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Diffstat (limited to 'src/test/ui/functions-closures/nullable-pointer-opt-closures.rs')
-rw-r--r--src/test/ui/functions-closures/nullable-pointer-opt-closures.rs34
1 files changed, 0 insertions, 34 deletions
diff --git a/src/test/ui/functions-closures/nullable-pointer-opt-closures.rs b/src/test/ui/functions-closures/nullable-pointer-opt-closures.rs
deleted file mode 100644
index 87dacfba2..000000000
--- a/src/test/ui/functions-closures/nullable-pointer-opt-closures.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-// run-pass
-
-use std::mem;
-
-pub fn main() {
- // By Ref Capture
- let a = 10i32;
- let b = Some(|| println!("{}", a));
- // When we capture by reference we can use any of the
- // captures as the discriminant since they're all
- // behind a pointer.
- assert_eq!(mem::size_of_val(&b), mem::size_of::<usize>());
-
- // By Value Capture
- let a = Box::new(12i32);
- let b = Some(move || println!("{}", a));
- // We captured `a` by value and since it's a `Box` we can use it
- // as the discriminant.
- assert_eq!(mem::size_of_val(&b), mem::size_of::<Box<i32>>());
-
- // By Value Capture - Transitive case
- let a = "Hello".to_string(); // String -> Vec -> Unique -> NonZero
- let b = Some(move || println!("{}", a));
- // We captured `a` by value and since down the chain it contains
- // a `NonZero` field, we can use it as the discriminant.
- assert_eq!(mem::size_of_val(&b), mem::size_of::<String>());
-
- // By Value - No Optimization
- let a = 14i32;
- let b = Some(move || println!("{}", a));
- // We captured `a` by value but we can't use it as the discriminant
- // thus we end up with an extra field for the discriminant
- assert_eq!(mem::size_of_val(&b), mem::size_of::<(i32, i32)>());
-}