gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-locus-bw-line-numbers.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdiagnostics-show-caret -fdiagnostics-show-line-numbers" } */
   3
   4 /* This is a collection of unittests for diagnostic_show_locus;
   5    see the overview in diagnostic_plugin_test_show_locus.c.
   6
   7    In particular, note the discussion of why we need a very long line here:
   8 01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
   9    and that we can't use macros in this file.  */
  10
  11 void test_simple (void)
  12 {
  13 #if 0
  14   myvar = myvar.x; /* { dg-warning "test" } */
  15
  16 /* { dg-begin-multiline-output "" }
  17    14 |   myvar = myvar.x;
  18       |           ~~~~~^~
  19    { dg-end-multiline-output "" } */
  20 #endif
  21 }
  22
  23 void test_multiline (void)
  24 {
  25 #if 0
  26   x = (first_function ()
  27        + second_function ()); /* { dg-warning "test" } */
  28
  29 /* { dg-begin-multiline-output "" }
  30    26 |   x = (first_function ()
  31       |        ~~~~~~~~~~~~~~~~~
  32    27 |        + second_function ());
  33       |        ^ ~~~~~~~~~~~~~~~~~~
  34       |        |
  35       |        label
  36    { dg-end-multiline-output "" } */
  37 #endif
  38 }
  39
  40 void test_very_wide_line (void)
  41 {
  42 #if 0
  43                                                                                 float f = foo * bar; /* { dg-warning "95: test" } */
  44 /* { dg-begin-multiline-output "" }
  45       |        0         0         0         0         0         1         1
  46       |        5         6         7         8         9         0         1
  47       | 3456789012345678901234567890123456789012345678901234567890123456789012
  48    43 |                                       float f = foo * bar;
  49       |                                                 ~~~~^~~~~
  50       |                                                     |
  51       |                                                     label 0
  52       |                                                 bar * foo
  53    { dg-end-multiline-output "" } */
  54 #endif
  55 }
  56
  57 /* Unit test for rendering of insertion fixit hints
  58    (example taken from PR 62316).  */
  59
  60 void test_fixit_insert (void)
  61 {
  62 #if 0
  63    int a[2][2] = { 0, 1 , 2, 3 }; /* { dg-warning "insertion hints" } */
  64 /* { dg-begin-multiline-output "" }
  65    63 |    int a[2][2] = { 0, 1 , 2, 3 };
  66       |                    ^~~~
  67       |                    {   }
  68    { dg-end-multiline-output "" } */
  69 #endif
  70 }
  71
  72 /* Unit test for rendering of "remove" fixit hints.  */
  73
  74 void test_fixit_remove (void)
  75 {
  76 #if 0
  77   int a;; /* { dg-warning "example of a removal hint" } */
  78 /* { dg-begin-multiline-output "" }
  79    77 |   int a;;
  80       |         ^
  81       |         -
  82    { dg-end-multiline-output "" } */
  83 #endif
  84 }
  85
  86 /* Unit test for rendering of "replace" fixit hints.  */
  87
  88 void test_fixit_replace (void)
  89 {
  90 #if 0
  91   gtk_widget_showall (dlg); /* { dg-warning "example of a replacement hint" } */
  92 /* { dg-begin-multiline-output "" }
  93    91 |   gtk_widget_showall (dlg);
  94       |   ^~~~~~~~~~~~~~~~~~
  95       |   gtk_widget_show_all
  96    { dg-end-multiline-output "" } */
  97 #endif
  98 }
  99
 100
 101 /* Unit test for rendering of fix-it hints that add new lines.  */
 102
 103 void test_fixit_insert_newline (void)
 104 {
 105 #if 0
 106   switch (op)
 107     {
 108     case 'a':
 109       x = a;
 110     case 'b':  /* { dg-warning "newline insertion" } */
 111       x = b;
 112     }
 113 /* { dg-begin-multiline-output "" }
 114   109 |       x = a;
 115   +++ |+      break;
 116   110 |     case 'b':
 117       |     ^~~~~~~~
 118    { dg-end-multiline-output "" } */
 119 #endif
 120 }