#pragma once

typedef struct io·Reader
{
    Iface impl;
    int (*read)(void*, byte *buf, int n);
} io·Reader;

typedef struct io·ByteReader
{
    Iface impl;
    int (*read)(void*, byte *buf, int n);
    byte (*get)(void*);
} io·ByteReader;

typedef struct io·Writer
{
    Iface impl;
    int (*write)(void*, byte *buf, int n);
} io·Writer;

typedef struct io·ReadWriter
{
    Iface impl;
    int (*read)(void*, byte *buf, int n);
    int (*write)(void*, byte *buf, int n);
} io·ReadWriter;

typedef enum io·SeekPos
{
    SEEK·set,
    SEEK·cur,
    SEEK·end,
} io·SeekPos;