clang/test/ClangScanDeps/macro-expansions.cpp

   1 // This checks that there's no issue with the preprocessor handling user or built-in macro
   2 // expansion during dependency scanning.
   3
   4 // RUN: rm -rf %t
   5 // RUN: split-file %s %t
   6 // RUN: sed -e "s|DIR|%/t|g" %t/cdb.json.template > %t/cdb.json
   7
   8 // RUN: clang-scan-deps -compilation-database %t/cdb.json | FileCheck %s
   9
  10 // CHECK: test.o:
  11 // CHECK-NEXT: test.cpp
  12 // CHECK-NEXT: header1.h
  13 // CHECK-NEXT: header2.h
  14
  15 //--- cdb.json.template
  16 [{
  17   "directory" : "DIR",
  18   "command" : "clang -target x86_64-apple-macosx10.7 -c DIR/test.cpp -o DIR/test.o",
  19   "file" : "DIR/test.o"
  20 }]
  21
  22 //--- test.cpp
  23 #define FN_MACRO(x) 1
  24 #if FN_MACRO(a)
  25 #include "header1.h"
  26 #endif
  27
  28 #if __has_cpp_attribute(clang::fallthrough)
  29 #include "header2.h"
  30 #endif
  31
  32 //--- header1.h
  33 #ifndef _HEADER1_H_
  34 #define _HEADER1_H_
  35 #endif
  36
  37 //--- header2.h
  38 #ifndef _HEADER2_H_
  39 #define _HEADER2_H_
  40 #endif