feature rename

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "slow_function_warning"
-version = "0.3.0"
+version = "0.4.0-rc.0"
 authors = ["Hrafn Orri Hrafnkelsson <hrafn@vidfjord.is>"]
 edition = "2021"
 description = "A simple macro that prints a warning if a function takes longer than expected"
@@ -12,7 +12,8 @@ license = "MIT"
 
 [features]
 default = []
-slow_function_warning = []
+disabled = []
+enabled = []
 
 [lib]
 proc-macro = true

README.md

@@ -33,7 +33,7 @@ fn example_function() {
 The warning is not on by default and is only recommended for debugging purposes. To enable it use the `slow_function_warning` feature.
 
 ~~~bash
-cargo run --features slow_function_warning
+cargo run --features slow_function_warning/enabled
 ~~~
 
 ## Custom Message Example

src/lib.rs

@@ -35,7 +35,7 @@ fn parse_time(expr: &Expr) -> Result<Duration> {
 
 #[proc_macro_attribute]
 pub fn slow_function_warning(args: TokenStream, input: TokenStream) -> TokenStream {
-    if !cfg!(feature = "slow_function_warning") {
+    if !cfg!(feature = "enabled") {
         return input;
     }
     let args: Punctuated<Expr, Token![,]> = if !args.is_empty() {