lib/Support/Options.cpp

   1 //===- llvm/Support/Options.cpp - Debug options support ---------*- 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 implements the helper objects for defining debug options using the
  11 // new API built on cl::opt, but not requiring the use of static globals.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/Support/Options.h"
  16 #include "llvm/Support/ManagedStatic.h"
  17
  18 using namespace llvm;
  19
  20 OptionRegistry::~OptionRegistry() {
  21   for (auto IT = Options.begin(); IT != Options.end(); ++IT)
  22     delete IT->second;
  23 }
  24
  25 void OptionRegistry::addOption(void *Key, cl::Option *O) {
  26   assert(Options.find(Key) == Options.end() &&
  27          "Argument with this key already registerd");
  28   Options.insert(std::make_pair(Key, O));
  29 }
  30
  31 static ManagedStatic<OptionRegistry> OR;
  32
  33 OptionRegistry &OptionRegistry::instance() { return *OR; }