import bt2
+def _get_leaf_field(obj):
+ if type(obj) is not _VariantField:
+ return obj
+
+ return _get_leaf_field(obj.selected_field)
+
+
def _create_from_ptr(ptr):
# recreate the field type wrapper of this field's type (the identity
# could be different, but the underlying address should be the
memo[id(self)] = cpy
return cpy
+ def __eq__(self, other):
+ # special case: two unset fields with the same field type are equal
+ if isinstance(other, _Field):
+ if not self.is_set or not other.is_set:
+ if not self.is_set and not other.is_set and self.field_type == other.field_type:
+ return True
+ return False
+
+ other = _get_leaf_field(other)
+ return self._spec_eq(other)
+
@property
def field_type(self):
return self._field_type
raise TypeError("'{}' object is not a number object".format(other.__class__.__name__))
def __int__(self):
- return int(self.value)
+ return int(self._value)
def __float__(self):
- return float(self.value)
+ return float(self._value)
def __str__(self):
- return str(self.value)
+ return str(self._value)
def __lt__(self, other):
if not isinstance(other, numbers.Number):
raise TypeError('unorderable types: {}() < {}()'.format(self.__class__.__name__,
other.__class__.__name__))
- return self.value < float(other)
+ return self._value < float(other)
def __le__(self, other):
if not isinstance(other, numbers.Number):
raise TypeError('unorderable types: {}() <= {}()'.format(self.__class__.__name__,
other.__class__.__name__))
- return self.value <= float(other)
+ return self._value <= float(other)
- def __eq__(self, other):
+ def _spec_eq(self, other):
if not isinstance(other, numbers.Number):
return False
- return self.value == complex(other)
+ return self._value == complex(other)
def __rmod__(self, other):
- return self._extract_value(other) % self.value
+ return self._extract_value(other) % self._value
def __mod__(self, other):
- return self.value % self._extract_value(other)
+ return self._value % self._extract_value(other)
def __rfloordiv__(self, other):
- return self._extract_value(other) // self.value
+ return self._extract_value(other) // self._value
def __floordiv__(self, other):
- return self.value // self._extract_value(other)
+ return self._value // self._extract_value(other)
def __round__(self, ndigits=None):
if ndigits is None:
- return round(self.value)
+ return round(self._value)
else:
- return round(self.value, ndigits)
+ return round(self._value, ndigits)
def __ceil__(self):
- return math.ceil(self.value)
+ return math.ceil(self._value)
def __floor__(self):
- return math.floor(self.value)
+ return math.floor(self._value)
def __trunc__(self):
- return int(self.value)
+ return int(self._value)
def __abs__(self):
- return abs(self.value)
+ return abs(self._value)
def __add__(self, other):
- return self.value + self._extract_value(other)
+ return self._value + self._extract_value(other)
def __radd__(self, other):
return self.__add__(other)
def __neg__(self):
- return -self.value
+ return -self._value
def __pos__(self):
- return +self.value
+ return +self._value
def __mul__(self, other):
- return self.value * self._extract_value(other)
+ return self._value * self._extract_value(other)
def __rmul__(self, other):
return self.__mul__(other)
def __truediv__(self, other):
- return self.value / self._extract_value(other)
+ return self._value / self._extract_value(other)
def __rtruediv__(self, other):
- return self._extract_value(other) / self.value
+ return self._extract_value(other) / self._value
def __pow__(self, exponent):
- return self.value ** self._extract_value(exponent)
+ return self._value ** self._extract_value(exponent)
def __rpow__(self, base):
- return self._extract_value(base) ** self.value
+ return self._extract_value(base) ** self._value
def __iadd__(self, other):
self.value = self + other
class _IntegralField(_NumericField, numbers.Integral):
def __lshift__(self, other):
- return self.value << self._extract_value(other)
