allow double bang (double boolean_not) - Githubissues

niv / neverwinter.nim

CLI tools and nim library used in Neverwinter Nights: Enhanced Edition development

MIT License

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allow double bang (double boolean_not) #129

Closed tinygiant98 closed 3 months ago

tinygiant98 commented 3 months ago

Allows double boolean_not (!!x) without requiring the second booelan_not to be enclosed in parenthesis (i.e. !(!x)).

Testing

Tested the following use cases:

Single bang (boolean_not) -> !x
Double bang -> !!x
Parenthesized double bang -> !(!x)
Multiple bangs -> !!!x
Passed as a parameter -> my_function(!!x)

Changelog

Added

Allow use of double-bang to "booleanize" a constant/variable integer value without requiring the second boolean negation to be parenthesized.

Licence

[x] I am licencing my change under the project's MIT licence, including all changes to GPL-3.0 licenced parts of the codebase.

tinygiant98 commented 3 months ago

Exceptionally minor changes could also allow the following constructs, but I didn't add them in because they could be useless/confusing/undesired:

Double unary negation (- -7)
Boolean_not followed by decrement (!--)
Boolean_not followed by increment (!++)

If anyone thinks these would be useful/desireable, I can add them in.