1 ========== 2 ClangCheck 3 ========== 4 5 `ClangCheck` is a small wrapper around :doc:`LibTooling` which can be used to 6 do basic error checking and AST dumping. 7 8 .. code-block:: console 9 10 $ cat <<EOF > snippet.cc 11 > void f() { 12 > int a = 0 13 > } 14 > EOF 15 $ ~/clang/build/bin/clang-check snippet.cc -ast-dump -- 16 Processing: /Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc. 17 /Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:2:12: error: expected ';' at end of 18 declaration 19 int a = 0 20 ^ 21 ; 22 (TranslationUnitDecl 0x7ff3a3029ed0 <<invalid sloc>> 23 (TypedefDecl 0x7ff3a302a410 <<invalid sloc>> __int128_t '__int128') 24 (TypedefDecl 0x7ff3a302a470 <<invalid sloc>> __uint128_t 'unsigned __int128') 25 (TypedefDecl 0x7ff3a302a830 <<invalid sloc>> __builtin_va_list '__va_list_tag [1]') 26 (FunctionDecl 0x7ff3a302a8d0 </Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:1:1, line:3:1> f 'void (void)' 27 (CompoundStmt 0x7ff3a302aa10 <line:1:10, line:3:1> 28 (DeclStmt 0x7ff3a302a9f8 <line:2:3, line:3:1> 29 (VarDecl 0x7ff3a302a980 <line:2:3, col:11> a 'int' 30 (IntegerLiteral 0x7ff3a302a9d8 <col:11> 'int' 0)))))) 31 1 error generated. 32 Error while processing snippet.cc. 33 34 The '--' at the end is important as it prevents `clang-check` from search for a 35 compilation database. For more information on how to setup and use `clang-check` 36 in a project, see :doc:`HowToSetupToolingForLLVM`. 37
