C++ Dictionary::GetValueForKeyAsArray方法代码示例

SearchFilterSP SearchFilterByModule::CreateFromStructuredData(
    Target &target, const StructuredData::Dictionary &data_dict,
    Status &error) {
  StructuredData::Array *modules_array;
  bool success = data_dict.GetValueForKeyAsArray(GetKey(OptionNames::ModList),
                                                 modules_array);
  if (!success) {
    error.SetErrorString("SFBM::CFSD: Could not find the module list key.");
    return nullptr;
  }

  size_t num_modules = modules_array->GetSize();
  if (num_modules > 1) {
    error.SetErrorString(
        "SFBM::CFSD: Only one modules allowed for SearchFilterByModule.");
    return nullptr;
  }

  llvm::StringRef module;
  success = modules_array->GetItemAtIndexAsString(0, module);
  if (!success) {
    error.SetErrorString("SFBM::CFSD: filter module item not a string.");
    return nullptr;
  }
  FileSpec module_spec(module);

  return std::make_shared<SearchFilterByModule>(target.shared_from_this(),
                                                module_spec);
}

size_t
DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict, ByteOrder byte_order)
{
    assert(!m_finalized);
    StructuredData::Array *sets = nullptr;
    if (dict.GetValueForKeyAsArray("sets", sets))
    {
        const uint32_t num_sets = sets->GetSize();
        for (uint32_t i=0; i<num_sets; ++i)
        {
            std::string set_name_str;
            ConstString set_name;
            if (sets->GetItemAtIndexAsString(i, set_name_str))
                set_name.SetCString(set_name_str.c_str());
            if (set_name)
            {
                RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL };
                m_sets.push_back (new_set);
            }
            else
            {
                Clear();
                printf("error: register sets must have valid names\n");
                return 0;
            }
        }
        m_set_reg_nums.resize(m_sets.size());
    }
    StructuredData::Array *regs = nullptr;
    if (!dict.GetValueForKeyAsArray("registers", regs))
        return 0;

    const uint32_t num_regs = regs->GetSize();
//        typedef std::map<std::string, std::vector<std::string> > InvalidateNameMap;
//        InvalidateNameMap invalidate_map;
    for (uint32_t i = 0; i < num_regs; ++i)
    {
        StructuredData::Dictionary *reg_info_dict = nullptr;
        if (!regs->GetItemAtIndexAsDictionary(i, reg_info_dict))
        {
            Clear();
            printf("error: items in the 'registers' array must be dictionaries\n");
            regs->DumpToStdout();
            return 0;
        }

        // { 'name':'rcx'       , 'bitsize' :  64, 'offset' :  16, 'encoding':'uint'  , 'format':'hex'         , 'set': 0, 'gcc' : 2,
        // 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', },
        RegisterInfo reg_info;
        std::vector<uint32_t> value_regs;
        std::vector<uint32_t> invalidate_regs;
        memset(&reg_info, 0, sizeof(reg_info));

        ConstString name_val;
        ConstString alt_name_val;
        if (!reg_info_dict->GetValueForKeyAsString("name", name_val, nullptr))
        {
            Clear();
            printf("error: registers must have valid names and offsets\n");
            reg_info_dict->DumpToStdout();
            return 0;
        }
        reg_info.name = name_val.GetCString();
        reg_info_dict->GetValueForKeyAsString("alt-name", alt_name_val, nullptr);
        reg_info.alt_name = alt_name_val.GetCString();

        reg_info_dict->GetValueForKeyAsInteger("offset", reg_info.byte_offset, UINT32_MAX);

        if (reg_info.byte_offset == UINT32_MAX)
        {
            // No offset for this register, see if the register has a value expression
            // which indicates this register is part of another register. Value expressions
            // are things like "rax[31:0]" which state that the current register's value
            // is in a concrete register "rax" in bits 31:0. If there is a value expression
            // we can calculate the offset
            bool success = false;
            std::string slice_str;
            if (reg_info_dict->GetValueForKeyAsString("slice", slice_str, nullptr))
            {
                // Slices use the following format:
                //  REGNAME[MSBIT:LSBIT]
                // REGNAME - name of the register to grab a slice of
                // MSBIT - the most significant bit at which the current register value starts at
                // LSBIT - the least significant bit at which the current register value ends at
                static RegularExpression g_bitfield_regex("([A-Za-z_][A-Za-z0-9_]*)\\[([0-9]+):([0-9]+)\\]");
                RegularExpression::Match regex_match(3);
                if (g_bitfield_regex.Execute(slice_str.c_str(), &regex_match))
                {
                    llvm::StringRef reg_name_str;
                    std::string msbit_str;
                    std::string lsbit_str;
                    if (regex_match.GetMatchAtIndex(slice_str.c_str(), 1, reg_name_str) &&
                        regex_match.GetMatchAtIndex(slice_str.c_str(), 2, msbit_str) &&
                        regex_match.GetMatchAtIndex(slice_str.c_str(), 3, lsbit_str))
                    {
                        const uint32_t msbit = StringConvert::ToUInt32(msbit_str.c_str(), UINT32_MAX);
                        const uint32_t lsbit = StringConvert::ToUInt32(lsbit_str.c_str(), UINT32_MAX);
                        if (msbit != UINT32_MAX && lsbit != UINT32_MAX)
                        {
                            if (msbit > lsbit)
//.........这里部分代码省略.........