if (aa >= (1 << 8)) {
aa >>= 8;
xn <<= 4;
}
if (aa >= (1 << 4)) {
aa >>= 4;
xn <<= 2;
}
if (aa >= (1 << 2)) {
xn <<= 1;
}
// We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1).
//
// We can refine our estimation by noticing that the middle of that interval minimizes the error.
// If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2).
// This is going to be our x_0 (and ε_0)
xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2)
// From here, Newton's method give us:
// x_{n+1} = (x_n + a / x_n) / 2
//
// One should note that:
// x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a
// = ((x_n² + a) / (2 * x_n))² - a
// = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a
// = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²)
// = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²)
// = (x_n² - a)² / (2 * x_n)²
// = ((x_n² - a) / (2 * x_n))²
// ≥ 0
// Which proves that for all n ≥ 1, sqrt(a) ≤ x_n
//
// This gives us the proof of quadratic convergence of the sequence:
// ε_{n+1} = | x_{n+1} - sqrt(a) |
// = | (x_n + a / x_n) / 2 - sqrt(a) |
// = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) |
// = | (x_n - sqrt(a))² / (2 * x_n) |
// = | ε_n² / (2 * x_n) |
// = ε_n² / | (2 * x_n) |
//
// For the first iteration, we have a special case where x_0 is known:
// ε_1 = ε_0² / | (2 * x_0) |
// ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2)))
// ≤ 2**(2*e-4) / (3 * 2**(e-1))
// ≤ 2**(e-3) / 3
// ≤ 2**(e-3-log2(3))
// ≤ 2**(e-4.5)
//
// For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n:
// ε_{n+1} = ε_n² / | (2 * x_n) |
// ≤ (2**(e-k))² / (2 * 2**(e-1))
// ≤ 2**(2*e-2*k) / 2**e
// ≤ 2**(e-2*k)
xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above
xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5
xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9
xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18
xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36
xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72
// Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision
// ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either
// sqrt(a) or sqrt(a) + 1.
return xn - SafeCast.toUint(xn > a / xn);
}
}
/**
* @dev Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
uint256 exp;
unchecked {
exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);
value >>= exp;
result += exp;
exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);
value >>= exp;
result += exp;
exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);
value >>= exp;
result += exp;
exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);
value >>= exp;
result += exp;
exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);
value >>= exp;
result += exp;
exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);
value >>= exp;
result += exp;
exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);
value >>= exp;
result += exp;
result += SafeCast.toUint(value > 1);
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
uint256 isGt;
unchecked {
isGt = SafeCast.toUint(value > (1 << 128) - 1);
value >>= isGt * 128;
result += isGt * 16;
isGt = SafeCast.toUint(value > (1 << 64) - 1);
value >>= isGt * 64;
result += isGt * 8;
isGt = SafeCast.toUint(value > (1 << 32) - 1);
value >>= isGt * 32;
result += isGt * 4;
isGt = SafeCast.toUint(value > (1 << 16) - 1);
value >>= isGt * 16;
result += isGt * 2;
result += SafeCast.toUint(value > (1 << 8) - 1);
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.20;
/**
* @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeCast {
/**
* @dev Value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);
/**
* @dev An int value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedIntToUint(int256 value);
/**
* @dev Value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);
/**
* @dev An uint value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedUintToInt(uint256 value);
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toUint248(uint256 value) internal pure returns (uint248) {
if (value > type(uint248).max) {
revert SafeCastOverflowedUintDowncast(248, value);
}
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toUint240(uint256 value) internal pure returns (uint240) {
if (value > type(uint240).max) {
revert SafeCastOverflowedUintDowncast(240, value);
}
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toUint232(uint256 value) internal pure returns (uint232) {
if (value > type(uint232).max) {
revert SafeCastOverflowedUintDowncast(232, value);
}
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toUint224(uint256 value) internal pure returns (uint224) {
if (value > type(uint224).max) {
revert SafeCastOverflowedUintDowncast(224, value);
}
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toUint216(uint256 value) internal pure returns (uint216) {
if (value > type(uint216).max) {
revert SafeCastOverflowedUintDowncast(216, value);
}
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toUint208(uint256 value) internal pure returns (uint208) {
if (value > type(uint208).max) {
revert SafeCastOverflowedUintDowncast(208, value);
}
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toUint200(uint256 value) internal pure returns (uint200) {
if (value > type(uint200).max) {
revert SafeCastOverflowedUintDowncast(200, value);
}
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toUint192(uint256 value) internal pure returns (uint192) {
if (value > type(uint192).max) {
