4924e0a067
HIR printing currently gets very little testing. This increases coverage a bit, with a focus on lifetimes. There are some FIXME comments for cases that are printed in a dubious fashion. This PR won't address those; the point of adding this test is to ensure that the subsequent commits don't hurt pretty-printing.
91 lines
1.6 KiB
Rust
91 lines
1.6 KiB
Rust
//@ pretty-compare-only
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//@ pretty-mode:hir
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//@ pp-exact:hir-lifetimes.pp
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// This tests the pretty-printing of lifetimes in lots of ways.
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#![allow(unused)]
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struct Foo<'a> {
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x: &'a u32,
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}
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impl<'a> Foo<'a> {
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fn f<'b>(x: &'b u32) {}
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}
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impl Foo<'_> {
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fn a(x: &u32) {}
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fn b(x: &'_ u32) {}
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fn c(x: &'_ u32, y: &'static u32) {}
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// FIXME: `'a` before `self` is omitted
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fn d<'a>(&'a self, x: &'a u32) {}
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// FIXME: impl Traits printed as just `/*impl Trait*/`, ugh
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fn iter1<'a>(&self) -> impl Iterator<Item = u32> + 'a { 0..1 }
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fn iter2(&self) -> impl Iterator<Item = u32> + '_ { 0..1 }
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}
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fn a(x: Foo<'_>) {}
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fn b<'a>(x: Foo<'a>) {}
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struct Bar<'a, 'b, 'c, T> {
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x: &'a u32,
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y: &'b &'c u32,
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z: T,
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}
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fn f1<'a, 'b, T>(x: Bar<'a, 'b, '_, T>) {}
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fn f2(x: Bar<'_, '_, '_, u32>) {}
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trait MyTrait<'a, 'b> {
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fn f(&self, x: Foo<'a>, y: Foo<'b>);
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}
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impl<'a, 'b, 'c, T> MyTrait<'a, 'b> for Bar<'a, 'b, 'c, T> {
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fn f(&self, x: Foo<'a>, y: Foo<'b>) {}
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}
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fn g(x: &dyn for<'a, 'b> MyTrait<'a, 'b>) {}
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trait Blah {}
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type T<'a> = dyn Blah + 'a;
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type Q<'a> = dyn MyTrait<'a, 'a> + 'a;
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fn h<'b, F>(f: F, y: Foo<'b>) where F: for<'d> MyTrait<'d, 'b> {}
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// FIXME(?): attr printing is weird
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#[repr(C)]
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struct S<'a>(&'a u32);
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extern "C" {
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fn g1(s: S);
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fn g2(s: S<'_>);
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fn g3<'a>(s: S<'a>);
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}
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struct St<'a> { x: &'a u32 }
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fn f() {
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_ = St { x: &0 };
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_ = St::<'_> { x: &0 };
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}
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struct Name<'a>(&'a str);
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const A: Name = Name("a");
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const B: &str = "";
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static C: &'_ str = "";
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static D: &'static str = "";
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fn tr(_: Box<dyn Blah>) {}
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fn main() {}
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