Parse nested closure with two consecutive parameter lists properly #44484
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carols10cents
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Parse nested closure with two consecutive parameter lists properly This is a followup of #44332. --- Currently, in nightly, this does not compile: ```rust fn main() { let f = |_||x, y| x+y; println!("{}", f(())(1, 2)); // should print 3 } ``` `|_||x, y| x+y` should be parsed as `|_| (|x, y| x+y)`, but the parser didn't accept `||` between `_` and `x`. This patch fixes the problem. r? @petrochenkov
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☀️ Test successful - status-appveyor, status-travis |
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This is a followup of #44332.
Currently, in nightly, this does not compile:
|_||x, y| x+yshould be parsed as|_| (|x, y| x+y), but the parser didn't accept||between_andx. This patch fixes the problem.r? @petrochenkov