mirror of https://github.com/rust-lang/rust
45 lines
702 B
Rust
45 lines
702 B
Rust
#![feature(offset_of_nested)]
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#![deny(dead_code)]
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use std::mem::offset_of;
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struct Alpha {
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a: (),
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b: (), //~ ERROR field `b` is never read
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c: Beta,
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}
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struct Beta {
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a: (), //~ ERROR field `a` is never read
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b: (),
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}
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struct Gamma {
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a: (), //~ ERROR field `a` is never read
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b: (),
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}
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struct Delta {
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a: (),
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b: (), //~ ERROR field `b` is never read
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}
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trait Trait {
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type Assoc;
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}
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impl Trait for () {
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type Assoc = Delta;
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}
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struct Project<T: Trait> {
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a: u8, //~ ERROR field `a` is never read
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b: <T as Trait>::Assoc,
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}
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fn main() {
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offset_of!(Alpha, a);
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offset_of!(Alpha, c.b);
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offset_of!((Gamma,), 0.b);
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offset_of!(Project::<()>, b.a);
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}
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