bjpop / language-python

A parser for Python 2.x and 3.x written in Haskell

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Absent of python 3.8 feature "assignment expression" #65

Open JackAllTrades-MoN opened 3 years ago

JackAllTrades-MoN commented 3 years ago

Summary

Assignment expression (https://www.python.org/dev/peps/pep-0572/) is not yet available on language-python.

result on ghci

*PyParser> import qualified Language.Python.Version3.Parser as PyParser
*PyParser> PyParser.parseExpr "print(x := 2)" ""
Left (UnexpectedToken (ColonToken {token_span = SpanPoint {span_filename = "", span_row = 1, span_column = 9}}))

example on python3.8
```
>>> print(x := 2)
2
```

Note

If you don't mind, I'll send a PR of this issue later. Please, check if it looks ok.

bjpop commented 3 years ago

Thanks @JackAllTrades-MoN.

PR would be appreciated. If possible, please include test cases as well.

Cheers!