void StackmapList::update(int index, jushort count, jushort height, jushort bci)
{
if (is_short_map(index)) {
juint entry = uint_field(entry_stat_offset(index));
GUARANTEE(height <= 0x3, "Invalid map type chosen in set_stack_height");
GUARANTEE(count <= 0xF, "Invalid map type chosen in set_locals");
entry |= ((height & StackmapListDesc::SHORT_ENTRY_STACK_HEIGHT_MASK) << 1) |
(count << 3);
// clear out existing bci (IMPL_NOTE: is this necessary?)
entry &= 0xFFFF007F;
// set new bci
entry |= (bci << 7);
uint_field_put(entry_stat_offset(index), entry);
GUARANTEE(get_stack_height(index) == height,
"StackmapList:Invalid short stack height");
GUARANTEE(get_locals(index) == count,
"StackmapList:Invalid short locals");
GUARANTEE(get_bci(index) == bci, "StackmapList:set_bci failed");
} else {
TypeArray::Raw longmap(obj_field(entry_stat_offset(index)));
longmap().ushort_at_put(0, count);
longmap().ushort_at_put(1, height);
longmap().ushort_at_put(2, bci);
GUARANTEE(get_stack_height(index) == height,
"StackmapList:Invalid long map stack height");
GUARANTEE(get_locals(index) == count,
"StackmapList:Invalid long map locals");
GUARANTEE(get_bci(index) == bci, "StackmapList:Invalid long map bci");
}
}
juint suspend_count() {
return uint_field(suspend_count_offset());
}
juint flags_and_size() {
return uint_field(flags_and_size_offset());
}
