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Auto merge of #116405 - estebank:issue-103155, r=davidtwco 

Detect object safety errors when assoc type is missing

When an associated type with GATs isn't specified in a `dyn Trait`, emit an object safety error instead of only complaining about the missing associated type, as it will lead the user down a path of three different errors before letting them know that what they were trying to do is impossible to begin with.

Fix #103155.
This commit is contained in:
bors 2023-10-30 22:47:48 +00:00
parent 31bc7e2c47 b8a8ba9c91
commit a395214a3a
38 changed files with 249 additions and 193 deletions
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2
compiler/rustc_hir_analysis/messages.ftl
View File

@ -404,7 +404,7 @@ hir_analysis_unused_associated_type_bounds =
.suggestion = remove this bound
hir_analysis_value_of_associated_struct_already_specified =
the value of the associated type `{$item_name}` (from trait `{$def_path}`) is already specified
the value of the associated type `{$item_name}` in trait `{$def_path}` is already specified
.label = re-bound here
.previous_bound_label = `{$item_name}` bound here first

47
compiler/rustc_hir_analysis/src/astconv/errors.rs
View File

@ -3,6 +3,7 @@ use crate::errors::{
AssocTypeBindingNotAllowed, ManualImplementation, MissingTypeParams,
ParenthesizedFnTraitExpansion,
};
use crate::traits::error_reporting::report_object_safety_error;
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::{pluralize, struct_span_err, Applicability, Diagnostic, ErrorGuaranteed};
use rustc_hir as hir;
@ -13,6 +14,7 @@ use rustc_session::parse::feature_err;
use rustc_span::edit_distance::find_best_match_for_name;
use rustc_span::symbol::{sym, Ident};
use rustc_span::{Span, Symbol, DUMMY_SP};
use rustc_trait_selection::traits::object_safety_violations_for_assoc_item;
use std::collections::BTreeSet;
@ -520,24 +522,33 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
(span, def_ids.into_iter().map(|did| tcx.associated_item(did)).collect())
})
.collect();
let mut names = vec![];
let mut names: FxHashMap<String, Vec<Symbol>> = Default::default();
let mut names_len = 0;
// Account for things like `dyn Foo + 'a`, like in tests `issue-22434.rs` and
// `issue-22560.rs`.
let mut trait_bound_spans: Vec<Span> = vec![];
let mut object_safety_violations = false;
for (span, items) in &associated_types {
if !items.is_empty() {
trait_bound_spans.push(*span);
}
for assoc_item in items {
let trait_def_id = assoc_item.container_id(tcx);
names.push(format!(
"`{}` (from trait `{}`)",
assoc_item.name,
tcx.def_path_str(trait_def_id),
));
names.entry(tcx.def_path_str(trait_def_id)).or_default().push(assoc_item.name);
names_len += 1;
let violations =
object_safety_violations_for_assoc_item(tcx, trait_def_id, *assoc_item);
if !violations.is_empty() {
report_object_safety_error(tcx, *span, trait_def_id, &violations).emit();
object_safety_violations = true;
}
}
}
if object_safety_violations {
return;
}
if let ([], [bound]) = (&potential_assoc_types[..], &trait_bounds) {
match bound.trait_ref.path.segments {
// FIXME: `trait_ref.path.span` can point to a full path with multiple
@ -573,15 +584,35 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
_ => {}
}
}
let mut names = names
.into_iter()
.map(|(trait_, mut assocs)| {
assocs.sort();
format!(
"{} in `{trait_}`",
match &assocs[..] {
[] => String::new(),
[only] => format!("`{only}`"),
[assocs @ .., last] => format!(
"{} and `{last}`",
assocs.iter().map(|a| format!("`{a}`")).collect::<Vec<_>>().join(", ")
),
}
)
})
.collect::<Vec<String>>();
names.sort();
let names = names.join(", ");
trait_bound_spans.sort();
let mut err = struct_span_err!(
tcx.sess,
trait_bound_spans,
E0191,
"the value of the associated type{} {} must be specified",
pluralize!(names.len()),
names.join(", "),
pluralize!(names_len),
names,
);
let mut suggestions = vec![];
let mut types_count = 0;

2
compiler/rustc_hir_analysis/src/astconv/object_safety.rs
View File

@ -380,7 +380,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
span,
E0228,
"the lifetime bound for this object type cannot be deduced \
from context; please supply an explicit bound"
from context; please supply an explicit bound"
);
let e = if borrowed {
// We will have already emitted an error E0106 complaining about a

