How to use the bitsyntax.builder function in bitsyntax
To help you get started, we’ve selected a few bitsyntax examples, based on popular ways it is used in public projects.
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squaremo / amqp.node / lib / frame.js View on Github 
octet short long size octets octet
In general I want to know those first three things straight away, so I
can discard frames early.
*/
// framing constants
var FRAME_METHOD = constants.FRAME_METHOD,
FRAME_HEARTBEAT = constants.FRAME_HEARTBEAT,
FRAME_HEADER = constants.FRAME_HEADER,
FRAME_BODY = constants.FRAME_BODY,
FRAME_END = constants.FRAME_END;
var bodyCons =
Bits.builder(FRAME_BODY,
'channel:16, size:32, payload:size/binary',
FRAME_END);
// %%% TESTME possibly better to cons the first bit and write the
// second directly, in the absence of IO lists
module.exports.makeBodyFrame = function(channel, payload) {
return bodyCons({channel: channel, size: payload.length, payload: payload});
};
var frameHeaderPattern = Bits.matcher('type:8', 'channel:16',
'size:32', 'rest/binary');
function parseFrame(bin, max) {
var fh = frameHeaderPattern(bin);
if (fh) {
var size = fh.size, rest = fh.rest;octet short long size octets octet
In general I want to know those first three things straight away, so I
can discard frames early.
*/
// framing constants
var FRAME_METHOD = constants.FRAME_METHOD,
FRAME_HEARTBEAT = constants.FRAME_HEARTBEAT,
FRAME_HEADER = constants.FRAME_HEADER,
FRAME_BODY = constants.FRAME_BODY,
FRAME_END = constants.FRAME_END;
var bodyCons =
Bits.builder(FRAME_BODY,
'channel:16, size:32, payload:size/binary',
FRAME_END);
// %%% TESTME possibly better to cons the first bit and write the
// second directly, in the absence of IO lists
module.exports.makeBodyFrame = function(channel, payload) {
return bodyCons({channel: channel, size: payload.length, payload: payload});
};
var frameHeaderPattern = Bits.matcher('type:8', 'channel:16',
'size:32', 'rest/binary');
function parseFrame(bin, max) {
var fh = frameHeaderPattern(bin);
if (fh) {
var size = fh.size, rest = fh.rest;
