import math
-def _create_field_from_ptr(ptr, owner_ptr, owner_get_ref, owner_put_ref):
+def _create_field_from_ptr_template(
+ object_map, ptr, owner_ptr, owner_get_ref, owner_put_ref
+):
+
field_class_ptr = native_bt.field_borrow_class_const(ptr)
typeid = native_bt.field_class_get_type(field_class_ptr)
- field = _TYPE_ID_TO_OBJ[typeid]._create_from_ptr_and_get_ref(
+ field = object_map[typeid]._create_from_ptr_and_get_ref(
ptr, owner_ptr, owner_get_ref, owner_put_ref
)
return field
+def _create_field_from_ptr(ptr, owner_ptr, owner_get_ref, owner_put_ref):
+ return _create_field_from_ptr_template(
+ _TYPE_ID_TO_OBJ, ptr, owner_ptr, owner_get_ref, owner_put_ref
+ )
+
+
+def _create_field_from_const_ptr(ptr, owner_ptr, owner_get_ref, owner_put_ref):
+ return _create_field_from_ptr_template(
+ _TYPE_ID_TO_CONST_OBJ, ptr, owner_ptr, owner_get_ref, owner_put_ref
+ )
+
+
# Get the "effective" field of `field`. If `field` is a variant, return
# the currently selected field. If `field` is an option, return the
# content field. If `field` is of any other type, return `field`
def _get_leaf_field(field):
- if isinstance(field, _VariantField):
+ if isinstance(field, _VariantFieldConst):
return _get_leaf_field(field.selected_option)
- if isinstance(field, _OptionField):
+ if isinstance(field, _OptionFieldConst):
return _get_leaf_field(field.field)
return field
-class _Field(object._UniqueObject):
+class _FieldConst(object._UniqueObject):
+ _create_field_from_ptr = staticmethod(_create_field_from_const_ptr)
+ _create_field_class_from_ptr_and_get_ref = staticmethod(
+ bt2_field_class._create_field_class_from_const_ptr_and_get_ref
+ )
+ _borrow_class_ptr = staticmethod(native_bt.field_borrow_class_const)
+
def __eq__(self, other):
other = _get_leaf_field(other)
return self._spec_eq(other)
@property
def cls(self):
- field_class_ptr = native_bt.field_borrow_class_const(self._ptr)
+ field_class_ptr = self._borrow_class_ptr(self._ptr)
assert field_class_ptr is not None
- return bt2_field_class._create_field_class_from_ptr_and_get_ref(field_class_ptr)
+ return self._create_field_class_from_ptr_and_get_ref(field_class_ptr)
def _repr(self):
raise NotImplementedError
return self._repr()
-class _BitArrayField(_Field):
- _NAME = 'Bit array'
+class _Field(_FieldConst):
+ _create_field_from_ptr = staticmethod(_create_field_from_ptr)
+ _create_field_class_from_ptr_and_get_ref = staticmethod(
+ bt2_field_class._create_field_class_from_ptr_and_get_ref
+ )
+ _borrow_class_ptr = staticmethod(native_bt.field_borrow_class)
+
+
+class _BitArrayFieldConst(_FieldConst):
+ _NAME = 'Const bit array'
@property
def value_as_integer(self):
return native_bt.field_bit_array_get_value_as_integer(self._ptr)
- @value_as_integer.setter
- def value_as_integer(self, value):
- utils._check_uint64(value)
- native_bt.field_bit_array_set_value_as_integer(self._ptr, value)
-
def _spec_eq(self, other):
if type(other) is not type(self):
return False
return self.cls.length
+class _BitArrayField(_BitArrayFieldConst, _Field):
+ _NAME = 'Bit array'
+
+ def _value_as_integer(self, value):
+ utils._check_uint64(value)
+ native_bt.field_bit_array_set_value_as_integer(self._ptr, value)
+
+ value_as_integer = property(
+ fget=_BitArrayFieldConst.value_as_integer.fget, fset=_value_as_integer
+ )
+
+
@functools.total_ordering
-class _NumericField(_Field):
+class _NumericFieldConst(_FieldConst):
@staticmethod
def _extract_value(other):
- if isinstance(other, _BoolField) or isinstance(other, bool):
+ if isinstance(other, _BoolFieldConst) or isinstance(other, bool):
return bool(other)
if isinstance(other, numbers.Integral):
return self._extract_value(base) ** self._value
-class _IntegralField(_NumericField, numbers.Integral):
+class _NumericField(_NumericFieldConst, _Field):
+ pass
+
+
+class _IntegralFieldConst(_NumericFieldConst, numbers.Integral):
def __lshift__(self, other):
return self._value << self._extract_value(other)
return ~self._value
