INIT_CODE_HASH ni nini na inahesabiwa / inatumikaje katika mikataba ya DeFi smart contracts

Init code hash kimsingi ni keccak256 hash ya bytecode ya mkataba. Matumizi ya Init Code

Init code hash inahitajika "Kwa kuwa hesabu ya anwani inategemea hashing ya init code. Init code ni msimbo ambao, unapotekelezwa, huzalisha runtime bytecode ambayo itawekwa kwenye hali, na ambayo kwa kawaida hutumiwa na lugha za kiwango cha juu kutekeleza 'constructor'." "EIP-1014: Skinny CREATE2," Mapendekezo ya Uboreshaji ya Ethereum, na. 1014, Aprili 2018. [Mtandao wa mfululizo]. Inapatikana: https://eips.ethereum.org/EIPS/eip-1014.

Matumizi ya Init Code Matumizi ya msingi ya init code ni kwa uchimbaji wa anwani. Unaweza kuangalia https://github.com/0age/create2crunch kwa mfano wa jinsi tunavyoweza kutumia CREATE2 na init code ya mkataba 'kuchimba' anwani zenye ufanisi zaidi kwa usambazaji wa mkataba. Hapa kuna script rahisi ya bash inayotumia forge kukuzalishia code init hash:

https://github.com/sambacha/foundry-scripts/tree/master/scripts/deploy

Script #!/usr/bin/env bash

exit_on_error() { echo "Error: $1" exit 1 }

usage() { echo "Usage: $0 <contract_path> <contract_name> [-v]" echo " <contract_path> : Path to the Solidity contract file" echo " <contract_name> : Name of the Solidity contract" echo " -v : Enable verbose output (optional)" exit 1 }

if ! command -v forge &> /dev/null; then exit_on_error "Foundry is not installed. Please install it first." fi

if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then usage fi

CONTRACT_PATH=$1 CONTRACT_NAME=$2 VERBOSE=false

if [ "$#" -eq 3 ] && [ "$3" == "-v" ]; then VERBOSE=true fi

if [ ! -f "$CONTRACT_PATH" ]; then exit_on_error "Contract path '$CONTRACT_PATH' does not exist or is not a file." fi

CONTRACT_DIR=$(dirname "$CONTRACT_PATH")

CONTRACT_FILE=$(basename "$CONTRACT_PATH")

cd "$CONTRACT_DIR" || exit_on_error "Failed to change directory to '$CONTRACT_DIR'."

echo "Compiling the contract..." if $VERBOSE; then forge build --contracts . || exit_on_error "Failed to compile the contract." else forge build --contracts . > /dev/null 2>&1 || exit_on_error "Failed to compile the contract." fi

echo "Generating init code..." INIT_CODE=$(forge inspect "$CONTRACT_NAME" bytecode) || exit_on_error "Failed to generate init code."

echo "Calculating init code hash..." INIT_CODE_HASH=$(echo -n "$INIT_CODE" | keccak-256sum | cut -d' ' -f1) || exit_on_error "Failed to calculate init code hash."# Hatua 4: Andika hash ya msimbo wa kuanzisha kwenye faili OUTPUT_FILE="${CONTRACT_NAME}_INIT_CODE_HASH.txt" echo "$INIT_CODE_HASH" > "$OUTPUT_FILE" || exit_on_error "Imeshindwa kuandika hash ya msimbo wa kuanzisha kwenye faili."

echo "Hash ya msimbo wa kuanzisha imeandikwa kwenye $OUTPUT_FILE" if $VERBOSE; then echo "Msimbo wa kuanzisha: $INIT_CODE" echo "Hash ya msimbo wa kuanzisha: $INIT_CODE_HASH" fi

cd - > /dev/null || exit