65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
// ignore-tidy-linelength
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#![feature(rustc_attrs)]
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#![allow(unused)]
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#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
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trait Foo<Bar, Baz, Quux>
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{}
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#[rustc_on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
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trait MyFromIterator<A> {
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/// Builds a container with elements from an external iterator.
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fn my_from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;
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}
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#[rustc_on_unimplemented]
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//~^ ERROR malformed `rustc_on_unimplemented` attribute
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trait BadAnnotation1
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{}
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#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{C}>`"]
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//~^ ERROR there is no parameter `C` on trait `BadAnnotation2`
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trait BadAnnotation2<A,B>
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{}
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#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{}>`"]
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//~^ only named substitution parameters are allowed
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trait BadAnnotation3<A,B>
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{}
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#[rustc_on_unimplemented(lorem="")]
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//~^ this attribute must have a valid
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trait BadAnnotation4 {}
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#[rustc_on_unimplemented(lorem(ipsum(dolor)))]
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//~^ this attribute must have a valid
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trait BadAnnotation5 {}
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#[rustc_on_unimplemented(message="x", message="y")]
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//~^ this attribute must have a valid
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trait BadAnnotation6 {}
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#[rustc_on_unimplemented(message="x", on(desugared, message="y"))]
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//~^ this attribute must have a valid
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trait BadAnnotation7 {}
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#[rustc_on_unimplemented(on(), message="y")]
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//~^ empty `on`-clause
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trait BadAnnotation8 {}
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#[rustc_on_unimplemented(on="x", message="y")]
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//~^ this attribute must have a valid
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trait BadAnnotation9 {}
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#[rustc_on_unimplemented(on(x="y"), message="y")]
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trait BadAnnotation10 {}
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#[rustc_on_unimplemented(on(desugared, on(desugared, message="x")), message="y")]
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//~^ this attribute must have a valid
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trait BadAnnotation11 {}
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pub fn main() {
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}
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