-class _BoolField(_IntegralField, _Field):
- _NAME = 'Boolean'
+class _IntegralField(_IntegralFieldConst, _NumericField):
+ pass
+
+
+class _BoolFieldConst(_IntegralFieldConst, _FieldConst):
+ _NAME = 'Const boolean'
def __bool__(self):
return self._value
- def _value_to_bool(self, value):
- if isinstance(value, _BoolField):
+ @classmethod
+ def _value_to_bool(cls, value):
+ if isinstance(value, _BoolFieldConst):
value = value._value
if not isinstance(value, bool):
raise TypeError(
- "'{}' object is not a 'bool' or '_BoolField' object".format(
+ "'{}' object is not a 'bool', '_BoolFieldConst', or '_BoolField' object".format(
value.__class__
)
)
def _value(self):
return bool(native_bt.field_bool_get_value(self._ptr))
+
+class _BoolField(_BoolFieldConst, _IntegralField, _Field):
+ _NAME = 'Boolean'
+
def _set_value(self, value):
value = self._value_to_bool(value)
native_bt.field_bool_set_value(self._ptr, value)
value = property(fset=_set_value)
-class _IntegerField(_IntegralField, _Field):
+class _IntegerFieldConst(_IntegralFieldConst, _FieldConst):
pass
-class _UnsignedIntegerField(_IntegerField, _Field):
- _NAME = 'Unsigned integer'
+class _IntegerField(_IntegerFieldConst, _IntegralField, _Field):
+ pass
+
+
+class _UnsignedIntegerFieldConst(_IntegerFieldConst, _FieldConst):
+ _NAME = 'Const unsigned integer'
- def _value_to_int(self, value):
+ @classmethod
+ def _value_to_int(cls, value):
if not isinstance(value, numbers.Integral):
raise TypeError('expecting an integral number object')
def _value(self):
return native_bt.field_integer_unsigned_get_value(self._ptr)
+
+class _UnsignedIntegerField(_UnsignedIntegerFieldConst, _IntegerField, _Field):
+ _NAME = 'Unsigned integer'
+
def _set_value(self, value):
value = self._value_to_int(value)
native_bt.field_integer_unsigned_set_value(self._ptr, value)
value = property(fset=_set_value)
-class _SignedIntegerField(_IntegerField, _Field):
- _NAME = 'Signed integer'
+class _SignedIntegerFieldConst(_IntegerFieldConst, _FieldConst):
+ _NAME = 'Const signed integer'
- def _value_to_int(self, value):
+ @classmethod
+ def _value_to_int(cls, value):
if not isinstance(value, numbers.Integral):
raise TypeError('expecting an integral number object')
def _value(self):
return native_bt.field_integer_signed_get_value(self._ptr)
+
+class _SignedIntegerField(_SignedIntegerFieldConst, _IntegerField, _Field):
+ _NAME = 'Signed integer'
+
def _set_value(self, value):
value = self._value_to_int(value)
native_bt.field_integer_signed_set_value(self._ptr, value)
value = property(fset=_set_value)
-class _RealField(_NumericField, numbers.Real):
- _NAME = 'Real'
+class _RealFieldConst(_NumericFieldConst, numbers.Real):
+ _NAME = 'Const real'
- def _value_to_float(self, value):
+ @classmethod
+ def _value_to_float(cls, value):
if not isinstance(value, numbers.Real):
raise TypeError("expecting a real number object")
def _value(self):
return native_bt.field_real_get_value(self._ptr)
+
+class _RealField(_RealFieldConst, _NumericField):
+ _NAME = 'Real'
+
def _set_value(self, value):
value = self._value_to_float(value)
native_bt.field_real_set_value(self._ptr, value)
value = property(fset=_set_value)
-class _EnumerationField(_IntegerField):
+class _EnumerationFieldConst(_IntegerFieldConst):
def _repr(self):
return '{} ({})'.format(self._value, ', '.join(self.labels))
return labels
-class _UnsignedEnumerationField(_EnumerationField, _UnsignedIntegerField):
- _NAME = 'Unsigned Enumeration'
+class _EnumerationField(_EnumerationFieldConst, _IntegerField):
+ pass
+
+
+class _UnsignedEnumerationFieldConst(
+ _EnumerationFieldConst, _UnsignedIntegerFieldConst
+):
+ _NAME = 'Const unsigned Enumeration'
_get_mapping_labels = staticmethod(
native_bt.field_enumeration_unsigned_get_mapping_labels
)
-class _SignedEnumerationField(_EnumerationField, _SignedIntegerField):
- _NAME = 'Signed Enumeration'
+class _UnsignedEnumerationField(
