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https://github.com/rust-lang/rust-clippy
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When there are multiple macros in use, it can be difficult to tell which one was responsible for producing an error.
97 lines
3.1 KiB
Text
97 lines
3.1 KiB
Text
error: unnecessary nested match
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--> $DIR/collapsible_match2.rs:13:34
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LL | Ok(val) if make() => match val {
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| __________________________________^
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LL | | Some(n) => foo(n),
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LL | | _ => return,
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LL | | },
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| |_____________^
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= note: `-D clippy::collapsible-match` implied by `-D warnings`
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help: the outer pattern can be modified to include the inner pattern
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--> $DIR/collapsible_match2.rs:13:16
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LL | Ok(val) if make() => match val {
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| ^^^ replace this binding
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LL | Some(n) => foo(n),
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| ^^^^^^^ with this pattern
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error: unnecessary nested match
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--> $DIR/collapsible_match2.rs:20:24
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LL | Ok(val) => match val {
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| ________________________^
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LL | | Some(n) => foo(n),
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LL | | _ => return,
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LL | | },
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| |_____________^
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help: the outer pattern can be modified to include the inner pattern
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--> $DIR/collapsible_match2.rs:20:16
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LL | Ok(val) => match val {
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| ^^^ replace this binding
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LL | Some(n) => foo(n),
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| ^^^^^^^ with this pattern
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error: unnecessary nested match
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--> $DIR/collapsible_match2.rs:34:29
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LL | $pat => match $e {
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| _____________________________^
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LL | | $inner_pat => $then,
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LL | | _ => return,
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LL | | },
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| |_____________________^
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...
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LL | mac!(res_opt => Ok(val), val => Some(n), foo(n));
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| ------------------------------------------------- in this macro invocation
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help: the outer pattern can be modified to include the inner pattern
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--> $DIR/collapsible_match2.rs:46:28
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LL | mac!(res_opt => Ok(val), val => Some(n), foo(n));
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| ^^^ ^^^^^^^ with this pattern
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| |
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| replace this binding
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= note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: unnecessary nested match
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--> $DIR/collapsible_match2.rs:51:20
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LL | Some(s) => match *s {
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| ____________________^
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LL | | [n] => foo(n),
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LL | | _ => (),
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LL | | },
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| |_________^
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help: the outer pattern can be modified to include the inner pattern
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--> $DIR/collapsible_match2.rs:51:14
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LL | Some(s) => match *s {
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| ^ replace this binding
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LL | [n] => foo(n),
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| ^^^ with this pattern
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error: unnecessary nested match
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--> $DIR/collapsible_match2.rs:60:24
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LL | Some(ref s) => match &*s {
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| ________________________^
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LL | | [n] => foo(n),
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LL | | _ => (),
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LL | | },
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| |_________^
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help: the outer pattern can be modified to include the inner pattern
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--> $DIR/collapsible_match2.rs:60:14
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LL | Some(ref s) => match &*s {
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| ^^^^^ replace this binding
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LL | [n] => foo(n),
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| ^^^ with this pattern
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error: aborting due to 5 previous errors
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