public static void printf(OutputStream os, Call eval, int length) throws Throwable {
if (length == 0) return;
String result = eval.printf(length);
byte[] bytes = result.getBytes();
os.write(bytes, 0, bytes.length);
}
public static void write(OutputStream os, Call call, int length) throws Throwable {
for (int i = 0; i < length; i++) {
String string = call.getArgString(i, length);
if (string == null) string = "null";
byte[] bytes = string.getBytes();
os.write(bytes, 0, bytes.length);
}
}
public static void writeStream(OutputStream os, Call call, int length) throws Throwable {
if (length < 1) return;
char[] buf = new char[256];
int len;
Object obj = call.getArgObject(0, length);
if (obj instanceof ReadStream) {
ReadStream is = (ReadStream) obj;
is.writeToStream(os);
} else if (obj instanceof ReadWritePair) {
((ReadWritePair) obj).getReadStream().writeToStream(os);
} else if (obj instanceof InputStream) {
if (os instanceof WriteStream) {
((WriteStream) os).writeStream((InputStream) obj);
} else {
int ch;
InputStream is = (InputStream) obj;
while ((ch = is.read()) >= 0) os.write(ch);
}
} else throw new IllegalArgumentException("expected stream at " + obj.getClass().getName());
}