1 files changed, 127 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2302-self-struct-ctor.rs b/tests/ui/rfcs/rfc-2302-self-struct-ctor.rs
new file mode 100644
index 00000000000..1ec20c50034
--- /dev/null
+++ b/tests/ui/rfcs/rfc-2302-self-struct-ctor.rs
@@ -0,0 +1,127 @@
+// run-pass
+
+#![allow(dead_code)]
+
+use std::fmt::Display;
+
+struct ST1(i32, i32);
+
+impl ST1 {
+    fn new() -> Self {
+        ST1(0, 1)
+    }
+
+    fn ctor() -> Self {
+        Self(1,2)         // Self as a constructor
+    }
+
+    fn pattern(self) {
+        match self {
+            Self(x, y) => println!("{} {}", x, y), // Self as a pattern
+        }
+    }
+}
+
+struct ST2<T>(T); // With type parameter
+
+impl<T> ST2<T> where T: Display {
+
+    fn ctor(v: T) -> Self {
+        Self(v)
+    }
+
+    fn pattern(&self) {
+        match self {
+            Self(ref v) => println!("{}", v),
+        }
+    }
+}
+
+struct ST3<'a>(&'a i32); // With lifetime parameter
+
+impl<'a> ST3<'a> {
+
+    fn ctor(v: &'a i32) -> Self {
+        Self(v)
+    }
+
+    fn pattern(self) {
+        let Self(ref v) = self;
+        println!("{}", v);
+    }
+}
+
+struct ST4(usize);
+
+impl ST4 {
+    fn map(opt: Option<usize>) -> Option<Self> {
+        opt.map(Self)     // use `Self` as a function passed somewhere
+    }
+}
+
+struct ST5;               // unit struct
+
+impl ST5 {
+    fn ctor() -> Self {
+        Self               // `Self` as a unit struct value
+    }
+
+    fn pattern(self) -> Self {
+        match self {
+            Self => Self,   // `Self` as a unit struct value for matching
+        }
+    }
+}
+
+struct ST6(i32);
+type T = ST6;
+impl T {
+    fn ctor() -> Self {
+        ST6(1)
+    }
+
+    fn type_alias(self) {
+        let Self(_x) = match self { Self(x) => Self(x) };
+        let _opt: Option<Self> = Some(0).map(Self);
+    }
+}
+
+struct ST7<T1, T2>(T1, T2);
+
+impl ST7<i32, usize> {
+
+    fn ctor() -> Self {
+        Self(1, 2)
+    }
+
+    fn pattern(self) -> Self {
+        match self {
+            Self(x, y) => Self(x, y),
+        }
+    }
+}
+
+fn main() {
+    let v1 = ST1::ctor();
+    v1.pattern();
+
+    let v2 = ST2::ctor(10);
+    v2.pattern();
+
+    let local = 42;
+    let v3 = ST3::ctor(&local);
+    v3.pattern();
+
+    let v4 = Some(1usize);
+    let _ = ST4::map(v4);
+
+    let v5 = ST5::ctor();
+    v5.pattern();
+
+    let v6 = ST6::ctor();
+    v6.type_alias();
+
+    let v7 = ST7::<i32, usize>::ctor();
+    let r = v7.pattern();
+    println!("{} {}", r.0, r.1)
+}