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GhostReturns decorator does not typecheck #28

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marcoeilers opened this issue Jun 28, 2016 · 1 comment

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marcoeilers commented Jun 28, 2016

Originally reported by: Vytautas Astrauskas (Bitbucket: vakaras, GitHub: vakaras)

The following:

#!python

from py2viper_contracts.contracts import *
from typing import Tuple


@GhostReturns(2)
def test() -> Tuple[int, int, int]:
    return 1, 2, 3

fails with error:

#!pytb
> bin/py2viper --log debug --verifier silicon tests/verification/issues/00028.py
Translation failed
tests/verification/issues/00028.py:5: error: Argument 1 has incompatible type Callable[[], Tuple[int, int, int]]; expected None
JVM activity report     :
        classes loaded       : 118
JVM has been shutdown

Bitbucket: https://bitbucket.org/viperproject/py2viper-translation/issue/28

The text was updated successfully, but these errors were encountered:

Owner Author

marcoeilers commented Jul 4, 2016

Original comment by Marco Eilers (Bitbucket: meilers, GitHub: meilers):

This is a symptom of mypy bug 1551 (python/mypy#1551).

marcoeilers added major bug labels

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