contrib/llvm/tools/clang/lib/Basic/Sanitizers.cpp

   1 //===--- Sanitizers.cpp - C Language Family Language Options ----*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //  This file defines the classes from Sanitizers.h
  11 //
  12 //===----------------------------------------------------------------------===//
  13 #include "clang/Basic/Sanitizers.h"
  14 #include "clang/Basic/LLVM.h"
  15 #include "llvm/ADT/StringRef.h"
  16 #include "llvm/ADT/StringSwitch.h"
  17 #include "llvm/Support/MathExtras.h"
  18
  19 using namespace clang;
  20
  21 SanitizerSet::SanitizerSet() : Mask(0) {}
  22
  23 bool SanitizerSet::has(SanitizerMask K) const {
  24   assert(llvm::countPopulation(K) == 1);
  25   return Mask & K;
  26 }
  27
  28 void SanitizerSet::set(SanitizerMask K, bool Value) {
  29   assert(llvm::countPopulation(K) == 1);
  30   Mask = Value ? (Mask | K) : (Mask & ~K);
  31 }
  32
  33 void SanitizerSet::clear() {
  34   Mask = 0;
  35 }
  36
  37 bool SanitizerSet::empty() const {
  38   return Mask == 0;
  39 }
  40
  41 SanitizerMask clang::parseSanitizerValue(StringRef Value, bool AllowGroups) {
  42   SanitizerMask ParsedKind = llvm::StringSwitch<SanitizerMask>(Value)
  43 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID)
  44 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
  45   .Case(NAME, AllowGroups ? SanitizerKind::ID##Group : 0)
  46 #include "clang/Basic/Sanitizers.def"
  47     .Default(0);
  48   return ParsedKind;
  49 }
  50
  51 SanitizerMask clang::expandSanitizerGroups(SanitizerMask Kinds) {
  52 #define SANITIZER(NAME, ID)
  53 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
  54   if (Kinds & SanitizerKind::ID##Group)                                        \
  55     Kinds |= SanitizerKind::ID;
  56 #include "clang/Basic/Sanitizers.def"
  57   return Kinds;
  58 }