mirror of https://github.com/rust-lang/rust
43 lines
894 B
Rust
43 lines
894 B
Rust
//@ ignore-windows different list of satisfying impls
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use std::collections::HashMap;
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fn what() {
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let descr = String::new();
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let mut opts = HashMap::<String, ()>::new();
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let opt = String::new();
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opts.get(opt.as_ref()); //~ ERROR type annotations needed
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//~^ ERROR type annotations needed
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}
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fn main() {
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let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect();
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//~^ ERROR type annotations needed
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}
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trait Foo<'a, T: ?Sized> {
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fn foo(&self) -> Box<T> {
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todo!()
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}
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}
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trait Bar<'a, T: ?Sized> {
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fn bar(&self) -> Box<T> {
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todo!()
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}
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}
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impl Foo<'static, u32> for () {}
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impl<'a> Foo<'a, i16> for () {}
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impl<'a> Bar<'static, u32> for &'a () {}
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impl<'a> Bar<'a, i16> for &'a () {}
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fn foo() {
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let _ = ().foo(); //~ ERROR type annotations needed
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}
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fn bar() {
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let _ = (&()).bar(); //~ ERROR type annotations needed
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}
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