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637 lines (604 loc) · 11.1 KB
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-- Test cases related to classes for the semantic analyzer.
[case testSimpleClass]
class A: pass
x = A
[out]
MypyFile:1(
ClassDef:1(
A
PassStmt:1())
AssignmentStmt:2(
NameExpr(x* [__main__.x])
NameExpr(A [__main__.A])))
[case testMethods]
class A:
def __init__(self, x):
y = x
def f(self):
y = self
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(self)
Var(x))
Block:3(
AssignmentStmt:3(
NameExpr(y* [l])
NameExpr(x [l]))))
FuncDef:4(
f
Args(
Var(self))
Block:5(
AssignmentStmt:5(
NameExpr(y* [l])
NameExpr(self [l]))))))
[case testMemberDefinitionInInit]
class A:
def __init__(self):
self.x = 1
self.y = 2
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(self))
Block:3(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(self [l])
x*)
IntExpr(1))
AssignmentStmt:4(
MemberExpr:4(
NameExpr(self [l])
y*)
IntExpr(2))))))
[case testMemberAssignmentViaSelfOutsideInit]
class A:
def f(self):
self.x = 1
def __init__(self):
self.y = 1
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
f
Args(
Var(self))
Block:3(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(self [l])
x*)
IntExpr(1)))))
FuncDef:4(
__init__
Args(
Var(self))
Block:5(
AssignmentStmt:5(
MemberExpr:5(
NameExpr(self [l])
y)
IntExpr(1)))))
[case testMemberAssignmentNotViaSelf]
class A:
def __init__(x, self):
self.y = 1 # not really self
class B:
def __init__(x):
self = x
self.z = 1
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(x)
Var(self))
Block:3(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(self [l])
y)
IntExpr(1)))))
ClassDef:4(
B
FuncDef:5(
__init__
Args(
Var(x))
Block:6(
AssignmentStmt:6(
NameExpr(self* [l])
NameExpr(x [l]))
AssignmentStmt:7(
MemberExpr:7(
NameExpr(self [l])
z)
IntExpr(1))))))
[case testNonStandardNameForSelfAndInit]
class A:
def __init__(x):
x.y = 1
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(x))
Block:3(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(x [l])
y*)
IntExpr(1))))))
[case testAssignmentAfterAttributeInit]
class A:
def __init__(self):
self.x = 1
self.x = 2
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(self))
Block:3(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(self [l])
x*)
IntExpr(1))
AssignmentStmt:4(
MemberExpr:4(
NameExpr(self [l])
x)
IntExpr(2))))))
[case testOverloadedMethod]
from typing import overload
class A:
@overload
def f(self) -> None: self
@overload
def f(self, x: 'A') -> None: self
def f(self, *args): self
[out]
MypyFile:1(
ImportFrom:1(typing, [overload])
ClassDef:2(
A
OverloadedFuncDef:3(
FuncDef:7(
f
Args(
Var(self))
VarArg(
Var(args))
Block:7(
ExpressionStmt:7(
NameExpr(self [l]))))
Overload(def (self: __main__.A), \
def (self: __main__.A, x: __main__.A))
Decorator:3(
Var(f)
NameExpr(overload [typing.overload])
FuncDef:4(
f
Args(
Var(self))
def (self: __main__.A)
Block:4(
