Auto merge of #69030 - Dylan-DPC:rollup-t9uk7vc, r=Dylan-DPC

Rollup of 6 pull requests

Successful merges:

 - #68897 (clean up E0275 explanation)
 - #68908 (Add long error code explanation message for E0637 )
 - #68932 (self-profile: Support arguments for generic_activities.)
 - #68986 (Make ASCII ctype functions unstably const )
 - #69007 (Clean up E0283 explanation)
 - #69014 (change an instance of span_bug() to struct_span_err() to avoid ICE)

Failed merges:

r? @ghost

1 files changed, 20 insertions, 10 deletions

diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index 3ae8f0f7870..471ab966622 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -4449,8 +4449,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_alphabetic());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_alphabetic(&self) -> bool {
+    pub const fn is_ascii_alphabetic(&self) -> bool {
         matches!(*self, b'A'..=b'Z' | b'a'..=b'z')
     }
 
@@ -4481,8 +4482,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_uppercase());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_uppercase(&self) -> bool {
+    pub const fn is_ascii_uppercase(&self) -> bool {
         matches!(*self, b'A'..=b'Z')
     }
 
@@ -4513,8 +4515,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_lowercase());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_lowercase(&self) -> bool {
+    pub const fn is_ascii_lowercase(&self) -> bool {
         matches!(*self, b'a'..=b'z')
     }
 
@@ -4548,8 +4551,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_alphanumeric());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_alphanumeric(&self) -> bool {
+    pub const fn is_ascii_alphanumeric(&self) -> bool {
         matches!(*self, b'0'..=b'9' | b'A'..=b'Z' | b'a'..=b'z')
     }
 
@@ -4580,8 +4584,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_digit());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_digit(&self) -> bool {
+    pub const fn is_ascii_digit(&self) -> bool {
         matches!(*self, b'0'..=b'9')
     }
 
@@ -4615,8 +4620,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_hexdigit());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_hexdigit(&self) -> bool {
+    pub const fn is_ascii_hexdigit(&self) -> bool {
         matches!(*self, b'0'..=b'9' | b'A'..=b'F' | b'a'..=b'f')
     }
 
@@ -4651,8 +4657,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_punctuation());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_punctuation(&self) -> bool {
+    pub const fn is_ascii_punctuation(&self) -> bool {
         matches!(*self, b'!'..=b'/' | b':'..=b'@' | b'['..=b'`' | b'{'..=b'~')
     }
 
@@ -4683,8 +4690,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_graphic());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_graphic(&self) -> bool {
+    pub const fn is_ascii_graphic(&self) -> bool {
         matches!(*self, b'!'..=b'~')
     }
 
@@ -4732,8 +4740,9 @@ impl u8 {
     /// assert!(!esc.is_ascii_whitespace());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_whitespace(&self) -> bool {
+    pub const fn is_ascii_whitespace(&self) -> bool {
         matches!(*self, b'\t' | b'\n' | b'\x0C' | b'\r' | b' ')
     }
 
@@ -4766,8 +4775,9 @@ impl u8 {
     /// assert!(esc.is_ascii_control());
     /// ```
     #[stable(feature = "ascii_ctype_on_intrinsics", since = "1.24.0")]
+    #[rustc_const_unstable(feature = "const_ascii_ctype_on_intrinsics", issue = "68983")]
     #[inline]
-    pub fn is_ascii_control(&self) -> bool {
+    pub const fn is_ascii_control(&self) -> bool {
         matches!(*self, b'\0'..=b'\x1F' | b'\x7F')
     }
 }