Add tests
This commit is contained in:
Nadrieril
parent
c0f3c06c6d
commit
5a3b7d2055
@ -22,11 +22,27 @@ enum NonEmptyEnum5 { //~ `NonEmptyEnum5` defined here
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V1, V2, V3, V4, V5,
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}
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macro_rules! match_empty {
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($e:expr) => {
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match $e {}
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};
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}
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macro_rules! match_false {
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($e:expr) => {
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match $e {
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_ if false => {}
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}
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};
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}
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fn foo(x: Foo) {
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match x {} // ok
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match_empty!(x); // ok
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match x {
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_ => {}, //~ ERROR unreachable pattern
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}
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match x {
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_ if false => {}, //~ ERROR unreachable pattern
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}
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}
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fn main() {
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@ -39,18 +55,33 @@ fn main() {
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Some(_) => {} //~ ERROR unreachable pattern
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}
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match 0u8 {}
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match_empty!(0u8);
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//~^ ERROR type `u8` is non-empty
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match NonEmptyStruct(true) {}
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match_empty!(NonEmptyStruct(true));
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//~^ ERROR type `NonEmptyStruct` is non-empty
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match (NonEmptyUnion1 { foo: () }) {}
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match_empty!((NonEmptyUnion1 { foo: () }));
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//~^ ERROR type `NonEmptyUnion1` is non-empty
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match (NonEmptyUnion2 { foo: () }) {}
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match_empty!((NonEmptyUnion2 { foo: () }));
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//~^ ERROR type `NonEmptyUnion2` is non-empty
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match NonEmptyEnum1::Foo(true) {}
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match_empty!(NonEmptyEnum1::Foo(true));
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//~^ ERROR pattern `Foo` of type `NonEmptyEnum1` is not handled
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match NonEmptyEnum2::Foo(true) {}
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match_empty!(NonEmptyEnum2::Foo(true));
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//~^ ERROR multiple patterns of type `NonEmptyEnum2` are not handled
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match NonEmptyEnum5::V1 {}
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match_empty!(NonEmptyEnum5::V1);
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//~^ ERROR multiple patterns of type `NonEmptyEnum5` are not handled
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match_false!(0u8);
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//~^ ERROR `_` not covered
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match_false!(NonEmptyStruct(true));
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//~^ ERROR `_` not covered
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match_false!((NonEmptyUnion1 { foo: () }));
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//~^ ERROR `_` not covered
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match_false!((NonEmptyUnion2 { foo: () }));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum1::Foo(true));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum2::Foo(true));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum5::V1);
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//~^ ERROR `_` not covered
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}
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@ -1,5 +1,5 @@
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error: unreachable pattern
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--> $DIR/match-empty-exhaustive_patterns.rs:28:9
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--> $DIR/match-empty-exhaustive_patterns.rs:41:9
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LL | _ => {},
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| ^
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@ -11,51 +11,57 @@ LL | #![deny(unreachable_patterns)]
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| ^^^^^^^^^^^^^^^^^^^^
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error: unreachable pattern
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--> $DIR/match-empty-exhaustive_patterns.rs:35:9
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--> $DIR/match-empty-exhaustive_patterns.rs:44:9
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LL | _ if false => {},
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| ^
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error: unreachable pattern
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--> $DIR/match-empty-exhaustive_patterns.rs:51:9
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LL | Some(_) => {}
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| ^^^^^^^
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error: unreachable pattern
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--> $DIR/match-empty-exhaustive_patterns.rs:39:9
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--> $DIR/match-empty-exhaustive_patterns.rs:55:9
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LL | Some(_) => {}
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| ^^^^^^^
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error[E0004]: non-exhaustive patterns: type `u8` is non-empty
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--> $DIR/match-empty-exhaustive_patterns.rs:42:11
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--> $DIR/match-empty-exhaustive_patterns.rs:58:18
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LL | match 0u8 {}
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| ^^^
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LL | match_empty!(0u8);
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| ^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyStruct` is non-empty
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--> $DIR/match-empty-exhaustive_patterns.rs:44:11
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--> $DIR/match-empty-exhaustive_patterns.rs:60:18
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LL | match NonEmptyStruct(true) {}
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| ^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyStruct(true));
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| ^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyUnion1` is non-empty
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--> $DIR/match-empty-exhaustive_patterns.rs:46:11
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--> $DIR/match-empty-exhaustive_patterns.rs:62:18
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LL | match (NonEmptyUnion1 { foo: () }) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!((NonEmptyUnion1 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyUnion2` is non-empty
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--> $DIR/match-empty-exhaustive_patterns.rs:48:11
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--> $DIR/match-empty-exhaustive_patterns.rs:64:18
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LL | match (NonEmptyUnion2 { foo: () }) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!((NonEmptyUnion2 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: pattern `Foo` of type `NonEmptyEnum1` is not handled
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--> $DIR/match-empty-exhaustive_patterns.rs:50:11
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--> $DIR/match-empty-exhaustive_patterns.rs:66:18
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LL | / enum NonEmptyEnum1 {
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LL | | Foo(bool),
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@ -63,13 +69,13 @@ LL | | Foo(bool),
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LL | | }
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| |_- `NonEmptyEnum1` defined here
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...