+ return self._value << self._extract_value(other)
def __rlshift__(self, other):
- return self._extract_value(other) << self.value
+ return self._extract_value(other) << self._value
def __rshift__(self, other):
- return self.value >> self._extract_value(other)
+ return self._value >> self._extract_value(other)
def __rrshift__(self, other):
- return self._extract_value(other) >> self.value
+ return self._extract_value(other) >> self._value
def __and__(self, other):
- return self.value & self._extract_value(other)
+ return self._value & self._extract_value(other)
def __rand__(self, other):
- return self._extract_value(other) & self.value
+ return self._extract_value(other) & self._value
def __xor__(self, other):
- return self.value ^ self._extract_value(other)
+ return self._value ^ self._extract_value(other)
def __rxor__(self, other):
- return self._extract_value(other) ^ self.value
+ return self._extract_value(other) ^ self._value
def __or__(self, other):
- return self.value | self._extract_value(other)
+ return self._value | self._extract_value(other)
def __ror__(self, other):
- return self._extract_value(other) | self.value
+ return self._extract_value(other) | self._value
def __invert__(self):
- return ~self.value
+ return ~self._value
def __ilshift__(self, other):
self.value = self << other
return value
@property
- def value(self):
+ def _value(self):
if self.field_type.is_signed:
ret, value = native_bt.ctf_field_signed_integer_get_value(self._ptr)
else:
ret, value = native_bt.ctf_field_unsigned_integer_get_value(self._ptr)
if ret < 0:
- # field is not set
- return
+ if not self.is_set:
+ return
+
+ utils._handle_ret(ret, "cannot get integer field's value")
return value
- @value.setter
- def value(self, value):
+ def _set_value(self, value):
value = self._value_to_int(value)
if self.field_type.is_signed:
utils._handle_ret(ret, "cannot set integer field object's value")
+ value = property(fset=_set_value)
class _FloatingPointNumberField(_RealField):
_NAME = 'Floating point number'
return float(value)
@property
- def value(self):
+ def _value(self):
ret, value = native_bt.ctf_field_floating_point_get_value(self._ptr)
if ret < 0:
- # field is not set
- return
+ if not self.is_set:
+ return
+
+ utils._handle_ret(ret, "cannot get floating point number field's value")
return value
- @value.setter
- def value(self, value):
+ def _set_value(self, value):
value = self._value_to_float(value)
ret = native_bt.ctf_field_floating_point_set_value(self._ptr, value)
utils._handle_ret(ret, "cannot set floating point number field object's value")
+ value = property(fset=_set_value)
class _EnumerationField(_IntegerField):
_NAME = 'Enumeration'
assert(int_field_ptr)
return _create_from_ptr(int_field_ptr)
- @property
- def value(self):
- return self.integer_field.value
-
- @value.setter
- def value(self, value):
+ def _set_value(self, value):
self.integer_field.value = value
+ value = property(fset=_set_value)
+
+ @property
+ def _value(self):
+ return self.integer_field._value
+
@property
def mappings(self):
iter_ptr = native_bt.ctf_field_enumeration_get_mappings(self._ptr)
def _value_to_str(self, value):
if isinstance(value, self.__class__):
- value = value.value
+ value = value._value
if not isinstance(value, str):
raise TypeError("expecting a 'str' object")
return value
@property
- def value(self):
+ def _value(self):
value = native_bt.ctf_field_string_get_value(self._ptr)
-
- if value is None:
- # field is not set
- return
-
return value
- @value.setter
- def value(self, value):
+ def _set_value(self, value):
value = self._value_to_str(value)
ret = native_bt.ctf_field_string_set_value(self._ptr, value)
utils._handle_ret(ret, "cannot set string field object's value")
- def __eq__(self, other):
+ value = property(fset=_set_value)
+
+ def _spec_eq(self, other):
try:
other = self._value_to_str(other)
except:
return False
- return self.value == other
+ return self._value == other