2
compiler/rustc_trait_selection/src/traits/mod.rs
View File

@ -47,7 +47,7 @@ pub use self::engine::{ObligationCtxt, TraitEngineExt};
pub use self::fulfill::{FulfillmentContext, PendingPredicateObligation};
pub use self::object_safety::astconv_object_safety_violations;
pub use self::object_safety::is_vtable_safe_method;
pub use self::object_safety::MethodViolationCode;
pub use self::object_safety::object_safety_violations_for_assoc_item;
pub use self::object_safety::ObjectSafetyViolation;
pub use self::project::NormalizeExt;
pub use self::project::{normalize_inherent_projection, normalize_projection_type};

2
compiler/rustc_trait_selection/src/traits/object_safety.rs
View File

@ -360,7 +360,7 @@ fn generics_require_sized_self(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
/// Returns `Some(_)` if this item makes the containing trait not object safe.
#[instrument(level = "debug", skip(tcx), ret)]
fn object_safety_violations_for_assoc_item(
pub fn object_safety_violations_for_assoc_item(
tcx: TyCtxt<'_>,
trait_def_id: DefId,
item: ty::AssocItem,

132
tests/ui/associated-type-bounds/duplicate.rs
View File

@ -5,258 +5,258 @@ use std::iter;
use std::mem::ManuallyDrop;
struct SI1<T: Iterator<Item: Copy, Item: Send>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: T,
}
struct SI2<T: Iterator<Item: Copy, Item: Copy>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: T,
}
struct SI3<T: Iterator<Item: 'static, Item: 'static>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: T,
}
struct SW1<T>
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: T,
}
struct SW2<T>
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: T,
}
struct SW3<T>
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: T,
}
enum EI1<T: Iterator<Item: Copy, Item: Send>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
V(T),
}
enum EI2<T: Iterator<Item: Copy, Item: Copy>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
V(T),
}
enum EI3<T: Iterator<Item: 'static, Item: 'static>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
V(T),
}
enum EW1<T>
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
V(T),
}
enum EW2<T>
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
V(T),
}
enum EW3<T>
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
V(T),
}
union UI1<T: Iterator<Item: Copy, Item: Send>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: ManuallyDrop<T>,
}
union UI2<T: Iterator<Item: Copy, Item: Copy>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: ManuallyDrop<T>,
}
union UI3<T: Iterator<Item: 'static, Item: 'static>> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
f: ManuallyDrop<T>,
}
union UW1<T>
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: ManuallyDrop<T>,
}
union UW2<T>
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: ManuallyDrop<T>,
}
union UW3<T>
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
f: ManuallyDrop<T>,
}
fn FI1<T: Iterator<Item: Copy, Item: Send>>() {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn FI2<T: Iterator<Item: Copy, Item: Copy>>() {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn FI3<T: Iterator<Item: 'static, Item: 'static>>() {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn FW1<T>()
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
fn FW2<T>()
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
fn FW3<T>()
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
fn FRPIT1() -> impl Iterator<Item: Copy, Item: Send> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
iter::empty()
}
fn FRPIT2() -> impl Iterator<Item: Copy, Item: Copy> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
iter::empty()
}
fn FRPIT3() -> impl Iterator<Item: 'static, Item: 'static> {
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
iter::empty()
}
fn FAPIT1(_: impl Iterator<Item: Copy, Item: Send>) {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn FAPIT2(_: impl Iterator<Item: Copy, Item: Copy>) {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn FAPIT3(_: impl Iterator<Item: 'static, Item: 'static>) {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TAI1<T: Iterator<Item: Copy, Item: Send>> = T;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TAI2<T: Iterator<Item: Copy, Item: Copy>> = T;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TAI3<T: Iterator<Item: 'static, Item: 'static>> = T;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TAW1<T>
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
= T;
type TAW2<T>
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
= T;
type TAW3<T>
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
= T;
type ETAI1<T: Iterator<Item: Copy, Item: Send>> = impl Copy;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type ETAI2<T: Iterator<Item: Copy, Item: Copy>> = impl Copy;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type ETAI3<T: Iterator<Item: 'static, Item: 'static>> = impl Copy;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type ETAI4 = impl Iterator<Item: Copy, Item: Send>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type ETAI5 = impl Iterator<Item: Copy, Item: Copy>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type ETAI6 = impl Iterator<Item: 'static, Item: 'static>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRI1<T: Iterator<Item: Copy, Item: Send>> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRI2<T: Iterator<Item: Copy, Item: Copy>> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRI3<T: Iterator<Item: 'static, Item: 'static>> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRS1: Iterator<Item: Copy, Item: Send> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRS2: Iterator<Item: Copy, Item: Copy> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRS3: Iterator<Item: 'static, Item: 'static> {}
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
trait TRW1<T>
where
T: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRW2<T>
where
T: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRW3<T>
where
T: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRSW1
where
Self: Iterator<Item: Copy, Item: Send>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRSW2
where
Self: Iterator<Item: Copy, Item: Copy>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRSW3
where
Self: Iterator<Item: 'static, Item: 'static>,
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~| ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
//~| ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
{
}
trait TRA1 {
type A: Iterator<Item: Copy, Item: Send>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
}
trait TRA2 {
type A: Iterator<Item: Copy, Item: Copy>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
}
trait TRA3 {
type A: Iterator<Item: 'static, Item: 'static>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
}
type TADyn1 = dyn Iterator<Item: Copy, Item: Send>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TADyn2 = Box<dyn Iterator<Item: Copy, Item: Copy>>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
type TADyn3 = dyn Iterator<Item: 'static, Item: 'static>;
//~^ ERROR the value of the associated type `Item` (from trait `Iterator`) is already specified [E0719]
//~^ ERROR the value of the associated type `Item` in trait `Iterator` is already specified [E0719]
fn main() {}

