Buffer::$protoMethods = array('get' => function ($index) {
$self = Func::getContext();
$i = (int) $index;
if ($i < 0 || $i >= $self->length) {
throw new Ex(Error::create('offset is out of bounds'));
}
return (double) ord($self->raw[$i]);
}, 'set' => function ($index, $byte) {
$self = Func::getContext();
$i = (int) $index;
if ($i < 0 || $i >= $self->length) {
throw new Ex(Error::create('offset is out of bounds'));
}
$old = $self->raw;
$self->raw = substr($old, 0, $i) . chr($byte) . substr($old, $i + 1);
return $self->raw;
}, 'write' => function ($data, $enc = null, $start = null, $len = null) {
$self = Func::getContext();
//allow second argument (enc) to be omitted
if (func_num_args() > 1 && !is_string($enc)) {
$len = $start;
$start = $enc;
$enc = null;
}
$data = new Buffer($data, $enc);
$new = $data->raw;
if ($len !== null) {
$newLen = (int) $len;
$new = substr($new, 0, $newLen);
} else {
$newLen = $data->length;
}
$start = (int) $start;
$old = $self->raw;
$oldLen = $self->length;
if ($start + $newLen > strlen($old)) {
$newLen = $oldLen - $start;
}
$pre = $start === 0 ? '' : substr($old, 0, $start);
$self->raw = $pre . $new . substr($old, $start + $newLen);
}, 'slice' => function ($start, $end = null) {
$self = Func::getContext();
$len = $self->length;
if ($len === 0) {
return new Buffer(0);
}
$start = (int) $start;
if ($start < 0) {
$start = $len + $start;
if ($start < 0) {
$start = 0;
}
}
if ($start >= $len) {
return new Buffer(0);
}
$end = $end === null ? $len : (int) $end;
if ($end < 0) {
$end = $len + $end;
}
if ($end < $start) {
$end = $start;
}
if ($end > $len) {
$end = $len;
}
$new = substr($self->raw, $start, $end - $start);
return new Buffer($new, 'binary');
}, 'toString' => function ($enc = 'utf8', $start = null, $end = null) {
$self = Func::getContext();
$raw = $self->raw;
if (func_num_args() > 1) {
$raw = substr($raw, $start, $end - $start + 1);
}
if ($enc === 'hex') {
return bin2hex($raw);
}
if ($enc === 'base64') {
return base64_encode($raw);
}
return $raw;
}, 'toJSON' => function () {
$self = Func::getContext();
return $self->toJSON();
}, 'inspect' => function () {
$self = Func::getContext();
return $self->toJSON(Buffer::$SHOW_MAX);
}, 'clone' => function () {
$self = Func::getContext();
return new Buffer($self->raw, 'binary');
});