def __le__(self, other):
- return self.value <= self._value_to_str(other)
+ return self._value <= self._value_to_str(other)
def __lt__(self, other):
- return self.value < self._value_to_str(other)
+ return self._value < self._value_to_str(other)
def __bool__(self):
- return bool(self.value)
+ return bool(self._value)
def __str__(self):
- return self.value
+ return self._value
def __getitem__(self, index):
- return self.value[index]
+ return self._value[index]
def __len__(self):
- return len(self.value)
+ return len(self._value)
def __iadd__(self, value):
value = self._value_to_str(value)
# same name iterator
return iter(self.field_type)
- def __eq__(self, other):
- if not isinstance(other, collections.abc.Mapping):
- return False
-
- if len(self) != len(other):
- return False
-
- for self_key, self_value in self.items():
- if self_key not in other:
+ def _spec_eq(self, other):
+ try:
+ if len(self) != len(other):
return False
- other_value = other[self_key]
+ for self_key, self_value in self.items():
+ if self_key not in other:
+ return False
- if self_value != other_value:
- return False
+ other_value = other[self_key]
- return True
+ if self_value != other_value:
+ return False
+
+ return True
+ except:
+ return False
@property
- def value(self):
- return {key: field.value for key, field in self.items()}
+ def _value(self):
+ return {key: value._value for key, value in self.items()}
- @value.setter
- def value(self, values):
- if not hasattr(type(values), '__getitem__'):
- raise TypeError('expecting a Mapping collection')
+ def _set_value(self, values):
+ original_values = self._value
- for key, value in values.items():
- self[key].value = value
+ try:
+ for key, value in values.items():
+ self[key].value = value
+ except:
+ self.value = original_values
+ raise
+ value = property(fset=_set_value)
class _VariantField(_Field):
_NAME = 'Variant'
return _create_from_ptr(field_ptr)
- def __eq__(self, other):
- if type(other) is not type(self):
- return False
-
- if self.addr == other.addr:
- return True
-
- return self.selected_field == other.selected_field
+ def _spec_eq(self, other):
+ return _get_leaf_field(self) == other
def __bool__(self):
return bool(self.selected_field)
+ @property
+ def _value(self):
+ if self.selected_field is not None:
+ return self.selected_field._value
+
+ def _set_value(self, value):
+ self.selected_field.value = value
+
+ value = property(fset=_set_value)
class _ArraySequenceField(_ContainerField, collections.abc.MutableSequence):
def __getitem__(self, index):
def insert(self, index, value):
raise NotImplementedError
- def __eq__(self, other):
- if not isinstance(other, collections.abc.Sequence):
- return False
-
- if len(self) != len(other):
- return False
-
- for self_field, other_field in zip(self, other):
- if self_field != other_field:
+ def _spec_eq(self, other):
+ try:
+ if len(self) != len(other):
return False
- return True
-
- @property
- def value(self):
- return [field.value for field in self]
-
- @value.setter
- def value(self, values):
- if not hasattr(type(values), '__iter__'):
- raise TypeError('expecting an iterable container (Sequence)')
+ for self_field, other_field in zip(self, other):
+ if self_field != other_field:
+ return False
- if len(self) != len(values):
- raise ValueError('expected length of value and field to match')
+ return True
+ except:
+ return False
- for index, value in enumerate(values):
- self[index].value = value
+ @property
+ def _value(self):
+ return [field._value for field in self]
class _ArrayField(_ArraySequenceField):
def _get_field_ptr_at_index(self, index):
return native_bt.ctf_field_array_get_field(self._ptr, index)
+ def _set_value(self, values):
+ if len(self) != len(values):
+ raise ValueError(
+ 'expected length of value and array field to match')
+
+ original_values = self._value
+ try:
+ for index, value in enumerate(values):
+ if value is not None:
+ self[index].value = value
+ else:
