sbt.incremental-compiler.0.13.5-M3.source-code.javaprotocol.scala Maven / Gradle / Ivy
package sbinary;
import Operations._;
trait StandardPrimitives extends CoreProtocol{
private def readUnsigned(in : Input) = in.readByte.toInt & 0xFF
implicit object BooleanFormat extends Format[Boolean]{
def reads(in : Input) = in.readByte != 0
def writes(out : Output, t : Boolean) = out.writeByte(if (t) (0x01) else (0x00));
}
implicit object CharFormat extends Format[Char]{
def reads(in : Input) = ((readUnsigned(in) << 8) + readUnsigned(in)).toChar;
def writes(out : Output, t : Char) = {
out.writeByte(((t >>> 8) & 0xFF).toByte);
out.writeByte(((t >>> 0) & 0xFF).toByte);
}
}
implicit object ShortFormat extends Format[Short]{
def reads(in : Input) = ((readUnsigned(in) << 8) + readUnsigned(in)).toShort
def writes(out : Output, t : Short) = {
out.writeByte(((t >>> 8) & 0xFF).toByte);
out.writeByte(t.toByte);
}
}
implicit object IntFormat extends Format[Int]{
def reads(in : Input) = {
val ch1 = readUnsigned(in);
val ch2 = readUnsigned(in);
val ch3 = readUnsigned(in);
val ch4 = readUnsigned(in);
((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0))
}
def writes(out : Output, t : Int) {
out.writeByte(((t >>> 24) & 0xFF).toByte);
out.writeByte(((t >>> 16) & 0xFF).toByte);
out.writeByte(((t >>> 8) & 0xFF).toByte);
out.writeByte(((t >>> 0) & 0xFF).toByte);
}
}
implicit object LongFormat extends Format[Long]{
def reads(in : Input) =
(readUnsigned(in).toLong << 56) +
(readUnsigned(in).toLong << 48) +
(readUnsigned(in).toLong << 40) +
(readUnsigned(in).toLong << 32) +
(readUnsigned(in).toLong << 24) +
(readUnsigned(in).toLong << 16) +
(readUnsigned(in).toLong << 8) +
(readUnsigned(in).toLong << 0);
def writes(out : Output, t : Long) = {
out.writeByte((t >>> 56).toByte);
out.writeByte((t >>> 48).toByte);
out.writeByte((t >>> 40).toByte);
out.writeByte((t >>> 32).toByte);
out.writeByte((t >>> 24).toByte);
out.writeByte((t >>> 16).toByte);
out.writeByte((t >>> 8).toByte);
out.writeByte((t >>> 0).toByte);
}
}
implicit object FloatFormat extends Format[Float]{
def reads(in : Input) = java.lang.Float.intBitsToFloat(read[Int](in))
def writes(out : Output, t : Float) = write[Int](out, java.lang.Float.floatToIntBits(t));
}
implicit object DoubleFormat extends Format[Double]{
def reads(in : Input) = java.lang.Double.longBitsToDouble(read[Long](in));
def writes(out : Output, t : Double) = write[Long](out, java.lang.Double.doubleToLongBits(t));
}
}
trait JavaUTF extends CoreProtocol{
private[this] def readUnsignedByte(in : Input) : Int = in.readByte.toInt & 0xFF
private[this] def readUnsignedShort(in : Input) : Int =
(readUnsignedByte(in) << 8) + readUnsignedByte(in)
private[this] val buffers = new java.lang.ThreadLocal[(Array[Char], Array[Byte])]{
override def initialValue() = (new Array[Char](80), new Array[Byte](80))
}
private[this] def fetchBuffers(size : Int) = {
if (buffers.get()._1.length < size){
buffers.set((new Array[Char](size * 2), new Array[Byte](size * 2)));
}
buffers.get();
}
/**
* A Format for strings compatible with the modified UTF format used by
* java.io.DataInput and java.io.DataOutput.
*/
implicit object StringFormat extends Format[String]{
def reads(in : Input) = {
val utflen = readUnsignedShort(in);
val (cbuffer, bbuffer) = fetchBuffers(utflen);
in.readFully(bbuffer, 0, utflen);
var count, charCount, c, char2, char3 = 0;
def malformed(index : Int) = error("Malformed input around byte " + index);
def partial = error("Malformed input: Partial character at end");
while((count < utflen) && {c = bbuffer(count) & 0xff; c <= 127 }) {
cbuffer(charCount) = c.toChar;
charCount += 1;
count += 1;
}
while(count < utflen){
c = bbuffer(count).toInt & 0xFF
cbuffer(charCount) = ((c >> 4) match {
case 0|1|2|3|4|5|6|7 => {
count += 1;
c
}
case 12|13 => {
count += 2;
if (count > utflen) partial;
char2 = bbuffer(count - 1)
if ((char2 & 0xC0) != 0x80) malformed(count);
(((c & 0x1F) << 6) | (char2 & 0x3F));
}
case 14 => {
count += 3;
char2 = bbuffer(count - 2);
char3 = bbuffer(count - 1);
if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80))
malformed(count - 1);
((c & 0x0F).toInt << 12) | ((char2 & 0x3F).toInt << 6) | ((char3 & 0x3F).toInt << 0);
}
case _ => malformed(count);
}).toChar
charCount += 1;
}
new String(cbuffer, 0, charCount);
}
def writes(out : Output, value : String){
var utflen = 0;
var i = 0;
def c = value.charAt(i);
while(i < value.length){
utflen += (
if ((c >= 0x0001) && (c <= 0x007F)) 1
else if (c > 0x07FF) 3
else 2)
i += 1;
}
if (utflen > 65535)
error("encoded string too long: " + utflen + " bytes");
val bbuffer = fetchBuffers(utflen + 2)._2;
var count = 0;
def append(value : Int) {
bbuffer(count) = value.toByte;
count += 1;
}
append((utflen >>> 8) & 0xFF)
append(utflen & 0xFF)
i = 0;
while((i < value.length) && ((c >= 0x0001) && (c <= 0x007F))) {
bbuffer(count) = c.toByte;
count += 1;
i += 1;
}
while(i < value.length){
if ((c >= 0x0001) && (c <= 0x007F)) {
append(c);
} else if (c > 0x07FF) {
append(0xE0 | ((c >> 12) & 0x0F));
append(0x80 | ((c >> 6) & 0x3F));
append(0x80 | ((c >> 0) & 0x3F));
} else {
append(0xC0 | ((c >> 6) & 0x1F));
append(0x80 | ((c >> 0) & 0x3F));
}
i += 1;
}
out.writeAll(bbuffer, 0, utflen + 2);
}
}
}
trait JavaFormats extends StandardPrimitives with JavaUTF{
}
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