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LL | match NonEmptyEnum1::Foo(true) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyEnum1::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: multiple patterns of type `NonEmptyEnum2` are not handled
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--> $DIR/match-empty-exhaustive_patterns.rs:52:11
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--> $DIR/match-empty-exhaustive_patterns.rs:68:18
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LL | / enum NonEmptyEnum2 {
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LL | | Foo(bool),
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@ -79,24 +85,110 @@ LL | | Bar,
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LL | | }
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| |_- `NonEmptyEnum2` defined here
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...
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LL | match NonEmptyEnum2::Foo(true) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyEnum2::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: multiple patterns of type `NonEmptyEnum5` are not handled
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--> $DIR/match-empty-exhaustive_patterns.rs:54:11
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--> $DIR/match-empty-exhaustive_patterns.rs:70:18
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LL | / enum NonEmptyEnum5 {
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LL | | V1, V2, V3, V4, V5,
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LL | | }
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| |_- `NonEmptyEnum5` defined here
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...
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LL | match NonEmptyEnum5::V1 {}
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| ^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyEnum5::V1);
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| ^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error: aborting due to 10 previous errors
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:73:18
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LL | match_false!(0u8);
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| ^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:75:18
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LL | struct NonEmptyStruct(bool);
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| ---------------------------- `NonEmptyStruct` defined here
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...
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LL | match_false!(NonEmptyStruct(true));
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| ^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:77:18
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LL | / union NonEmptyUnion1 {
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LL | | foo: (),
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LL | | }
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| |_- `NonEmptyUnion1` defined here
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...
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LL | match_false!((NonEmptyUnion1 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:79:18
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LL | / union NonEmptyUnion2 {
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LL | | foo: (),
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LL | | bar: (),
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LL | | }
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| |_- `NonEmptyUnion2` defined here
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...
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LL | match_false!((NonEmptyUnion2 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:81:18
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LL | / enum NonEmptyEnum1 {
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LL | | Foo(bool),
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LL | | }
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| |_- `NonEmptyEnum1` defined here
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...
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LL | match_false!(NonEmptyEnum1::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:83:18
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LL | / enum NonEmptyEnum2 {
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LL | | Foo(bool),
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LL | | Bar,
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LL | | }
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| |_- `NonEmptyEnum2` defined here
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...
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LL | match_false!(NonEmptyEnum2::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty-exhaustive_patterns.rs:85:18
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LL | / enum NonEmptyEnum5 {
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LL | | V1, V2, V3, V4, V5,
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LL | | }
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| |_- `NonEmptyEnum5` defined here
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...
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LL | match_false!(NonEmptyEnum5::V1);
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| ^^^^^^^^^^^^^^^^^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error: aborting due to 18 previous errors
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For more information about this error, try `rustc --explain E0004`.
