mirror of https://github.com/rust-lang/rust
36 lines
621 B
Rust
36 lines
621 B
Rust
pub static V: &u32 = &X;
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pub static F: fn() = f;
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pub static G: fn() = G0;
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pub static H: &(dyn Fn() + Sync) = &h;
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pub static I: fn() = Helper(j).mk();
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static X: u32 = 42;
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static G0: fn() = g;
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pub fn v() -> *const u32 {
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V
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}
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fn f() {}
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fn g() {}
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fn h() {}
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#[derive(Copy, Clone)]
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struct Helper<T: Copy>(T);
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impl<T: Copy + FnOnce()> Helper<T> {
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const fn mk(self) -> fn() {
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i::<T>
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}
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}
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fn i<T: FnOnce()>() {
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assert_eq!(std::mem::size_of::<T>(), 0);
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// unsafe to work around the lack of a `Default` impl for function items
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unsafe { (std::mem::transmute_copy::<(), T>(&()))() }
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}
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fn j() {}
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