Add unstable struct fields to ui tests

src/test/ui/rfc-2008-non-exhaustive/auxiliary/unstable.rs

@@ -27,3 +27,34 @@ impl OnlyUnstableEnum {
         Self::Unstable
     }
 }
+
+#[derive(Default)]
+#[stable(feature = "stable_test_feature", since = "1.0.0")]
+#[non_exhaustive]
+pub struct UnstableStruct {
+    #[stable(feature = "stable_test_feature", since = "1.0.0")]
+    pub stable: bool,
+    #[stable(feature = "stable_test_feature", since = "1.0.0")]
+    pub stable2: usize,
+    #[unstable(feature = "unstable_test_feature", issue = "none")]
+    pub unstable: u8,
+}
+
+#[stable(feature = "stable_test_feature", since = "1.0.0")]
+#[non_exhaustive]
+pub struct OnlyUnstableStruct {
+    #[unstable(feature = "unstable_test_feature", issue = "none")]
+    pub unstable: u8,
+    #[unstable(feature = "unstable_test_feature", issue = "none")]
+    pub unstable2: bool,
+}
+
+impl OnlyUnstableStruct {
+    #[stable(feature = "stable_test_feature", since = "1.0.0")]
+    pub fn new() -> Self {
+        Self {
+            unstable: 0,
+            unstable2: false,
+        }
+    }
+}

src/test/ui/rfc-2008-non-exhaustive/omitted-patterns.rs

@@ -13,7 +13,7 @@ use enums::{
     EmptyNonExhaustiveEnum, NestedNonExhaustive, NonExhaustiveEnum, NonExhaustiveSingleVariant,
     VariantNonExhaustive,
 };
-use unstable::{UnstableEnum, OnlyUnstableEnum};
+use unstable::{UnstableEnum, OnlyUnstableEnum, UnstableStruct, OnlyUnstableStruct};
 use structs::{FunctionalRecord, MixedVisFields, NestedStruct, NormalStruct};
 
 #[non_exhaustive]
@@ -145,6 +145,7 @@ fn main() {
     }
     //~^^ some variants are not matched explicitly
 
+    // Ok: the feature is on and all variants are matched
     #[deny(non_exhaustive_omitted_patterns)]
     match UnstableEnum::Stable {
         UnstableEnum::Stable => {}
@@ -167,4 +168,20 @@ fn main() {
         _ => {}
     }
     //~^^ some variants are not matched explicitly
+
+    #[warn(non_exhaustive_omitted_patterns)]
+    let OnlyUnstableStruct { unstable, .. } = OnlyUnstableStruct::new();
+    //~^ some fields are not explicitly listed
+
+    // OK: both unstable fields are matched with feature on
+    #[warn(non_exhaustive_omitted_patterns)]
+    let OnlyUnstableStruct { unstable, unstable2, .. } = OnlyUnstableStruct::new();
+
+    #[warn(non_exhaustive_omitted_patterns)]
+    let UnstableStruct { stable, stable2, .. } = UnstableStruct::default();
+    //~^ some fields are not explicitly listed
+
+    // OK: both unstable and stable fields are matched with feature on
+    #[warn(non_exhaustive_omitted_patterns)]
+    let UnstableStruct { stable, stable2, unstable, .. } = UnstableStruct::default();
 }

src/test/ui/rfc-2008-non-exhaustive/stable-omitted-patterns.rs

@@ -6,7 +6,7 @@
 // aux-build:unstable.rs
 extern crate unstable;
 
-use unstable::{UnstableEnum, OnlyUnstableEnum};
+use unstable::{UnstableEnum, OnlyUnstableEnum, UnstableStruct, OnlyUnstableStruct};
 
 fn main() {
     // OK: this matches all the stable variants
@@ -30,4 +30,16 @@ fn main() {
     match OnlyUnstableEnum::new() {
         _ => {}
     }
+
+    // Ok: Same as the above enum (no fields can be matched on)
+    #[warn(non_exhaustive_omitted_patterns)]
+    let OnlyUnstableStruct { .. } = OnlyUnstableStruct::new();
+
+    #[warn(non_exhaustive_omitted_patterns)]
+    let UnstableStruct { stable, .. } = UnstableStruct::default();
+    //~^ some fields are not explicitly listed
+
+    // OK: stable field is matched
+    #[warn(non_exhaustive_omitted_patterns)]
+    let UnstableStruct { stable, stable2, .. } = UnstableStruct::default();
 }