| import lldb |
| |
| |
| @lldb.synthetic("MyContainer") |
| class MyContainerSynthetic: |
| """Formatter that mimicks libstdc++ std::vector use of CreateChildAtOffset.""" |
| |
| valobj: lldb.SBValue |
| |
| def __init__(self, valobj: lldb.SBValue, _) -> None: |
| self.valobj = valobj |
| |
| def update(self) -> bool: |
| self.data = self.valobj.GetChildMemberWithName("data") |
| self.element_type = self.data.GetType().GetPointeeType() |
| self.element_size = self.element_type.GetByteSize() |
| self.count = self.valobj.GetChildMemberWithName("count").GetValueAsUnsigned(0) |
| return True |
| |
| def num_children(self) -> int: |
| return self.count |
| |
| def get_child_at_index(self, index: int) -> lldb.SBValue: |
| if 0 <= index < self.count: |
| offset = index * self.element_size |
| return self.data.CreateChildAtOffset( |
| f"[{index}]", offset, self.element_type |
| ) |
| return lldb.SBValue() |
