C++ ArrayIter::secondRef方法代码示例

/* This function is called repeatedly by rl_completion_matches. The first
 * invocation has state = 0, subsequent ones have state != 0. A return value of
 * nullptr indicates that all possible completions have been returned. */
static char* _readline_command_generator(const char* text, int state) {
  static ArrayIter iter;
  if (state == 0) {
    iter = s_readline->array.begin();
  }
  auto text_str = String(text);
  while (iter) {
    auto value = iter.secondRef().toString();
    ++iter;
    if (text_str == value.substr(0, text_str.length())) {
      // readline frees this using free(), so we must use malloc() and not new
      return strdup(value.data());
    }
  }
  return nullptr;
}

bool BuiltinSymbols::Load(AnalysisResultPtr ar, bool extOnly /* = false */) {
    if (Loaded) return true;
    Loaded = true;

    // load extension functions first, so system/classes may call them
    ParseExtFunctions(ar, ExtensionFunctions, false);
    AnalysisResultPtr ar2 = AnalysisResultPtr(new AnalysisResult());
    s_variables = VariableTablePtr(new VariableTable(*ar2.get()));
    s_constants = ConstantTablePtr(new ConstantTable(*ar2.get()));

    // parse all PHP files under system/classes
    if (!extOnly) {
        ar = AnalysisResultPtr(new AnalysisResult());
        ar->loadBuiltinFunctions();
        string slib = systemlib_path();
        if (slib.empty()) {
            for (const char **cls = SystemClasses; *cls; cls++) {
                string phpBaseName = "/system/classes/";
                phpBaseName += *cls;
                phpBaseName += ".php";
                Parse(ar, phpBaseName, Option::GetSystemRoot() + phpBaseName);
            }
        } else {
            Parse(ar, slib, slib);
        }
        ar->analyzeProgram(true);
        ar->inferTypes();
        const StringToFileScopePtrMap &files = ar->getAllFiles();
        for (StringToFileScopePtrMap::const_iterator iterFile = files.begin();
                iterFile != files.end(); iterFile++) {
            const StringToClassScopePtrVecMap &classes =
                iterFile->second->getClasses();
            for (StringToClassScopePtrVecMap::const_iterator iter = classes.begin();
                    iter != classes.end(); ++iter) {
                assert(iter->second.size() == 1);
                iter->second[0]->setSystem();
                assert(!s_classes[iter->first]);
                s_classes[iter->first] = iter->second[0];
            }
        }
    } else {
        NoSuperGlobals = true;
    }

    // load extension constants, classes and dynamics
    ParseExtConsts(ar, ExtensionConsts, false);
    ParseExtClasses(ar, ExtensionClasses, false);
    for (unsigned int i = 0; i < Option::SepExtensions.size(); i++) {
        Option::SepExtensionOptions &options = Option::SepExtensions[i];
        string soname = options.soname;
        if (soname.empty()) {
            soname = string("lib") + options.name + ".so";
        }
        if (!options.lib_path.empty()) {
            soname = options.lib_path + "/" + soname;
        }
        if (!LoadSepExtensionSymbols(ar, options.name, soname)) {
            return false;
        }
    }

    if (!extOnly) {
        Array constants = ClassInfo::GetSystemConstants();
        LocationPtr loc(new Location);
        for (ArrayIter it = constants.begin(); it; ++it) {
            CVarRef key = it.first();
            if (!key.isString()) continue;
            std::string name = key.toCStrRef().data();
            if (s_constants->getSymbol(name)) continue;
            if (name == "true" || name == "false" || name == "null") continue;
            CVarRef value = it.secondRef();
            if (!value.isInitialized() || value.isObject()) continue;
            ExpressionPtr e = Expression::MakeScalarExpression(ar2, ar2, loc, value);
            TypePtr t =
                value.isNull()    ? Type::Null    :
                value.isBoolean() ? Type::Boolean :
                value.isInteger() ? Type::Int64   :
                value.isDouble()  ? Type::Double  :
                value.isArray()   ? Type::Array   : Type::Variant;

            s_constants->add(key.toCStrRef().data(), t, e, ar2, e);
        }
        s_variables = ar2->getVariables();
        for (int i = 0, n = NumGlobalNames(); i < n; ++i) {
            s_variables->add(GlobalNames[i], Type::Variant, false, ar,
                             ConstructPtr(), ModifierExpressionPtr());
        }
    }
    s_constants->setDynamic(ar, "SID", true);

    return true;
}

bool BuiltinSymbols::Load(AnalysisResultPtr ar) {
  if (Loaded) return true;
  Loaded = true;

  if (g_context.isNull()) init_thread_locals();
  ClassInfo::Load();

