Add NSNotFound

Author: madsmtm

objc2/CHANGELOG_FOUNDATION.md

@@ -12,6 +12,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 * Added `NSSet`.
 * Added `NSMutableSet`.
 * Added `NSMutableDictionary`.
+* Added `NSNotFound`.
 
 
 ## objc2 0.3.0-beta.2 - 2022-08-28

objc2/src/foundation/mod.rs

@@ -84,6 +84,12 @@ pub use self::zone::NSZone;
 #[doc(no_inline)]
 pub use crate::ffi::{NSInteger, NSUInteger};
 
+/// A value indicating that a requested item couldn’t be found or doesn’t exist.
+///
+/// See [Apple's documentation](https://developer.apple.com/documentation/foundation/nsnotfound?language=objc).
+#[allow(non_upper_case_globals)]
+pub const NSNotFound: NSInteger = crate::ffi::NSIntegerMax;
+
 #[cfg(feature = "apple")]
 #[link(name = "Foundation", kind = "framework")]
 extern "C" {}

objc2/src/foundation/string.rs

@@ -10,7 +10,6 @@ use core::str;
 use std::os::raw::c_char;
 
 use super::{NSComparisonResult, NSCopying, NSMutableCopying, NSMutableString, NSObject};
-use crate::ffi;
 use crate::rc::{autoreleasepool, AutoreleasePool, DefaultId, Id, Shared};
 use crate::runtime::{Class, Object};
 use crate::{extern_class, extern_methods, msg_send, msg_send_id, ClassType};
@@ -20,10 +19,6 @@ const UTF8_ENCODING: usize = 4;
 #[cfg(feature = "gnustep-1-7")]
 const UTF8_ENCODING: i32 = 4;
 
-#[allow(unused)]
-#[allow(non_upper_case_globals)]
-const NSNotFound: ffi::NSInteger = ffi::NSIntegerMax;
-
 extern_class!(
     /// An immutable, plain-text Unicode string object.
     ///