Add paginated version of EnumerableSet.values() and EnumerableMap.keys() (#5713)
Co-authored-by: ernestognw <ernestognw@gmail.com>
This commit is contained in:
@ -165,7 +165,7 @@ function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns
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}
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/**
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* @dev Return the an array containing all the keys
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* @dev Returns an array containing all the keys
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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@ -175,6 +175,18 @@ function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns
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function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) {
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return map._keys.values();
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}
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/**
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* @dev Returns an array containing a slice of the keys
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function keys(Bytes32ToBytes32Map storage map, uint256 start, uint256 end) internal view returns (bytes32[] memory) {
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return map._keys.values(start, end);
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}
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`;
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const customMap = ({ name, key, value }) => `\
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@ -280,6 +292,25 @@ function keys(${name} storage map) internal view returns (${key.type}[] memory)
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return result;
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}
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/**
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* @dev Return the an array containing a slice of the keys
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function keys(${name} storage map, uint256 start, uint256 end) internal view returns (${key.type}[] memory) {
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bytes32[] memory store = keys(map._inner, start, end);
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${key.type}[] memory result;
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assembly ("memory-safe") {
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result := store
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}
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return result;
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}
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`;
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const memoryMap = ({ name, keySet, key, value }) => `\
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@ -390,7 +421,7 @@ function get(${name} storage map, ${key.typeLoc} key) internal view returns (${v
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}
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/**
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* @dev Return the an array containing all the keys
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* @dev Returns an array containing all the keys
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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@ -400,6 +431,18 @@ function get(${name} storage map, ${key.typeLoc} key) internal view returns (${v
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function keys(${name} storage map) internal view returns (${key.type}[] memory) {
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return map._keys.values();
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}
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/**
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* @dev Returns an array containing a slice of the keys
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function keys(${name} storage map, uint256 start, uint256 end) internal view returns (${key.type}[] memory) {
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return map._keys.values(start, end);
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}
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`;
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// GENERATE
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@ -6,6 +6,7 @@ const header = `\
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pragma solidity ^0.8.20;
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import {Arrays} from "../Arrays.sol";
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import {Math} from "../math/Math.sol";
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/**
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* @dev Library for managing
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@ -179,6 +180,28 @@ function _at(Set storage set, uint256 index) private view returns (bytes32) {
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function _values(Set storage set) private view returns (bytes32[] memory) {
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return set._values;
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}
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/**
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* @dev Return a slice of the set in an array
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function _values(Set storage set, uint256 start, uint256 end) private view returns (bytes32[] memory) {
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unchecked {
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end = Math.min(end, _length(set));
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start = Math.min(start, end);
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uint256 len = end - start;
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bytes32[] memory result = new bytes32[](len);
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for (uint256 i = 0; i < len; ++i) {
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result[i] = Arrays.unsafeAccess(set._values, start + i).value;
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}
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return result;
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}
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}
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`;
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// NOTE: this should be deprecated in favor of a more native construction in v6.0
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@ -265,6 +288,25 @@ function values(${name} storage set) internal view returns (${type}[] memory) {
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return result;
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}
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/**
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* @dev Return a slice of the set in an array
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function values(${name} storage set, uint256 start, uint256 end) internal view returns (${type}[] memory) {
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bytes32[] memory store = _values(set._inner, start, end);
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${type}[] memory result;
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assembly ("memory-safe") {
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result := store
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}
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return result;
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}
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`;
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const memorySet = ({ name, value }) => `\
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@ -387,6 +429,28 @@ function at(${name} storage self, uint256 index) internal view returns (${value.
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function values(${name} storage self) internal view returns (${value.type}[] memory) {
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return self._values;
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}
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/**
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* @dev Return a slice of the set in an array
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*
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* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
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* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
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* this function has an unbounded cost, and using it as part of a state-changing function may render the function
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* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
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*/
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function values(${name} storage set, uint256 start, uint256 end) internal view returns (${value.type}[] memory) {
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unchecked {
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end = Math.min(end, length(set));
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start = Math.min(start, end);
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uint256 len = end - start;
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${value.type}[] memory result = new ${value.type}[](len);
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for (uint256 i = 0; i < len; ++i) {
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result[i] = Arrays.unsafeAccess(set._values, start + i).value;
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}
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return result;
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}
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}
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`;
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// GENERATE
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