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benchmark
code-generation
transaction-code-generation
execution-grounded-evaluation
blockchain
evm
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edbc049 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | """
BNB Transfer to Contract Validator
Validates that a BNB transfer is sent to a valid contract address
"""
from typing import Dict, Any
class BNBTransferToContractValidator:
"""Validator for BNB transfers to smart contract addresses"""
def __init__(self, contract_address: str, amount: float):
"""
Initialize validator
Args:
contract_address: Expected contract address
amount: Expected transfer amount in BNB (float)
"""
from decimal import Decimal
self.expected_to = contract_address.lower()
# Use Decimal for precise BNB to wei conversion
self.expected_amount = int(Decimal(str(amount)) * Decimal(10**18))
self.max_score = 100
def validate(
self,
tx: Dict[str, Any],
receipt: Dict[str, Any],
state_before: Dict[str, Any],
state_after: Dict[str, Any]
) -> Dict[str, Any]:
"""
Validate the transaction execution results
Args:
tx: Transaction object
receipt: Transaction receipt
state_before: Blockchain state before transaction
state_after: Blockchain state after transaction
Returns:
Validation results including score and details
"""
score = 0
details = {}
checks = []
# Check 1: Transaction success (30 points)
tx_success = receipt.get('status') == 1
if tx_success:
score += 30
checks.append({
'name': 'Transaction Success',
'passed': True,
'points': 30,
'message': 'Transaction executed successfully'
})
else:
checks.append({
'name': 'Transaction Success',
'passed': False,
'points': 0,
'message': f"Transaction failed with status: {receipt.get('status')}"
})
return {
'score': score,
'max_score': self.max_score,
'passed': False,
'checks': checks,
'details': details
}
# Check 2: Recipient is a contract address (20 points)
actual_to = tx.get('to', '').lower()
to_correct = actual_to == self.expected_to
# Check if target is a contract (has code)
target_code_size = state_before.get('contract_code_size', 0)
is_contract = target_code_size > 0
if to_correct and is_contract:
score += 20
checks.append({
'name': 'Recipient is Contract',
'passed': True,
'points': 20,
'message': f'Correct contract address: {self.expected_to} (code size: {target_code_size} bytes)'
})
else:
# Failed: either wrong address or not a contract
if to_correct and not is_contract:
error_msg = f'Address correct but target is not a contract (code size: 0)'
else:
error_msg = f'Expected contract: {self.expected_to}, Got: {actual_to}'
checks.append({
'name': 'Recipient is Contract',
'passed': False,
'points': 0,
'message': error_msg
})
details['expected_to'] = self.expected_to
details['actual_to'] = actual_to
details['is_contract'] = is_contract
details['contract_code_size'] = target_code_size
# Check 3: Transfer amount (30 points)
actual_value = int(tx.get('value', 0))
amount_correct = actual_value == self.expected_amount
if amount_correct:
score += 30
checks.append({
'name': 'Transfer Amount',
'passed': True,
'points': 30,
'message': f'Correct amount: {self.expected_amount} wei'
})
else:
checks.append({
'name': 'Transfer Amount',
'passed': False,
'points': 0,
'message': f'Expected: {self.expected_amount} wei, Got: {actual_value} wei'
})
details['expected_amount'] = self.expected_amount
details['actual_amount'] = actual_value
# Check 4: Contract balance change (20 points)
contract_balance_before = state_before.get('target_balance', 0)
contract_balance_after = state_after.get('target_balance', 0)
expected_contract_balance = contract_balance_before + self.expected_amount
balance_diff = abs(contract_balance_after - expected_contract_balance)
# Allow 0.1% tolerance for rounding errors
tolerance = max(int(self.expected_amount * 0.001), 1)
balance_correct = balance_diff <= tolerance
if balance_correct:
score += 20
checks.append({
'name': 'Contract Balance Change',
'passed': True,
'points': 20,
'message': f'Contract balance increased by {self.expected_amount} wei'
})
else:
checks.append({
'name': 'Contract Balance Change',
'passed': False,
'points': 0,
'message': f'Expected increase: {self.expected_amount} wei, Actual: {contract_balance_after - contract_balance_before} wei'
})
details['contract_balance_before'] = contract_balance_before
details['contract_balance_after'] = contract_balance_after
details['contract_balance_change'] = contract_balance_after - contract_balance_before
# Final result
passed = score >= self.max_score * 0.8 # 80% threshold
return {
'score': score,
'max_score': self.max_score,
'passed': passed,
'checks': checks,
'details': details
}
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