2020-07-14 12:59:59 +00:00
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// run-rustfix
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#![warn(clippy::match_like_matches_macro)]
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2020-10-28 22:36:07 +00:00
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#![allow(unreachable_patterns, dead_code)]
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2020-07-14 12:59:59 +00:00
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fn main() {
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let x = Some(5);
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// Lint
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let _y = match x {
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Some(0) => true,
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_ => false,
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};
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// Lint
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let _w = match x {
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Some(_) => true,
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_ => false,
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};
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// Turn into is_none
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let _z = match x {
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Some(_) => false,
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None => true,
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};
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// Lint
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let _zz = match x {
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Some(r) if r == 0 => false,
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_ => true,
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};
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// Lint
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let _zzz = if let Some(5) = x { true } else { false };
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// No lint
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let _a = match x {
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Some(_) => false,
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_ => false,
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};
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// No lint
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let _ab = match x {
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Some(0) => false,
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_ => true,
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None => false,
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};
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2020-10-28 22:36:07 +00:00
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enum E {
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A(u32),
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B(i32),
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C,
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D,
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2020-12-29 22:15:53 +00:00
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}
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2020-10-28 22:36:07 +00:00
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let x = E::A(2);
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{
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// lint
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let _ans = match x {
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E::A(_) => true,
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E::B(_) => true,
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_ => false,
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};
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}
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{
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// lint
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let _ans = match x {
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E::B(_) => false,
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E::C => false,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(_) => false,
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E::B(_) => false,
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E::C => true,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(_) => true,
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E::B(_) => false,
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E::C => false,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(a) if a < 10 => false,
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E::B(a) if a < 10 => false,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(_) => false,
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E::B(a) if a < 10 => false,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(a) => a == 10,
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E::B(_) => false,
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_ => true,
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};
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}
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{
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// no lint
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let _ans = match x {
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E::A(_) => false,
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E::B(_) => true,
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_ => false,
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};
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}
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2020-07-14 12:59:59 +00:00
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}
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