+ _UnsignedEnumerationFieldConst, _EnumerationField, _UnsignedIntegerField
+):
+ _NAME = 'Unsigned enumeration'
+
+
+class _SignedEnumerationFieldConst(_EnumerationFieldConst, _SignedIntegerFieldConst):
+ _NAME = 'Const signed Enumeration'
_get_mapping_labels = staticmethod(
native_bt.field_enumeration_signed_get_mapping_labels
)
+class _SignedEnumerationField(
+ _SignedEnumerationFieldConst, _EnumerationField, _SignedIntegerField
+):
+ _NAME = 'Signed enumeration'
+
+
@functools.total_ordering
-class _StringField(_Field):
- _NAME = 'String'
+class _StringFieldConst(_FieldConst):
+ _NAME = 'Const string'
- def _value_to_str(self, value):
- if isinstance(value, self.__class__):
+ @classmethod
+ def _value_to_str(cls, value):
+ if isinstance(value, _StringFieldConst):
value = value._value
if not isinstance(value, str):
def _value(self):
return native_bt.field_string_get_value(self._ptr)
- def _set_value(self, value):
- value = self._value_to_str(value)
- native_bt.field_string_set_value(self._ptr, value)
-
- value = property(fset=_set_value)
-
def _spec_eq(self, other):
try:
return self._value == self._value_to_str(other)
def __len__(self):
return native_bt.field_string_get_length(self._ptr)
+
+class _StringField(_StringFieldConst, _Field):
+ _NAME = 'String'
+
+ def _set_value(self, value):
+ value = self._value_to_str(value)
+ native_bt.field_string_set_value(self._ptr, value)
+
+ value = property(fset=_set_value)
+
def __iadd__(self, value):
value = self._value_to_str(value)
status = native_bt.field_string_append(self._ptr, value)
return self
-class _ContainerField(_Field):
+class _ContainerFieldConst(_FieldConst):
def __bool__(self):
return len(self) != 0
+ def _count(self):
+ return len(self.cls)
+
def __len__(self):
count = self._count()
assert count >= 0
def __delitem__(self, index):
raise NotImplementedError
+ def __setitem__(self, index, value):
+ raise TypeError(
+ '\'{}\' object does not support item assignment'.format(self.__class__)
+ )
-class _StructureField(_ContainerField, collections.abc.MutableMapping):
- _NAME = 'Structure'
- def _count(self):
- return len(self.cls)
+class _ContainerField(_ContainerFieldConst, _Field):
+ pass
- def __setitem__(self, key, value):
- # raises if key is somehow invalid
- field = self[key]
- # the field's property does the appropriate conversion or raises
- # the appropriate exception
- field.value = value
+class _StructureFieldConst(_ContainerFieldConst, collections.abc.Mapping):
+ _NAME = 'Const structure'
+ _borrow_member_field_ptr_by_index = staticmethod(
+ native_bt.field_structure_borrow_member_field_by_index_const
+ )
+ _borrow_member_field_ptr_by_name = staticmethod(
+ native_bt.field_structure_borrow_member_field_by_name_const
+ )
+
+ def _count(self):
+ return len(self.cls)
def __iter__(self):
# same name iterator
return True
- def _set_value(self, values):
- try:
- for key, value in values.items():
- self[key].value = value
- except Exception:
- raise
-
- value = property(fset=_set_value)
-
def _repr(self):
items = ['{}: {}'.format(repr(k), repr(v)) for k, v in self.items()]
return '{{{}}}'.format(', '.join(items))
def __getitem__(self, key):
utils._check_str(key)
- field_ptr = native_bt.field_structure_borrow_member_field_by_name(
- self._ptr, key
- )
+ field_ptr = self._borrow_member_field_ptr_by_name(self._ptr, key)
if field_ptr is None:
raise KeyError(key)
- return _create_field_from_ptr(
+ return self._create_field_from_ptr(
field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref
)
if index >= len(self):
raise IndexError
-
- field_ptr = native_bt.field_structure_borrow_member_field_by_index(
- self._ptr, index
- )
+ field_ptr = self._borrow_member_field_ptr_by_index(self._ptr, index)
assert field_ptr is not None
- return _create_field_from_ptr(
+ return self._create_field_from_ptr(
field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref
)
-class _OptionField(_Field):
- _NAME = 'Option'
+class _StructureField(