revert SafeCastOverflowedUintDowncast(192, value);
}
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toUint184(uint256 value) internal pure returns (uint184) {
if (value > type(uint184).max) {
revert SafeCastOverflowedUintDowncast(184, value);
}
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toUint176(uint256 value) internal pure returns (uint176) {
if (value > type(uint176).max) {
revert SafeCastOverflowedUintDowncast(176, value);
}
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toUint168(uint256 value) internal pure returns (uint168) {
if (value > type(uint168).max) {
revert SafeCastOverflowedUintDowncast(168, value);
}
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toUint160(uint256 value) internal pure returns (uint160) {
if (value > type(uint160).max) {
revert SafeCastOverflowedUintDowncast(160, value);
}
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toUint152(uint256 value) internal pure returns (uint152) {
if (value > type(uint152).max) {
revert SafeCastOverflowedUintDowncast(152, value);
}
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toUint144(uint256 value) internal pure returns (uint144) {
if (value > type(uint144).max) {
revert SafeCastOverflowedUintDowncast(144, value);
}
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toUint136(uint256 value) internal pure returns (uint136) {
if (value > type(uint136).max) {
revert SafeCastOverflowedUintDowncast(136, value);
}
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toUint128(uint256 value) internal pure returns (uint128) {
if (value > type(uint128).max) {
revert SafeCastOverflowedUintDowncast(128, value);
}
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toUint120(uint256 value) internal pure returns (uint120) {
if (value > type(uint120).max) {
revert SafeCastOverflowedUintDowncast(120, value);
}
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toUint112(uint256 value) internal pure returns (uint112) {
if (value > type(uint112).max) {
revert SafeCastOverflowedUintDowncast(112, value);
}
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toUint104(uint256 value) internal pure returns (uint104) {
if (value > type(uint104).max) {
revert SafeCastOverflowedUintDowncast(104, value);
}
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toUint96(uint256 value) internal pure returns (uint96) {
if (value > type(uint96).max) {
revert SafeCastOverflowedUintDowncast(96, value);
}
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toUint88(uint256 value) internal pure returns (uint88) {
if (value > type(uint88).max) {
revert SafeCastOverflowedUintDowncast(88, value);
}
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toUint80(uint256 value) internal pure returns (uint80) {
if (value > type(uint80).max) {
revert SafeCastOverflowedUintDowncast(80, value);
}
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toUint72(uint256 value) internal pure returns (uint72) {
if (value > type(uint72).max) {
revert SafeCastOverflowedUintDowncast(72, value);
}
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toUint64(uint256 value) internal pure returns (uint64) {
if (value > type(uint64).max) {
revert SafeCastOverflowedUintDowncast(64, value);
}
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toUint56(uint256 value) internal pure returns (uint56) {
if (value > type(uint56).max) {
revert SafeCastOverflowedUintDowncast(56, value);
}
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toUint48(uint256 value) internal pure returns (uint48) {
if (value > type(uint48).max) {
revert SafeCastOverflowedUintDowncast(48, value);
}
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toUint40(uint256 value) internal pure returns (uint40) {
if (value > type(uint40).max) {
revert SafeCastOverflowedUintDowncast(40, value);
}
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toUint32(uint256 value) internal pure returns (uint32) {
if (value > type(uint32).max) {
revert SafeCastOverflowedUintDowncast(32, value);
}
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toUint24(uint256 value) internal pure returns (uint24) {
if (value > type(uint24).max) {
revert SafeCastOverflowedUintDowncast(24, value);
}
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toUint16(uint256 value) internal pure returns (uint16) {
if (value > type(uint16).max) {
revert SafeCastOverflowedUintDowncast(16, value);
}
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toUint8(uint256 value) internal pure returns (uint8) {
if (value > type(uint8).max) {
revert SafeCastOverflowedUintDowncast(8, value);
}
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*/
function toUint256(int256 value) internal pure returns (uint256) {
if (value < 0) {
revert SafeCastOverflowedIntToUint(value);
}
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(248, value);
}
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(240, value);
}
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(232, value);
}
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(224, value);
}
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(216, value);
}
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(208, value);
}
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(200, value);
}
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(192, value);
}
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(184, value);
}
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(176, value);
}