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@ -21,11 +21,23 @@ enum NonEmptyEnum5 { //~ `NonEmptyEnum5` defined here
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V1, V2, V3, V4, V5,
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}
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fn foo1(x: Foo) {
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match x {} // ok
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macro_rules! match_empty {
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($e:expr) => {
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match $e {}
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};
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}
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macro_rules! match_false {
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($e:expr) => {
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match $e {
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_ if false => {}
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}
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};
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}
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fn foo2(x: Foo) {
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fn foo(x: Foo) {
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match_empty!(x); // ok
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match_false!(x); // Not detected as unreachable nor exhaustive.
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//~^ ERROR non-exhaustive patterns: `_` not covered
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match x {
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_ => {}, // Not detected as unreachable, see #55123.
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}
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@ -42,18 +54,33 @@ fn main() {
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Some(_) => {}
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}
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match 0u8 {}
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match_empty!(0u8);
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//~^ ERROR type `u8` is non-empty
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match NonEmptyStruct(true) {}
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match_empty!(NonEmptyStruct(true));
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//~^ ERROR type `NonEmptyStruct` is non-empty
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match (NonEmptyUnion1 { foo: () }) {}
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match_empty!((NonEmptyUnion1 { foo: () }));
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//~^ ERROR type `NonEmptyUnion1` is non-empty
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match (NonEmptyUnion2 { foo: () }) {}
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match_empty!((NonEmptyUnion2 { foo: () }));
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//~^ ERROR type `NonEmptyUnion2` is non-empty
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match NonEmptyEnum1::Foo(true) {}
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match_empty!(NonEmptyEnum1::Foo(true));
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//~^ ERROR pattern `Foo` of type `NonEmptyEnum1` is not handled
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match NonEmptyEnum2::Foo(true) {}
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match_empty!(NonEmptyEnum2::Foo(true));
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//~^ ERROR multiple patterns of type `NonEmptyEnum2` are not handled
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match NonEmptyEnum5::V1 {}
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match_empty!(NonEmptyEnum5::V1);
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//~^ ERROR multiple patterns of type `NonEmptyEnum5` are not handled
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match_false!(0u8);
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//~^ ERROR `_` not covered
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match_false!(NonEmptyStruct(true));
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//~^ ERROR `_` not covered
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match_false!((NonEmptyUnion1 { foo: () }));
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//~^ ERROR `_` not covered
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match_false!((NonEmptyUnion2 { foo: () }));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum1::Foo(true));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum2::Foo(true));
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//~^ ERROR `_` not covered
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match_false!(NonEmptyEnum5::V1);
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//~^ ERROR `_` not covered
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}
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@ -1,37 +1,48 @@
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error[E0004]: non-exhaustive patterns: type `u8` is non-empty
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--> $DIR/match-empty.rs:45:11
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error[E0004]: non-exhaustive patterns: `_` not covered
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--> $DIR/match-empty.rs:39:18
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LL | match 0u8 {}
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| ^^^
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LL | enum Foo {}
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| ----------- `Foo` defined here
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...
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LL | match_false!(x); // Not detected as unreachable nor exhaustive.
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| ^ pattern `_` not covered
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `u8` is non-empty
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--> $DIR/match-empty.rs:57:18
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LL | match_empty!(0u8);
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| ^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyStruct` is non-empty
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--> $DIR/match-empty.rs:47:11
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--> $DIR/match-empty.rs:59:18
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LL | match NonEmptyStruct(true) {}
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| ^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyStruct(true));
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| ^^^^^^^^^^^^^^^^^^^^
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|
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyUnion1` is non-empty
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--> $DIR/match-empty.rs:49:11
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--> $DIR/match-empty.rs:61:18
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LL | match (NonEmptyUnion1 { foo: () }) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!((NonEmptyUnion1 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: type `NonEmptyUnion2` is non-empty
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--> $DIR/match-empty.rs:51:11
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--> $DIR/match-empty.rs:63:18
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LL | match (NonEmptyUnion2 { foo: () }) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!((NonEmptyUnion2 { foo: () }));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: pattern `Foo` of type `NonEmptyEnum1` is not handled
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--> $DIR/match-empty.rs:53:11
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--> $DIR/match-empty.rs:65:18
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LL | / enum NonEmptyEnum1 {
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LL | | Foo(bool),
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@ -39,13 +50,13 @@ LL | | Foo(bool),
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LL | | }
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| |_- `NonEmptyEnum1` defined here
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...
