| // check-pass |
| // pretty-expanded FIXME #23616 |
| |
| use std::mem; |
| |
| /// Returns the size of a type |
| pub fn size_of<T>() -> usize { |
| TypeInfo::size_of(None::<T>) |
| } |
| |
| /// Returns the size of the type that `val` points to |
| pub fn size_of_val<T>(val: &T) -> usize { |
| val.size_of_val() |
| } |
| |
| pub trait TypeInfo: Sized { |
| fn size_of(_lame_type_hint: Option<Self>) -> usize; |
| fn size_of_val(&self) -> usize; |
| } |
| |
| impl<T> TypeInfo for T { |
| /// The size of the type in bytes. |
| fn size_of(_lame_type_hint: Option<T>) -> usize { |
| mem::size_of::<T>() |
| } |
| |
| /// Returns the size of the type of `self` in bytes. |
| fn size_of_val(&self) -> usize { |
| TypeInfo::size_of(None::<T>) |
| } |
| } |
| |
| pub fn main() {} |
