RainterpreterStoreNPE2

Git Source

Inherits: IInterpreterStoreV2, ERC165

Simplest possible IInterpreterStoreV2 that could work. Takes key/value pairings from the input array and stores each in an internal mapping. StateNamespace is fully qualified only by msg.sender on set and doesn't attempt to do any deduping etc. if the same key appears twice it will be set twice.

State Variables

sStore

Store is several tiers of sandbox. 0. Address hashed into FullyQualifiedNamespace is msg.sender so that callers cannot attack each other

1. StateNamespace is caller-provided namespace so that expressions cannot attack each other
2. uint256 is expression-provided key
3. uint256 is expression-provided value tiers 0 and 1 are both embodied in the FullyQualifiedNamespace.

mapping(FullyQualifiedNamespace fullyQualifiedNamespace => mapping(uint256 key => uint256 value)) internal sStore;

Functions

supportsInterface

See {IERC165-supportsInterface}.

function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool);

set

Mutates the interpreter store in bulk. The bulk values are provided in the form of a uint256[] which can be treated e.g. as pairwise keys and values to be stored in a Solidity mapping. The IInterpreterStoreV2 defines the meaning of the uint256[] for its own storage logic.

function set(StateNamespace namespace, uint256[] calldata kvs) external virtual;

Parameters

get

This would be picked up by an out of bounds index below, but it's nice to have a more specific error message.

function get(FullyQualifiedNamespace namespace, uint256 key) external view virtual returns (uint256);

Parameters

Returns