132
tests/ui/associated-type-bounds/duplicate.stderr
View File

@ -1,4 +1,4 @@
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:7:36
|
LL | struct SI1<T: Iterator<Item: Copy, Item: Send>> {
@ -6,7 +6,7 @@ LL | struct SI1<T: Iterator<Item: Copy, Item: Send>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:11:36
|
LL | struct SI2<T: Iterator<Item: Copy, Item: Copy>> {
@ -14,7 +14,7 @@ LL | struct SI2<T: Iterator<Item: Copy, Item: Copy>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:15:39
|
LL | struct SI3<T: Iterator<Item: 'static, Item: 'static>> {
@ -22,7 +22,7 @@ LL | struct SI3<T: Iterator<Item: 'static, Item: 'static>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:21:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -30,7 +30,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:28:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -38,7 +38,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:35:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -46,7 +46,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:41:34
|
LL | enum EI1<T: Iterator<Item: Copy, Item: Send>> {
@ -54,7 +54,7 @@ LL | enum EI1<T: Iterator<Item: Copy, Item: Send>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:45:34
|
LL | enum EI2<T: Iterator<Item: Copy, Item: Copy>> {
@ -62,7 +62,7 @@ LL | enum EI2<T: Iterator<Item: Copy, Item: Copy>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:49:37
|
LL | enum EI3<T: Iterator<Item: 'static, Item: 'static>> {
@ -70,7 +70,7 @@ LL | enum EI3<T: Iterator<Item: 'static, Item: 'static>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:55:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -78,7 +78,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:62:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -86,7 +86,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:69:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -94,7 +94,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:75:35
|
LL | union UI1<T: Iterator<Item: Copy, Item: Send>> {
@ -102,7 +102,7 @@ LL | union UI1<T: Iterator<Item: Copy, Item: Send>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:79:35
|
LL | union UI2<T: Iterator<Item: Copy, Item: Copy>> {
@ -110,7 +110,7 @@ LL | union UI2<T: Iterator<Item: Copy, Item: Copy>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:83:38
|
LL | union UI3<T: Iterator<Item: 'static, Item: 'static>> {
@ -118,7 +118,7 @@ LL | union UI3<T: Iterator<Item: 'static, Item: 'static>> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:89:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -126,7 +126,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:96:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -134,7 +134,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:103:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -142,7 +142,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:109:32
|
LL | fn FI1<T: Iterator<Item: Copy, Item: Send>>() {}
@ -150,7 +150,7 @@ LL | fn FI1<T: Iterator<Item: Copy, Item: Send>>() {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:111:32
|
LL | fn FI2<T: Iterator<Item: Copy, Item: Copy>>() {}
@ -158,7 +158,7 @@ LL | fn FI2<T: Iterator<Item: Copy, Item: Copy>>() {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:113:35
|
LL | fn FI3<T: Iterator<Item: 'static, Item: 'static>>() {}
@ -166,7 +166,7 @@ LL | fn FI3<T: Iterator<Item: 'static, Item: 'static>>() {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:117:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -174,7 +174,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:123:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -182,7 +182,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:129:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -190,7 +190,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:134:42
