[BUG] variable used in if condition is moved despite it is used in the if statement

[filipsajdak]

In the current implementation of cppfront (b370ab8), the following code:

main: () = {
    b : bool = true;

    if b {
        std::cout << b << std::endl;
    }
}

Generates:

auto main() -> int{
    bool b {true}; 

    if (std::move(b)) {
        std::cout << std::move(b) << std::endl;
    }
}

The b variable is moved in the if condition despite its use in the if statement.

Adding the use of b after an if removes the move of b in the if condition and if statement which is correct.

[filipsajdak]

Adding an else with another use of b in statement-false also adds move:

auto main() -> int{
    bool b {true}; 

    if (std::move(b)) {
        std::cout << std::move(b) << std::endl;
    }else {
        std::cout << !(std::move(b)) << std::endl;
    }
}

[hsutter]

Thanks! These cases should work now, if not please reopen.

[filipsajdak]

Confirmed. Fixed.