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2 Commits

Author SHA1 Message Date
Tristan B. Velloza Kildaire a493114373 Encoding
- `encode()` now uses niknaks
2023-10-02 15:37:45 +02:00
Tristan B. Velloza Kildaire aea8ac5bb6 Encoding
- Switched to niknaks for `decode()`
2023-10-02 15:05:33 +02:00
1 changed files with 6 additions and 59 deletions

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@ -4,6 +4,7 @@
module tristanable.encoding;
import std.conv : to;
import niknaks.bits : bytesToIntegral, Order, order, toBytes;
/**
* Represents a tagged message that has been decoded
@ -60,31 +61,9 @@ public final class TaggedMessage
/* The decoded tag */
ulong decodedTag;
/* If on little endian then dump direct */
version(LittleEndian)
{
decodedTag = *cast(ulong*)encodedMessage.ptr;
}
/* If on big endian then reverse received 8 bytes */
else version(BigEndian)
{
/* Base of our tag */
byte* tagHighPtr = cast(byte*)decodedTag.ptr;
*(tagHighPtr+0) = encodedMessage[7];
*(tagHighPtr+1) = encodedMessage[6];
*(tagHighPtr+2) = encodedMessage[5];
*(tagHighPtr+3) = encodedMessage[4];
*(tagHighPtr+4) = encodedMessage[3];
*(tagHighPtr+5) = encodedMessage[2];
*(tagHighPtr+6) = encodedMessage[1];
*(tagHighPtr+7) = encodedMessage[0];
}
/* Blessed is the fruit of thy womb Jesus, hail Mary, mother of God, pray for our sinners - now and at the hour of our death - Amen */
else
{
pragma(msg, "Not too sure about tha 'ey 😳️");
}
/* Take ulong-many bytes and only flip them to LE if not on LE host */
decodedTag = order(bytesToIntegral!(ushort)(cast(ubyte[])encodedMessage), Order.LE);
/* Set the tag */
decodedMessage.setTag(decodedTag);
@ -106,41 +85,9 @@ public final class TaggedMessage
/* The encoded bytes */
byte[] encodedMessage;
/* If on little endian, then dump 64 bit as is - little endian */
version(LittleEndian)
{
/* Base (little first) of tag */
byte* basePtr = cast(byte*)&tag;
/* If on little endian then no re-order, if host is BE flip (the tag) */
encodedMessage ~= toBytes(order(tag, Order.LE));
encodedMessage ~= *(basePtr+0);
encodedMessage ~= *(basePtr+1);
encodedMessage ~= *(basePtr+2);
encodedMessage ~= *(basePtr+3);
encodedMessage ~= *(basePtr+4);
encodedMessage ~= *(basePtr+5);
encodedMessage ~= *(basePtr+6);
encodedMessage ~= *(basePtr+7);
}
/* If on big endian, then traverse 64-bit number in reverse - and tack on */
else version(BigEndian)
{
/* Base (biggest first) of tag */
byte* highPtr = cast(byte*)&tag;
encodedMessage ~= *(highPtr+7);
encodedMessage ~= *(highPtr+6);
encodedMessage ~= *(highPtr+5);
encodedMessage ~= *(highPtr+4);
encodedMessage ~= *(highPtr+3);
encodedMessage ~= *(highPtr+2);
encodedMessage ~= *(highPtr+1);
encodedMessage ~= *(highPtr+0);
}
/* Hail marry, mother of God, pray for our sinners, now and at the our of our death Amen */
else
{
pragma(msg, "Not feeling scrumptious homeslice 😎️");
}
/* Tack on the data */
encodedMessage ~= data;