ba35e80534
Removes extra global bounds at the winnowing stage rather than when normalizing the param_env. This avoids breaking inference when there is a global bound.
80 lines
1.7 KiB
Rust
80 lines
1.7 KiB
Rust
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(unused)]
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#![allow(type_alias_bounds)]
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pub trait Foo {
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fn test(&self);
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}
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fn generic_function<X: Foo>(x: X) {}
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enum E where i32: Foo { V } //~ ERROR
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struct S where i32: Foo; //~ ERROR
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trait T where i32: Foo {} //~ ERROR
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union U where i32: Foo { f: i32 } //~ ERROR
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type Y where i32: Foo = (); // OK - bound is ignored
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impl Foo for () where i32: Foo { //~ ERROR
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fn test(&self) {
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3i32.test();
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Foo::test(&4i32);
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generic_function(5i32);
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}
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}
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fn f() where i32: Foo //~ ERROR
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{
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let s = S;
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3i32.test();
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Foo::test(&4i32);
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generic_function(5i32);
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}
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fn use_op(s: String) -> String where String: ::std::ops::Neg<Output=String> { //~ ERROR
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-s
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}
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fn use_for() where i32: Iterator { //~ ERROR
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for _ in 2i32 {}
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}
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trait A {}
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impl A for i32 {}
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struct Dst<X: ?Sized> {
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x: X,
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}
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struct TwoStrs(str, str) where str: Sized; //~ ERROR
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fn unsized_local() where Dst<A>: Sized { //~ ERROR
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let x: Dst<A> = *(Box::new(Dst { x: 1 }) as Box<Dst<A>>);
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}
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fn return_str() -> str where str: Sized { //~ ERROR
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*"Sized".to_string().into_boxed_str()
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}
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// This is currently accepted because the function pointer isn't
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// considered global.
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fn global_hr(x: fn(&())) where fn(&()): Foo { // OK
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x.test();
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}
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fn main() {}
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