A lot of comments in LLDB are surrounded by an ASCII line to delimit the begging and end of the comment. Its use is not really consistent across the code base, sometimes the lines are longer, sometimes they are shorter and sometimes they are omitted. Furthermore, it looks kind of weird with the 80 column limit, where the comment actually extends past the line, but not by much. Furthermore, when /// is used for Doxygen comments, it looks particularly odd. And when // is used, it incorrectly gives the impression that it's actually a Doxygen comment. I assume these lines were added to improve distinguishing between comments and code. However, given that todays editors and IDEs do a great job at highlighting comments, I think it's worth to drop this for the sake of consistency. The alternative is fixing all the inconsistencies, which would create a lot more churn. Differential revision: https://reviews.llvm.org/D60508 llvm-svn: 358135
137 lines
4.2 KiB
C++
137 lines
4.2 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 liblldb_CPlusPlusLanguage_h_
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#define liblldb_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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m_parsed(false), m_parse_error(false) {}
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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;
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bool m_parse_error;
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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 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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static bool IsCPPMangledName(const char *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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// Given a mangled function name, calculates some alternative manglings since
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// the compiler mangling may not line up with the symbol we are expecting
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static uint32_t
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FindAlternateFunctionManglings(const ConstString mangled,
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std::set<ConstString> &candidates);
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// PluginInterface protocol
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ConstString GetPluginName() override;
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uint32_t GetPluginVersion() override;
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};
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} // namespace lldb_private
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#endif // liblldb_CPlusPlusLanguage_h_
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