|
LL | fn FRPIT1() -> impl Iterator<Item: Copy, Item: Send> {
@ -198,7 +198,7 @@ LL | fn FRPIT1() -> impl Iterator<Item: Copy, Item: Send> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:138:42
|
LL | fn FRPIT2() -> impl Iterator<Item: Copy, Item: Copy> {
@ -206,7 +206,7 @@ LL | fn FRPIT2() -> impl Iterator<Item: Copy, Item: Copy> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:142:45
|
LL | fn FRPIT3() -> impl Iterator<Item: 'static, Item: 'static> {
@ -214,7 +214,7 @@ LL | fn FRPIT3() -> impl Iterator<Item: 'static, Item: 'static> {
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:146:40
|
LL | fn FAPIT1(_: impl Iterator<Item: Copy, Item: Send>) {}
@ -222,7 +222,7 @@ LL | fn FAPIT1(_: impl Iterator<Item: Copy, Item: Send>) {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:148:40
|
LL | fn FAPIT2(_: impl Iterator<Item: Copy, Item: Copy>) {}
@ -230,7 +230,7 @@ LL | fn FAPIT2(_: impl Iterator<Item: Copy, Item: Copy>) {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:150:43
|
LL | fn FAPIT3(_: impl Iterator<Item: 'static, Item: 'static>) {}
@ -238,7 +238,7 @@ LL | fn FAPIT3(_: impl Iterator<Item: 'static, Item: 'static>) {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:153:35
|
LL | type TAI1<T: Iterator<Item: Copy, Item: Send>> = T;
@ -246,7 +246,7 @@ LL | type TAI1<T: Iterator<Item: Copy, Item: Send>> = T;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:155:35
|
LL | type TAI2<T: Iterator<Item: Copy, Item: Copy>> = T;
@ -254,7 +254,7 @@ LL | type TAI2<T: Iterator<Item: Copy, Item: Copy>> = T;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:157:38
|
LL | type TAI3<T: Iterator<Item: 'static, Item: 'static>> = T;
@ -262,7 +262,7 @@ LL | type TAI3<T: Iterator<Item: 'static, Item: 'static>> = T;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:161:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -270,7 +270,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:166:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -278,7 +278,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:171:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -286,7 +286,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:175:36
|
LL | type ETAI1<T: Iterator<Item: Copy, Item: Send>> = impl Copy;
@ -294,7 +294,7 @@ LL | type ETAI1<T: Iterator<Item: Copy, Item: Send>> = impl Copy;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:177:36
|
LL | type ETAI2<T: Iterator<Item: Copy, Item: Copy>> = impl Copy;
@ -302,7 +302,7 @@ LL | type ETAI2<T: Iterator<Item: Copy, Item: Copy>> = impl Copy;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:179:39
|
LL | type ETAI3<T: Iterator<Item: 'static, Item: 'static>> = impl Copy;
@ -310,7 +310,7 @@ LL | type ETAI3<T: Iterator<Item: 'static, Item: 'static>> = impl Copy;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:181:40
|
LL | type ETAI4 = impl Iterator<Item: Copy, Item: Send>;
@ -318,7 +318,7 @@ LL | type ETAI4 = impl Iterator<Item: Copy, Item: Send>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:183:40
|
LL | type ETAI5 = impl Iterator<Item: Copy, Item: Copy>;
@ -326,7 +326,7 @@ LL | type ETAI5 = impl Iterator<Item: Copy, Item: Copy>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:185:43
|
LL | type ETAI6 = impl Iterator<Item: 'static, Item: 'static>;
@ -334,7 +334,7 @@ LL | type ETAI6 = impl Iterator<Item: 'static, Item: 'static>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:188:36
|
LL | trait TRI1<T: Iterator<Item: Copy, Item: Send>> {}
@ -342,7 +342,7 @@ LL | trait TRI1<T: Iterator<Item: Copy, Item: Send>> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:190:36
|
LL | trait TRI2<T: Iterator<Item: Copy, Item: Copy>> {}
@ -350,7 +350,7 @@ LL | trait TRI2<T: Iterator<Item: Copy, Item: Copy>> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:192:39
