drgn/tests/test_type.py
Jay Kamat 6c264b0eae libdrgn: add language to struct drgn_type
For types obtained from DWARF, we determine it from the language of the
CU. For other types, it can be specified manually or fall back to the
default (C). Then, we can use the language for operations where the type
is available.
2020-02-26 19:55:42 -08:00

1328 lines
45 KiB
Python

import unittest
from drgn import (
Language,
PrimitiveType,
Qualifiers,
TypeEnumerator,
TypeKind,
TypeMember,
TypeParameter,
array_type,
bool_type,
class_type,
complex_type,
enum_type,
float_type,
function_type,
int_type,
pointer_type,
sizeof,
struct_type,
typedef_type,
union_type,
void_type,
)
from tests import DEFAULT_LANGUAGE
class TestType(unittest.TestCase):
def test_void(self):
t = void_type()
self.assertEqual(t.kind, TypeKind.VOID)
self.assertEqual(t.primitive, PrimitiveType.C_VOID)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t, void_type())
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "void_type()")
def test_int(self):
t = int_type("int", 4, True)
self.assertEqual(t.kind, TypeKind.INT)
self.assertEqual(t.primitive, PrimitiveType.C_INT)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.name, "int")
self.assertEqual(t.size, 4)
self.assertTrue(t.is_signed)
self.assertTrue(t.is_complete())
self.assertEqual(t, int_type("int", 4, True))
self.assertNotEqual(t, int_type("long", 4, True))
self.assertNotEqual(t, int_type("int", 2, True))
self.assertNotEqual(t, int_type("int", 4, False))
self.assertEqual(repr(t), "int_type(name='int', size=4, is_signed=True)")
self.assertEqual(sizeof(t), 4)
self.assertRaises(TypeError, int_type, None, 4, True)
self.assertIsNone(int_type("my_int", 4, True).primitive)
self.assertIsNone(int_type("int", 4, False).primitive)
def test_bool(self):
t = bool_type("_Bool", 1)
self.assertEqual(t.kind, TypeKind.BOOL)
self.assertEqual(t.primitive, PrimitiveType.C_BOOL)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.name, "_Bool")
self.assertEqual(t.size, 1)
self.assertTrue(t.is_complete())
self.assertEqual(t, bool_type("_Bool", 1))
self.assertNotEqual(t, bool_type("bool", 1))
self.assertNotEqual(t, bool_type("_Bool", 2))
self.assertEqual(repr(t), "bool_type(name='_Bool', size=1)")
self.assertEqual(sizeof(t), 1)
self.assertRaises(TypeError, bool_type, None, 1)
def test_float(self):
t = float_type("float", 4)
self.assertEqual(t.primitive, PrimitiveType.C_FLOAT)
self.assertEqual(t.kind, TypeKind.FLOAT)
self.assertEqual(t.name, "float")
self.assertEqual(t.size, 4)
self.assertTrue(t.is_complete())
self.assertEqual(t, float_type("float", 4))
self.assertNotEqual(t, float_type("double", 4))
self.assertNotEqual(t, float_type("float", 8))
self.assertEqual(repr(t), "float_type(name='float', size=4)")
self.assertEqual(sizeof(t), 4)
self.assertRaises(TypeError, float_type, None, 4)
def test_complex(self):
t = complex_type("double _Complex", 16, float_type("double", 8))
self.assertEqual(t.kind, TypeKind.COMPLEX)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.name, "double _Complex")
self.assertEqual(t.size, 16)
self.assertEqual(t.type, float_type("double", 8))
self.assertTrue(t.is_complete())
self.assertEqual(
t, complex_type("double _Complex", 16, float_type("double", 8))
)
self.assertNotEqual(
t, complex_type("float _Complex", 16, float_type("double", 8))
)
self.assertNotEqual(
t, complex_type("double _Complex", 32, float_type("double", 8))
)
self.assertNotEqual(
t, complex_type("double _Complex", 16, float_type("float", 4))
)
self.assertEqual(
repr(t),
"complex_type(name='double _Complex', size=16, type=float_type(name='double', size=8))",
)
self.assertEqual(sizeof(t), 16)
self.assertRaises(TypeError, complex_type, None, 16, float_type("double", 8))
self.assertRaises(TypeError, complex_type, "double _Complex", 16, None)
self.assertRaisesRegex(
ValueError,
"must be floating-point or integer type",
complex_type,
"double _Complex",
16,
void_type(),
)
self.assertRaisesRegex(
ValueError,
"must be unqualified",
complex_type,
"double _Complex",
16,
float_type("double", 8, Qualifiers.CONST),
)
def test_struct(self):
t = struct_type(
"point",
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
)
self.assertEqual(t.kind, TypeKind.STRUCT)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.tag, "point")
self.assertEqual(t.size, 8)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("int", 4, True), "y", 32, 0),
),
)
self.assertTrue(t.is_complete())
self.assertEqual(
t,
struct_type(
"point",
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
),
)
