Macro soroban_sdk::assert_with_error

macro_rules! assert_with_error {
    ($env:expr, $cond:expr, $error:expr) => { ... };
}

Assert a condition and panic with the given error if it is false.

The first argument in the list must be a reference to an Env.

The second argument is an expression that if resolves to false will cause a panic with the error in the third argument.

The third argument is an error value. The error value will be given to any calling contract.

Equivalent to assert!, but with an error value instead of a string. The error value will be given to any calling contract.

See contracterror for how to define an error type.