|
LL | trait TRI3<T: Iterator<Item: 'static, Item: 'static>> {}
@ -358,7 +358,7 @@ LL | trait TRI3<T: Iterator<Item: 'static, Item: 'static>> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:194:34
|
LL | trait TRS1: Iterator<Item: Copy, Item: Send> {}
@ -366,7 +366,7 @@ LL | trait TRS1: Iterator<Item: Copy, Item: Send> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:194:34
|
LL | trait TRS1: Iterator<Item: Copy, Item: Send> {}
@ -376,7 +376,7 @@ LL | trait TRS1: Iterator<Item: Copy, Item: Send> {}
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:197:34
|
LL | trait TRS2: Iterator<Item: Copy, Item: Copy> {}
@ -384,7 +384,7 @@ LL | trait TRS2: Iterator<Item: Copy, Item: Copy> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:197:34
|
LL | trait TRS2: Iterator<Item: Copy, Item: Copy> {}
@ -394,7 +394,7 @@ LL | trait TRS2: Iterator<Item: Copy, Item: Copy> {}
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:200:37
|
LL | trait TRS3: Iterator<Item: 'static, Item: 'static> {}
@ -402,7 +402,7 @@ LL | trait TRS3: Iterator<Item: 'static, Item: 'static> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:200:37
|
LL | trait TRS3: Iterator<Item: 'static, Item: 'static> {}
@ -412,7 +412,7 @@ LL | trait TRS3: Iterator<Item: 'static, Item: 'static> {}
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:205:29
|
LL | T: Iterator<Item: Copy, Item: Send>,
@ -420,7 +420,7 @@ LL | T: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:211:29
|
LL | T: Iterator<Item: Copy, Item: Copy>,
@ -428,7 +428,7 @@ LL | T: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:217:32
|
LL | T: Iterator<Item: 'static, Item: 'static>,
@ -436,7 +436,7 @@ LL | T: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:223:32
|
LL | Self: Iterator<Item: Copy, Item: Send>,
@ -444,7 +444,7 @@ LL | Self: Iterator<Item: Copy, Item: Send>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:223:32
|
LL | Self: Iterator<Item: Copy, Item: Send>,
@ -454,7 +454,7 @@ LL | Self: Iterator<Item: Copy, Item: Send>,
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:230:32
|
LL | Self: Iterator<Item: Copy, Item: Copy>,
@ -462,7 +462,7 @@ LL | Self: Iterator<Item: Copy, Item: Copy>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:230:32
|
LL | Self: Iterator<Item: Copy, Item: Copy>,
@ -472,7 +472,7 @@ LL | Self: Iterator<Item: Copy, Item: Copy>,
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:237:35
|
LL | Self: Iterator<Item: 'static, Item: 'static>,
@ -480,7 +480,7 @@ LL | Self: Iterator<Item: 'static, Item: 'static>,
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:237:35
|
LL | Self: Iterator<Item: 'static, Item: 'static>,
@ -490,7 +490,7 @@ LL | Self: Iterator<Item: 'static, Item: 'static>,
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:255:40
|
LL | type TADyn1 = dyn Iterator<Item: Copy, Item: Send>;
@ -498,7 +498,7 @@ LL | type TADyn1 = dyn Iterator<Item: Copy, Item: Send>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:257:44
|
LL | type TADyn2 = Box<dyn Iterator<Item: Copy, Item: Copy>>;
@ -506,7 +506,7 @@ LL | type TADyn2 = Box<dyn Iterator<Item: Copy, Item: Copy>>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:259:43
|
LL | type TADyn3 = dyn Iterator<Item: 'static, Item: 'static>;
@ -514,7 +514,7 @@ LL | type TADyn3 = dyn Iterator<Item: 'static, Item: 'static>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:243:34
|
LL | type A: Iterator<Item: Copy, Item: Send>;
@ -522,7 +522,7 @@ LL | type A: Iterator<Item: Copy, Item: Send>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:247:34
|
LL | type A: Iterator<Item: Copy, Item: Copy>;
@ -530,7 +530,7 @@ LL | type A: Iterator<Item: Copy, Item: Copy>;
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate.rs:251:37
|
LL | type A: Iterator<Item: 'static, Item: 'static>;

