[case testGenericFunction] from typing import TypeVar, List T = TypeVar('T') def f(x: T) -> T: return x def g(x: List[T]) -> List[T]: return [x[0]] def h(x: int, y: List[int]) -> None: x = f(x) y = g(y) [out] def f(x): x :: object L0: return x def g(x): x :: list r0 :: object r1 :: list r2, r3 :: ptr L0: r0 = CPyList_GetItemShort(x, 0) r1 = PyList_New(1) r2 = get_element_ptr r1 ob_item :: PyListObject r3 = load_mem r2 :: ptr* set_mem r3, r0 :: builtins.object* keep_alive r1 return r1 def h(x, y): x :: int y :: list r0, r1 :: object r2 :: int r3 :: list L0: r0 = box(int, x) r1 = f(r0) r2 = unbox(int, r1) x = r2 r3 = g(y) y = r3 return 1 [case testGenericAttrAndTypeApplication] from typing import TypeVar, Generic T = TypeVar('T') class C(Generic[T]): x: T def f() -> None: c = C[int]() c.x = 1 2 + c.x [out] def f(): r0, c :: __main__.C r1 :: object r2 :: bool r3 :: object r4, r5 :: int L0: r0 = C() c = r0 r1 = object 1 c.x = r1; r2 = is_error r3 = borrow c.x r4 = unbox(int, r3) r5 = CPyTagged_Add(4, r4) keep_alive c return 1 [case testGenericMethod] from typing import TypeVar, Generic T = TypeVar('T') class C(Generic[T]): x: T def __init__(self, x: T) -> None: self.x = x def get(self) -> T: return self.x def set(self, y: T) -> None: self.x = y def f(x: C[int]) -> None: y = x.get() x.set(y + 1) x = C(2) [out] def C.__init__(self, x): self :: __main__.C x :: object r0 :: bool L0: self.x = x; r0 = is_error return 1 def C.get(self): self :: __main__.C r0 :: object L0: r0 = self.x return r0 def C.set(self, y): self :: __main__.C y :: object r0 :: bool L0: self.x = y; r0 = is_error return 1 def f(x): x :: __main__.C r0 :: object r1, y, r2 :: int r3 :: object r4 :: None r5 :: object r6 :: __main__.C L0: r0 = x.get() r1 = unbox(int, r0) y = r1 r2 = CPyTagged_Add(y, 2) r3 = box(int, r2) r4 = x.set(r3) r5 = object 2 r6 = C(r5) x = r6 return 1 [case testMax] from typing import TypeVar T = TypeVar('T') def f(x: T, y: T) -> T: return max(x, y) [out] def f(x, y): x, y, r0 :: object r1 :: int32 r2 :: bit r3 :: bool r4 :: object L0: r0 = PyObject_RichCompare(y, x, 4) r1 = PyObject_IsTrue(r0) r2 = r1 >= 0 :: signed r3 = truncate r1: int32 to builtins.bool if r3 goto L1 else goto L2 :: bool L1: r4 = y goto L3 L2: r4 = x L3: return r4