contrib/llvm/tools/lldb/source/Symbol/ClangExternalASTSourceCallbacks.cpp

   1 //===-- ClangExternalASTSourceCallbacks.cpp ---------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
  11
  12 // C Includes
  13 // C++ Includes
  14 // Other libraries and framework includes
  15
  16 // Clang headers like to use NDEBUG inside of them to enable/disable debug
  17 // releated features using "#ifndef NDEBUG" preprocessor blocks to do one thing
  18 // or another. This is bad because it means that if clang was built in release
  19 // mode, it assumes that you are building in release mode which is not always
  20 // the case. You can end up with functions that are defined as empty in header
  21 // files when NDEBUG is not defined, and this can cause link errors with the
  22 // clang .a files that you have since you might be missing functions in the .a
  23 // file. So we have to define NDEBUG when including clang headers to avoid any
  24 // mismatches. This is covered by rdar://problem/8691220
  25
  26 #if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF)
  27 #define LLDB_DEFINED_NDEBUG_FOR_CLANG
  28 #define NDEBUG
  29 // Need to include assert.h so it is as clang would expect it to be (disabled)
  30 #include <assert.h>
  31 #endif
  32
  33 #include "clang/AST/DeclBase.h"
  34 #include "clang/AST/DeclarationName.h"
  35
  36 #ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
  37 #undef NDEBUG
  38 #undef LLDB_DEFINED_NDEBUG_FOR_CLANG
  39 // Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
  40 #include <assert.h>
  41 #endif
  42
  43 #include "lldb/Core/Log.h"
  44
  45 using namespace clang;
  46 using namespace lldb_private;
  47
  48 bool
  49 ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName
  50 (
  51     const clang::DeclContext *decl_ctx,
  52     clang::DeclarationName clang_decl_name
  53 )
  54 {
  55     if (m_callback_find_by_name)
  56     {
  57         llvm::SmallVector <clang::NamedDecl *, 3> results;
  58
  59         m_callback_find_by_name (m_callback_baton, decl_ctx, clang_decl_name, &results);
  60
  61         SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, results);
  62
  63         return (results.size() != 0);
  64     }
  65
  66     std::string decl_name (clang_decl_name.getAsString());
  67
  68     switch (clang_decl_name.getNameKind()) {
  69     // Normal identifiers.
  70     case clang::DeclarationName::Identifier:
  71         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"Identifier\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
  72         if (clang_decl_name.getAsIdentifierInfo()->getBuiltinID() != 0)
  73         {
  74             SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
  75             return false;
  76         }
  77         break;
  78
  79     case clang::DeclarationName::ObjCZeroArgSelector:
  80         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCZeroArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
  81         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
  82         return false;
  83
  84     case clang::DeclarationName::ObjCOneArgSelector:
  85         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCOneArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
  86         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
  87         return false;
  88
  89     case clang::DeclarationName::ObjCMultiArgSelector:
  90         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCMultiArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
  91         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
  92         return false;
  93
  94     case clang::DeclarationName::CXXConstructorName:
  95         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConstructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
  96         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
  97         return false;
  98
  99
 100     case clang::DeclarationName::CXXDestructorName:
 101         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXDestructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
 102         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 103         return false;
 104
 105     case clang::DeclarationName::CXXConversionFunctionName:
 106         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConversionFunctionName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
 107         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 108         return false;
 109
 110     case clang::DeclarationName::CXXOperatorName:
 111         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
 112         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 113         return false;
 114
 115     case clang::DeclarationName::CXXLiteralOperatorName:
 116         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXLiteralOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
 117         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 118         return false;
 119
 120     case clang::DeclarationName::CXXUsingDirective:
 121         //printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXUsingDirective\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
 122         SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 123         return false;
 124     }
 125
 126     SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
 127     return false;
 128 }
 129
 130 void
 131 ClangExternalASTSourceCallbacks::CompleteType (TagDecl *tag_decl)
 132 {
 133     if (m_callback_tag_decl)
 134         m_callback_tag_decl (m_callback_baton, tag_decl);
 135 }
 136
 137 void
 138 ClangExternalASTSourceCallbacks::CompleteType (ObjCInterfaceDecl *objc_decl)
 139 {
 140     if (m_callback_objc_decl)
 141         m_callback_objc_decl (m_callback_baton, objc_decl);
 142 }
 143
 144 bool
 145 ClangExternalASTSourceCallbacks::layoutRecordType(const clang::RecordDecl *Record,
 146                                                   uint64_t &Size,
 147                                                   uint64_t &Alignment,
 148                                                   llvm::DenseMap <const clang::FieldDecl *, uint64_t> &FieldOffsets,
 149                                                   llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &BaseOffsets,
 150                                                   llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &VirtualBaseOffsets)
 151 {
 152     if (m_callback_layout_record_type)
 153         return m_callback_layout_record_type(m_callback_baton,
 154                                              Record,
 155                                              Size,
 156                                              Alignment,
 157                                              FieldOffsets,
 158                                              BaseOffsets,
 159                                              VirtualBaseOffsets);
 160
 161     return false;
 162 }
 163