void
pdfout_data_drop (fz_context *ctx, pdfout_data *data)
{
switch (data->type)
{
case SCALAR: drop_scalar (ctx, to_scalar (ctx, data)); break;
case ARRAY: drop_array (ctx, to_array (ctx, data)); break;
case HASH: drop_hash (ctx, to_hash (ctx, data)); break;
default:
abort ();
}
}
/* Deallocation */
cell_t *drop_dependencies(secd_t *secd, cell_t *c) {
enum cell_type t = cell_type(c);
switch (t) {
case CELL_SYM:
if (c->as.sym.size != DONT_FREE_THIS)
free((char *)c->as.sym.data);
/* TODO: this silently ignores symbol memory corruption */
c->as.sym.size = DONT_FREE_THIS;
break;
case CELL_FRAME:
drop_cell(secd, c->as.frame.io);
// fall through
case CELL_CONS:
if (not_nil(c)) {
drop_cell(secd, get_car(c));
drop_cell(secd, get_cdr(c));
}
break;
case CELL_STR:
case CELL_ARRAY:
drop_array(secd, arr_mem(c));
break;
case CELL_REF:
drop_cell(secd, c->as.ref);
break;
case CELL_PORT:
secd_pclose(secd, c);
break;
case CELL_ARRMETA:
if (c->as.mcons.cells) {
size_t size = arrmeta_size(secd, c);
size_t i;
/* free the items */
for (i = 0; i < size; ++i) {
/* don't free uninitialized */
cell_t *ith = meta_mem(c) + i;
if (cell_type(ith) != CELL_UNDEF)
drop_dependencies(secd, ith);
}
}
break;
case CELL_INT: case CELL_FUNC: case CELL_OP:
case CELL_ERROR: case CELL_UNDEF:
return c;
default:
return new_error(secd, "drop_dependencies: unknown cell_type 0x%x", t);
}
return c;
}
