Hugging Face's logo

Datasets:
SwashBuckler001
/
idiombench

Modalities:
Text
Formats:
json
Languages:
English
Size:
10K - 100K
Tags:
code
python
idioms
pep
Libraries:
Datasets
pandas
Polars
License:
Dataset card Data Studio Files
xet
 Community
1
idiombench / Python /val /3.13 /variadic-generics /modern_19.py
SwashBuckler001's picture
SwashBuckler001
IdiomBench (part 27)
07f4219 verified
Raw History Blame Contribute Delete
5.35 kB
"""
Tests variance of TypeVarTuple.
"""
# Specification: https://typing.readthedocs.io/en/latest/spec/generics.html#variance-inference
from typing import Generic
from typing_extensions import TypeVarTuple
class InvariantTypeVarTuple[*InOutTs]:
a: tuple[*InOutTs]
in_out_obj: InvariantTypeVarTuple[object] = InvariantTypeVarTuple[int]() # E
in_out_int: InvariantTypeVarTuple[int] = InvariantTypeVarTuple[object]() # E
in_out_int = InvariantTypeVarTuple[int]()
in_out_variadic_int: InvariantTypeVarTuple[*tuple[int, ...]] = InvariantTypeVarTuple[*tuple[object, ...]]() # E
in_out_variadic_object: InvariantTypeVarTuple[*tuple[object, ...]] = InvariantTypeVarTuple[*tuple[int, ...]]() # E
in_out_empty: InvariantTypeVarTuple[()] = InvariantTypeVarTuple[()]() # OK
in_out_fixed_from_variadic: InvariantTypeVarTuple[int] = InvariantTypeVarTuple[*tuple[int, ...]]() # E
in_out_variadic_from_fixed: InvariantTypeVarTuple[*tuple[int, ...]] = InvariantTypeVarTuple[int]() # E
class ContravariantTypeVarTuple[*InTs]:
def f(self, t: tuple[*InTs]):
raise NotImplementedError
in_obj: ContravariantTypeVarTuple[object, object] = ContravariantTypeVarTuple[object, int]() # E
in_int: ContravariantTypeVarTuple[int] = ContravariantTypeVarTuple[object]() # OK
in_variadic_int: ContravariantTypeVarTuple[*tuple[int, ...]] = ContravariantTypeVarTuple[*tuple[object, ...]]() # OK
in_variadic_object: ContravariantTypeVarTuple[*tuple[object, ...]] = ContravariantTypeVarTuple[*tuple[int, ...]]() # E
in_empty: ContravariantTypeVarTuple[()] = ContravariantTypeVarTuple[()]() # OK
in_fixed_from_variadic: ContravariantTypeVarTuple[int] = ContravariantTypeVarTuple[*tuple[int, ...]]() # OK
in_variadic_from_fixed: ContravariantTypeVarTuple[*tuple[int, ...]] = ContravariantTypeVarTuple[int]() # E
class CovariantTypeVarTuple[*OutTs]:
def f(self) -> tuple[*OutTs]:
raise NotImplementedError
out_int: CovariantTypeVarTuple[int] = CovariantTypeVarTuple[object]() # E
out_obj: CovariantTypeVarTuple[object] = CovariantTypeVarTuple[int]() # OK
out_multiple1: CovariantTypeVarTuple[int, int] = CovariantTypeVarTuple[bool, bool]() # OK
out_multiple2: CovariantTypeVarTuple[int, int] = CovariantTypeVarTuple[bool, object]() # E
out_multiple3: CovariantTypeVarTuple[int, int] = CovariantTypeVarTuple[object, bool]() # E
out_multiple4: CovariantTypeVarTuple[int, int] = CovariantTypeVarTuple[object, object]() # E
out_variadic_int: CovariantTypeVarTuple[*tuple[int, ...]] = CovariantTypeVarTuple[*tuple[object, ...]]() # E
out_variadic_object: CovariantTypeVarTuple[*tuple[object, ...]] = CovariantTypeVarTuple[*tuple[int, ...]]() # OK
out_empty: CovariantTypeVarTuple[()] = CovariantTypeVarTuple[()]() # OK
out_fixed_from_variadic: CovariantTypeVarTuple[int] = CovariantTypeVarTuple[*tuple[int, ...]]() # E
out_variadic_from_fixed: CovariantTypeVarTuple[*tuple[int, ...]] = CovariantTypeVarTuple[int]() # OK
Ts = TypeVarTuple("Ts") # OK
InferTs = TypeVarTuple("InferTs", infer_variance=True) # OK
InvTs1 = TypeVarTuple("InvTs1", covariant=True, contravariant=True) # E
InvTs2 = TypeVarTuple("InvTs2", covariant=True, infer_variance=True) # E
InvTs3 = TypeVarTuple("InvTs3", contravariant=True, infer_variance=True) # E
class InvariantTypeVarTupleOld(Generic[*Ts]):
def in_f(self, *args: *Ts) -> None: # OK
raise NotImplementedError
def out_f(self) -> tuple[*Ts]: # OK
raise NotImplementedError
obj_old: InvariantTypeVarTupleOld[object] = InvariantTypeVarTupleOld[int]() # E
int_old: InvariantTypeVarTupleOld[int] = InvariantTypeVarTupleOld[object]() # E
int_old = InvariantTypeVarTupleOld[int]()
InTs = TypeVarTuple("InTs", contravariant=True)
class ContravariantTypeVarTupleOld(Generic[*InTs]):
def in_f(self, *args: *InTs) -> None: # OK
raise NotImplementedError
def out_f(self) -> tuple[*InTs]: # E
raise NotImplementedError
in_obj_old: ContravariantTypeVarTupleOld[object] = ContravariantTypeVarTupleOld[int]() # E
in_int_old: ContravariantTypeVarTupleOld[int] = ContravariantTypeVarTupleOld[object]() # OK
OutTs = TypeVarTuple("OutTs", covariant=True)
class CovariantTypeVarTupleOld(Generic[*OutTs]):
def in_f(self, *args: *OutTs) -> None: # E
raise NotImplementedError
def out_f(self) -> tuple[*OutTs]: # OK
raise NotImplementedError
out_int_old: CovariantTypeVarTupleOld[int] = CovariantTypeVarTupleOld[object]() # E
out_obj_old: CovariantTypeVarTupleOld[object] = CovariantTypeVarTupleOld[int]() # OK
# `infer_variance=True` on a traditional `TypeVarTuple`
class InferredContravariantTypeVarTupleOld(Generic[*InferTs]):
def in_f(self, *args: *InferTs) -> None: # OK
raise NotImplementedError
infer_in_obj_old: InferredContravariantTypeVarTupleOld[object] = InferredContravariantTypeVarTupleOld[int]() # E
infer_in_int_old: InferredContravariantTypeVarTupleOld[int] = InferredContravariantTypeVarTupleOld[object]() # OK
class InferredCovariantTypeVarTupleOld(Generic[*InferTs]):
def out_f(self) -> tuple[*InferTs]: # OK
raise NotImplementedError
infer_out_int_old: InferredCovariantTypeVarTupleOld[int] = InferredCovariantTypeVarTupleOld[object]() # E
infer_out_obj_old: InferredCovariantTypeVarTupleOld[object] = InferredCovariantTypeVarTupleOld[int]() # OK