2
tests/ui/associated-type-bounds/overlaping-bound-suggestion.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated types `IntoIter` (from trait `IntoIterator`), `IntoIter` (from trait `IntoIterator`), `Item` (from trait `IntoIterator`), `Item` (from trait `IntoIterator`) must be specified
error[E0191]: the value of the associated types `Item`, `Item`, `IntoIter` and `IntoIter` in `IntoIterator` must be specified
--> $DIR/overlaping-bound-suggestion.rs:7:13
|
LL | inner: <IntoIterator<Item: IntoIterator<Item: >>::IntoIterator as Item>::Core,

4
tests/ui/associated-types/associated-type-projection-from-multiple-supertraits.stderr
View File

@ -45,7 +45,7 @@ LL | fn dent_object<COLOR>(c: dyn BoxCar<Color=COLOR>) {
T: Vehicle::Color = COLOR,
T: Box::Color = COLOR
error[E0191]: the value of the associated types `Color` (from trait `Box`), `Color` (from trait `Vehicle`) must be specified
error[E0191]: the value of the associated types `Color` in `Box`, `Color` in `Vehicle` must be specified
--> $DIR/associated-type-projection-from-multiple-supertraits.rs:23:30
|
LL | type Color;
@ -80,7 +80,7 @@ help: use fully-qualified syntax to disambiguate
LL | fn paint<C:BoxCar>(c: C, d: <C as Box>::Color) {
| ~~~~~~~~~~~~
error[E0191]: the value of the associated types `Color` (from trait `Box`), `Color` (from trait `Vehicle`) must be specified
error[E0191]: the value of the associated types `Color` in `Box`, `Color` in `Vehicle` must be specified
--> $DIR/associated-type-projection-from-multiple-supertraits.rs:32:32
|
LL | type Color;

6
tests/ui/associated-types/associated-types-incomplete-object.rs
View File

@ -21,11 +21,11 @@ pub fn main() {
let a = &42isize as &dyn Foo<A=usize, B=char>;
let b = &42isize as &dyn Foo<A=usize>;
//~^ ERROR the value of the associated type `B` (from trait `Foo`) must be specified
//~^ ERROR the value of the associated type `B` in `Foo` must be specified
let c = &42isize as &dyn Foo<B=char>;
//~^ ERROR the value of the associated type `A` (from trait `Foo`) must be specified
//~^ ERROR the value of the associated type `A` in `Foo` must be specified
let d = &42isize as &dyn Foo;
//~^ ERROR the value of the associated types `A` (from trait `Foo`), `B` (from trait
//~^ ERROR the value of the associated types `A` and `B` in `Foo`
}

6
tests/ui/associated-types/associated-types-incomplete-object.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `B` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `B` in `Foo` must be specified
--> $DIR/associated-types-incomplete-object.rs:23:30
|
LL | type B;
@ -7,7 +7,7 @@ LL | type B;
LL | let b = &42isize as &dyn Foo<A=usize>;
| ^^^^^^^^^^^^ help: specify the associated type: `Foo<A=usize, B = Type>`
error[E0191]: the value of the associated type `A` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `A` in `Foo` must be specified
--> $DIR/associated-types-incomplete-object.rs:26:30
|
LL | type A;
@ -16,7 +16,7 @@ LL | type A;
LL | let c = &42isize as &dyn Foo<B=char>;
| ^^^^^^^^^^^ help: specify the associated type: `Foo<B=char, A = Type>`
error[E0191]: the value of the associated types `A` (from trait `Foo`), `B` (from trait `Foo`) must be specified
error[E0191]: the value of the associated types `A` and `B` in `Foo` must be specified
--> $DIR/associated-types-incomplete-object.rs:29:30
|
LL | type A;

2
tests/ui/associated-types/issue-22560.stderr
View File

@ -9,7 +9,7 @@ LL | type Test = dyn Add + Sub;
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add + Sub {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
error[E0191]: the value of the associated types `Output` (from trait `Add`), `Output` (from trait `Sub`) must be specified
error[E0191]: the value of the associated types `Output` in `Add`, `Output` in `Sub` must be specified
--> $DIR/issue-22560.rs:9:17
|
LL | type Output;

2
tests/ui/associated-types/issue-23595-1.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated types `ChildKey` (from trait `Hierarchy`), `Children` (from trait `Hierarchy`), `Value` (from trait `Hierarchy`) must be specified
error[E0191]: the value of the associated types `Value`, `ChildKey` and `Children` in `Hierarchy` must be specified
--> $DIR/issue-23595-1.rs:8:58
|
LL | type Value;

