Fix pretty printing of multi-statement closures (issue #494) #498
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…e and multiple statements
allevato
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allevato
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Fix pretty printing of multi-statement closures (issue apple#494)
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Issue #494 is related to pretty printing of multi-statement closures, and can be reproduced on
mainby formatting the following input:The pretty printer just spits out the snippet as is. This is because the first break is made elective instead of soft. Note that the closure is formatted correctly if
a inis removed.The fix that I propose (and have implemented) is forcing the break before the first statement to be
softif the closure contains multiple statements. I believe this is reasonable because there is no situation that I know of where Swift Format should format a multi-statement closure as a single-line closure ({ a + 1; a + 2 }is pretty un-idiomatic).I have added a test for this change that fails on main and succeeds after my change.
This is my first contribution to Swift Format, so please let me know if there's anything I should change about this PR or future PRs (e.g. test style).