def _payload_realloc(new_allocated):
payload_type = context.get_data_type(types.ListPayload(self._ty))
payload_size = context.get_abi_sizeof(payload_type)
# Account for the fact that the payload struct contains one entry
payload_size -= itemsize
allocsize, ovf = cgutils.muladd_with_overflow(
builder, new_allocated, ir.Constant(intp_t, itemsize),
ir.Constant(intp_t, payload_size))
with builder.if_then(ovf, likely=False):
context.call_conv.return_user_exc(builder, MemoryError,
("cannot resize list", ))
ptr = context.nrt.meminfo_varsize_realloc_unchecked(
builder, self._list.meminfo, size=allocsize)
cgutils.guard_memory_error(context, builder, ptr,
"cannot resize list")
self._payload.allocated = new_allocated
def wrap(self, builder, *args, **kwargs):
memptr = func(self, builder, *args, **kwargs)
msg = "Allocation failed (probably too large)."
cgutils.guard_memory_error(self._context, builder, memptr, msg=msg)
return memptr
