File: commandline.test

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-- Test cases for invoking mypyc on the command line
--
-- These are slow -- do not add test cases unless you have a very good reason to do so.

[case testCompileMypyc]
# cmd: a.py b.py p/__init__.py p/q.py
import os.path
import p
import p.q
import a
import b
print('<main>', b.g(a.A()))
try:
    a.f('')
except TypeError:
    pass
else:
    assert False
for x in [a, b, p, p.q]:
    assert os.path.splitext(x.__file__)[1] != '.py'
[file z.py]

[file a.py]
import b
import c
from p import s
from typing import NamedTuple

print('<a>', ord('A') == 65)  # Test full builtins

class A:
    def __init__(self) -> None:
        self.x = 4

def f(x: int) -> b.B:
    return b.B(x)

class B:
    def __init__(self, x: int, y: str) -> None:
        self.x = x

print('<a>', f(5).x)
print('<c>', c.foo())
assert s.bar(10) == 20

class NT(NamedTuple):
    x: int

print(NT(2))

[file b.py]
import a
import p.q

class B:
    def __init__(self, x: int) -> None:
        self.x = x

def g(z: 'a.A') -> int:
    return p.q.foo(z.x)

print('<b>', 'here')

[file c.py]
def foo() -> int:
    return 10

[file p/__init__.py]

[file p/q.py]
import p.r
def foo(x: int) -> int:
    return x*p.r.foo(x)

[file p/r.py]
def foo(x: int) -> int:
    return x

[file p/s.py]
def bar(x: int) -> int:
    return x*2

[out]
<b> here
<a> True
<a> 5
<c> 10
NT(x=2)
<main> 16

-- This test is here so we can turn it on when we get nervous about
-- this case, but is disabled for speed reasons.
[case testCompileMypycOne-skip]
# cmd: a.py
import os.path
import a
assert os.path.splitext(a.__file__)[1] != '.py'
assert a.f(10) == 100

[file a.py]
def f(x: int) -> int:
    return x*x

[case testErrorOutput1]
# cmd: test.py

[file test.py]
from functools import singledispatch
from mypy_extensions import trait
from typing import Any

def decorator(x: Any) -> Any:
    return x

class NeverMetaclass(type):  # E: Inheriting from most builtin types is unimplemented \
                             # N: Potential workaround: @mypy_extensions.mypyc_attr(native_class=False) \
                             # N: https://mypyc.readthedocs.io/en/stable/native_classes.html#defining-non-native-classes
    pass

class Concrete1:
    pass

@trait
class Trait1:
    pass

class Concrete2:
    pass

@decorator
class NonExt(Concrete1):  # E: Non-extension classes may not inherit from extension classes
    pass

class NopeMultipleInheritanceAndBadOrder3(Trait1, Concrete1, Concrete2):  # E: Non-trait base must appear first in parent list
    pass

class NopeBadOrder(Trait1, Concrete2):  # E: Non-trait base must appear first in parent list
    pass

class Foo:
    pass

@singledispatch
def a(arg) -> None:
    pass

@decorator # E: Calling decorator after registering function not supported
@a.register
def g(arg: int) -> None:
    pass

@a.register
@decorator
def h(arg: str) -> None:
    pass

@decorator
@decorator # E: Calling decorator after registering function not supported
@a.register
def i(arg: Foo) -> None:
    pass

[case testErrorOutput2]
# cmd: test.py

[file test.py]
from typing import Final, List, Any, AsyncIterable
from mypy_extensions import trait, mypyc_attr

def busted(b: bool) -> None:
    for i in range(1, 10, 0):  # E: range() step can't be zero
        try:
            if i == 5:
                break  # E: break inside try/finally block is unimplemented
            elif i == 4:
                continue  # E: continue inside try/finally block is unimplemented
        finally:
            print('oops')

print(sum([1,2,3]))

x = [1,2]

class Foo:
    a, b = (10, 20)  # E: Only assignment to variables is supported in class bodies
    x[0] = 10  # E: Only assignment to variables is supported in class bodies
    lol = 20
    l = [10]  # W: Unsupported default attribute value
    c = d = 50  # E: Multiple assignment in class bodies not supported

    if 1+1 == 2:  # E: Unsupported statement in class body
        x = 10

Foo.lol = 50  # E: Only class variables defined as ClassVar can be assigned to

def decorator(x: Any) -> Any:
    return x

class Concrete1:
    pass

@trait
class PureTrait:
    pass

@trait
class Trait1:
    pass

class Concrete2:
    pass

@trait
class Trait2(Concrete2):
    pass

class NopeMultipleInheritance(Concrete1, Concrete2):  # E: Multiple inheritance is not supported (except for traits)
    pass

class NopeMultipleInheritanceAndBadOrder(Concrete1, Trait1, Concrete2):  # E: Multiple inheritance is not supported (except for traits)
    pass

class NopeMultipleInheritanceAndBadOrder2(Concrete1, Concrete2, Trait1):  # E: Multiple inheritance is not supported (except for traits)
    pass

@decorator
class NonExt2:
    @property  # E: Property setters not supported in non-extension classes
    def test(self) -> int:
        return 0

    @test.setter
    def test(self, x: int) -> None:
        pass

iterator_warning = (i+1 for i in range(10))  # W: Treating generator comprehension as list

# But we don't want warnings for these cases:
tup = tuple(i+1 for i in range(10))
a_str = " ".join(str(i) for i in range(10))
wtvr = next(i for i in range(10) if i == 5)

d1 = {1: 2}

# Since PR 18180, the following pattern should pose no problems anymore:
def f(l: List[object]) -> None:
    x = None
    for i in l:
        if x is None:
            x = i

@mypyc_attr(allow_interpreted_subclasses=True)
class AllowInterp1(Concrete1):  # E: Base class "test.Concrete1" does not allow interpreted subclasses
    pass

@mypyc_attr(allow_interpreted_subclasses=True)
class AllowInterp2(PureTrait):  # E: Base class "test.PureTrait" does not allow interpreted subclasses
    pass

async def async_generators() -> AsyncIterable[int]:
    yield 1  # E: async generators are unimplemented

[case testOnlyWarningOutput]
# cmd: test.py

[file test.py]
names = (str(v) for v in [1, 2, 3])  # W: Treating generator comprehension as list

[case testSubPackage]
# cmd: pkg/sub/foo.py
from pkg.sub import foo

[file pkg/__init__.py]

[file pkg/sub/__init__.py]
print("importing...")
from . import foo
print("done")

[file pkg/sub/foo.py]
print("imported foo")

[out]
importing...
imported foo
done

[case testImportFromInitPy]
# cmd: foo.py
import foo

[file pkg2/__init__.py]

[file pkg2/mod2.py]
class A:
    class B:
        pass

[file pkg1/__init__.py]
from pkg2.mod2 import A

[file foo.py]
import pkg1
from typing import TypedDict

class Eggs(TypedDict):
    obj1: pkg1.A.B

print(type(Eggs(obj1=pkg1.A.B())["obj1"]).__name__)
print(type(Eggs(obj1=pkg1.A.B())["obj1"]).__module__)

[out]
B
pkg2.mod2