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Build and manipulate TON smart contracts in easy way.

There is a newer version: 0.9.4

;; Simple library keeper

#include "../stdlib.fc";

const int DEFAULT_DURATION = 3600 * 24 * 365 * 100; ;; 100 years, can top-up in any time
const int ONE_TON = 1000000000;

cell empty() asm " PUSHREF";

;; https://docs.ton.org/tvm.pdf, page 138, SETLIBCODE
() set_lib_code(cell code, int mode) impure asm "SETLIBCODE";

() recv_internal(int msg_value, cell in_msg_full, slice in_msg_body) impure {
    slice cs = in_msg_full.begin_parse();
    int flags = cs~load_uint(4);
    slice sender = cs~load_msg_addr();


    cell lib_to_publish = get_data();

    int initial_gas = gas_consumed();
    (int order_cells, int order_bits, _) = compute_data_size(lib_to_publish, 2048);
    int size_counting_gas = gas_consumed() - initial_gas;

    int to_reserve = get_simple_compute_fee(MASTERCHAIN, size_counting_gas) +
                     get_storage_fee(MASTERCHAIN, DEFAULT_DURATION, order_bits, order_cells);
    raw_reserve(to_reserve, RESERVE_BOUNCE_ON_ACTION_FAIL);
    cell msg = begin_cell()
            .store_msg_flags_and_address_none(NON_BOUNCEABLE)
            .store_slice(sender)
            .store_coins(0)
            .store_prefix_only_body()
            .end_cell();
    send_raw_message(msg, SEND_MODE_CARRY_ALL_BALANCE);
    ;; https://docs.ton.org/tvm.pdf, page 138, SETLIBCODE
    set_lib_code(lib_to_publish, 2);  ;; if x = 2, the library is added as a public library (and becomes available to all smart contracts if the current smart contract resides in the masterchain);
    ;; brick contract
    set_code(empty());
    set_data(empty());
}