ton/crypto/func/auto-tests/tests/camel2.fc

;; Here we also test "functions that just wrap other functions" like in camel1.fc,
;; but when they reorder arguments, e.g.
;; > T f(x,y) { return anotherF(y,x); }
;; This also works, even for wrappers of wrappers, even if anotherF is asm(with reorder).
;; But swapping arguments may sometimes lead to bytecode changes (see test2),
;; both with compute-asm-ltr and without it.

builder begin_cell() pure asm "NEWC";
cell end_cell(builder b) pure asm "ENDC";
slice begin_parse(cell c) pure asm "CTOS";
builder store_ref(builder b, cell c) pure asm(c b) "STREF";

builder beginCell() { return begin_cell(); }
cell endCell(builder b) { return end_cell(b); }
builder storeRef1(builder b, cell c) { return store_ref(b, c); }
builder storeRef2(cell c, builder b) { return store_ref(b, c); }
builder storeUint1(builder b, int x, int bw) { return store_uint(b, x, bw); }
builder storeUint2(builder b, int bw, int x) { return store_uint(b, x, bw); }

(int, int, int) compute_data_size(cell c, int max_cells) pure asm "CDATASIZE";
(int, int, int) computeDataSize1(cell c, int maxCells) { return compute_data_size(c, maxCells); }
(int, int, int) computeDataSize2(int maxCells, cell c) { return compute_data_size(c, maxCells); }

() throwIf(int condition, int excNo) { return throw_if(excNo, condition); }

() fake(int a, int b, int c) asm "DROP DROP DROP";
() fake2(int b, int c, int a) { return fake(a,b,c); }
() fake3(int c, int a, int b) { return fake(a,b,c); }
() fake4(int c, int b, int a) { return fake(a,b,c); }

(int, int, int) test1() method_id(101) {
    int x = 1;
    int y = 1;
    cell to_be_ref = beginCell().endCell();
    builder in_c = beginCell().storeUint1(123, 8);
    in_c = storeRef1(in_c, to_be_ref);
    var (a, b, c) = computeDataSize1(in_c.endCell(), 10);
    throwIf(0, 101);
    return (a, b + x, c + y);
}

(int, int, int) test2() method_id(102) {
    int x = 1;
    int y = 1;
    cell to_be_ref = beginCell().endCell();
    builder in_c = beginCell().storeUint2(8, 123);
    in_c = storeRef2(to_be_ref, in_c);
    var (a, b, c) = computeDataSize2(10, in_c.endCell());
    return (a, b + x, c + y);
}

(int, int, int) test3() method_id(103) {
    int x = 1;
    int y = 1;
    cell to_be_ref = begin_cell().end_cell();
    builder in_c = begin_cell().store_uint(123, 8);
    in_c = store_ref(in_c, to_be_ref);
    var (a, b, c) = compute_data_size(in_c.end_cell(), 10);
    return (a, b + x, c + y);
}

builder beginCell1() { return begin_cell(); }
builder beginCell11() { return beginCell1(); }
builder beginCell111() { return beginCell11(); }

cell endCell1(builder b) { return end_cell(b); }
cell endCell11(builder b) { return endCell1(b); }

slice beginParse1(cell c) { return begin_parse(c); }
slice beginParse11(cell c) { return beginParse1(c); }

builder storeInt1(builder b, int bw, int x) { return store_int(b, x, bw); }
builder storeInt11(int bw, int x, builder b) { return storeInt1(b, bw, x); }
builder storeInt111(builder b, int x, int bw) { return storeInt11(bw, x, b); }

slice test4() method_id(104) {
    builder b = beginCell111();
    b = storeInt11(32, 1, b);
    b = storeInt111(b, 2, 32).storeInt111(3, 32);
    return b.endCell11().beginParse11();
}

(int) test5(int a, int b, int c) method_id(105) {
    fake(a, b, c);
    fake2(b, c, a);
    fake3(c, a, b);
    fake4(c, b, a);
    return a;
}

() main() {
    throw(0);
}

{-
    method_id  | in | out
TESTCASE | 101 |    | 2 9 2
TESTCASE | 102 |    | 2 9 2
TESTCASE | 103 |    | 2 9 2
TESTCASE | 104 |    | CS{Cell{0018000000010000000200000003} bits: 0..96; refs: 0..0}

test1 and test3 fif code is absolutely identical, test2 (due to reorder) is a bit different:

@fif_codegen
"""
  test1 PROC:<{
    //
    NEWC        //  _5
    ENDC        //  to_be_ref
    NEWC        //  to_be_ref _8
    123 PUSHINT //  to_be_ref _8 _9=123
    SWAP        //  to_be_ref _9=123 _8
    8 STU       //  to_be_ref in_c
    STREF       //  in_c
    ENDC        //  _16
    10 PUSHINT  //  _16 _17=10
    CDATASIZE   //  a b c
    SWAP        //  a c b
    INC //  a c _22
    SWAP        //  a _22 c
    INC //  a _22 _23
  }>
"""

@fif_codegen
"""
  test2 PROC:<{
    //
    NEWC        //  _5
    ENDC        //  to_be_ref
    NEWC        //  to_be_ref _8
    123 PUSHINT //  to_be_ref _8 _10=123
    SWAP        //  to_be_ref _10=123 _8
    8 STU       //  to_be_ref in_c
    STREF       //  in_c
    10 PUSHINT
    SWAP
    ENDC
    SWAP
    CDATASIZE   //  a b c
    SWAP        //  a c b
    INC         //  a c _19
    SWAP        //  a _19 c
    INC         //  a _19 _20
  }>
"""

@fif_codegen
"""
  test3 PROC:<{
    //
    NEWC        //  _5
    ENDC        //  to_be_ref
    NEWC        //  to_be_ref _8
    123 PUSHINT //  to_be_ref _8 _9=123
    SWAP        //  to_be_ref _9=123 _8
    8 STU       //  to_be_ref in_c
    STREF       //  in_c
    ENDC        //  _16
    10 PUSHINT  //  _16 _17=10
    CDATASIZE   //  a b c
    SWAP        //  a c b
    INC //  a c _19
    SWAP        //  a _19 c
    INC //  a _19 _20
  }>
"""

@fif_codegen
"""
  test4 PROC:<{
    //
    NEWC	//  b
    1 PUSHINT	//  b _3=1
    SWAP	//  _3=1 b
    32 STI	//  b
    2 PUSHINT
    SWAP       // _5=2 b
    32 STI
    3 PUSHINT
    SWAP
    32 STI	//  b
    ENDC	//  _11
    CTOS	//  _12
  }>
"""

@fif_codegen
"""
  test5 PROC:<{
    //  a b c
    s2 s1 s0 PUSH3	//  a b c a b c
    DROP DROP DROP
    s2 s1 s0 PUSH3	//  a b c a b c
    DROP DROP DROP
    s2 s1 s0 PUSH3	//  a b c a b c
    DROP DROP DROP
    s2 PUSH
    -ROT            // a a b c
    DROP DROP DROP
  }>
"""

@fif_codegen_avoid storeUint1
@fif_codegen_avoid storeUint2
-}