10
tests/ui/associated-types/missing-associated-types.stderr
View File

@ -9,7 +9,7 @@ LL | type Foo<Rhs> = dyn Add<Rhs> + Sub<Rhs> + X<Rhs> + Y<Rhs>;
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add<Rhs> + Sub<Rhs> + X<Rhs> + Y<Rhs> {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
error[E0191]: the value of the associated types `A` (from trait `Y`), `Output` (from trait `Add`), `Output` (from trait `Mul`), `Output` (from trait `Sub`) must be specified
error[E0191]: the value of the associated types `A` in `Y`, `Output` in `Add`, `Output` in `Mul`, `Output` in `Sub` must be specified
--> $DIR/missing-associated-types.rs:12:21
|
LL | type A;
@ -38,7 +38,7 @@ LL | type Bar<Rhs> = dyn Add<Rhs> + Sub<Rhs> + X<Rhs> + Z<Rhs>;
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add<Rhs> + Sub<Rhs> + X<Rhs> + Z<Rhs> {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
error[E0191]: the value of the associated types `A` (from trait `Z`), `B` (from trait `Z`), `Output` (from trait `Add`), `Output` (from trait `Div`), `Output` (from trait `Div`), `Output` (from trait `Mul`), `Output` (from trait `Sub`) must be specified
error[E0191]: the value of the associated types `A` and `B` in `Z`, `Output` and `Output` in `Div`, `Output` in `Add`, `Output` in `Mul`, `Output` in `Sub` must be specified
--> $DIR/missing-associated-types.rs:15:21
|
LL | type A;
@ -74,7 +74,7 @@ LL | type Baz<Rhs> = dyn Add<Rhs> + Sub<Rhs> + Y<Rhs>;
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add<Rhs> + Sub<Rhs> + Y<Rhs> {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
error[E0191]: the value of the associated types `A` (from trait `Y`), `Output` (from trait `Add`), `Output` (from trait `Sub`) must be specified
error[E0191]: the value of the associated types `A` in `Y`, `Output` in `Add`, `Output` in `Sub` must be specified
--> $DIR/missing-associated-types.rs:18:21
|
LL | type A;
@ -102,7 +102,7 @@ LL | type Bat<Rhs> = dyn Add<Rhs> + Sub<Rhs> + Fine<Rhs>;
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add<Rhs> + Sub<Rhs> + Fine<Rhs> {}`
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
error[E0191]: the value of the associated types `Output` (from trait `Add`), `Output` (from trait `Sub`) must be specified
error[E0191]: the value of the associated types `Output` in `Add`, `Output` in `Sub` must be specified
--> $DIR/missing-associated-types.rs:21:21
|
LL | type Bat<Rhs> = dyn Add<Rhs> + Sub<Rhs> + Fine<Rhs>;
@ -115,7 +115,7 @@ help: specify the associated types
LL | type Bat<Rhs> = dyn Add<Rhs, Output = Type> + Sub<Rhs, Output = Type> + Fine<Rhs>;
| ~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~
error[E0191]: the value of the associated types `Output` (from trait `Div`), `Output` (from trait `Mul`) must be specified
error[E0191]: the value of the associated types `Output` in `Div`, `Output` in `Mul` must be specified
--> $DIR/missing-associated-types.rs:24:21
|
LL | type Bal<Rhs> = dyn X<Rhs>;

2
tests/ui/error-codes/E0191.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Bar` (from trait `Trait`) must be specified
error[E0191]: the value of the associated type `Bar` in `Trait` must be specified
--> $DIR/E0191.rs:5:16
|
LL | type Bar;

2
tests/ui/error-codes/E0220.stderr
View File

@ -4,7 +4,7 @@ error[E0220]: associated type `F` not found for `Trait`
LL | type Foo = dyn Trait<F=i32>;
| ^ help: `Trait` has the following associated type: `Bar`
error[E0191]: the value of the associated type `Bar` (from trait `Trait`) must be specified
error[E0191]: the value of the associated type `Bar` in `Trait` must be specified
--> $DIR/E0220.rs:5:16
|
LL | type Bar;