+ _StructureFieldConst, _ContainerField, collections.abc.MutableMapping
+):
+ _NAME = 'Structure'
+ _borrow_member_field_ptr_by_index = staticmethod(
+ native_bt.field_structure_borrow_member_field_by_index
+ )
+ _borrow_member_field_ptr_by_name = staticmethod(
+ native_bt.field_structure_borrow_member_field_by_name
+ )
+
+ def __setitem__(self, key, value):
+ # raises if key is somehow invalid
+ field = self[key]
+
+ # the field's property does the appropriate conversion or raises
+ # the appropriate exception
+ field.value = value
+
+ def _set_value(self, values):
+ try:
+ for key, value in values.items():
+ self[key].value = value
+ except Exception:
+ raise
+
+ value = property(fset=_set_value)
+
+
+class _OptionFieldConst(_FieldConst):
+ _NAME = 'Const option'
+ _borrow_field_ptr = staticmethod(native_bt.field_option_borrow_field_const)
@property
def field(self):
- field_ptr = native_bt.field_option_borrow_field_const(self._ptr)
+ field_ptr = self._borrow_field_ptr(self._ptr)
if field_ptr is None:
return
- return _create_field_from_ptr(
+ return self._create_field_from_ptr(
field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref
)
def has_field(self):
return self.field is not None
- @has_field.setter
- def has_field(self, value):
- utils._check_bool(value)
- native_bt.field_option_set_has_field(self._ptr, value)
-
def _spec_eq(self, other):
return _get_leaf_field(self) == other
def _repr(self):
return repr(self.field)
+
+class _OptionField(_OptionFieldConst, _Field):
+ _NAME = 'Option'
+ _borrow_field_ptr = staticmethod(native_bt.field_option_borrow_field)
+
+ def _has_field(self, value):
+ utils._check_bool(value)
+ native_bt.field_option_set_has_field(self._ptr, value)
+
+ has_field = property(fget=_OptionFieldConst.has_field.fget, fset=_has_field)
+
def _set_value(self, value):
self.has_field = True
field = self.field
value = property(fset=_set_value)
-class _VariantField(_ContainerField, _Field):
- _NAME = 'Variant'
+class _VariantFieldConst(_ContainerFieldConst, _FieldConst):
+ _NAME = 'Const variant'
+ _borrow_selected_option_field_ptr = staticmethod(
+ native_bt.field_variant_borrow_selected_option_field_const
+ )
def _count(self):
return len(self.cls)
def selected_option_index(self):
return native_bt.field_variant_get_selected_option_field_index(self._ptr)
- @selected_option_index.setter
- def selected_option_index(self, index):
- if index < 0 or index >= len(self):
- raise IndexError('{} field object index is out of range'.format(self._NAME))
-
- native_bt.field_variant_select_option_field_by_index(self._ptr, index)
-
@property
def selected_option(self):
# TODO: Is there a way to check if the variant field has a selected_option,
# so we can raise an exception instead of hitting a pre-condition check?
# If there is something, that check should be added to selected_option_index too.
- field_ptr = native_bt.field_variant_borrow_selected_option_field(self._ptr)
+ field_ptr = self._borrow_selected_option_field_ptr(self._ptr)
- return _create_field_from_ptr(
+ return self._create_field_from_ptr(
field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref
)
def _repr(self):
return repr(self.selected_option)
+
+class _VariantField(_VariantFieldConst, _ContainerField, _Field):
+ _NAME = 'Variant'
+ _borrow_selected_option_field_ptr = staticmethod(
+ native_bt.field_variant_borrow_selected_option_field
+ )
+
+ def _selected_option_index(self, index):
+ if index < 0 or index >= len(self):
+ raise IndexError('{} field object index is out of range'.format(self._NAME))
+
+ native_bt.field_variant_select_option_field_by_index(self._ptr, index)
+
+ selected_option_index = property(
+ fget=_VariantFieldConst.selected_option_index.fget, fset=_selected_option_index
+ )
+
def _set_value(self, value):
self.selected_option.value = value
value = property(fset=_set_value)
-class _ArrayField(_ContainerField, _Field, collections.abc.MutableSequence):
+class _ArrayFieldConst(_ContainerFieldConst, _FieldConst, collections.abc.Sequence):
