if let guard stabilize

Author: Kivooeo

compiler/rustc_ast/src/lib.rs

@@ -5,10 +5,10 @@
 //! This API is completely unstable and subject to change.
 
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![doc(test(attr(deny(warnings), allow(internal_features))))]
 #![feature(associated_type_defaults)]
 #![feature(box_patterns)]
-#![feature(if_let_guard)]
 #![feature(iter_order_by)]
 #![feature(macro_metavar_expr)]
 #![recursion_limit = "256"]

compiler/rustc_ast_lowering/src/lib.rs

@@ -31,8 +31,8 @@
 //! in the HIR, especially for multiple identifiers.
 
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(box_patterns)]
-#![feature(if_let_guard)]
 // tidy-alphabetical-end
 
 use std::mem;

compiler/rustc_ast_passes/src/feature_gate.rs

@@ -481,11 +481,6 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) {
             }
         };
     }
-    gate_all!(
-        if_let_guard,
-        "`if let` guards are experimental",
-        "you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>`"
-    );
     gate_all!(
         async_trait_bounds,
         "`async` trait bounds are unstable",

compiler/rustc_ast_passes/src/lib.rs

@@ -3,8 +3,8 @@
 //! by `rustc_ast_lowering`.
 
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(box_patterns)]
-#![feature(if_let_guard)]
 #![feature(iter_intersperse)]
 #![feature(iter_is_partitioned)]
 // tidy-alphabetical-end

compiler/rustc_attr_parsing/src/lib.rs

@@ -77,8 +77,8 @@
 //! containing both `C` and `packed` annotations.
 
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(decl_macro)]
-#![feature(if_let_guard)]
 #![feature(iter_intersperse)]
 #![recursion_limit = "256"]
 // tidy-alphabetical-end

compiler/rustc_borrowck/src/lib.rs

@@ -3,10 +3,10 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![cfg_attr(bootstrap, feature(assert_matches))]
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(box_patterns)]
 #![feature(default_field_values)]
 #![feature(file_buffered)]
-#![feature(if_let_guard)]
 #![feature(negative_impls)]
 #![feature(never_type)]
 #![feature(rustc_attrs)]

compiler/rustc_builtin_macros/src/lib.rs

@@ -4,9 +4,9 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![cfg_attr(bootstrap, feature(assert_matches))]
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(box_patterns)]
 #![feature(decl_macro)]
-#![feature(if_let_guard)]
 #![feature(iter_order_by)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]

compiler/rustc_codegen_llvm/src/lib.rs

@@ -6,9 +6,9 @@
 
 // tidy-alphabetical-start
 #![cfg_attr(bootstrap, feature(assert_matches))]
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(extern_types)]
 #![feature(file_buffered)]
-#![feature(if_let_guard)]
 #![feature(impl_trait_in_assoc_type)]
 #![feature(iter_intersperse)]
 #![feature(macro_derive)]

compiler/rustc_codegen_ssa/src/lib.rs

@@ -1,8 +1,8 @@
 // tidy-alphabetical-start
 #![cfg_attr(bootstrap, feature(assert_matches))]
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(box_patterns)]
 #![feature(file_buffered)]
-#![feature(if_let_guard)]
 #![feature(negative_impls)]
 #![feature(string_from_utf8_lossy_owned)]
 #![feature(trait_alias)]

compiler/rustc_const_eval/src/lib.rs

@@ -1,9 +1,9 @@
 // tidy-alphabetical-start
 #![cfg_attr(bootstrap, feature(assert_matches))]
+#![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(array_try_map)]
 #![feature(box_patterns)]
 #![feature(decl_macro)]
-#![feature(if_let_guard)]
 #![feature(never_type)]
 #![feature(slice_ptr_get)]
 #![feature(trait_alias)]