deny duplicate matcher bindings by default
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237bf3244f
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@ -354,7 +354,7 @@ declare_lint! {
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declare_lint! {
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pub DUPLICATE_MATCHER_BINDING_NAME,
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Warn,
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Deny,
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"duplicate macro matcher binding name"
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}
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@ -464,6 +464,7 @@ impl LintPass for HardwiredLints {
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DEPRECATED_IN_FUTURE,
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AMBIGUOUS_ASSOCIATED_ITEMS,
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NESTED_IMPL_TRAIT,
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DUPLICATE_MATCHER_BINDING_NAME,
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)
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}
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}
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@ -6,6 +6,7 @@
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// compile-pass
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#![allow(unused_macros)]
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#![warn(duplicate_matcher_binding_name)]
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macro_rules! foo1 {
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($a:ident, $a:ident) => {}; //~WARNING duplicate matcher binding
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@ -1,15 +1,19 @@
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warning: duplicate matcher binding
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--> $DIR/macro-multiple-matcher-bindings.rs:11:6
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--> $DIR/macro-multiple-matcher-bindings.rs:12:6
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LL | ($a:ident, $a:ident) => {};
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| ^^^^^^^^ ^^^^^^^^
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= note: #[warn(duplicate_matcher_binding_name)] on by default
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note: lint level defined here
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--> $DIR/macro-multiple-matcher-bindings.rs:9:9
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LL | #![warn(duplicate_matcher_binding_name)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>
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warning: duplicate matcher binding
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--> $DIR/macro-multiple-matcher-bindings.rs:12:6
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--> $DIR/macro-multiple-matcher-bindings.rs:13:6
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LL | ($a:ident, $a:path) => {};
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| ^^^^^^^^ ^^^^^^^
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@ -18,7 +22,7 @@ LL | ($a:ident, $a:path) => {};
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= note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>
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warning: duplicate matcher binding
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--> $DIR/macro-multiple-matcher-bindings.rs:21:6
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--> $DIR/macro-multiple-matcher-bindings.rs:22:6
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LL | ($a:ident, $($a:ident),*) => {};
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| ^^^^^^^^ ^^^^^^^^
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@ -27,7 +31,7 @@ LL | ($a:ident, $($a:ident),*) => {};
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= note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>
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warning: duplicate matcher binding
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--> $DIR/macro-multiple-matcher-bindings.rs:22:8
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--> $DIR/macro-multiple-matcher-bindings.rs:23:8
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LL | ($($a:ident)+ # $($($a:path),+);*) => {};
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| ^^^^^^^^ ^^^^^^^
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