llvm-project/lldb/examples/summaries/synth.py

64 lines
1.8 KiB
Python

import lldb
class PythonObjectSyntheticChildProvider(object):
def __init__(self, value, internal_dict):
self.value = value
self.values = self.make_children()
self.built_values = {}
self.bo = self.value.target.byte_order
self.ps = self.value.target.addr_size
def make_children(self):
pass
def num_children(self):
return len(self.values)
def get_child_index(self, name):
i = 0
for N, value in self.values:
if N == name:
return i
i += 1
return None
def update(self):
pass
def has_children(self):
return len(self.values) > 0
def gen_child(self, name, value):
data = None
type = None
import six
if isinstance(value, six.integer_types):
data = lldb.SBData.CreateDataFromUInt64Array(
self.bo, self.ps, [value])
type = self.value.target.GetBasicType(lldb.eBasicTypeLong)
elif isinstance(value, float):
data = lldb.SBData.CreateDataFromDoubleArray(
self.bo, self.ps, [value])
type = self.value.target.GetBasicType(lldb.eBasicTypeDouble)
elif isinstance(value, str):
data = lldb.SBData.CreateDataFromCString(self.bo, self.ps, value)
type = self.value.target.GetBasicType(
lldb.eBasicTypeChar).GetArrayType(
len(value))
if (data is not None) and (type is not None):
return self.value.CreateValueFromData(name, data, type)
return None
def get_child_at_index(self, index):
if index in self.built_values:
return self.built_values[index]
bv = None
name, value = self.values[index]
bv = self.gen_child(name, value)
self.built_values[index] = bv
return bv