state.contract.storage_slot.proto Maven / Gradle / Ivy
syntax = "proto3";
package proto;
/*-
*
* Hedera Network Services Protobuf
*
* Copyright (C) 2018 - 2023 Hedera Hashgraph, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
option java_package = "com.hederahashgraph.api.proto.java";
// <<>> This comment is special code for setting PBJ Compiler java package
option java_multiple_files = true;
import "basic_types.proto";
/**
* The key of a storage slot. A slot is scoped to a specific contract number.
*
* For each contract, its EVM storage is a mapping of 256-bit keys (or "words") to 256-bit values.
*/
message SlotKey {
/**
* The number of the contract whose storage this slot belongs to.
*/
ContractID contractID = 1;
/**
* The EVM key of this slot, when left-padded with zeros to form a 256-bit word.
*/
bytes key = 2;
}
/**
* The value of a contract storage slot. For the EVM, this is a single word.
*
* Because we iterate through all the storage slots for an expired contract
* when purging it from state, our slot values also include the words
* of the previous and next keys in this contract's storage "list".
*/
message SlotValue {
/**
* The EVM value in this slot, when left-padded with zeros to form a 256-bit word.
*/
bytes value = 1;
/**
* The word of the previous key in this contract's storage list (if any).
*/
bytes previous_key = 2;
/**
* The word of the next key in this contract's storage list (if any).
*/
bytes next_key = 3;
}