don't use &String where it makes a mess

1 files changed, 10 insertions, 4 deletions

diff --git a/src/args.rs b/src/args.rs
index 4f36c03..6a46986 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -172,12 +172,18 @@ impl Args {
         Self::from_given_args_and_given_env(args.into_iter(), env_makeflags)
     }
 
-    pub fn targets(&self) -> impl Iterator<Item = &String> {
-        self.targets_or_macros.iter().filter(|x| !x.contains('='))
+    pub fn targets(&self) -> impl Iterator<Item = &str> {
+        self.targets_or_macros
+            .iter()
+            .map(AsRef::as_ref)
+            .filter(|x: &&str| !x.contains('='))
     }
 
-    pub fn macros(&self) -> impl Iterator<Item = &String> {
-        self.targets_or_macros.iter().filter(|x| x.contains('='))
+    pub fn macros(&self) -> impl Iterator<Item = &str> {
+        self.targets_or_macros
+            .iter()
+            .map(AsRef::as_ref)
+            .filter(|x: &&str| x.contains('='))
     }
 }