  // load extension functions first, so system/php may call them
  ImportExtFunctions(ar, ClassInfo::GetSystem());

  ConstantTablePtr cns = ar->getConstants();
  // load extension constants, classes and dynamics
  ImportNativeConstants(ar, cns);
  ImportExtConstants(ar, cns, ClassInfo::GetSystem());
  ImportExtClasses(ar);

  Array constants = ClassInfo::GetSystemConstants();
  LocationPtr loc(new Location);
  for (ArrayIter it = constants.begin(); it; ++it) {
    CVarRef key = it.first();
    if (!key.isString()) continue;
    std::string name = key.toCStrRef().data();
    if (cns->getSymbol(name)) continue;
    if (name == "true" || name == "false" || name == "null") continue;
    CVarRef value = it.secondRef();
    if (!value.isInitialized() || value.isObject()) continue;
    ExpressionPtr e = Expression::MakeScalarExpression(ar, ar, loc, value);
    TypePtr t =
      value.isNull()    ? Type::Null    :
      value.isBoolean() ? Type::Boolean :
      value.isInteger() ? Type::Int64   :
      value.isDouble()  ? Type::Double  :
      value.isArray()   ? Type::Array   : Type::Variant;

    cns->add(key.toCStrRef().data(), t, e, ar, e);
  }
  for (int i = 0, n = NumGlobalNames(); i < n; ++i) {
    ar->getVariables()->add(GlobalNames[i], Type::Variant, false, ar,
                            ConstructPtr(), ModifierExpressionPtr());
  }

  cns->setDynamic(ar, "PHP_BINARY", true);
  cns->setDynamic(ar, "PHP_BINDIR", true);
  cns->setDynamic(ar, "PHP_OS", true);
  cns->setDynamic(ar, "PHP_SAPI", true);
  cns->setDynamic(ar, "SID", true);

  // Systemlib files were all parsed by hphp_process_init

  const StringToFileScopePtrMap &files = ar->getAllFiles();
  for (const auto& file : files) {
    file.second->setSystem();

    const auto& classes = file.second->getClasses();
    for (const auto& clsVec : classes) {
      assert(clsVec.second.size() == 1);
      auto cls = clsVec.second[0];
      cls->setSystem();
      ar->addSystemClass(cls);
      for (const auto& func : cls->getFunctions()) {
        FunctionScope::RecordFunctionInfo(func.first, func.second);
      }
    }

    const auto& functions = file.second->getFunctions();
    for (const auto& func : functions) {
      func.second->setSystem();
      ar->addSystemFunction(func.second);
      FunctionScope::RecordFunctionInfo(func.first, func.second);
    }
  }

  return true;
}

bool WddxPacket::recursiveAddVarImpl(const String& varName,
                                     const Variant& varVariant,
                                     bool hasVarTag,
                                     SeenContainers& seen) {
  bool isArray = varVariant.isArray();
  bool isObject = varVariant.isObject();

  if (isArray || isObject) {
    Array varAsArray;
    Object varAsObject;
    ArrayOrObject ptr;
    if (isArray) {
      varAsArray = varVariant.toArray();
      ptr = varAsArray.get();
    }
    if (isObject) {
      varAsObject = varVariant.toObject();
      varAsArray = varAsObject.toArray();
      ptr = varAsObject.get();
    }
    assert(!ptr.isNull());
    if (!seen.emplace(ptr).second) {
      raise_warning("recursion detected");
      return false;
    }
    SCOPE_EXIT { seen.erase(ptr); };

    if (hasVarTag) {
      m_packetString.append("<var name='");
      m_packetString.append(varName.data());
      m_packetString.append("'>");
    }

