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Removes unnecessary boolean operations #9361
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FMorschel
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You have changed the behavior of this code;
forceSafariVC = false
andforceWebView = true
now evaluates, incorrectly, tofalse
.I don't understand how this tripped the lint in the first place. What is wrong with using
?? <default value>
with a nullable boolean? Is there a bug in the linter?There was a problem hiding this comment.
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Not as I can see. The precedence in the operators (as I tipped in the PR description) actually does this.
The first thing that will occur is
false || forceWebView
and only thenforceSafariVC ?? expr
.https://github.com/dart-lang/sdk/blob/da5ae4786cc41812eee6f83ed1e9c5c05c15f387/pkg/_fe_analyzer_shared/lib/src/scanner/token.dart#L21-L22
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Huh, that's very unintuitive. That means that the code was unfortunately incorrect and we just hadn't noticed. Linter improvement to the rescue!
In that case the fix for the lint here is to add the parens to make the code work as intended, where
forceSafariVC ?? false
is one logical unit, and to add a test like this one for the broken case to make sure we don't regress it later.