lldb/test/API/functionalities/data-formatter/data-formatter-python-synth/fooSynthProvider.py

import lldb


class fooSynthProvider:
    def __init__(self, valobj, dict):
        self.valobj = valobj
        self.int_type = valobj.GetType().GetBasicType(lldb.eBasicTypeInt)

    def num_children(self):
        return 3

    def get_child_at_index(self, index):
        if index == 0:
            child = self.valobj.GetChildMemberWithName("a")
        if index == 1:
            child = self.valobj.CreateChildAtOffset("fake_a", 1, self.int_type)
        if index == 2:
            child = self.valobj.GetChildMemberWithName("r")
        return child

    def get_child_index(self, name):
        if name == "a":
            return 0
        if name == "fake_a":
            return 1
        return 2

    def update(self):
        return True


class wrapfooSynthProvider:
    def __init__(self, valobj, dict):
        self.valobj = valobj

    def num_children(self):
        return 1

    def get_child_at_index(self, index):
        if index == 0:
            return self.valobj.GetChildMemberWithName("ptr")
        if index == 1:
            return self.valobj.GetChildMemberWithName("ptr").Dereference()
        return None

    def get_child_index(self, name):
        if name == "ptr":
            return 0
        if name == "$$dereference$$":
            return 1
        return -1

    def update(self):
        return True