# Different tag.
self.assertNotEqual(
t,
struct_type(
"pt",
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
),
)
# Different size.
self.assertNotEqual(
t,
struct_type(
"point",
16,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
),
)
# One is anonymous.
self.assertNotEqual(
t,
struct_type(
None,
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
),
)
# Different members.
self.assertNotEqual(
t,
struct_type(
"point",
8,
(
TypeMember(int_type("long", 8, True), "x", 0),
TypeMember(int_type("long", 8, True), "y", 64),
),
),
)
# Different number of members.
self.assertNotEqual(
t,
struct_type(
"point",
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
),
)
# One member is anonymous.
self.assertNotEqual(
t,
struct_type(
"point",
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), None, 32),
),
),
)
# One is incomplete.
self.assertNotEqual(t, struct_type("point"))
self.assertEqual(
repr(t),
"struct_type(tag='point', size=8, members=(TypeMember(type=int_type(name='int', size=4, is_signed=True), name='x', bit_offset=0), TypeMember(type=int_type(name='int', size=4, is_signed=True), name='y', bit_offset=32)))",
)
self.assertEqual(sizeof(t), 8)
t = struct_type(
None,
8,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
)
self.assertEqual(t.kind, TypeKind.STRUCT)
self.assertIsNone(t.primitive)
self.assertIsNone(t.tag)
self.assertEqual(t.size, 8)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("int", 4, True), "y", 32, 0),
),
)
self.assertTrue(t.is_complete())
t = struct_type("color", 0, ())
self.assertEqual(t.kind, TypeKind.STRUCT)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertEqual(t.size, 0)
self.assertEqual(t.members, ())
self.assertTrue(t.is_complete())
self.assertEqual(repr(t), "struct_type(tag='color', size=0, members=())")
t = struct_type("color")
self.assertEqual(t.kind, TypeKind.STRUCT)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "struct_type(tag='color', size=None, members=None)")
t = struct_type(None, None, None)
self.assertEqual(t.kind, TypeKind.STRUCT)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, None)
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "struct_type(tag=None, size=None, members=None)")
self.assertRaises(TypeError, struct_type, 4)
self.assertRaisesRegex(
ValueError, "must not have size", struct_type, "point", 8, None
)
self.assertRaisesRegex(
ValueError, "must have size", struct_type, "point", None, ()
)
self.assertRaisesRegex(
TypeError, "must be sequence or None", struct_type, "point", 8, 4
)
self.assertRaisesRegex(
TypeError, "must be TypeMember", struct_type, "point", 8, (4,)
)
# Bit size.
t = struct_type(
"point",
8,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("int", 4, True), "y", 32, 4),
),
)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("int", 4, True), "y", 32, 4),
),
)
def test_union(self):
t = union_type(
"option",
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
)
self.assertEqual(t.kind, TypeKind.UNION)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.tag, "option")
self.assertEqual(t.size, 4)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("unsigned int", 4, False), "y", 0, 0),
),
)
self.assertTrue(t.is_complete())
self.assertEqual(
t,
union_type(
"option",
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
),
)
# Different tag.
self.assertNotEqual(
t,
union_type(
"pt",
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
),
)
# Different size.
self.assertNotEqual(
t,
union_type(
"option",
8,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
),
)
# One is anonymous.
self.assertNotEqual(
t,
union_type(
None,
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
),
)
# Different members.
self.assertNotEqual(
t,
union_type(
"option",
4,
(
TypeMember(int_type("long", 8, True), "x"),
TypeMember(int_type("unsigned long", 8, False), "y"),
),
),
)