ExpressionStmt:4(
NameExpr(self [l])))))
Decorator:5(
Var(f)
NameExpr(overload [typing.overload])
FuncDef:6(
f
Args(
Var(self)
Var(x))
def (self: __main__.A, x: __main__.A)
Block:6(
ExpressionStmt:6(
NameExpr(self [l]))))))))
[case testAttributeWithoutType]
class A:
a = object
[out]
MypyFile:1(
ClassDef:1(
A
AssignmentStmt:2(
NameExpr(a* [m])
NameExpr(object [builtins.object]))))
[case testDataAttributeRefInClassBody]
class A:
x = 1
y = x
[out]
MypyFile:1(
ClassDef:1(
A
AssignmentStmt:2(
NameExpr(x [m])
IntExpr(1)
builtins.int)
AssignmentStmt:3(
NameExpr(y* [m])
NameExpr(x [__main__.A.x]))))
[case testMethodRefInClassBody]
class A:
def f(self): pass
g = f
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
f
Args(
Var(self))
Block:2(
PassStmt:2()))
AssignmentStmt:3(
NameExpr(g* [m])
NameExpr(f [__main__.A.f]))))
[case testIfStatementInClassBody]
class A:
if A:
x = 1
else:
x = 2
[out]
MypyFile:1(
ClassDef:1(
A
IfStmt:2(
If(
NameExpr(A [__main__.A]))
Then(
AssignmentStmt:3(
NameExpr(x [m])
IntExpr(1)
builtins.int))
Else(
AssignmentStmt:5(
NameExpr(x [__main__.A.x])
IntExpr(2))))))
[case testForStatementInClassBody]
class A:
for x in [1, 2]:
y = x
[out]
MypyFile:1(
ClassDef:1(
A
ForStmt:2(
NameExpr(x* [m])
ListExpr:2(
IntExpr(1)
IntExpr(2))
Block:3(
AssignmentStmt:3(
NameExpr(y* [m])
NameExpr(x [__main__.A.x]))))))
[case testReferenceToClassWithinFunction]
def f():
class A: pass
A
[out]
MypyFile:1(
FuncDef:1(
f
Block:2(
ClassDef:2(
A
PassStmt:2())
ExpressionStmt:3(
NameExpr(A [__main__.A@2])))))
[case testReferenceToClassWithinClass]
class A:
class B: pass
B
[out]
MypyFile:1(
ClassDef:1(
A
ClassDef:2(
B
PassStmt:2())
ExpressionStmt:3(
NameExpr(B [__main__.A.B]))))
[case testClassWithBaseClassWithinClass]
class A:
class B: pass
class C(B): pass
[out]
MypyFile:1(
ClassDef:1(
A
ClassDef:2(
B
PassStmt:2())
ClassDef:3(
C
BaseType(
__main__.A.B)
PassStmt:3())))
[case testDeclarationReferenceToNestedClass]
def f() -> None:
class A: pass
x = None # type: A
[out]
MypyFile:1(
FuncDef:1(
f
def ()
Block:2(
ClassDef:2(
A
PassStmt:2())
AssignmentStmt:3(
NameExpr(x [l])
NameExpr(None [builtins.None])
__main__.A@2))))
[case testAccessToLocalInOuterScopeWithinNestedClass]
def f(x):
class A:
y = x
def g(self):
z = x
[out]
MypyFile:1(
FuncDef:1(
f
Args(
Var(x))
Block:2(
ClassDef:2(
A
AssignmentStmt:3(
NameExpr(y* [m])
NameExpr(x [l]))
FuncDef:4(
g
Args(
Var(self))
Block:5(
AssignmentStmt:5(
NameExpr(z* [l])
NameExpr(x [l]))))))))
[case testQualifiedMetaclass]
import abc
class A(metaclass=abc.ABCMeta): pass
[out]
MypyFile:1(
Import:1(abc)
ClassDef:2(
A
Keywords(metaclass=MemberExpr:2(
NameExpr(abc)
ABCMeta [abc.ABCMeta]))
Metaclass(MemberExpr:2(
NameExpr(abc)
ABCMeta [abc.ABCMeta]))
PassStmt:2()))
[case testStaticMethod]
class A:
@staticmethod
def f(z: int) -> str: pass
[builtins fixtures/staticmethod.pyi]
[out]
MypyFile:1(
ClassDef:1(
A
Decorator:2(
Var(f)
FuncDef:3(
f
Args(
Var(z))
