a65f6aafe2
I have 2 goals with this change: 1. Disambiguate between CPlusPlus::FindAlternateFunctionManglings and IRExecutionUnit::FindBestAlternateMangledName. These are named very similar things, they try to do very similar things, but their approaches are different. This change should make it clear that one is generating possible alternate manglings (through some heuristics-based approach) and the other is finding alternate manglings (through searching the SymbolFile for potential matches). 2. Change GenerateAlternateFunctionManglings from a static method in CPlusPlusLanguage to a virtual method in Language. This will allow us to remove a direct use of CPlusPlusLanguage in IRExecutionUnit, further pushing it to be more general. This change doesn't meet this goal completely but allows for it to happen later. Though this doesn't remove IRExecutionUnit's dependency on CPlusPlusLanguage, it does bring us closer to that goal. Differential Revision: https://reviews.llvm.org/D109785
140 lines
4.3 KiB
C++
140 lines
4.3 KiB
C++
//===-- 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 lldb_private::ConstString GetPluginNameStatic();
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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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// PluginInterface protocol
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ConstString GetPluginName() override;
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};
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} // namespace lldb_private
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#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
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