# Different number of members.
self.assertNotEqual(
t,
union_type(
"option",
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
TypeMember(float_type("float", 4), "z"),
),
),
)
# One member is anonymous.
self.assertNotEqual(
t,
union_type(
"option",
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False),),
),
),
)
# One is incomplete.
self.assertNotEqual(t, union_type("option"))
self.assertEqual(
repr(t),
"union_type(tag='option', size=4, members=(TypeMember(type=int_type(name='int', size=4, is_signed=True), name='x', bit_offset=0), TypeMember(type=int_type(name='unsigned int', size=4, is_signed=False), name='y', bit_offset=0)))",
)
self.assertEqual(sizeof(t), 4)
t = union_type(
None,
4,
(
TypeMember(int_type("int", 4, True), "x"),
TypeMember(int_type("unsigned int", 4, False), "y"),
),
)
self.assertEqual(t.kind, TypeKind.UNION)
self.assertIsNone(t.primitive)
self.assertIsNone(t.tag)
self.assertEqual(t.size, 4)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("unsigned int", 4, False), "y", 0, 0),
),
)
self.assertTrue(t.is_complete())
t = union_type("color", 0, ())
self.assertEqual(t.kind, TypeKind.UNION)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertEqual(t.size, 0)
self.assertEqual(t.members, ())
self.assertTrue(t.is_complete())
self.assertEqual(repr(t), "union_type(tag='color', size=0, members=())")
t = union_type("color")
self.assertEqual(t.kind, TypeKind.UNION)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "union_type(tag='color', size=None, members=None)")
t = union_type(None, None, None)
self.assertEqual(t.kind, TypeKind.UNION)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, None)
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "union_type(tag=None, size=None, members=None)")
self.assertRaises(TypeError, union_type, 4)
self.assertRaisesRegex(
ValueError, "must not have size", union_type, "option", 8, None
)
self.assertRaisesRegex(
ValueError, "must have size", union_type, "option", None, ()
)
self.assertRaisesRegex(
TypeError, "must be sequence or None", union_type, "option", 8, 4
)
self.assertRaisesRegex(
TypeError, "must be TypeMember", union_type, "option", 8, (4,)
)
# Bit size.
t = union_type(
"option",
4,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("unsigned int", 4, False), "y", 0, 4),
),
)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("unsigned int", 4, False), "y", 0, 4),
),
)
def test_class(self):
t = class_type(
"coord",
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
)
self.assertEqual(t.kind, TypeKind.CLASS)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.tag, "coord")
self.assertEqual(t.size, 12)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("int", 4, True), "y", 32, 0),
TypeMember(int_type("int", 4, True), "z", 64, 0),
),
)
self.assertTrue(t.is_complete())
self.assertEqual(
t,
class_type(
"coord",
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
),
)
# Different tag.
self.assertNotEqual(
t,
class_type(
"crd",
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
),
)
# Different size.
self.assertNotEqual(
t,
class_type(
"coord",
16,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
),
)
# One is anonymous.
self.assertNotEqual(
t,
class_type(
None,
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
),
)
# Different members.
self.assertNotEqual(
t,
class_type(
"coord",
12,
(
TypeMember(int_type("long", 8, True), "x", 0),
TypeMember(int_type("long", 8, True), "y", 64),
TypeMember(int_type("long", 8, True), "z", 128),
),
),
)
# Different number of members.
self.assertNotEqual(
t,
class_type(
"coord",
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
),
),
)
# One member is anonymous.
self.assertNotEqual(
t,
class_type(
"coord",
8,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("int", 4, True), None, 32, 0),
TypeMember(int_type("int", 4, True), "z", 64, 0),
),
),
)
