Datasets:
Tasks:
Text Generation
Modalities:
Text
Formats:
json
Languages:
English
Size:
< 1K
ArXiv:
Tags:
benchmark
code-generation
transaction-code-generation
execution-grounded-evaluation
blockchain
evm
License:
File size: 4,214 Bytes
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 | """
ERC20 Permit Validator (EIP-2612)
Validates that the permit function correctly sets token allowance using signature-based approval.
"""
from typing import Dict, Any
from decimal import Decimal
class ERC20PermitValidator:
"""Validator for EIP-2612 permit operations"""
def __init__(
self,
token_address: str,
owner_address: str,
spender_address: str,
value: float,
token_decimals: int = 18
):
self.token_address = token_address.lower()
self.owner_address = owner_address.lower()
self.spender_address = spender_address.lower()
# Use Decimal for precise calculation
self.expected_allowance = int(Decimal(str(value)) * Decimal(10 ** token_decimals))
self.token_decimals = token_decimals
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 EIP-2612 permit transaction
Args:
tx: Transaction object
receipt: Transaction receipt
state_before: State before transaction
state_after: State after transaction
Returns:
Validation result dictionary
Checks:
1. Transaction success (40%)
2. Allowance correctly set (60%)
"""
checks = []
score = 0
details = {
'token_address': self.token_address,
'owner_address': self.owner_address,
'spender_address': self.spender_address,
'expected_allowance': self.expected_allowance
}
# Check 1: Transaction success (40 points)
tx_success = receipt.get('status') == 1
if tx_success:
score += 40
checks.append({
'name': 'Transaction Success',
'passed': True,
'points': 40,
'message': 'Permit transaction executed successfully'
})
else:
checks.append({
'name': 'Transaction Success',
'passed': False,
'points': 0,
'message': f"Transaction failed with status: {receipt.get('status')}"
})
# Early return on transaction failure
return {
'score': score,
'max_score': self.max_score,
'passed': False,
'checks': checks,
'details': details
}
# Check 2: Allowance correctly set (60 points)
# Get allowance from state_after (should be queried by executor)
actual_allowance = state_after.get('allowance', 0)
details['allowance_before'] = state_before.get('allowance', 0)
details['allowance_after'] = actual_allowance
if actual_allowance == self.expected_allowance:
score += 60
checks.append({
'name': 'Allowance Set Correctly',
'passed': True,
'points': 60,
'message': f'Allowance correctly set to {self.expected_allowance} units',
'details': {
'expected': self.expected_allowance,
'actual': actual_allowance
}
})
else:
checks.append({
'name': 'Allowance Set Correctly',
'passed': False,
'points': 0,
'message': f'Allowance mismatch. Expected: {self.expected_allowance}, Got: {actual_allowance}',
'details': {
'expected': self.expected_allowance,
'actual': actual_allowance
}
})
# Determine overall pass/fail
all_passed = all(check['passed'] for check in checks)
return {
'score': score,
'max_score': self.max_score,
'passed': all_passed,
'checks': checks,
'details': details
}
|