patch for clang.cindex

CIndex.cpp

// FIXME:
// JAL: 2013 
// TODO CXString clang_getRecordFieldOffset(CXTranslationUnit TU, CXCursor cursor, int num) {
// TODO CharUnits getAlignment()
int64_t clang_getRecordSize(CXTranslationUnit TU, CXCursor cursor) {
  assert(clang_isDeclaration(cursor.kind) && "isDeclaration == FALSE");

  assert( ((cursor.kind == CXCursor_StructDecl) or 
            (cursor.kind == CXCursor_UnionDecl) or 
            (cursor.kind == CXCursor_ClassDecl)) && "bad declaration kind");
  // get the context
  ASTUnit *CXXUnit = static_cast<ASTUnit*>(TU->TUData);
  ASTContext &context = CXXUnit->getASTContext();
  Decl *D = getCursorDecl(cursor); // RecordDecl is not Decl
  assert(D && "no cursor decl");
  assert(classof(static_cast<RecordDecl*>(D)) && "Invalid Kind, not a RecordDecl!");
  // get the layout for a record
  RecordDecl *RD = static_cast<RecordDecl*>(D);
  const ASTRecordLayout &layout = context.getASTRecordLayout(RD);
  CharUnits size = layout.getSize();
  return size.getQuantity();
}

int64_t clang_getRecordAlignement(CXTranslationUnit TU, CXCursor cursor) {
  assert(clang_isDeclaration(cursor.kind) && "isDeclaration == FALSE");

  assert( ((cursor.kind == CXCursor_StructDecl) or 
            (cursor.kind == CXCursor_UnionDecl) or 
            (cursor.kind == CXCursor_ClassDecl)) && "bad declaration kind");
  // get the context
  ASTUnit *CXXUnit = static_cast<ASTUnit*>(TU->TUData);
  ASTContext &context = CXXUnit->getASTContext();
  Decl *D = getCursorDecl(cursor); // RecordDecl is not Decl
  assert(D && "no cursor decl");
  assert(classof(static_cast<RecordDecl*>(D)) && "Invalid Kind, not a RecordDecl!");
  // get the layout for a record
  RecordDecl *RD = static_cast<RecordDecl*>(D);
  const ASTRecordLayout &layout = context.getASTRecordLayout(RD);
  CharUnits align = layout.getAlignment();
  return align.getQuantity();
}

int64_t clang_getRecordFieldOffset(CXTranslationUnit TU, CXCursor cursor) {
  assert(clang_isDeclaration(cursor.kind) && "isDeclaration == FALSE");

  assert( (cursor.kind == CXCursor_FieldDecl) && "bad declaration kind");
  // get the context
  ASTUnit *CXXUnit = static_cast<ASTUnit*>(TU->TUData);
  ASTContext &context = CXXUnit->getASTContext();
  Decl *D = getCursorDecl(cursor); // RecordDecl is not Decl
  assert(D && "no cursor decl");
  assert(classof(static_cast<FieldDecl*>(D)) && "Invalid Kind, not a FieldDecl!");
  // get the layout for a record
  FieldDecl *F = static_cast<FieldDecl*>(D);
  unsigned FieldNo = F->getFieldIndex();
  const ASTRecordLayout &layout = context.getASTRecordLayout(F->getParent());
  return layout.getFieldOffset( FieldNo );
}