# One is incomplete.
self.assertNotEqual(t, class_type("coord"))
self.assertEqual(
repr(t),
"class_type(tag='coord', size=12, members=(TypeMember(type=int_type(name='int', size=4, is_signed=True), name='x', bit_offset=0), TypeMember(type=int_type(name='int', size=4, is_signed=True), name='y', bit_offset=32), TypeMember(type=int_type(name='int', size=4, is_signed=True), name='z', bit_offset=64)))",
)
self.assertEqual(sizeof(t), 12)
t = class_type(
None,
12,
(
TypeMember(int_type("int", 4, True), "x", 0),
TypeMember(int_type("int", 4, True), "y", 32),
TypeMember(int_type("int", 4, True), "z", 64),
),
)
self.assertEqual(t.kind, TypeKind.CLASS)
self.assertIsNone(t.primitive)
self.assertIsNone(t.tag)
self.assertEqual(t.size, 12)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 0),
TypeMember(int_type("int", 4, True), "y", 32, 0),
TypeMember(int_type("int", 4, True), "z", 64, 0),
),
)
self.assertTrue(t.is_complete())
t = class_type("color", 0, ())
self.assertEqual(t.kind, TypeKind.CLASS)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertEqual(t.size, 0)
self.assertEqual(t.members, ())
self.assertTrue(t.is_complete())
self.assertEqual(repr(t), "class_type(tag='color', size=0, members=())")
t = class_type("color")
self.assertEqual(t.kind, TypeKind.CLASS)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "class_type(tag='color', size=None, members=None)")
t = class_type(None, None, None)
self.assertEqual(t.kind, TypeKind.CLASS)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, None)
self.assertIsNone(t.size)
self.assertIsNone(t.members)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "class_type(tag=None, size=None, members=None)")
self.assertRaises(TypeError, class_type, 4)
self.assertRaisesRegex(
ValueError, "must not have size", class_type, "coord", 12, None
)
self.assertRaisesRegex(
ValueError, "must have size", class_type, "coord", None, ()
)
self.assertRaisesRegex(
TypeError, "must be sequence or None", class_type, "coord", 12, 4
)
self.assertRaisesRegex(
TypeError, "must be TypeMember", class_type, "coord", 12, (4,)
)
# Bit size.
t = class_type(
"coord",
12,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("int", 4, True), "y", 32, 4),
TypeMember(int_type("int", 4, True), "z", 64, 4),
),
)
self.assertEqual(
t.members,
(
TypeMember(int_type("int", 4, True), "x", 0, 4),
TypeMember(int_type("int", 4, True), "y", 32, 4),
TypeMember(int_type("int", 4, True), "z", 64, 4),
),
)
def test_enum(self):
t = enum_type(
"color",
int_type("unsigned int", 4, False),
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
)
self.assertEqual(t.kind, TypeKind.ENUM)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.tag, "color")
self.assertEqual(t.type, int_type("unsigned int", 4, False))
self.assertEqual(
t.enumerators,
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
)
self.assertTrue(t.is_complete())
self.assertEqual(
t,
enum_type(
"color",
int_type("unsigned int", 4, False),
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
),
)
# Different tag.
self.assertNotEqual(
t,
enum_type(
"COLOR",
int_type("unsigned int", 4, False),
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
),
)
# One is anonymous.
self.assertNotEqual(
t,
enum_type(
None,
int_type("unsigned int", 4, False),
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
),
)
# Different compatible type.
self.assertNotEqual(
t,
enum_type(
"color",
int_type("int", 4, True),
(
TypeEnumerator("RED", 0),
TypeEnumerator("GREEN", 1),
TypeEnumerator("BLUE", 2),
),
),
)
# Different enumerators.
self.assertNotEqual(
t,
enum_type(
"color",
int_type("unsigned int", 4, False),
(
TypeEnumerator("RED", 0),
TypeEnumerator("YELLOW", 1),
TypeEnumerator("BLUE", 2),
),
),
)
# Different number of enumerators.
self.assertNotEqual(
t,
enum_type(
"color",
int_type("unsigned int", 4, False),
(TypeEnumerator("RED", 0), TypeEnumerator("GREEN", 1)),
),
)
# One is incomplete.
self.assertNotEqual(t, enum_type("color"))
self.assertEqual(
repr(t),
"enum_type(tag='color', type=int_type(name='unsigned int', size=4, is_signed=False), enumerators=(TypeEnumerator('RED', 0), TypeEnumerator('GREEN', 1), TypeEnumerator('BLUE', 2)))",
)
self.assertEqual(sizeof(t), 4)
t = enum_type("color", None, None)
self.assertEqual(t.kind, TypeKind.ENUM)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertIsNone(t.type)
self.assertIsNone(t.enumerators)
self.assertFalse(t.is_complete())
self.assertEqual(repr(t), "enum_type(tag='color', type=None, enumerators=None)")
