1 files changed, 178 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h b/contrib/llvm-project/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
new file mode 100644
index 000000000000..623d481bf117
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
@@ -0,0 +1,178 @@
+//===-- 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;
+  }
+
+  llvm::StringRef GetUserEntryPointName() const override { return "main"; }
+
+  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;
+
+  llvm::StringRef GetInstanceVariableName() override { return "this"; }
+
+  // PluginInterface protocol
+  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
+};
+
+} // namespace lldb_private
+
+#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_CPLUSPLUSLANGUAGE_H