    int length = varAsArray.length();
    if (length > 0) {
      ArrayIter it = ArrayIter(varAsArray);
      if (it.first().isString()) isObject = true;
      if (isObject) {
        m_packetString.append("<struct>");
        if (!isArray) {
          m_packetString.append("<var name='php_class_name'><string>");
          m_packetString.append(varAsObject->getClassName());
          m_packetString.append("</string></var>");
        }
      } else {
        m_packetString.append("<array length='");
        m_packetString.append(std::to_string(length));
        m_packetString.append("'>");
      }
      for (; it; ++it) {
        auto key = it.first();
        auto const& value = it.secondRef();
        recursiveAddVarImpl(key.toString(), value, isObject, seen);
      }
      if (isObject) {
        m_packetString.append("</struct>");
      }
      else {
        m_packetString.append("</array>");
      }
    }
    else {
      //empty object
      if (isObject) {
        m_packetString.append("<struct>");
        if (!isArray) {
          m_packetString.append("<var name='php_class_name'><string>");
          m_packetString.append(varAsObject->getClassName());
          m_packetString.append("</string></var>");
        }
        m_packetString.append("</struct>");
      }
    }
    if (hasVarTag) {
      m_packetString.append("</var>");
    }
    return true;
  }

bool BuiltinSymbols::Load(AnalysisResultPtr ar, bool extOnly /* = false */) {
  if (Loaded) return true;
  Loaded = true;

  if (g_context.isNull()) init_thread_locals();
  ClassInfo::Load();

  // load extension functions first, so system/classes may call them
  ImportExtFunctions(ar, s_functions, ClassInfo::GetSystem());
  AnalysisResultPtr ar2 = AnalysisResultPtr(new AnalysisResult());
  s_variables = VariableTablePtr(new VariableTable(*ar2.get()));
  s_constants = ConstantTablePtr(new ConstantTable(*ar2.get()));

  // parse all PHP files under system/classes
  if (!extOnly) {
    ar = AnalysisResultPtr(new AnalysisResult());
    ar->loadBuiltinFunctions();
    string slib = get_systemlib();

    Scanner scanner(slib.c_str(), slib.size(),
                    Option::ScannerType, "systemlib.php");
    Compiler::Parser parser(scanner, "systemlib.php", ar);
    if (!parser.parse()) {
      Logger::Error("Unable to parse systemlib.php: %s",
                    parser.getMessage().c_str());
      assert(false);
    }

    ar->analyzeProgram(true);
    ar->inferTypes();
    const StringToFileScopePtrMap &files = ar->getAllFiles();
    for (StringToFileScopePtrMap::const_iterator iterFile = files.begin();
         iterFile != files.end(); iterFile++) {
      const StringToClassScopePtrVecMap &classes =
        iterFile->second->getClasses();
      for (StringToClassScopePtrVecMap::const_iterator iter = classes.begin();
           iter != classes.end(); ++iter) {
        assert(iter->second.size() == 1);
        iter->second[0]->setSystem();
        assert(!s_classes[iter->first]);
        s_classes[iter->first] = iter->second[0];
      }
    }
  } else {
    NoSuperGlobals = true;
  }

  // load extension constants, classes and dynamics
  ImportExtConstants(ar, s_constants, ClassInfo::GetSystem());
  ImportExtClasses(ar);

  if (!extOnly) {
    Array constants = ClassInfo::GetSystemConstants();
    LocationPtr loc(new Location);
    for (ArrayIter it = constants.begin(); it; ++it) {
      CVarRef key = it.first();
      if (!key.isString()) continue;
      std::string name = key.toCStrRef().data();
      if (s_constants->getSymbol(name)) continue;
      if (name == "true" || name == "false" || name == "null") continue;
      CVarRef value = it.secondRef();
      if (!value.isInitialized() || value.isObject()) continue;
      ExpressionPtr e = Expression::MakeScalarExpression(ar2, ar2, loc, value);
      TypePtr t =
        value.isNull()    ? Type::Null    :
        value.isBoolean() ? Type::Boolean :
        value.isInteger() ? Type::Int64   :
        value.isDouble()  ? Type::Double  :
        value.isArray()   ? Type::Array   : Type::Variant;

      s_constants->add(key.toCStrRef().data(), t, e, ar2, e);
    }
    s_variables = ar2->getVariables();
    for (int i = 0, n = NumGlobalNames(); i < n; ++i) {
      s_variables->add(GlobalNames[i], Type::Variant, false, ar,
                       ConstructPtr(), ModifierExpressionPtr());
    }
  }
  s_constants->setDynamic(ar, "SID", true);

  return true;
}