stabilize int_error_matching

library/core/src/num/error.rs

@@ -74,26 +74,20 @@ pub struct ParseIntError {
 /// # Example
 ///
 /// ```
-/// #![feature(int_error_matching)]
-///
 /// # fn main() {
 /// if let Err(e) = i32::from_str_radix("a12", 10) {
 ///     println!("Failed conversion to i32: {:?}", e.kind());
 /// }
 /// # }
 /// ```
-#[unstable(
-    feature = "int_error_matching",
-    reason = "it can be useful to match errors when making error messages \
-              for integer parsing",
-    issue = "22639"
-)]
+#[stable(feature = "int_error_matching", since = "1.54.0")]
 #[derive(Debug, Clone, PartialEq, Eq)]
 #[non_exhaustive]
 pub enum IntErrorKind {
     /// Value being parsed is empty.
     ///
-    /// Among other causes, this variant will be constructed when parsing an empty string.
+    /// This variant will be constructed when parsing an empty string.
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     Empty,
     /// Contains an invalid digit in its context.
     ///
@@ -102,26 +96,25 @@ pub enum IntErrorKind {
     ///
     /// This variant is also constructed when a `+` or `-` is misplaced within a string
     /// either on its own or in the middle of a number.
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     InvalidDigit,
     /// Integer is too large to store in target integer type.
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     PosOverflow,
     /// Integer is too small to store in target integer type.
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     NegOverflow,
     /// Value was Zero
     ///
     /// This variant will be emitted when the parsing string has a value of zero, which
     /// would be illegal for non-zero types.
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     Zero,
 }
 
 impl ParseIntError {
     /// Outputs the detailed cause of parsing an integer failing.
-    #[unstable(
-        feature = "int_error_matching",
-        reason = "it can be useful to match errors when making error messages \
-              for integer parsing",
-        issue = "22639"
-    )]
+    #[stable(feature = "int_error_matching", since = "1.54.0")]
     pub fn kind(&self) -> &IntErrorKind {
         &self.kind
     }