Coverage Report

Created: 2022-01-22 13:19

/Users/buildslave/jenkins/workspace/coverage/llvm-project/lldb/source/Plugins/Language/ObjC/CFBasicHash.h
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//===-- CFBasicHash.h -------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H
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#define LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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namespace lldb_private {
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class CFBasicHash {
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public:
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  enum class HashType { set = 0, dict };
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  CFBasicHash() = default;
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  ~CFBasicHash() = default;
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  bool Update(lldb::addr_t addr, ExecutionContextRef exe_ctx_rf);
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  bool IsValid() const;
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  bool IsMutable() const { return m_mutable; };
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  bool IsMultiVariant() const { return m_multi; }
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  HashType GetType() const { return m_type; }
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  size_t GetCount() const;
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  lldb::addr_t GetKeyPointer() const;
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  lldb::addr_t GetValuePointer() const;
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private:
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  template <typename T> struct __CFBasicHash {
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    struct RuntimeBase {
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      T cfisa;
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      T cfinfoa;
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    } base;
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    struct Bits {
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      uint16_t __reserved0;
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      uint16_t __reserved1 : 2;
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      uint16_t keys_offset : 1;
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      uint16_t counts_offset : 2;
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      uint16_t counts_width : 2;
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      uint16_t __reserved2 : 9;
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      uint32_t used_buckets;        // number of used buckets
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      uint64_t deleted : 16;        // number of elements deleted
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      uint64_t num_buckets_idx : 8; // index to number of buckets
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      uint64_t __reserved3 : 40;
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      uint64_t __reserved4;
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    } bits;
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    T pointers[3];
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  };
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  template <typename T> bool UpdateFor(std::unique_ptr<__CFBasicHash<T>> &m_ht);
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  size_t GetPointerCount() const;
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  uint32_t m_ptr_size = UINT32_MAX;
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  lldb::ByteOrder m_byte_order = lldb::eByteOrderInvalid;
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  Address m_address = LLDB_INVALID_ADDRESS;
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  std::unique_ptr<__CFBasicHash<uint32_t>> m_ht_32 = nullptr;
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  std::unique_ptr<__CFBasicHash<uint64_t>> m_ht_64 = nullptr;
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  ExecutionContextRef m_exe_ctx_ref;
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  bool m_mutable = true;
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  bool m_multi = false;
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  HashType m_type;
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};
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} // namespace lldb_private
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#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H