1 """ 2 LLDB Formatters for LLVM data types. 3 4 Load into LLDB with 'command script import /path/to/lldbDataFormatters.py' 5 """ 6 7 def __lldb_init_module(debugger, internal_dict): 8 debugger.HandleCommand('type category define -e llvm -l c++') 9 debugger.HandleCommand('type synthetic add -w llvm ' 10 '-l lldbDataFormatters.SmallVectorSynthProvider ' 11 '-x "^llvm::SmallVectorImpl<.+>$"') 12 debugger.HandleCommand('type synthetic add -w llvm ' 13 '-l lldbDataFormatters.SmallVectorSynthProvider ' 14 '-x "^llvm::SmallVector<.+,.+>$"') 15 16 # Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl 17 class SmallVectorSynthProvider: 18 def __init__(self, valobj, dict): 19 self.valobj = valobj; 20 self.update() # initialize this provider 21 22 def num_children(self): 23 begin = self.begin.GetValueAsUnsigned(0) 24 end = self.end.GetValueAsUnsigned(0) 25 return (end - begin)/self.type_size 26 27 def get_child_index(self, name): 28 try: 29 return int(name.lstrip('[').rstrip(']')) 30 except: 31 return -1; 32 33 def get_child_at_index(self, index): 34 # Do bounds checking. 35 if index < 0: 36 return None 37 if index >= self.num_children(): 38 return None; 39 40 offset = index * self.type_size 41 return self.begin.CreateChildAtOffset('['+str(index)+']', 42 offset, self.data_type) 43 44 def update(self): 45 self.begin = self.valobj.GetChildMemberWithName('BeginX') 46 self.end = self.valobj.GetChildMemberWithName('EndX') 47 the_type = self.valobj.GetType() 48 # If this is a reference type we have to dereference it to get to the 49 # template parameter. 50 if the_type.IsReferenceType(): 51 the_type = the_type.GetDereferencedType() 52 53 self.data_type = the_type.GetTemplateArgumentType(0) 54 self.type_size = self.data_type.GetByteSize() 55 assert self.type_size != 0 56
