Merge lldb r188801 to contrib/llvm/tools/lldb/

1 files changed, 163 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCallbacks.cpp b/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCallbacks.cpp
new file mode 100644
index 0000000..b2328d6
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCallbacks.cpp
@@ -0,0 +1,163 @@
+//===-- ClangExternalASTSourceCallbacks.cpp ---------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+
+// Clang headers like to use NDEBUG inside of them to enable/disable debug 
+// releated features using "#ifndef NDEBUG" preprocessor blocks to do one thing
+// or another. This is bad because it means that if clang was built in release
+// mode, it assumes that you are building in release mode which is not always
+// the case. You can end up with functions that are defined as empty in header
+// files when NDEBUG is not defined, and this can cause link errors with the
+// clang .a files that you have since you might be missing functions in the .a
+// file. So we have to define NDEBUG when including clang headers to avoid any
+// mismatches. This is covered by rdar://problem/8691220
+
+#if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF)
+#define LLDB_DEFINED_NDEBUG_FOR_CLANG
+#define NDEBUG
+// Need to include assert.h so it is as clang would expect it to be (disabled)
+#include <assert.h>
+#endif
+
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclarationName.h"
+
+#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
+#undef NDEBUG
+#undef LLDB_DEFINED_NDEBUG_FOR_CLANG
+// Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
+#include <assert.h>
+#endif
+
+#include "lldb/Core/Log.h"
+
+using namespace clang;
+using namespace lldb_private;
+
+bool
+ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName 
+(
+    const clang::DeclContext *decl_ctx,
+    clang::DeclarationName clang_decl_name
+)
+{
+    if (m_callback_find_by_name)
+    {
+        llvm::SmallVector <clang::NamedDecl *, 3> results;
+        
+        m_callback_find_by_name (m_callback_baton, decl_ctx, clang_decl_name, &results);
+        
+        SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, results);
+        
+        return (results.size() != 0);
+    }
+        
+    std::string decl_name (clang_decl_name.getAsString());
+
+    switch (clang_decl_name.getNameKind()) {
+    // Normal identifiers.
+    case clang::DeclarationName::Identifier:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"Identifier\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        if (clang_decl_name.getAsIdentifierInfo()->getBuiltinID() != 0)
+        {
+            SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+            return false;
+        }
+        break;
+
+    case clang::DeclarationName::ObjCZeroArgSelector:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCZeroArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::ObjCOneArgSelector:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCOneArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::ObjCMultiArgSelector:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCMultiArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::CXXConstructorName:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConstructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+
+    case clang::DeclarationName::CXXDestructorName:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXDestructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::CXXConversionFunctionName:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConversionFunctionName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::CXXOperatorName:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::CXXLiteralOperatorName:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXLiteralOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+
+    case clang::DeclarationName::CXXUsingDirective:
+        //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXUsingDirective\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
+        SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+        return false;
+    }
+
+    SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
+    return false;
+}
+
+void
+ClangExternalASTSourceCallbacks::CompleteType (TagDecl *tag_decl)
+{
+    if (m_callback_tag_decl)
+        m_callback_tag_decl (m_callback_baton, tag_decl);
+}
+
+void
+ClangExternalASTSourceCallbacks::CompleteType (ObjCInterfaceDecl *objc_decl)
+{
+    if (m_callback_objc_decl)
+        m_callback_objc_decl (m_callback_baton, objc_decl);
+}
+
+bool 
+ClangExternalASTSourceCallbacks::layoutRecordType(const clang::RecordDecl *Record,
+                                                  uint64_t &Size, 
+                                                  uint64_t &Alignment,
+                                                  llvm::DenseMap <const clang::FieldDecl *, uint64_t> &FieldOffsets,
+                                                  llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &BaseOffsets,
+                                                  llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &VirtualBaseOffsets)
+{
+    if (m_callback_layout_record_type)
+        return m_callback_layout_record_type(m_callback_baton,
+                                             Record,
+                                             Size, 
+                                             Alignment, 
+                                             FieldOffsets, 
+                                             BaseOffsets, 
+                                             VirtualBaseOffsets);
+    
+    return false;
+}
+