+ _borrow_element_field_ptr_by_index = staticmethod(
+ native_bt.field_array_borrow_element_field_by_index_const
+ )
+
def _get_length(self):
return native_bt.field_array_get_length(self._ptr)
if index < 0 or index >= len(self):
raise IndexError('{} field object index is out of range'.format(self._NAME))
- field_ptr = native_bt.field_array_borrow_element_field_by_index(
- self._ptr, index
- )
+ field_ptr = self._borrow_element_field_ptr_by_index(self._ptr, index)
assert field_ptr
- return _create_field_from_ptr(
+ return self._create_field_from_ptr(
field_ptr, self._owner_ptr, self._owner_get_ref, self._owner_put_ref
)
- def __setitem__(self, index, value):
- # raises if index is somehow invalid
- field = self[index]
-
- if not isinstance(field, (_NumericField, _StringField)):
- raise TypeError('can only set the value of a number or string field')
-
- # the field's property does the appropriate conversion or raises
- # the appropriate exception
- field.value = value
-
def insert(self, index, value):
raise NotImplementedError
return '[{}]'.format(', '.join([repr(v) for v in self]))
-class _StaticArrayField(_ArrayField, _Field):
- _NAME = 'Static array'
+class _ArrayField(
+ _ArrayFieldConst, _ContainerField, _Field, collections.abc.MutableSequence
+):
+ _borrow_element_field_ptr_by_index = staticmethod(
+ native_bt.field_array_borrow_element_field_by_index
+ )
+
+ def __setitem__(self, index, value):
+ # raises if index is somehow invalid
+ field = self[index]
+
+ if not isinstance(field, (_NumericField, _StringField)):
+ raise TypeError('can only set the value of a number or string field')
+
+ # the field's property does the appropriate conversion or raises
+ # the appropriate exception
+ field.value = value
+
+
+class _StaticArrayFieldConst(_ArrayFieldConst, _FieldConst):
+ _NAME = 'Const static array'
def _count(self):
return native_bt.field_array_get_length(self._ptr)
+
+class _StaticArrayField(_StaticArrayFieldConst, _ArrayField, _Field):
+ _NAME = 'Static array'
+
def _set_value(self, values):
if len(self) != len(values):
raise ValueError('expected length of value and array field to match')
value = property(fset=_set_value)
-class _DynamicArrayField(_ArrayField, _Field):
- _NAME = 'Dynamic array'
+class _DynamicArrayFieldConst(_ArrayFieldConst, _FieldConst):
+ _NAME = 'Const dynamic array'
def _count(self):
return self.length
+
+class _DynamicArrayField(_DynamicArrayFieldConst, _ArrayField, _Field):
+ _NAME = 'Dynamic array'
+
def _set_length(self, length):
utils._check_uint64(length)
status = native_bt.field_array_dynamic_set_length(self._ptr, length)
value = property(fset=_set_value)
+_TYPE_ID_TO_CONST_OBJ = {
+ native_bt.FIELD_CLASS_TYPE_BOOL: _BoolFieldConst,
+ native_bt.FIELD_CLASS_TYPE_BIT_ARRAY: _BitArrayFieldConst,
+ native_bt.FIELD_CLASS_TYPE_UNSIGNED_INTEGER: _UnsignedIntegerFieldConst,
+ native_bt.FIELD_CLASS_TYPE_SIGNED_INTEGER: _SignedIntegerFieldConst,
+ native_bt.FIELD_CLASS_TYPE_REAL: _RealFieldConst,
+ native_bt.FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION: _UnsignedEnumerationFieldConst,
+ native_bt.FIELD_CLASS_TYPE_SIGNED_ENUMERATION: _SignedEnumerationFieldConst,
+ native_bt.FIELD_CLASS_TYPE_STRING: _StringFieldConst,
+ native_bt.FIELD_CLASS_TYPE_STRUCTURE: _StructureFieldConst,
+ native_bt.FIELD_CLASS_TYPE_STATIC_ARRAY: _StaticArrayFieldConst,
+ native_bt.FIELD_CLASS_TYPE_DYNAMIC_ARRAY: _DynamicArrayFieldConst,
+ native_bt.FIELD_CLASS_TYPE_OPTION: _OptionFieldConst,
+ native_bt.FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR: _VariantFieldConst,
+ native_bt.FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_SELECTOR: _VariantFieldConst,
+ native_bt.FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_SELECTOR: _VariantFieldConst,
+}
+
_TYPE_ID_TO_OBJ = {
native_bt.FIELD_CLASS_TYPE_BOOL: _BoolField,
native_bt.FIELD_CLASS_TYPE_BIT_ARRAY: _BitArrayField,
projects / babeltrace.git / blobdiff