+ self[index].reset()
+ except:
+ self.value = original_values
+ raise
+
+ value = property(fset=_set_value)
+
class _SequenceField(_ArraySequenceField):
_NAME = 'Sequence'
def _get_field_ptr_at_index(self, index):
return native_bt.ctf_field_sequence_get_field(self._ptr, index)
+ def _set_value(self, values):
+ original_length_field = self.length_field
+ if original_length_field is not None:
+ original_values = self._value
+
+ if len(values) != self.length_field:
+ if self.length_field is not None:
+ length_ft = self.length_field.field_type
+ else:
+ length_ft = bt2.IntegerFieldType(size=64, is_signed=False)
+ self.length_field = length_ft(len(values))
+
+ try:
+ for index, value in enumerate(values):
+ if value is not None:
+ self[index].value = value
+ else:
+ self[index].reset()
+ except:
+ if original_length_field is not None:
+ self.length_field = original_length_field
+ self.value = original_values
+ else:
+ self.reset()
+ raise
+
+ value = property(fset=_set_value)
_TYPE_ID_TO_OBJ = {
native_bt.CTF_FIELD_TYPE_ID_INTEGER: _IntegerField,
comp_value = rhs
if isinstance(rhs, (bt2.fields._IntegerField, bt2.fields._FloatingPointNumberField)):
- comp_value = rhs.value
+ comp_value = copy.copy(rhs)
try:
r = op(self._def, rhs)
self.assertEqual(self._def.addr, addr_before)
def _test_unaryop_value_same(self, op):
- value_before = self._def.value
+ value_before = copy.copy(self._def_value)
self._unaryop(op)
- self.assertEqual(self._def.value, value_before)
+ self.assertEqual(self._def, value_before)
def _test_binop_type(self, op, rhs):
r, rv = self._binop(op, rhs)
self.assertEqual(self._def.addr, addr_before)
def _test_binop_lhs_value_same(self, op, rhs):
- value_before = self._def.value
+ value_before = copy.copy(self._def)
r, rv = self._binop(op, rhs)
- self.assertEqual(self._def.value, value_before)
+ self.assertEqual(self._def, value_before)
def _test_binop_invalid_unknown(self, op):
if op in _COMP_BINOPS:
raw = True
self._def.value = raw
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_false(self):
raw = False
self._def.value = raw
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_pos_int(self):
raw = 477
self._def.value = raw
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_neg_int(self):
raw = -13
self._def.value = raw
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_int_field(self):
raw = 999
field.value = raw
self._def.value = field
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_float(self):
raw = 123.456
self._def.value = raw
self.assertEqual(self._def, int(raw))
- self.assertEqual(self._def.value, int(raw))
def test_assign_invalid_type(self):
with self.assertRaises(TypeError):
raw = 1777
field.value = 1777
self.assertEqual(field, raw)
- self.assertEqual(field.value, raw)
def test_assign_uint_invalid_neg(self):
ft = bt2.IntegerFieldType(size=32, is_signed=False)
def test_assign_true(self):
self._def.value = True
self.assertTrue(self._def)
- self.assertTrue(self._def.value)
def test_assign_false(self):
self._def.value = False
self.assertFalse(self._def)
- self.assertFalse(self._def.value)
def test_assign_pos_int(self):
raw = 477
self._def.value = raw
self.assertEqual(self._def, float(raw))
- self.assertEqual(self._def.value, float(raw))
def test_assign_neg_int(self):
raw = -13
self._def.value = raw
self.assertEqual(self._def, float(raw))
- self.assertEqual(self._def.value, float(raw))
def test_assign_int_field(self):
ft = bt2.IntegerFieldType(32)
field.value = raw
self._def.value = field
self.assertEqual(self._def, float(raw))
- self.assertEqual(self._def.value, float(raw))
def test_assign_float(self):
raw = -19.23
self._def.value = raw
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_float_field(self):
ft = bt2.FloatingPointNumberFieldType(32)
field.value = raw
self._def.value = field
self.assertEqual(self._def, raw)
- self.assertEqual(self._def.value, raw)
def test_assign_invalid_type(self):
with self.assertRaises(TypeError):