EVM¶

Calls¶

call¶

Issue an EVM call operation. This is similar to a message call transaction in Ethereum.

Attributes¶

Name	Type
source	`H160`
target	`H160`
input	`Vec<u8>`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'call', {
    'access_list': [
        (
            '[u8; 20]',
            ['scale_info::12'],
        ),
    ],
    'gas_limit': 'u64',
    'input': 'Bytes',
    'max_fee_per_gas': 'scale_info::187',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::187',
    ),
    'nonce': (None, 'scale_info::187'),
    'source': '[u8; 20]',
    'target': '[u8; 20]',
    'value': 'scale_info::187',
}
)

create¶

Issue an EVM create operation. This is similar to a contract creation transaction in Ethereum.

Attributes¶

Name	Type
source	`H160`
init	`Vec<u8>`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'create', {
    'access_list': [
        (
            '[u8; 20]',
            ['scale_info::12'],
        ),
    ],
    'gas_limit': 'u64',
    'init': 'Bytes',
    'max_fee_per_gas': 'scale_info::187',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::187',
    ),
    'nonce': (None, 'scale_info::187'),
    'source': '[u8; 20]',
    'value': 'scale_info::187',
}
)

create2¶

Issue an EVM create2 operation.

Attributes¶

Name	Type
source	`H160`
init	`Vec<u8>`
salt	`H256`
value	`U256`
gas_limit	`u64`
max_fee_per_gas	`U256`
max_priority_fee_per_gas	`Option<U256>`
nonce	`Option<U256>`
access_list	`Vec<(H160, Vec<H256>)>`

Python¶

call = substrate.compose_call(
    'EVM', 'create2', {
    'access_list': [
        (
            '[u8; 20]',
            ['scale_info::12'],
        ),
    ],
    'gas_limit': 'u64',
    'init': 'Bytes',
    'max_fee_per_gas': 'scale_info::187',
    'max_priority_fee_per_gas': (
        None,
        'scale_info::187',
    ),
    'nonce': (None, 'scale_info::187'),
    'salt': 'scale_info::12',
    'source': '[u8; 20]',
    'value': 'scale_info::187',
}
)

withdraw¶

Withdraw balance from EVM into currency/balances pallet.

Attributes¶

Name	Type
address	`H160`
value	`BalanceOf<T>`

Python¶

call = substrate.compose_call(
    'EVM', 'withdraw', {
    'address': '[u8; 20]',
    'value': 'u128',
}
)

Events¶

Created¶

A contract has been created at given address.

Attributes¶

Name	Type	Composition
address	`H160`	`[u8; 20]`

CreatedFailed¶

A contract was attempted to be created, but the execution failed.

Attributes¶

Name	Type	Composition
address	`H160`	`[u8; 20]`

Executed¶

A contract has been executed successfully with states applied.

Attributes¶

Name	Type	Composition
address	`H160`	`[u8; 20]`

ExecutedFailed¶

A contract has been executed with errors. States are reverted with only gas fees applied.

Attributes¶

Name	Type	Composition
address	`H160`	`[u8; 20]`

Log¶

Ethereum events from contracts.

Attributes¶

Name	Type	Composition
log	`Log`	`{'address': '[u8; 20]', 'topics': ['scale_info::12'], 'data': 'Bytes'}`

Storage functions¶

AccountCodes¶

Python¶

result = substrate.query(
    'EVM', 'AccountCodes', ['[u8; 20]']
)

Return value¶

'Bytes'

AccountCodesMetadata¶

Python¶

result = substrate.query(
    'EVM', 'AccountCodesMetadata', ['[u8; 20]']
)

Return value¶

{'hash': 'scale_info::12', 'size': 'u64'}

AccountStorages¶

Python¶

result = substrate.query(
    'EVM', 'AccountStorages', ['[u8; 20]', 'scale_info::12']
)

Return value¶

'scale_info::12'

Errors¶

BalanceLow¶

Not enough balance to perform action

FeeOverflow¶

Calculating total fee overflowed

GasLimitTooHigh¶

Gas limit is too high.

GasLimitTooLow¶

Gas limit is too low.

GasPriceTooLow¶

Gas price is too low.

InvalidNonce¶

Nonce is invalid

PaymentOverflow¶

Calculating total payment overflowed

Reentrancy¶

EVM reentrancy

TransactionMustComeFromEOA¶

EIP-3607,

Undefined¶

Undefined error.

WithdrawFailed¶

Withdraw fee failed