clang/test/Frontend/source-col-map.c

   1 // RUN: not %clang_cc1 -fsyntax-only -fno-diagnostics-show-line-numbers -fmessage-length=75 -o /dev/null -x c < %s 2>&1 | FileCheck %s -strict-whitespace
   2 // REQUIRES: utf8-capable-terminal
   3
   4 // Test case for the text diagnostics source column conversion crash.
   5
   6 // This test case tries to check the error diagnostic message printer, which is
   7 // responsible to create the code snippet shorter than the message-length (in
   8 // number of columns.)
   9 //
  10 // The error diagnostic message printer should be able to handle the non-ascii
  11 // characters without any segmentation fault or assertion failure.  If your
  12 // changes to clang frontend crashes this case, it is likely that you are mixing
  13 // column index with byte index which are two totally different concepts.
  14
  15 // NOTE: This file is encoded in UTF-8 and intentionally contains some
  16 // non-ASCII characters.
  17
  18 __attribute__((format(printf, 1, 2)))
  19 extern int printf(const char *fmt, ...);
  20
  21 void test1(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα
  22 // CHECK: unknown type name 'Unknown'
  23 // CHECK-NEXT: void test1(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα ααα...
  24 // CHECK-NEXT: {{^           \^$}}
  25
  26 void test2(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα
  27
  28 // CHECK: unknown type name 'Unknown'
  29 // CHECK-NEXT: void test2(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα
  30 // CHECK-NEXT: {{^           \^$}}
  31
  32 void test3() {
  33    /* αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s");
  34 }
  35 // CHECK:       format specifies type 'int' but the argument has
  36 // CHECK:       type 'char *'
  37 // CHECK-NEXT:   ...αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s");
  38 // CHECK-NEXT: {{^                                                             ~~   \^~~$}}
  39 // CHECK-NEXT: {{^                                                             %s$}}