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(168, value);
}
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(160, value);
}
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(152, value);
}
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(144, value);
}
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(136, value);
}
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(128, value);
}
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(120, value);
}
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(112, value);
}
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(104, value);
}
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(96, value);
}
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(88, value);
}
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(80, value);
}
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(72, value);
}
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(64, value);
}
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(56, value);
}
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(48, value);
}
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(40, value);
}
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(32, value);
}
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(24, value);
}
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(16, value);
}
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(8, value);
}
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
if (value > uint256(type(int256).max)) {
revert SafeCastOverflowedUintToInt(value);
}
return int256(value);
}
/**
* @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
*/
function toUint(bool b) internal pure returns (uint256 u) {
assembly ("memory-safe") {
u := iszero(iszero(b))
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/types/Time.sol)
pragma solidity ^0.8.20;
import {Math} from "../math/Math.sol";
import {SafeCast} from "../math/SafeCast.sol";
/**
* @dev This library provides helpers for manipulating time-related objects.
*
* It uses the following types:
* - `uint48` for timepoints
* - `uint32` for durations
*
* While the library doesn't provide specific types for timepoints and duration, it does provide:
* - a `Delay` type to represent duration that can be programmed to change value automatically at a given point
* - additional helper functions
*/
library Time {
using Time for *;
/**
* @dev Get the block timestamp as a Timepoint.
*/
function timestamp() internal view returns (uint48) {
return SafeCast.toUint48(block.timestamp);
}
/**
* @dev Get the block number as a Timepoint.
*/
function blockNumber() internal view returns (uint48) {
return SafeCast.toUint48(block.number);
}
// ==================================================== Delay =====================================================
/**
* @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the
* future. The "effect" timepoint describes when the transitions happens from the "old" value to the "new" value.
* This allows updating the delay applied to some operation while keeping some guarantees.
*
* In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for
* some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set
* the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should
* still apply for some time.
*
*
* The `Delay` type is 112 bits long, and packs the following:
*
* ```
* | [uint48]: effect date (timepoint)
* | | [uint32]: value before (duration)
* ↓ ↓ ↓ [uint32]: value after (duration)
* 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC
* ```
*
* NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently
* supported.
*/
type Delay is uint112;
/**
* @dev Wrap a duration into a Delay to add the one-step "update in the future" feature
*/
function toDelay(uint32 duration) internal pure returns (Delay) {
return Delay.wrap(duration);
}
/**
* @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled
* change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered.
*/
function _getFullAt(
Delay self,
uint48 timepoint
) private pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {
(valueBefore, valueAfter, effect) = self.unpack();
return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect);
}
/**
* @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the
* effect timepoint is 0, then the pending value should not be considered.
*/
function getFull(Delay self) internal view returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {
return _getFullAt(self, timestamp());
}
/**
* @dev Get the current value.
*/
function get(Delay self) internal view returns (uint32) {
(uint32 delay, , ) = self.getFull();
return delay;
}
/**
* @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to
* enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the
* new delay becomes effective.
*/
function withUpdate(
Delay self,
uint32 newValue,
uint32 minSetback
) internal view returns (Delay updatedDelay, uint48 effect) {
uint32 value = self.get();
uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0));
effect = timestamp() + setback;
return (pack(value, newValue, effect), effect);
}
/**
* @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint).
*/
function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {
uint112 raw = Delay.unwrap(self);
valueAfter = uint32(raw);
valueBefore = uint32(raw >> 32);
effect = uint48(raw >> 64);
return (valueBefore, valueAfter, effect);
}
/**
* @dev pack the components into a Delay object.