# A type with no enumerators isn't valid in C, but we allow it.
t = enum_type("color", int_type("unsigned int", 4, False), ())
self.assertEqual(t.kind, TypeKind.ENUM)
self.assertIsNone(t.primitive)
self.assertEqual(t.tag, "color")
self.assertEqual(t.type, int_type("unsigned int", 4, False))
self.assertEqual(t.enumerators, ())
self.assertTrue(t.is_complete())
self.assertEqual(
repr(t),
"enum_type(tag='color', type=int_type(name='unsigned int', size=4, is_signed=False), enumerators=())",
)
self.assertRaisesRegex(TypeError, "must be Type", enum_type, "color", 4, ())
self.assertRaisesRegex(
ValueError, "must be integer type", enum_type, "color", void_type(), ()
)
self.assertRaisesRegex(
ValueError,
"must be unqualified",
enum_type,
"color",
int_type("unsigned int", 4, True, Qualifiers.CONST),
(),
)
self.assertRaisesRegex(
ValueError,
"must not have compatible type",
enum_type,
"color",
int_type("unsigned int", 4, False),
None,
)
self.assertRaisesRegex(
ValueError, "must have compatible type", enum_type, "color", None, ()
)
self.assertRaisesRegex(
TypeError,
"must be sequence or None",
enum_type,
"color",
int_type("unsigned int", 4, False),
4,
)
self.assertRaisesRegex(
TypeError,
"must be TypeEnumerator",
enum_type,
"color",
int_type("unsigned int", 4, False),
(4,),
)
def test_typedef(self):
t = typedef_type("INT", int_type("int", 4, True))
self.assertEqual(t.kind, TypeKind.TYPEDEF)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.name, "INT")
self.assertEqual(t.type, int_type("int", 4, True))
self.assertTrue(t.is_complete())
self.assertEqual(t, typedef_type("INT", int_type("int", 4, True)))
# Qualified type argument.
self.assertEqual(t, typedef_type("INT", int_type("int", 4, True)))
# Different name.
self.assertNotEqual(t, typedef_type("integer", int_type("int", 4, True)))
# Different type.
self.assertNotEqual(
t, typedef_type("integer", int_type("unsigned int", 4, False))
)
self.assertNotEqual(
t, typedef_type("INT", int_type("int", 4, True, Qualifiers.CONST))
)
self.assertEqual(
repr(t),
"typedef_type(name='INT', type=int_type(name='int', size=4, is_signed=True))",
)
self.assertEqual(sizeof(t), 4)
t = typedef_type("VOID", void_type())
self.assertFalse(t.is_complete())
self.assertRaises(TypeError, typedef_type, None, int_type("int", 4, True))
self.assertRaises(TypeError, typedef_type, "INT", 4)
self.assertEqual(
typedef_type("size_t", int_type("unsigned long", 8, False)).primitive,
PrimitiveType.C_SIZE_T,
)
self.assertEqual(
typedef_type("ptrdiff_t", int_type("long", 8, True)).primitive,
PrimitiveType.C_PTRDIFF_T,
)
def test_pointer(self):
t = pointer_type(8, int_type("int", 4, True))
self.assertEqual(t.kind, TypeKind.POINTER)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.size, 8)
self.assertEqual(t.type, int_type("int", 4, True))
self.assertTrue(t.is_complete())
self.assertEqual(t, pointer_type(8, int_type("int", 4, True)))
# Qualified type argument.
self.assertEqual(t, pointer_type(8, int_type("int", 4, True)))
# Different size.
self.assertNotEqual(t, pointer_type(4, int_type("int", 4, True)))
# Different type.
self.assertNotEqual(t, pointer_type(8, void_type()))
self.assertNotEqual(t, pointer_type(8, void_type(Qualifiers.CONST)))
self.assertEqual(
repr(t),
"pointer_type(size=8, type=int_type(name='int', size=4, is_signed=True))",
)
self.assertEqual(sizeof(t), 8)
self.assertRaises(TypeError, pointer_type, None, int_type("int", 4, True))
self.assertRaises(TypeError, pointer_type, 8, 4)
def test_array(self):
t = array_type(10, int_type("int", 4, True))
self.assertEqual(t.kind, TypeKind.ARRAY)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.length, 10)
self.assertEqual(t.type, int_type("int", 4, True))
self.assertTrue(t.is_complete())
self.assertEqual(t, array_type(10, int_type("int", 4, True)))
