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//===-- CPlusPlusLanguage.h -------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
#define LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
#include <set>
#include <vector>
#include "llvm/ADT/StringRef.h"
#include "Plugins/Language/ClangCommon/ClangHighlighter.h"
#include "lldb/Target/Language.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/lldb-private.h"
namespace lldb_private {
class CPlusPlusLanguage : public Language {
ClangHighlighter m_highlighter;
public:
class MethodName {
public:
MethodName()
: m_full(), m_basename(), m_context(), m_arguments(), m_qualifiers() {}
MethodName(ConstString s)
: m_full(s), m_basename(), m_context(), m_arguments(), m_qualifiers(),
m_parsed(false), m_parse_error(false) {}
void Clear();
bool IsValid() {
if (!m_parsed)
Parse();
if (m_parse_error)
return false;
return (bool)m_full;
}
ConstString GetFullName() const { return m_full; }
std::string GetScopeQualifiedName();
llvm::StringRef GetBasename();
llvm::StringRef GetContext();
llvm::StringRef GetArguments();
llvm::StringRef GetQualifiers();
/// Returns the methods return-type.
///
/// Currently returns an empty llvm::StringRef
/// if the return-type is a function pointer.
llvm::StringRef GetReturnType();
bool ContainsPath(llvm::StringRef path);
private:
/// Returns the Basename of this method without a template parameter
/// list, if any.
///
// Examples:
//
// +--------------------------------+---------+
// | MethodName | Returns |
// +--------------------------------+---------+
// | void func() | func |
// | void func<int>() | func |
// | void func<std::vector<int>>() | func |
// +--------------------------------+---------+
llvm::StringRef GetBasenameNoTemplateParameters();
protected:
void Parse();
bool TrySimplifiedParse();
ConstString m_full; // Full name:
// "size_t lldb::SBTarget::GetBreakpointAtIndex(unsigned
// int) const"
llvm::StringRef m_basename; // Basename: "GetBreakpointAtIndex"
llvm::StringRef m_context; // Decl context: "lldb::SBTarget"
llvm::StringRef m_arguments; // Arguments: "(unsigned int)"
llvm::StringRef m_qualifiers; // Qualifiers: "const"
llvm::StringRef m_return_type; // Return type: "size_t"
bool m_parsed = false;
bool m_parse_error = false;
};
CPlusPlusLanguage() = default;
~CPlusPlusLanguage() override = default;
lldb::LanguageType GetLanguageType() const override {
return lldb::eLanguageTypeC_plus_plus;
}
std::unique_ptr<TypeScavenger> GetTypeScavenger() override;
lldb::TypeCategoryImplSP GetFormatters() override;
HardcodedFormatters::HardcodedSummaryFinder GetHardcodedSummaries() override;
HardcodedFormatters::HardcodedSyntheticFinder
GetHardcodedSynthetics() override;
bool IsNilReference(ValueObject &valobj) override;
llvm::StringRef GetNilReferenceSummaryString() override { return "nullptr"; }
bool IsSourceFile(llvm::StringRef file_path) const override;
const Highlighter *GetHighlighter() const override { return &m_highlighter; }
// Static Functions
static void Initialize();
static void Terminate();
static lldb_private::Language *CreateInstance(lldb::LanguageType language);
static llvm::StringRef GetPluginNameStatic() { return "cplusplus"; }
bool SymbolNameFitsToLanguage(Mangled mangled) const override;
bool DemangledNameContainsPath(llvm::StringRef path,
ConstString demangled) const override;
ConstString
GetDemangledFunctionNameWithoutArguments(Mangled mangled) const override;
bool GetFunctionDisplayName(const SymbolContext *sc,
const ExecutionContext *exe_ctx,
FunctionNameRepresentation representation,
Stream &s) override;
static bool IsCPPMangledName(llvm::StringRef name);
// Extract C++ context and identifier from a string using heuristic matching
// (as opposed to
// CPlusPlusLanguage::MethodName which has to have a fully qualified C++ name
// with parens and arguments.
// If the name is a lone C identifier (e.g. C) or a qualified C identifier
// (e.g. A::B::C) it will return true,
// and identifier will be the identifier (C and C respectively) and the
// context will be "" and "A::B" respectively.
// If the name fails the heuristic matching for a qualified or unqualified
// C/C++ identifier, then it will return false
// and identifier and context will be unchanged.
static bool ExtractContextAndIdentifier(const char *name,
llvm::StringRef &context,
llvm::StringRef &identifier);
std::vector<ConstString>
GenerateAlternateFunctionManglings(const ConstString mangled) const override;
ConstString FindBestAlternateFunctionMangledName(
const Mangled mangled, const SymbolContext &sym_ctx) const override;
ConstString GetInstanceVariableName() override { return ConstString("this"); }
// PluginInterface protocol
llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
};
} // namespace lldb_private
#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H
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