mirror of https://github.com/rust-lang/rust
29 lines
658 B
Rust
29 lines
658 B
Rust
//@ run-pass
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#![feature(const_type_name)]
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#![allow(dead_code)]
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const fn type_name_wrapper<T>(_: &T) -> &'static str {
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std::any::type_name::<T>()
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}
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struct Struct<TA, TB, TC> {
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a: TA,
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b: TB,
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c: TC,
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}
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type StructInstantiation = Struct<i8, f64, bool>;
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const CONST_STRUCT: StructInstantiation = StructInstantiation { a: 12, b: 13.7, c: false };
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const CONST_STRUCT_NAME: &'static str = type_name_wrapper(&CONST_STRUCT);
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fn main() {
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let non_const_struct = StructInstantiation { a: 87, b: 65.99, c: true };
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let non_const_struct_name = type_name_wrapper(&non_const_struct);
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assert_eq!(CONST_STRUCT_NAME, non_const_struct_name);
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}
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