Add missing #[must_use] attribute for clippy

gstreamer-pbutils/src/encoding_profile.rs

@@ -316,21 +316,29 @@ impl<'a> EncodingProfileBuilderCommonData<'a> {
 
 pub trait EncodingProfileBuilder<'a>: Sized {
     #[doc(alias = "gst_encoding_profile_set_name")]
+    #[must_use]
     fn name(self, name: &'a str) -> Self;
     #[doc(alias = "gst_encoding_profile_set_description")]
+    #[must_use]
     fn description(self, description: &'a str) -> Self;
     #[doc(alias = "gst_encoding_profile_set_preset")]
+    #[must_use]
     fn preset(self, preset: &'a str) -> Self;
     #[doc(alias = "gst_encoding_profile_set_preset_name")]
+    #[must_use]
     fn preset_name(self, preset_name: &'a str) -> Self;
     #[doc(alias = "gst_encoding_profile_set_presence")]
+    #[must_use]
     fn presence(self, presence: u32) -> Self;
     #[doc(alias = "gst_encoding_profile_set_allow_dynamic_output")]
+    #[must_use]
     fn allow_dynamic_output(self, allow: bool) -> Self;
     #[doc(alias = "gst_encoding_profile_set_enabled")]
+    #[must_use]
     fn enabled(self, enabled: bool) -> Self;
     #[cfg(feature = "v1_18")]
     #[doc(alias = "gst_encoding_profile_set_single_segment")]
+    #[must_use]
     fn single_segment(self, single_segment: bool) -> Self;
 }
 

gstreamer/src/enums.rs

@@ -644,6 +644,7 @@ impl ToValue for MessageType {
 }
 
 impl State {
+    #[must_use]
     pub fn next(self, pending: Self) -> Self {
         let current = self.into_glib();
         let pending = pending.into_glib();

gstreamer/src/iterator.rs

@@ -66,6 +66,7 @@ where
     }
 
     #[doc(alias = "gst_iterator_filter")]
+    #[must_use]
     pub fn filter<F>(self, func: F) -> Self
     where
         F: Fn(T) -> bool + Send + Sync + 'static,

gstreamer/src/miniobject.rs

@@ -92,6 +92,7 @@ macro_rules! mini_object_wrapper (
                 }
             }
 
+            #[must_use]
             pub fn upcast(self) -> $crate::miniobject::MiniObject {
                 unsafe {
                     from_glib_full(self.into_ptr() as *mut $crate::ffi::GstMiniObject)