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21 lines
707 B
Rust
21 lines
707 B
Rust
// We are going to disallow `&a..=b` and `box a..=b` in a pattern. However, the
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// older ... syntax is still allowed as a stability guarantee.
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#![feature(box_patterns)]
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#![warn(ellipsis_inclusive_range_patterns)]
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fn main() {
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match Box::new(12) {
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// FIXME: can we add suggestions like `&(0..=9)`?
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box 0...9 => {}
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//~^ WARN `...` range patterns are deprecated
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//~| WARN this is accepted in the current edition
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//~| HELP use `..=` for an inclusive range
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box 10..=15 => {}
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//~^ ERROR the range pattern here has ambiguous interpretation
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//~^^ HELP add parentheses to clarify the precedence
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box (16..=20) => {}
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_ => {}
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}
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}
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