def (z: builtins.int) -> builtins.str
Static
Block:3(
PassStmt:3())))))
[case testStaticMethodWithNoArgs]
class A:
@staticmethod
def f() -> str: pass
[builtins fixtures/staticmethod.pyi]
[out]
MypyFile:1(
ClassDef:1(
A
Decorator:2(
Var(f)
FuncDef:3(
f
def () -> builtins.str
Static
Block:3(
PassStmt:3())))))
[case testClassMethod]
class A:
@classmethod
def f(cls, z: int) -> str: pass
[builtins fixtures/classmethod.pyi]
[out]
MypyFile:1(
ClassDef:1(
A
Decorator:2(
Var(f)
FuncDef:3(
f
Args(
Var(cls)
Var(z))
def (cls: type[__main__.A], z: builtins.int) -> builtins.str
Class
Block:3(
PassStmt:3())))))
[case testClassMethodWithNoArgs]
class A:
@classmethod
def f(cls) -> str: pass
[builtins fixtures/classmethod.pyi]
[out]
MypyFile:1(
ClassDef:1(
A
Decorator:2(
Var(f)
FuncDef:3(
f
Args(
Var(cls))
def (cls: type[__main__.A]) -> builtins.str
Class
Block:3(
PassStmt:3())))))
[case testProperty]
import typing
class A:
@property
def f(self) -> str: pass
[builtins fixtures/property.pyi]
[out]
MypyFile:1(
Import:1(typing)
ClassDef:2(
A
Decorator:3(
Var(f)
FuncDef:4(
f
Args(
Var(self))
def (self: __main__.A) -> builtins.str
Property
Block:4(
PassStmt:4())))))
[case testClassDecorator]
import typing
@object
class A: pass
[out]
MypyFile:1(
Import:1(typing)
ClassDef:3(
A
Decorators(
NameExpr(object [builtins.object]))
PassStmt:3()))
[case testClassAttributeAsMethodDefaultArgumentValue]
import typing
class A:
X = 1
def f(self, x : int = X) -> None: pass
[out]
MypyFile:1(
Import:1(typing)
ClassDef:2(
A
AssignmentStmt:3(
NameExpr(X [m])
IntExpr(1)
builtins.int)
FuncDef:4(
f
Args(
Var(self)
default(
Var(x)
NameExpr(X [__main__.A.X])))
def (self: __main__.A, x: builtins.int =)
Block:4(
PassStmt:4()))))
[case testInvalidBaseClass]
from typing import Any, Callable
class A(None): pass
class B(Any): pass
class C(Callable[[], int]): pass
[out]
main:3: error: Invalid base class "None"
main:5: error: Invalid base class "Callable"
[case testTupleAsBaseClass]
import m
[file m.pyi]
from typing import Tuple
class A(Tuple[int, str]): pass
[builtins fixtures/tuple.pyi]
[out]
MypyFile:1(
Import:2(m))
MypyFile:1(
tmp/m.pyi
ImportFrom:1(typing, [Tuple])
ClassDef:2(
A
TupleType(
tuple[builtins.int, builtins.str])
BaseType(
builtins.tuple[builtins.int | builtins.str, ...])
PassStmt:2()))
[case testBaseClassFromIgnoredModule]
import m # type: ignore
class B(m.A):
pass
[out]
MypyFile:1(
Import:1(m)
ClassDef:2(
B
FallbackToAny
PassStmt:3())
IgnoredLines(1))
[case testBaseClassFromIgnoredModuleUsingImportFrom]
from m import A # type: ignore
class B(A, int):
pass
[out]
MypyFile:1(
ImportFrom:1(m, [A])
ClassDef:2(
B
FallbackToAny
BaseType(
builtins.int)
PassStmt:3())
IgnoredLines(1))
[case testBaseClassWithExplicitAnyType]
from typing import Any
A = 1 # type: Any
class B(A):
pass
[out]
MypyFile:1(
ImportFrom:1(typing, [Any])
AssignmentStmt:2(
NameExpr(A [__main__.A])
IntExpr(1)
Any)
ClassDef:3(
B
FallbackToAny
PassStmt:4()))