Method to_pyexception

crates/stdlib/src/binascii.rs:856–873

(&self, vm: &VirtualMachine)

impl ToPyException for Base64DecodeError {
    fn to_pyexception(&self, vm: &VirtualMachine) -> PyBaseExceptionRef {
        use base64::DecodeError::*;
        let message = match &self.0 {
            InvalidByte(0, PAD) => "Leading padding not allowed".to_owned(),
            InvalidByte(_, PAD) => "Discontinuous padding not allowed".to_owned(),
            InvalidByte(_, _) => "Only base64 data is allowed".to_owned(),
            InvalidLastSymbol(_, PAD) => "Excess data after padding".to_owned(),
            InvalidLastSymbol(length, _) => {
                format!(
                    "Invalid base64-encoded string: number of data characters {length} cannot be 1 more than a multiple of 4"
                )
            }
            // TODO: clean up errors
            InvalidLength(_) => "Incorrect padding".to_owned(),
            InvalidPadding => "Incorrect padding".to_owned(),
        };
        new_binascii_error(format!("error decoding base64: {message}"), vm)
    }
}