File: bare_type.rs

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rustc 1.85.0%2Bdfsg3-1
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//@ run-pass
#![allow(dead_code)]
type MyType<'a, T> = &'a T;

// combine lifetime bounds and type arguments in usual way
type TypeA<'a> = MyType<'a, ()>;

// ensure token `>>` works fine
type TypeB = Box<TypeA<'static>>;
type TypeB_ = Box<TypeA<'static,>>;

// trailing comma when combine lifetime bounds and type arguments
type TypeC<'a> = MyType<'a, (),>;

// normal lifetime bounds
type TypeD = TypeA<'static>;

// trailing comma on lifetime bounds
type TypeE = TypeA<'static,>;

// normal type argument
type TypeF<T> = Box<T>;

// type argument with trailing comma
type TypeG<T> = Box<T,>;

// trailing comma on lifetime defs
type TypeH<'a,> = &'a ();

// trailing comma on type argument
type TypeI<T,> = T;

static STATIC: () = ();

fn main() {
    // ensure token `>=` works fine
    let _: TypeA<'static> = &STATIC;
    let _: TypeA<'static,> = &STATIC;

    // ensure token `>>=` works fine
    let _: Box<TypeA<'static>> = Box::new(&STATIC);
    let _: Box<TypeA<'static,>> = Box::new(&STATIC);
}