Coverage Report

Created: 2022-01-18 06:27

/Users/buildslave/jenkins/workspace/coverage/llvm-project/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
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//===-- CPlusPlusLanguage.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_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
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#define LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
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#include <set>
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#include <vector>
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#include "llvm/ADT/StringRef.h"
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#include "Plugins/Language/ClangCommon/ClangHighlighter.h"
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#include "lldb/Target/Language.h"
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#include "lldb/Utility/ConstString.h"
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#include "lldb/lldb-private.h"
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namespace lldb_private {
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class CPlusPlusLanguage : public Language {
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  ClangHighlighter m_highlighter;
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public:
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  class MethodName {
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  public:
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    MethodName()
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        : m_full(), m_basename(), m_context(), m_arguments(), m_qualifiers() {}
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    MethodName(ConstString s)
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        : m_full(s), m_basename(), m_context(), m_arguments(), m_qualifiers(),
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          m_parsed(false), m_parse_error(false) {}
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    void Clear();
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    bool IsValid() {
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      if (!m_parsed)
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        Parse();
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      if (m_parse_error)
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        return false;
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      return (bool)m_full;
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    }
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    ConstString GetFullName() const { return m_full; }
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    std::string GetScopeQualifiedName();
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    llvm::StringRef GetBasename();
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    llvm::StringRef GetContext();
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    llvm::StringRef GetArguments();
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    llvm::StringRef GetQualifiers();
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  protected:
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    void Parse();
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    bool TrySimplifiedParse();
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    ConstString m_full; // Full name:
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                        // "lldb::SBTarget::GetBreakpointAtIndex(unsigned int)
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                        // const"
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    llvm::StringRef m_basename;   // Basename:     "GetBreakpointAtIndex"
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    llvm::StringRef m_context;    // Decl context: "lldb::SBTarget"
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    llvm::StringRef m_arguments;  // Arguments:    "(unsigned int)"
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    llvm::StringRef m_qualifiers; // Qualifiers:   "const"
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    bool m_parsed = false;
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    bool m_parse_error = false;
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  };
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  CPlusPlusLanguage() = default;
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  ~CPlusPlusLanguage() override = default;
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  lldb::LanguageType GetLanguageType() const override {
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    return lldb::eLanguageTypeC_plus_plus;
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  }
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  std::unique_ptr<TypeScavenger> GetTypeScavenger() override;
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  lldb::TypeCategoryImplSP GetFormatters() override;
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  HardcodedFormatters::HardcodedSummaryFinder GetHardcodedSummaries() override;
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  HardcodedFormatters::HardcodedSyntheticFinder
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  GetHardcodedSynthetics() override;
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  bool IsNilReference(ValueObject &valobj) override;
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  llvm::StringRef GetNilReferenceSummaryString() override { return "nullptr"; }
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  bool IsSourceFile(llvm::StringRef file_path) const override;
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  const Highlighter *GetHighlighter() const override { return &m_highlighter; }
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  // Static Functions
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  static void Initialize();
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  static void Terminate();
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  static lldb_private::Language *CreateInstance(lldb::LanguageType language);
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  static llvm::StringRef GetPluginNameStatic() { return "cplusplus"; }
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  bool SymbolNameFitsToLanguage(Mangled mangled) const override;
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  ConstString
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  GetDemangledFunctionNameWithoutArguments(Mangled mangled) const override;
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  static bool IsCPPMangledName(llvm::StringRef name);
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  // Extract C++ context and identifier from a string using heuristic matching
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  // (as opposed to
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  // CPlusPlusLanguage::MethodName which has to have a fully qualified C++ name
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  // with parens and arguments.
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  // If the name is a lone C identifier (e.g. C) or a qualified C identifier
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  // (e.g. A::B::C) it will return true,
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  // and identifier will be the identifier (C and C respectively) and the
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  // context will be "" and "A::B" respectively.
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  // If the name fails the heuristic matching for a qualified or unqualified
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  // C/C++ identifier, then it will return false
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  // and identifier and context will be unchanged.
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  static bool ExtractContextAndIdentifier(const char *name,
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                                          llvm::StringRef &context,
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                                          llvm::StringRef &identifier);
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  std::vector<ConstString>
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  GenerateAlternateFunctionManglings(const ConstString mangled) const override;
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  ConstString FindBestAlternateFunctionMangledName(
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      const Mangled mangled, const SymbolContext &sym_ctx) const override;
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  // PluginInterface protocol
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  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
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};
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} // namespace lldb_private
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#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H