| import re |
| class StdListSynthProvider: |
| |
| def __init__(self, valobj, dict): |
| self.valobj = valobj |
| self.update() |
| |
| def num_children(self): |
| next_val = self.next.GetValueAsUnsigned(0) |
| prev_val = self.prev.GetValueAsUnsigned(0) |
| # After a std::list has been initialized, both next and prev will be non-NULL |
| if next_val == 0 or prev_val == 0: |
| return 0 |
| if next_val == self.node_address: |
| return 0 |
| if next_val == prev_val: |
| return 1 |
| size = 2 |
| current = self.next |
| while current.GetChildMemberWithName('_M_next').GetValueAsUnsigned(0) != self.node_address: |
| size = size + 1 |
| current = current.GetChildMemberWithName('_M_next') |
| return (size - 1) |
| |
| def get_child_index(self,name): |
| return int(name.lstrip('[').rstrip(']')) |
| |
| def get_child_at_index(self,index): |
| if index >= self.num_children(): |
| return None; |
| offset = index |
| current = self.next |
| while offset > 0: |
| current = current.GetChildMemberWithName('_M_next') |
| offset = offset - 1 |
| return current.CreateChildAtOffset('['+str(index)+']',2*current.GetType().GetByteSize(),self.data_type) |
| |
| def extract_type_name(self,name): |
| self.type_name = name[16:] |
| index = 2 |
| count_of_template = 1 |
| while index < len(self.type_name): |
| if self.type_name[index] == '<': |
| count_of_template = count_of_template + 1 |
| elif self.type_name[index] == '>': |
| count_of_template = count_of_template - 1 |
| elif self.type_name[index] == ',' and count_of_template == 1: |
| self.type_name = self.type_name[:index] |
| break |
| index = index + 1 |
| self.type_name_nospaces = self.type_name.replace(", ", ",") |
| |
| def update(self): |
| impl = self.valobj.GetChildMemberWithName('_M_impl') |
| node = impl.GetChildMemberWithName('_M_node') |
| self.extract_type_name(impl.GetType().GetName()) |
| self.node_address = self.valobj.AddressOf().GetValueAsUnsigned(0) |
| self.next = node.GetChildMemberWithName('_M_next') |
| self.prev = node.GetChildMemberWithName('_M_prev') |
| self.data_type = node.GetTarget().FindFirstType(self.type_name) |
| # tries to fight against a difference in formatting type names between gcc and clang |
| if self.data_type.IsValid() == False: |
| self.data_type = node.GetTarget().FindFirstType(self.type_name_nospaces) |
| self.data_size = self.data_type.GetByteSize() |
