adapters.nct

//! String and Writer adapters for the package-internal JSON byte-sink contract.

see ./index.nct

use /io.Writer
use /string.String

struct StringSink {
    destination: &+String
}

struct WriterSink<W> {
    destination: &+W
}

construct StringSink {
    func new(destination: &+String): Self {
        return StringSink { destination: destination }
    }
}

construct WriterSink<W> {
    func new(destination: &+W): Self {
        return WriterSink<W> { destination: destination }
    }
}

instance StringSink {
    method &+self.emit(bytes: &[u8]): void! {
        self.destination.try_push_utf8(bytes)?
        return
    }
}

instance WriterSink<W> where W impl Writer {
    method &+self.emit(bytes: &[u8]): void! {
        self.destination.write(bytes)?
        return
    }
}