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LL | match NonEmptyEnum1::Foo(true) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyEnum1::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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|
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= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
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error[E0004]: non-exhaustive patterns: multiple patterns of type `NonEmptyEnum2` are not handled
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--> $DIR/match-empty.rs:55:11
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--> $DIR/match-empty.rs:67:18
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LL | / enum NonEmptyEnum2 {
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LL | | Foo(bool),
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@ -55,24 +66,110 @@ LL | | Bar,
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LL | | }
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| |_- `NonEmptyEnum2` defined here
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...
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LL | match NonEmptyEnum2::Foo(true) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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LL | match_empty!(NonEmptyEnum2::Foo(true));
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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|
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||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: multiple patterns of type `NonEmptyEnum5` are not handled
|
||||
--> $DIR/match-empty.rs:57:11
|
||||
--> $DIR/match-empty.rs:69:18
|
||||
|
|
||||
LL | / enum NonEmptyEnum5 {
|
||||
LL | | V1, V2, V3, V4, V5,
|
||||
LL | | }
|
||||
| |_- `NonEmptyEnum5` defined here
|
||||
...
|
||||
LL | match NonEmptyEnum5::V1 {}
|
||||
| ^^^^^^^^^^^^^^^^^
|
||||
LL | match_empty!(NonEmptyEnum5::V1);
|
||||
| ^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error: aborting due to 7 previous errors
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:72:18
|
||||
|
|
||||
LL | match_false!(0u8);
|
||||
| ^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:74:18
|
||||
|
|
||||
LL | struct NonEmptyStruct(bool);
|
||||
| ---------------------------- `NonEmptyStruct` defined here
|
||||
...
|
||||
LL | match_false!(NonEmptyStruct(true));
|
||||
| ^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:76:18
|
||||
|
|
||||
LL | / union NonEmptyUnion1 {
|
||||
LL | | foo: (),
|
||||
LL | | }
|
||||
| |_- `NonEmptyUnion1` defined here
|
||||
...
|
||||
LL | match_false!((NonEmptyUnion1 { foo: () }));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:78:18
|
||||
|
|
||||
LL | / union NonEmptyUnion2 {
|
||||
LL | | foo: (),
|
||||
LL | | bar: (),
|
||||
LL | | }
|
||||
| |_- `NonEmptyUnion2` defined here
|
||||
...
|
||||
LL | match_false!((NonEmptyUnion2 { foo: () }));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:80:18
|
||||
|
|
||||
LL | / enum NonEmptyEnum1 {
|
||||
LL | | Foo(bool),
|
||||
LL | | }
|
||||
| |_- `NonEmptyEnum1` defined here
|
||||
...
|
||||
LL | match_false!(NonEmptyEnum1::Foo(true));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:82:18
|
||||
|
|
||||
LL | / enum NonEmptyEnum2 {
|
||||
LL | | Foo(bool),
|
||||
LL | | Bar,
|
||||
LL | | }
|
||||
| |_- `NonEmptyEnum2` defined here
|
||||
...
|
||||
LL | match_false!(NonEmptyEnum2::Foo(true));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error[E0004]: non-exhaustive patterns: `_` not covered
|
||||
--> $DIR/match-empty.rs:84:18
|
||||
|
|
||||
LL | / enum NonEmptyEnum5 {
|
||||
LL | | V1, V2, V3, V4, V5,
|
||||
LL | | }
|
||||
| |_- `NonEmptyEnum5` defined here
|
||||
...
|
||||
LL | match_false!(NonEmptyEnum5::V1);
|
||||
| ^^^^^^^^^^^^^^^^^ pattern `_` not covered
|
||||
|
|
||||
= help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
|
||||
|
||||
error: aborting due to 15 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0004`.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user