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77
arithmetization/src/main/java/net/consensys/linea/zktracer/module/legacy/hash/HashData.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * 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. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
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| package net.consensys.linea.zktracer.module.legacy.hash; | ||
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| import static net.consensys.linea.zktracer.module.Util.roundedUpDivision; | ||
|
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| import java.util.ArrayDeque; | ||
| import java.util.Deque; | ||
| import java.util.List; | ||
|
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| import lombok.RequiredArgsConstructor; | ||
| import net.consensys.linea.zktracer.ColumnHeader; | ||
| import net.consensys.linea.zktracer.module.Module; | ||
| import net.consensys.linea.zktracer.module.hub.Hub; | ||
| import net.consensys.linea.zktracer.opcode.OpCode; | ||
| import org.hyperledger.besu.evm.frame.MessageFrame; | ||
| import org.hyperledger.besu.evm.internal.Words; | ||
|
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| @RequiredArgsConstructor | ||
| public class HashData implements Module { | ||
| private final Hub hub; | ||
| private final Deque<Integer> state = new ArrayDeque<>(); | ||
|
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| @Override | ||
| public String moduleKey() { | ||
| return "PUB_HASH"; | ||
| } | ||
|
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| @Override | ||
| public void enterTransaction() { | ||
| this.state.push(0); | ||
| } | ||
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| @Override | ||
| public void popTransaction() { | ||
| this.state.pop(); | ||
| } | ||
|
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| @Override | ||
| public int lineCount() { | ||
| return this.state.stream().mapToInt(x -> x).sum(); | ||
| } | ||
|
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| @Override | ||
| public List<ColumnHeader> columnsHeaders() { | ||
| throw new IllegalStateException("should never be called"); | ||
| } | ||
|
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| private void add(int x) { | ||
| this.state.push(this.state.pop() + x); | ||
| } | ||
|
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| @Override | ||
| public void tracePreOpcode(MessageFrame frame) { | ||
| final OpCode opCode = hub.opCode(); | ||
| if (opCode == OpCode.CREATE2 || opCode == OpCode.SHA3) { | ||
| if (this.hub.pch().exceptions().none()) { | ||
| final long size = Words.clampedToLong(frame.getStackItem(1)); | ||
| final int limbCount = (int) roundedUpDivision(size, 16); | ||
| this.add(limbCount); | ||
| } | ||
| } | ||
| } | ||
| } |
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