Add a new type of plugin: Language plugin

The Language plugin is menat to answer language-specific questions that are not bound to the existence of a process. Those are still the domain of the LanguageRuntime plugin

The Language plugin will, instead, answer questions such as providing language-specific data formatters or expression evaluation

At the moment, the interface is hollowed out, and empty do-nothing plugins have been setup for ObjC, C++ and ObjC++

llvm-svn: 246212

11 files changed, 414 insertions, 0 deletions

diff --git a/lldb/source/Plugins/CMakeLists.txt b/lldb/source/Plugins/CMakeLists.txt
index 67ae85de81e..f138eeeeec2 100644
--- a/lldb/source/Plugins/CMakeLists.txt
+++ b/lldb/source/Plugins/CMakeLists.txt
@@ -4,6 +4,7 @@ add_subdirectory(DynamicLoader)
 add_subdirectory(Instruction)
 add_subdirectory(InstrumentationRuntime)
 add_subdirectory(JITLoader)
+add_subdirectory(Language)
 add_subdirectory(LanguageRuntime)
 add_subdirectory(MemoryHistory)
 add_subdirectory(ObjectContainer)
diff --git a/lldb/source/Plugins/Language/CMakeLists.txt b/lldb/source/Plugins/Language/CMakeLists.txt
new file mode 100644
index 00000000000..034ae1545ae
--- /dev/null
+++ b/lldb/source/Plugins/Language/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_subdirectory(CPlusPlus)
+add_subdirectory(ObjC)
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt b/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt
new file mode 100644
index 00000000000..ae6b1c8c280
--- /dev/null
+++ b/lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt
@@ -0,0 +1,5 @@
+set(LLVM_NO_RTTI 1)
+
+add_lldb_library(lldbPluginCPlusPlusLanguage
+  CPlusPlusLanguage.cpp
+)
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
new file mode 100644
index 00000000000..a0291462a6e
--- /dev/null
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -0,0 +1,71 @@
+//===-- CPlusPlusLanguage.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CPlusPlusLanguage.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+void
+CPlusPlusLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "C++ Language",
+                                   CreateInstance);
+}
+
+void
+CPlusPlusLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+CPlusPlusLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("cplusplus");
+    return g_name;
+}
+
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+CPlusPlusLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+CPlusPlusLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+CPlusPlusLanguage::CreateInstance (lldb::LanguageType language)
+{
+    switch (language)
+    {
+        case lldb::eLanguageTypeC_plus_plus:
+        case lldb::eLanguageTypeC_plus_plus_03:
+        case lldb::eLanguageTypeC_plus_plus_11:
+        case lldb::eLanguageTypeC_plus_plus_14:
+            return new CPlusPlusLanguage();
+        default:
+            return nullptr;
+    }
+}
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
new file mode 100644
index 00000000000..62a92a62c07
--- /dev/null
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
@@ -0,0 +1,63 @@
+//===-- CPlusPlusLanguage.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_CPlusPlusLanguage_h_
+#define liblldb_CPlusPlusLanguage_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class CPlusPlusLanguage :
+    public Language
+{
+public:
+    virtual ~CPlusPlusLanguage() = default;
+    
+    CPlusPlusLanguage () = default;
+    
+    lldb::LanguageType
+    GetLanguageType () const
+    {
+        return lldb::eLanguageTypeC_plus_plus;
+    }
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    virtual ConstString
+    GetPluginName();
+    
+    virtual uint32_t
+    GetPluginVersion();
+};
+    
+} // namespace lldb_private
+
+#endif  // liblldb_CPlusPlusLanguage_h_
diff --git a/lldb/source/Plugins/Language/ObjC/CMakeLists.txt b/lldb/source/Plugins/Language/ObjC/CMakeLists.txt
new file mode 100644
index 00000000000..af4cc0692d4
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjC/CMakeLists.txt
@@ -0,0 +1,5 @@
+set(LLVM_NO_RTTI 1)
+
+add_lldb_library(lldbPluginAppleObjCLanguage
+  AppleObjCLanguage.cpp
+)
diff --git a/lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
new file mode 100644
index 00000000000..8f21c46bfe3
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
@@ -0,0 +1,68 @@
+//===-- ObjCLanguage.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ObjCLanguage.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+void
+ObjCLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "Objective-C Language",
+                                   CreateInstance);
+}
+
+void
+ObjCLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+ObjCLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("objc");
+    return g_name;
+}
+