# Qualified type argument.
self.assertEqual(t, array_type(10, int_type("int", 4, True)))
# Different length.
self.assertNotEqual(t, array_type(4, int_type("int", 4, True)))
# Different type.
self.assertNotEqual(t, array_type(10, void_type()))
self.assertNotEqual(t, array_type(10, void_type(Qualifiers.CONST)))
self.assertEqual(
repr(t),
"array_type(length=10, type=int_type(name='int', size=4, is_signed=True))",
)
self.assertEqual(sizeof(t), 40)
t = array_type(0, int_type("int", 4, True))
self.assertEqual(t.kind, TypeKind.ARRAY)
self.assertIsNone(t.primitive)
self.assertEqual(t.length, 0)
self.assertEqual(t.type, int_type("int", 4, True))
self.assertTrue(t.is_complete())
t = array_type(None, int_type("int", 4, True))
self.assertEqual(t.kind, TypeKind.ARRAY)
self.assertIsNone(t.primitive)
self.assertIsNone(t.length)
self.assertEqual(t.type, int_type("int", 4, True))
self.assertFalse(t.is_complete())
self.assertRaises(TypeError, array_type, 10, 4)
def test_function(self):
t = function_type(void_type(), (TypeParameter(int_type("int", 4, True), "n"),))
self.assertEqual(t.kind, TypeKind.FUNCTION)
self.assertIsNone(t.primitive)
self.assertEqual(t.language, DEFAULT_LANGUAGE)
self.assertEqual(t.type, void_type())
self.assertEqual(t.parameters, (TypeParameter(int_type("int", 4, True), "n"),))
self.assertFalse(t.is_variadic)
self.assertTrue(t.is_complete())
self.assertEqual(
t,
function_type(void_type(), (TypeParameter(int_type("int", 4, True), "n"),)),
)
# Different return type.
self.assertNotEqual(
t,
function_type(
int_type("int", 4, True),
(TypeParameter(int_type("int", 4, True), "n"),),
),
)
# Different parameter name.
self.assertNotEqual(
t,
function_type(void_type(), (TypeParameter(int_type("int", 4, True), "x"),)),
)
# Unnamed parameter.
self.assertNotEqual(
t, function_type(void_type(), (TypeParameter(int_type("int", 4, True),),))
)
# Different number of parameters.
self.assertNotEqual(
t,
function_type(
void_type(),
(
TypeParameter(int_type("int", 4, True), "n"),
TypeParameter(pointer_type(8, void_type()), "p"),
),
),
)
# One is variadic.
self.assertNotEqual(
t,
function_type(
void_type(), (TypeParameter(int_type("int", 4, True), "n"),), True
),
)
self.assertEqual(
repr(t),
"function_type(type=void_type(), parameters=(TypeParameter(type=int_type(name='int', size=4, is_signed=True), name='n'),), is_variadic=False)",
)
self.assertRaises(TypeError, sizeof, t)
self.assertFalse(function_type(void_type(), (), False).is_variadic)
self.assertTrue(function_type(void_type(), (), True).is_variadic)
self.assertRaisesRegex(TypeError, "must be Type", function_type, None, ())
self.assertRaisesRegex(
TypeError, "must be sequence", function_type, void_type(), None
)
self.assertRaisesRegex(
TypeError, "must be TypeParameter", function_type, void_type(), (4,)
)
def test_cycle(self):
t1 = struct_type("foo", 8, (TypeMember(lambda: pointer_type(8, t1), "next"),))
t2 = struct_type("foo", 8, (TypeMember(lambda: pointer_type(8, t2), "next"),))
t3, t4 = (
struct_type("foo", 8, (TypeMember(lambda: pointer_type(8, t4), "next"),)),
struct_type("foo", 8, (TypeMember(lambda: pointer_type(8, t3), "next"),)),
)
self.assertEqual(t1, t2)
self.assertEqual(t2, t3)
self.assertEqual(t3, t4)
self.assertEqual(
repr(t1),
"struct_type(tag='foo', size=8, members=(TypeMember(type=pointer_type(size=8, type=struct_type(tag='foo', ...)), name='next', bit_offset=0),))",
)
def test_cycle2(self):
