20f5baffa7
This leads to more consistent formatting across entire Aiken programs. Before that commit, only long expressions would be formatted on a newline, causing non-consistent formatting and additional reading barrier when looking at source code. Programs also now take more vertical space, which is better for more friendly diffing in version control systems (especially git).
28 lines
488 B
Plaintext
28 lines
488 B
Plaintext
// Could possibly be forbidden by the parser instead if we have no intent to support that.
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pub fn choice(self: List<Option<a>>) -> Option<a> {
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when self is {
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[] ->
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None
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[Some(_) as result, ..] ->
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result
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[None, ..others] ->
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choice(others)
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}
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}
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test choice_1() {
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choice([Some(14), Some(42)]) == Some(14)
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}
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test choice_2() {
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choice([]) == None
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}
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test choice_3() {
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choice([None]) == None
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}
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test choice_4() {
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choice([None, Some(42)]) == Some(42)
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}
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