*/
function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) {
return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter));
}
}// SPDX-License-Identifier: MIT pragma solidity 0.8.28; import "../parallelizer/Storage.sol"; /// @notice IDiamondLoupe /// @author Cooper Labs /// @custom:contact [email protected] /// @dev Reference: EIP-2535 Diamonds /// @dev Forked from https://github.com/mudgen/diamond-3/blob/master/contracts/interfaces/IDiamondLoupe.sol by mudgen interface IDiamondLoupe { /// @notice Gets all facet addresses and their four byte function selectors. /// @return facets_ Facet function facets() external view returns (Facet[] memory facets_); /// @notice Gets all the function selectors supported by a specific facet. /// @param _facet The facet address. /// @return facetFunctionSelectors_ function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory facetFunctionSelectors_); /// @notice Get all the facet addresses used by a diamond. /// @return facetAddresses_ function facetAddresses() external view returns (address[] memory facetAddresses_); /// @notice Gets the facet that supports the given selector. /// @dev If facet is not found return address(0). /// @param _functionSelector The function selector. /// @return facetAddress_ The facet address. function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_); }
// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.28;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
/// @title ITokenP
/// @author Cooper Labs
/// @custom:contact [email protected]
/// @notice Interface for the stablecoins `tokenP` contracts
/// @dev This interface is an authorized fork of Angle's `IAgToken` interface
/// https://github.com/AngleProtocol/angle-transmuter/blob/main/contracts/interfaces/IAgToken.sol
interface ITokenP is IERC20 {
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
MINTER ROLE ONLY FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Lets a whitelisted contract mint tokenPs
/// @param account Address to mint to
/// @param amount Amount to mint
function mint(address account, uint256 amount) external;
/// @notice Burns `amount` tokens from a `burner` address after being asked to by `sender`
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @param sender Address which requested the burn from `burner`
/// @dev This method is to be called by a contract with the minter right after being requested
/// to do so by a `sender` address willing to burn tokens from another `burner` address
/// @dev The method checks the allowance between the `sender` and the `burner`
function burnFrom(uint256 amount, address burner, address sender) external;
/// @notice Burns `amount` tokens from a `burner` address
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @dev This method is to be called by a contract with a minter right on the tokenP after being
/// requested to do so by an address willing to burn tokens from its address
function burnSelf(uint256 amount, address burner) external;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
EXTERNAL FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Amount of decimals of the stablecoin
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;
/// @title ICbETH
/// @notice Interface for the `cbETH` contract
interface ICbETH {
function exchangeRate() external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;
/// @title ISfrxETH
/// @notice Interface for the `sfrxETH` contract
interface ISfrxETH {
function pricePerShare() external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;
/// @title IStETH
/// @notice Interface for the `StETH` contract
interface IStETH {
function getPooledEthByShares(uint256 _sharesAmount) external view returns (uint256);
function submit(address) external payable returns (uint256);
function getSharesByPooledEth(uint256 _ethAmount) external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;
/// @title IRETH
/// @notice Interface for the `rETH` contract
interface IRETH {
function getExchangeRate() external view returns (uint256);
}// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.28;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IAccessManager } from "@openzeppelin/contracts/access/manager/IAccessManager.sol";
import { ITokenP } from "contracts/interfaces/ITokenP.sol";
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
ENUMS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
enum FacetCutAction {
Add,
Replace,
Remove
}
enum ManagerType {
EXTERNAL
}
enum ActionType {
Mint,
Burn,
Redeem
}
enum TrustedType {
Updater,
Seller
}
enum QuoteType {
MintExactInput,
MintExactOutput,
BurnExactInput,
BurnExactOutput
}
enum OracleReadType {
CHAINLINK_FEEDS,
EXTERNAL,
