Cairo lint

Appearance

unwrap_syscall ​

Default: Enabled

Source Code

What it does ​

Detects if the function uses unwrap on a SyscallResult object.

Example ​

cairo
use starknet::storage_access::{storage_address_from_base, storage_base_address_from_felt252};
use starknet::syscalls::storage_read_syscall;

fn main() {
    let storage_address = storage_base_address_from_felt252(3534535754756246375475423547453);
    let result = storage_read_syscall(0, storage_address_from_base(storage_address));
    result.unwrap();
}

Can be changed to:

cairo
use starknet::SyscallResultTrait;
use starknet::storage_access::{storage_address_from_base, storage_base_address_from_felt252};
use starknet::syscalls::storage_read_syscall;

fn main() {
    let storage_address = storage_base_address_from_felt252(3534535754756246375475423547453);
    let result = storage_read_syscall(0, storage_address_from_base(storage_address));
    result.unwrap_syscall();
}