t1 = struct_type(
"list_head",
16,
(
TypeMember(lambda: pointer_type(8, t1), "next"),
TypeMember(lambda: pointer_type(8, t1), "prev", 8),
),
)
t2 = struct_type(
"list_head",
16,
(
TypeMember(lambda: pointer_type(8, t2), "next"),
TypeMember(lambda: pointer_type(8, t2), "prev", 8),
),
)
self.assertEqual(t1, t2)
self.assertEqual(
repr(t1),
"struct_type(tag='list_head', size=16, members=(TypeMember(type=pointer_type(size=8, type=struct_type(tag='list_head', ...)), name='next', bit_offset=0), TypeMember(type=pointer_type(size=8, type=struct_type(tag='list_head', ...)), name='prev', bit_offset=8)))",
)
def test_infinite(self):
f = lambda: struct_type("foo", 0, (TypeMember(f, "next"),))
self.assertEqual(
repr(f()),
"struct_type(tag='foo', size=0, members=(TypeMember(type=struct_type(tag='foo', ...), name='next', bit_offset=0),))",
)
with self.assertRaisesRegex(RecursionError, "maximum.*depth"):
f() == f()
def test_bad_thunk(self):
t1 = struct_type(
"foo", 16, (TypeMember(lambda: exec('raise Exception("test")'), "bar"),)
)
with self.assertRaisesRegex(Exception, "test"):
t1.members[0].type
t1 = struct_type("foo", 16, (TypeMember(lambda: 0, "bar"),))
with self.assertRaisesRegex(TypeError, "type callable must return Type"):
t1.members[0].type
def test_qualifiers(self):
self.assertEqual(void_type().qualifiers, Qualifiers(0))
t = void_type(Qualifiers.CONST | Qualifiers.VOLATILE)
self.assertEqual(t.qualifiers, Qualifiers.CONST | Qualifiers.VOLATILE)
self.assertEqual(
repr(t), "void_type(qualifiers=<Qualifiers.VOLATILE|CONST: 3>)"
)
self.assertEqual(t.qualified(Qualifiers.ATOMIC), void_type(Qualifiers.ATOMIC))
self.assertEqual(t.unqualified(), void_type())
self.assertEqual(t.qualified(Qualifiers(0)), t.unqualified())
self.assertRaisesRegex(TypeError, "expected Qualifiers or None", void_type, 1.5)
def test_language(self):
self.assertEqual(void_type(language=None).language, DEFAULT_LANGUAGE)
self.assertEqual(void_type(language=Language.C).language, Language.C)
def test_cmp(self):
self.assertEqual(void_type(), void_type())
self.assertEqual(void_type(Qualifiers.CONST), void_type(Qualifiers.CONST))
self.assertNotEqual(void_type(), void_type(Qualifiers.CONST))
self.assertNotEqual(void_type(), int_type("int", 4, True))
self.assertNotEqual(void_type(), 1)
self.assertNotEqual(1, void_type())
class TestTypeEnumerator(unittest.TestCase):
def test_init(self):
e = TypeEnumerator("a", 1)
self.assertEqual(e.name, "a")
self.assertEqual(e.value, 1)
self.assertRaises(TypeError, TypeEnumerator, "a", None)
self.assertRaises(TypeError, TypeEnumerator, None, 1)
def test_repr(self):
e = TypeEnumerator("a", 1)
self.assertEqual(repr(e), "TypeEnumerator('a', 1)")
def test_sequence(self):
e = TypeEnumerator("a", 1)
name, value = e
self.assertEqual(name, "a")
self.assertEqual(value, 1)
self.assertEqual(list(e), ["a", 1])
def test_cmp(self):
self.assertEqual(TypeEnumerator("a", 1), TypeEnumerator(name="a", value=1))
self.assertNotEqual(TypeEnumerator("a", 1), TypeEnumerator("a", 2))
self.assertNotEqual(TypeEnumerator("b", 1), TypeEnumerator("a", 1))
class TestTypeMember(unittest.TestCase):
def test_init(self):
m = TypeMember(void_type())
self.assertEqual(m.type, void_type())
self.assertIsNone(m.name)
self.assertEqual(m.bit_offset, 0)
self.assertEqual(m.offset, 0)
self.assertEqual(m.bit_field_size, 0)
m = TypeMember(void_type(), "foo")
self.assertEqual(m.type, void_type())
self.assertEqual(m.name, "foo")