NO_ORACLE,
STABLE,
WSTETH,
CBETH,
RETH,
SFRXETH,
MAX,
MORPHO_ORACLE
}
enum OracleQuoteType {
UNIT,
TARGET
}
enum WhitelistType {
BACKED
}
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
STRUCTS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
struct Permit2Details {
address to; // Address that will receive the funds
uint256 nonce; // Nonce of the transaction
bytes signature; // Permit signature of the user
}
struct FacetCut {
address facetAddress; // Facet contract address
FacetCutAction action; // Can be add, remove or replace
bytes4[] functionSelectors; // Ex. bytes4(keccak256("transfer(address,uint256)"))
}
struct Facet {
address facetAddress; // Facet contract address
bytes4[] functionSelectors; // Ex. bytes4(keccak256("transfer(address,uint256)"))
}
struct FacetInfo {
address facetAddress; // Facet contract address
uint16 selectorPosition; // Position in the list of all selectors
}
struct DiamondStorage {
bytes4[] selectors; // List of all available selectors
mapping(bytes4 => FacetInfo) selectorInfo; // Selector to (address, position in list)
IAccessManager accessManager; // Contract handling access management
}
struct ImplementationStorage {
address implementation; // Dummy implementation address for Etherscan usability
}
struct ManagerStorage {
IERC20[] subCollaterals; // Subtokens handled by the manager or strategies
bytes config; // Additional configuration data
}
struct Collateral {
uint8 isManaged; // If the collateral is managed through external strategies
uint8 isMintLive; // If minting from this asset is unpaused
uint8 isBurnLive; // If burning to this asset is unpaused
uint8 decimals; // IERC20Metadata(collateral).decimals()
uint8 onlyWhitelisted; // If only whitelisted addresses can burn or redeem for this token
uint216 normalizedStables; // Normalized amount of stablecoins issued from this collateral
uint64[] xFeeMint; // Increasing exposures in [0,BASE_9[
int64[] yFeeMint; // Mint fees at the exposures specified in `xFeeMint`
uint64[] xFeeBurn; // Decreasing exposures in ]0,BASE_9]
int64[] yFeeBurn; // Burn fees at the exposures specified in `xFeeBurn`
bytes oracleConfig; // Data about the oracle used for the collateral
bytes whitelistData; // For whitelisted collateral, data used to verify whitelists
ManagerStorage managerData; // For managed collateral, data used to handle the strategies
uint256 stablecoinCap; // Cap on the amount of stablecoins that can be issued from this collateral
}
struct ParallelizerStorage {
ITokenP tokenP; // tokenP handled by the system
uint8 isRedemptionLive; // If redemption is unpaused
uint8 statusReentrant; // If call is reentrant or not
bool consumingSchedule; // If the contract is consuming a scheduled operation
uint128 normalizedStables; // Normalized amount of stablecoins issued by the system
uint128 normalizer; // To reconcile `normalizedStables` values with the actual amount
address[] collateralList; // List of collateral assets supported by the system
uint64[] xRedemptionCurve; // Increasing collateral ratios > 0
int64[] yRedemptionCurve; // Value of the redemption fees at `xRedemptionCurve`
mapping(address => Collateral) collaterals; // Maps a collateral asset to its parameters
mapping(address => uint256) isTrusted; // If an address is trusted to update the normalizer value
mapping(address => uint256) isSellerTrusted; // If an address is trusted to sell accruing reward tokens or to run
// keeper jobs on oracles
mapping(WhitelistType => mapping(address => uint256)) isWhitelistedForType;
}
// Whether an address is whitelisted for a specific whitelist type// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.28;
import "../../utils/Constants.sol";
import { DiamondStorage, ImplementationStorage, ParallelizerStorage } from "../Storage.sol";
/// @title LibStorage
/// @author Cooper Labs
/// @custom:contact [email protected]
/// @dev This library is an authorized fork of Angle's `LibStorage` library
/// https://github.com/AngleProtocol/angle-transmuter/blob/main/contracts/parallelizer/libraries/LibStorage.sol
library LibStorage {
/// @notice Returns the storage struct stored at the `DIAMOND_STORAGE_POSITION` slot
/// @dev This struct handles the logic of the different facets used in the diamond proxy
function diamondStorage() internal pure returns (DiamondStorage storage ds) {
bytes32 position = DIAMOND_STORAGE_POSITION;
assembly ("memory-safe") {
ds.slot := position
}
}
/// @notice Returns the storage struct stored at the `TRANSMUTER_STORAGE_POSITION` slot
/// @dev This struct handles the particular logic of the Parallelizer system
function transmuterStorage() internal pure returns (ParallelizerStorage storage ts) {