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+ObjCLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ObjCLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+ObjCLanguage::CreateInstance (lldb::LanguageType language)
+{
+    switch (language)
+    {
+        case lldb::eLanguageTypeObjC:
+            return new ObjCLanguage();
+        default:
+            return nullptr;
+    }
+}
diff --git a/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h
new file mode 100644
index 00000000000..3a43972f3f0
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h
@@ -0,0 +1,63 @@
+//===-- ObjCLanguage.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ObjCLanguage_h_
+#define liblldb_ObjCLanguage_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class ObjCLanguage :
+    public Language
+{
+public:
+    virtual ~ObjCLanguage() = default;
+    
+    ObjCLanguage () = default;
+    
+    lldb::LanguageType
+    GetLanguageType () const
+    {
+        return lldb::eLanguageTypeObjC;
+    }
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    virtual ConstString
+    GetPluginName();
+    
+    virtual uint32_t
+    GetPluginVersion();
+};
+    
+} // namespace lldb_private
+
+#endif  // liblldb_ObjCLanguage_h_
diff --git a/lldb/source/Plugins/Language/ObjCPlusPlus/CMakeLists.txt b/lldb/source/Plugins/Language/ObjCPlusPlus/CMakeLists.txt
new file mode 100644
index 00000000000..fb599faeffc
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjCPlusPlus/CMakeLists.txt
@@ -0,0 +1,5 @@
+set(LLVM_NO_RTTI 1)
+
+add_lldb_library(lldbPluginObjCPlusPlusLanguage
+  ObjCPlusPlusLanguage.cpp
+)
diff --git a/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp b/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp
new file mode 100644
index 00000000000..62ddafefad9
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.cpp
@@ -0,0 +1,68 @@
+//===-- ObjCPlusPlusLanguage.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ObjCPlusPlusLanguage.h"
+
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/PluginManager.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+void
+ObjCPlusPlusLanguage::Initialize()
+{
+    PluginManager::RegisterPlugin (GetPluginNameStatic(),
+                                   "Objective-C++ Language",
+                                   CreateInstance);
+}
+
+void
+ObjCPlusPlusLanguage::Terminate()
+{
+    PluginManager::UnregisterPlugin (CreateInstance);
+}
+
+lldb_private::ConstString
+ObjCPlusPlusLanguage::GetPluginNameStatic()
+{
+    static ConstString g_name("objcplusplus");
+    return g_name;
+}
+
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+lldb_private::ConstString
+ObjCPlusPlusLanguage::GetPluginName()
+{
+    return GetPluginNameStatic();
+}
+
+uint32_t
+ObjCPlusPlusLanguage::GetPluginVersion()
+{
+    return 1;
+}
+
+//------------------------------------------------------------------
+// Static Functions
+//------------------------------------------------------------------
+Language *
+ObjCPlusPlusLanguage::CreateInstance (lldb::LanguageType language)
+{
+    switch (language)
+    {
+        case lldb::eLanguageTypeObjC_plus_plus:
+            return new ObjCPlusPlusLanguage();
+        default:
+            return nullptr;
+    }
+}
diff --git a/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h b/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h
new file mode 100644
index 00000000000..67be5109b27
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjCPlusPlus/ObjCPlusPlusLanguage.h
@@ -0,0 +1,63 @@
+//===-- ObjCPlusPlusLanguage.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_ObjCPlusPlusLanguage_h_
+#define liblldb_ObjCPlusPlusLanguage_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Target/Language.h"
+
+namespace lldb_private {
+    
+class ObjCPlusPlusLanguage :
+    public Language
+{
+public:
+    virtual ~ObjCPlusPlusLanguage() = default;
+    
+    ObjCPlusPlusLanguage () = default;
+    
+    lldb::LanguageType
+    GetLanguageType () const
+    {
+        return lldb::eLanguageTypeObjC_plus_plus;
+    }
+    
+    //------------------------------------------------------------------
+    // Static Functions
+    //------------------------------------------------------------------
+    static void
+    Initialize();
+    
+    static void
+    Terminate();
+    
+    static lldb_private::Language *
+    CreateInstance (lldb::LanguageType language);
+    
+    static lldb_private::ConstString
+    GetPluginNameStatic();
+    
+    //------------------------------------------------------------------
+    // PluginInterface protocol
+    //------------------------------------------------------------------
+    virtual ConstString
+    GetPluginName();
+    
+    virtual uint32_t
+    GetPluginVersion();
+};
+    
+} // namespace lldb_private
+
+#endif  // liblldb_CPlusPlusLanguage_h_