src/test/ui/issues/issue-6898.rs

   1 // check-pass
   2 // pretty-expanded FIXME #23616
   3
   4 use std::mem;
   5
   6 /// Returns the size of a type
   7 pub fn size_of<T>() -> usize {
   8     TypeInfo::size_of(None::<T>)
   9 }
  10
  11 /// Returns the size of the type that `val` points to
  12 pub fn size_of_val<T>(val: &T) -> usize {
  13     val.size_of_val()
  14 }
  15
  16 pub trait TypeInfo: Sized {
  17     fn size_of(_lame_type_hint: Option<Self>) -> usize;
  18     fn size_of_val(&self) -> usize;
  19 }
  20
  21 impl<T> TypeInfo for T {
  22     /// The size of the type in bytes.
  23     fn size_of(_lame_type_hint: Option<T>) -> usize {
  24         mem::size_of::<T>()
  25     }
  26
  27     /// Returns the size of the type of `self` in bytes.
  28     fn size_of_val(&self) -> usize {
  29         TypeInfo::size_of(None::<T>)
  30     }
  31 }
  32
  33 pub fn main() {}