bytes32 position = TRANSMUTER_STORAGE_POSITION;
assembly ("memory-safe") {
ts.slot := position
}
}
/// @notice Returns the storage struct stored at the `IMPLEMENTATION_STORAGE_POSITION` slot
/// @dev This struct handles the logic for making the contract easily usable on Etherscan
function implementationStorage() internal pure returns (ImplementationStorage storage ims) {
bytes32 position = IMPLEMENTATION_STORAGE_POSITION;
assembly ("memory-safe") {
ims.slot := position
}
}
}// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.28;
import { ICbETH } from "contracts/interfaces/external/coinbase/ICbETH.sol";
import { ISfrxETH } from "contracts/interfaces/external/frax/ISfrxETH.sol";
import { IStETH } from "contracts/interfaces/external/lido/IStETH.sol";
import { IRETH } from "contracts/interfaces/external/rocketPool/IRETH.sol";
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
STORAGE SLOTS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @dev Storage position of `DiamondStorage` structure
/// @dev Equals `keccak256("diamond.standard.diamond.storage") - 1`
bytes32 constant DIAMOND_STORAGE_POSITION = 0xc8fcad8db84d3cc18b4c41d551ea0ee66dd599cde068d998e57d5e09332c131b;
/// @dev Storage position of `ParallelizerStorage` structure
/// @dev Equals `keccak256("diamond.standard.parallelizer.storage") - 1`
bytes32 constant TRANSMUTER_STORAGE_POSITION = 0x4b2dd303f68b99d244b702089c802b6e9ea1b5d4ef61fd436d6c41abb1178c75;
/// @dev Storage position of `ImplementationStorage` structure
/// @dev Equals `keccak256("eip1967.proxy.implementation") - 1`
bytes32 constant IMPLEMENTATION_STORAGE_POSITION = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
MATHS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
uint256 constant BASE_6 = 1e6;
uint256 constant BASE_8 = 1e8;
uint256 constant BASE_9 = 1e9;
uint256 constant BASE_12 = 1e12;
uint256 constant BPS = 1e14;
uint256 constant BASE_18 = 1e18;
uint256 constant HALF_BASE_27 = 1e27 / 2;
uint256 constant BASE_27 = 1e27;
uint256 constant BASE_36 = 1e36;
uint256 constant MAX_BURN_FEE = 999_000_000;
uint256 constant MAX_MINT_FEE = BASE_12 - 1;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
REENTRANT
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint8 constant NOT_ENTERED = 1;
uint8 constant ENTERED = 2;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
REENTRANT
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
// Role IDs for the AccessManager
uint64 constant GOVERNOR_ROLE = 10;
uint64 constant GUARDIAN_ROLE = 20;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
COMMON ADDRESSES
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
address constant PERMIT_2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;
address constant ODOS_ROUTER = 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D;
ICbETH constant CBETH = ICbETH(0xBe9895146f7AF43049ca1c1AE358B0541Ea49704);
IRETH constant RETH = IRETH(0xae78736Cd615f374D3085123A210448E74Fc6393);
IStETH constant STETH = IStETH(0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84);
ISfrxETH constant SFRXETH = ISfrxETH(0xac3E018457B222d93114458476f3E3416Abbe38F);
address constant XEVT = 0x3Ee320c9F73a84D1717557af00695A34b26d1F1d;
address constant USDM = 0x59D9356E565Ab3A36dD77763Fc0d87fEaf85508C;
address constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
address constant EURC = 0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c;{
"evmVersion": "cancun",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs",
"useLiteralContent": true
},
"optimizer": {
"enabled": true,
"runs": 1000
},
"remappings": [],
"viaIR": true,
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"bytes4","name":"_functionSelector","type":"bytes4"}],"name":"facetAddress","outputs":[{"internalType":"address","name":"facetAddress_","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"facetAddresses","outputs":[{"internalType":"address[]","name":"facetAddresses_","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_facet","type":"address"}],"name":"facetFunctionSelectors","outputs":[{"internalType":"bytes4[]","name":"_facetFunctionSelectors","type":"bytes4[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"facets","outputs":[{"components":[{"internalType":"address","name":"facetAddress","type":"address"},{"internalType":"bytes4[]","name":"functionSelectors","type":"bytes4[]"}],"internalType":"struct Facet[]","name":"facets_","type":"tuple[]"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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Deployed Bytecode
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Net Worth in USD
$0.00
Net Worth in S
Multichain Portfolio | 35 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.