/// Conversion from an `Iterator`
#[stable]
-#[on_unimplemented="a collection of type `{Self}` cannot be \
- built from an iterator over elements of type `{A}`"]
+#[rustc_on_unimplemented="a collection of type `{Self}` cannot be \
+ built from an iterator over elements of type `{A}`"]
pub trait FromIterator<A> {
/// Build a container with elements from an external iterator.
fn from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;
"must_use",
"stable",
"unstable",
- "on_unimplemented",
+ "rustc_on_unimplemented",
// FIXME: #19470 this shouldn't be needed forever
"old_orphan_check",
let def_id = trait_ref.def_id;
let mut report = None;
ty::each_attr(infcx.tcx, def_id, |item| {
- if item.check_name("on_unimplemented") {
+ if item.check_name("rustc_on_unimplemented") {
let err_sp = if item.meta().span == DUMMY_SP {
span
} else {
None => {
infcx.tcx.sess
.span_err(err_sp,
- format!("the #[on_unimplemented] attribute on \
+ format!("the #[rustc_on_unimplemented] \
+ attribute on \
trait definition for {} refers to \
non-existent type parameter {}",
trait_str, s)
_ => {
infcx.tcx.sess
.span_err(err_sp,
- format!("the #[on_unimplemented] attribute on \
+ format!("the #[rustc_on_unimplemented] \
+ attribute on \
trait definition for {} must have named \
format arguments, \
- eg `#[on_unimplemented = \"foo {{T}}\"]`",
+ eg `#[rustc_on_unimplemented = \
+ \"foo {{T}}\"]`",
trait_str).as_slice());
errored = true;
None
}
} else {
infcx.tcx.sess.span_err(err_sp,
- format!("the #[on_unimplemented] attribute on \
+ format!("the #[rustc_on_unimplemented] attribute on \
trait definition for {} must have a value, \
- eg `#[on_unimplemented = \"foo\"]`",
+ eg `#[rustc_on_unimplemented = \"foo\"]`",
trait_str).as_slice());
}
false
"the trait `{}` is not implemented for the type `{}`",
trait_ref.user_string(infcx.tcx),
trait_ref.self_ty().user_string(infcx.tcx)).as_slice());
- // Check if it has a custom "#[on_unimplemented]" error message,
+ // Check if it has a custom "#[rustc_on_unimplemented]" error message,
// report with that message if it does
let custom_note = report_on_unimplemented(infcx, &*trait_ref.0,
obligation.cause.span);
generics: &ast::Generics,
item: &ast::Item) {
if let Some(ref attr) = item.attrs.iter().find(|&: a| {
- a.check_name("on_unimplemented")
+ a.check_name("rustc_on_unimplemented")
}) {
if let Some(ref istring) = attr.value_str() {
let mut parser = Parser::new(istring.get());
} else {
ccx.tcx.sess.span_err(attr.span,
"this attribute must have a value, \
- eg `#[on_unimplemented = \"foo\"]`")
+ eg `#[rustc_on_unimplemented = \"foo\"]`")
}
}
}
#[allow(unused)]
-#[on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
+#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
trait Foo<Bar, Baz, Quux>{}
-#[on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
+#[rustc_on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
trait MyFromIterator<A> {
/// Build a container with elements from an external iterator.
fn my_from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;
}
-#[on_unimplemented] //~ ERROR this attribute must have a value
+#[rustc_on_unimplemented] //~ ERROR this attribute must have a value
trait BadAnnotation1 {}
-#[on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{C}>`"]
+#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{C}>`"]
//~^ ERROR there is no type parameter C on trait BadAnnotation2
trait BadAnnotation2<A,B> {}
// except according to those terms.
// ignore-tidy-linelength
-#[on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
+#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
trait Foo<Bar, Baz, Quux>{}
fn foobar<U: Clone, T: Foo<u8, U, u32>>() -> T {
}
-#[on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
+#[rustc_on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
trait MyFromIterator<A> {
/// Build a container with elements from an external iterator.
fn my_from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;