Rollup merge of rust-lang#96149 - est31:remove_unused_macro_matchers, r=petrochenkov

Remove unused macro rules

Removes rules of internal macros that weren't triggered.

Author: Dylan-DPC

core/src/internal_macros.rs

@@ -1,10 +1,6 @@
 // implements the unary operator "op &T"
 // based on "op T" where T is expected to be `Copy`able
 macro_rules! forward_ref_unop {
-    (impl $imp:ident, $method:ident for $t:ty) => {
-        forward_ref_unop!(impl $imp, $method for $t,
-                #[stable(feature = "rust1", since = "1.0.0")]);
-    };
     (impl const $imp:ident, $method:ident for $t:ty) => {
         forward_ref_unop!(impl const $imp, $method for $t,
                 #[stable(feature = "rust1", since = "1.0.0")]);
@@ -38,10 +34,6 @@ macro_rules! forward_ref_unop {
 // implements binary operators "&T op U", "T op &U", "&T op &U"
 // based on "T op U" where T and U are expected to be `Copy`able
 macro_rules! forward_ref_binop {
-    (impl $imp:ident, $method:ident for $t:ty, $u:ty) => {
-        forward_ref_binop!(impl $imp, $method for $t, $u,
-                #[stable(feature = "rust1", since = "1.0.0")]);
-    };
     (impl const $imp:ident, $method:ident for $t:ty, $u:ty) => {
         forward_ref_binop!(impl const $imp, $method for $t, $u,
                 #[stable(feature = "rust1", since = "1.0.0")]);
@@ -230,22 +222,6 @@ macro_rules! cfg_if {
         }
     };
 
-    // match if/else chains lacking a final `else`
-    (
-        if #[cfg( $i_meta:meta )] { $( $i_tokens:tt )* }
-        $(
-            else if #[cfg( $e_meta:meta )] { $( $e_tokens:tt )* }
-        )*
-    ) => {
-        cfg_if! {
-            @__items () ;
-            (( $i_meta ) ( $( $i_tokens )* )) ,
-            $(
-                (( $e_meta ) ( $( $e_tokens )* )) ,
-            )*
-        }
-    };
-
     // Internal and recursive macro to emit all the items
     //
     // Collects all the previous cfgs in a list at the beginning, so they can be

core/tests/num/ops.rs

@@ -43,18 +43,6 @@ macro_rules! impls_defined {
 }
 
 macro_rules! test_op {
-    ($fn_name:ident, $op:ident::$method:ident($lhs:literal, $rhs:literal), $result:literal, $($t:ty),+) => {
-        #[test]
-        fn $fn_name() {
-            impls_defined!($op, $method($lhs, $rhs), $result, $($t),+);
-        }
-    };
-    ($fn_name:ident, $op:ident::$method:ident(&mut $lhs:literal, $rhs:literal), $result:literal, $($t:ty),+) => {
-        #[test]
-        fn $fn_name() {
-            impls_defined!($op, $method(&mut $lhs, $rhs), $result, $($t),+);
-        }
-    };
     ($fn_name:ident, $op:ident::$method:ident($lhs:literal), $result:literal, $($t:ty),+) => {
         #[test]
         fn $fn_name() {

proc_macro/src/quote.rs

@@ -12,7 +12,6 @@ macro_rules! quote_tt {
     ({$($t:tt)*}) => { Group::new(Delimiter::Brace, quote!($($t)*)) };
     (,) => { Punct::new(',', Spacing::Alone) };
     (.) => { Punct::new('.', Spacing::Alone) };
-    (:) => { Punct::new(':', Spacing::Alone) };
     (;) => { Punct::new(';', Spacing::Alone) };
     (!) => { Punct::new('!', Spacing::Alone) };
     (<) => { Punct::new('<', Spacing::Alone) };