self.assertEqual(m.bit_offset, 0)
self.assertEqual(m.offset, 0)
self.assertEqual(m.bit_field_size, 0)
m = TypeMember(void_type(), "foo", 8)
self.assertEqual(m.type, void_type())
self.assertEqual(m.name, "foo")
self.assertEqual(m.bit_offset, 8)
self.assertEqual(m.offset, 1)
self.assertEqual(m.bit_field_size, 0)
m = TypeMember(void_type(), "foo", 9, 7)
self.assertEqual(m.type, void_type())
self.assertEqual(m.name, "foo")
self.assertEqual(m.bit_offset, 9)
self.assertRaises(ValueError, getattr, m, "offset")
self.assertEqual(m.bit_field_size, 7)
self.assertRaises(TypeError, TypeMember, None)
self.assertRaises(TypeError, TypeMember, void_type(), 1)
self.assertRaises(TypeError, TypeMember, void_type(), "foo", None)
self.assertRaises(TypeError, TypeMember, void_type(), "foo", 0, None)
def test_callable(self):
m = TypeMember(void_type)
self.assertEqual(m.type, void_type())
m = TypeMember(lambda: int_type("int", 4, True))
self.assertEqual(m.type, int_type("int", 4, True))
m = TypeMember(lambda: None)
self.assertRaises(TypeError, getattr, m, "type")
def test_repr(self):
m = TypeMember(type=void_type, name="foo")
self.assertEqual(
repr(m), "TypeMember(type=void_type(), name='foo', bit_offset=0)"
)
m = TypeMember(type=void_type, bit_field_size=4)
self.assertEqual(
repr(m),
"TypeMember(type=void_type(), name=None, bit_offset=0, bit_field_size=4)",
)
m = TypeMember(lambda: None)
self.assertRaises(TypeError, repr, m)
def test_cmp(self):
self.assertEqual(TypeMember(void_type()), TypeMember(void_type(), None, 0, 0))
self.assertEqual(
TypeMember(bit_offset=9, bit_field_size=7, type=void_type, name="foo"),
TypeMember(void_type(), "foo", 9, 7),
)
self.assertNotEqual(
TypeMember(int_type("int", 4, True)), TypeMember(void_type(), None, 0, 0)
)
self.assertNotEqual(
TypeMember(void_type(), "foo"), TypeMember(void_type(), None, 0, 0)
)
self.assertNotEqual(
TypeMember(void_type(), bit_offset=8), TypeMember(void_type(), None, 0, 0)
)
self.assertNotEqual(
TypeMember(void_type(), bit_field_size=8),
TypeMember(void_type(), None, 0, 0),
)
class TestTypeParameter(unittest.TestCase):
def test_init(self):
p = TypeParameter(void_type())
self.assertEqual(p.type, void_type())
self.assertIsNone(p.name)
p = TypeParameter(void_type(), "foo")
self.assertEqual(p.type, void_type())
self.assertEqual(p.name, "foo")
self.assertRaises(TypeError, TypeParameter, None)
self.assertRaises(TypeError, TypeParameter, void_type(), 1)
def test_callable(self):
p = TypeParameter(void_type)
self.assertEqual(p.type, void_type())
p = TypeParameter(lambda: int_type("int", 4, True))
self.assertEqual(p.type, int_type("int", 4, True))
p = TypeParameter(lambda: None)
self.assertRaises(TypeError, getattr, p, "type")
def test_repr(self):
p = TypeParameter(type=void_type, name="foo")
self.assertEqual(repr(p), "TypeParameter(type=void_type(), name='foo')")
p = TypeParameter(type=void_type)
self.assertEqual(repr(p), "TypeParameter(type=void_type(), name=None)")
p = TypeParameter(lambda: None)
self.assertRaises(TypeError, repr, p)
def test_cmp(self):
self.assertEqual(TypeParameter(void_type()), TypeParameter(void_type(), None))
self.assertEqual(
TypeParameter(name="foo", type=void_type), TypeParameter(void_type(), "foo")
)
self.assertNotEqual(
TypeParameter(int_type("int", 4, True)), TypeParameter(void_type(), None)
)
self.assertNotEqual(
TypeParameter(void_type(), "foo"), TypeParameter(void_type(), None)
)