gcc/testsuite/gdc.test/fail_compilation/nogc2.d

   1 // REQUIRED_ARGS: -o-
   2
   3 /***************** CatExp *******************/
   4
   5 /*
   6 TEST_OUTPUT:
   7 ---
   8 fail_compilation/nogc2.d(20): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
   9 fail_compilation/nogc2.d(21): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  10 fail_compilation/nogc2.d(22): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  11 fail_compilation/nogc2.d(24): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  12 fail_compilation/nogc2.d(25): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  13 fail_compilation/nogc2.d(26): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  14 fail_compilation/nogc2.d(27): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  15 fail_compilation/nogc2.d(28): Error: cannot use operator `~` in `@nogc` function `nogc2.testCat`
  16 ---
  17 */
  18 @nogc void testCat(int[] a, string s)
  19 {
  20     int[] a1 = a ~ a;
  21     int[] a2 = a ~ 1;
  22     int[] a3 = 1 ~ a;
  23
  24     string s1 = s ~ s;
  25     string s2 = s ~ "a";
  26     string s3 = "a" ~ s;
  27     string s4 = s ~ 'c';
  28     string s5 = 'c' ~ s;
  29
  30     string s6 = "a" ~ "b";      // no error
  31     string s7 = "a" ~ 'c';      // no error
  32     string s8 = 'c' ~ "b";      // no error
  33 }
  34
  35 /***************** CatAssignExp *******************/
  36
  37 /*
  38 TEST_OUTPUT:
  39 ---
  40 fail_compilation/nogc2.d(47): Error: cannot use operator `~=` in `@nogc` function `nogc2.testCatAssign`
  41 fail_compilation/nogc2.d(49): Error: cannot use operator `~=` in `@nogc` function `nogc2.testCatAssign`
  42 fail_compilation/nogc2.d(50): Error: cannot use operator `~=` in `@nogc` function `nogc2.testCatAssign`
  43 ---
  44 */
  45 @nogc void testCatAssign(int[] a, string s)
  46 {
  47     a ~= 1;
  48
  49     s ~= "a";
  50     s ~= 'c';
  51 }
  52
  53 /***************** ArrayLiteralExp *******************/
  54
  55 @nogc int* barA();
  56
  57 /*
  58 TEST_OUTPUT:
  59 ---
  60 fail_compilation/nogc2.d(69): Error: array literal in `@nogc` function `nogc2.testArray` may cause a GC allocation
  61 fail_compilation/nogc2.d(70): Error: array literal in `@nogc` function `nogc2.testArray` may cause a GC allocation
  62 ---
  63 */
  64 @nogc void testArray()
  65 {
  66     enum arrLiteral = [null, null];
  67
  68     int* p;
  69     auto a = [p, p, barA()];
  70     a = arrLiteral;
  71 }
  72
  73 /***************** AssocArrayLiteralExp *******************/
  74
  75 /*
  76 TEST_OUTPUT:
  77 ---
  78 fail_compilation/nogc2.d(86): Error: associative array literal in `@nogc` function `nogc2.testAssocArray` may cause a GC allocation
  79 fail_compilation/nogc2.d(87): Error: associative array literal in `@nogc` function `nogc2.testAssocArray` may cause a GC allocation
  80 ---
  81 */
  82 @nogc void testAssocArray()
  83 {
  84     enum aaLiteral = [10: 100];
  85
  86     auto aa = [1:1, 2:3, 4:5];
  87     aa = aaLiteral;
  88 }
  89
  90 /***************** IndexExp *******************/
  91
  92 /*
  93 TEST_OUTPUT:
  94 ---
  95 fail_compilation/nogc2.d(100): Error: assigning an associative array element in `@nogc` function `nogc2.testIndex` may cause a GC allocation
  96 ---
  97 */
  98 @nogc void testIndex(int[int] aa)
  99 {
 100     aa[1] = 0;
 101     int n = aa[1];
 102 }