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