6
tests/ui/error-codes/E0719.stderr
View File

@ -1,4 +1,4 @@
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/E0719.rs:1:33
|
LL | trait Foo: Iterator<Item = i32, Item = i32> {}
@ -6,7 +6,7 @@ LL | trait Foo: Iterator<Item = i32, Item = i32> {}
| |
| `Item` bound here first
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/E0719.rs:1:33
|
LL | trait Foo: Iterator<Item = i32, Item = i32> {}
@ -16,7 +16,7 @@ LL | trait Foo: Iterator<Item = i32, Item = i32> {}
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0719]: the value of the associated type `Item` (from trait `Iterator`) is already specified
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/E0719.rs:7:42
|
LL | fn test() -> Box<dyn Iterator<Item = (), Item = Unit>> {

2
tests/ui/issues/issue-19482.rs
View File

@ -8,6 +8,6 @@ trait Foo {
}
fn bar(x: &dyn Foo) {}
//~^ ERROR the associated type `A` (from trait `Foo`) must be specified
//~^ ERROR the associated type `A` in `Foo` must be specified
pub fn main() {}

2
tests/ui/issues/issue-19482.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `A` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `A` in `Foo` must be specified
--> $DIR/issue-19482.rs:10:16
|
LL | type A;

2
tests/ui/issues/issue-21950.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Output` (from trait `Add`) must be specified
error[E0191]: the value of the associated type `Output` in `Add` must be specified
--> $DIR/issue-21950.rs:10:25
|
LL | type Output;

2
tests/ui/issues/issue-22434.rs
View File

@ -3,6 +3,6 @@ pub trait Foo {
}
type I<'a> = &'a (dyn Foo + 'a);
//~^ ERROR the value of the associated type `A` (from trait `Foo`) must be specified
//~^ ERROR the value of the associated type `A` in `Foo` must be specified
fn main() {}

2
tests/ui/issues/issue-22434.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `A` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `A` in `Foo` must be specified
--> $DIR/issue-22434.rs:5:23
|
LL | type A;

2
tests/ui/issues/issue-23024.rs
View File

@ -8,5 +8,5 @@ fn main()
println!("{:?}",(vfnfer[0] as dyn Fn)(3));
//~^ ERROR the precise format of `Fn`-family traits'
//~| ERROR missing generics for trait `Fn`
//~| ERROR the value of the associated type `Output` (from trait `FnOnce`)
//~| ERROR the value of the associated type `Output` in `FnOnce`
}

2
tests/ui/issues/issue-23024.stderr
View File

@ -18,7 +18,7 @@ help: add missing generic argument
LL | println!("{:?}",(vfnfer[0] as dyn Fn<Args>)(3));
| ++++++
error[E0191]: the value of the associated type `Output` (from trait `FnOnce`) must be specified
error[E0191]: the value of the associated type `Output` in `FnOnce` must be specified
--> $DIR/issue-23024.rs:8:39
|
LL | println!("{:?}",(vfnfer[0] as dyn Fn)(3));

4
tests/ui/issues/issue-28344.stderr
View File

@ -12,7 +12,7 @@ help: use `dyn`
LL | let x: u8 = <dyn BitXor>::bitor(0 as u8, 0 as u8);
| ++++ +
error[E0191]: the value of the associated type `Output` (from trait `BitXor`) must be specified
error[E0191]: the value of the associated type `Output` in `BitXor` must be specified
--> $DIR/issue-28344.rs:4:17
|
LL | let x: u8 = BitXor::bitor(0 as u8, 0 as u8);
@ -40,7 +40,7 @@ help: use `dyn`
LL | let g = <dyn BitXor>::bitor;
| ++++ +
error[E0191]: the value of the associated type `Output` (from trait `BitXor`) must be specified
error[E0191]: the value of the associated type `Output` in `BitXor` must be specified
--> $DIR/issue-28344.rs:10:13
|
LL | let g = BitXor::bitor;

4
tests/ui/object-safety/assoc_type_bounds.rs
View File

@ -7,7 +7,7 @@ trait Foo<T> {
trait Cake {}
impl Cake for () {}
fn foo(_: &dyn Foo<()>) {} //~ ERROR: the value of the associated type `Bar` (from trait `Foo`) must be specified
fn bar(_: &dyn Foo<i32>) {} //~ ERROR: the value of the associated type `Bar` (from trait `Foo`) must be specified
fn foo(_: &dyn Foo<()>) {} //~ ERROR: the value of the associated type `Bar` in `Foo` must be specified
fn bar(_: &dyn Foo<i32>) {} //~ ERROR: the value of the associated type `Bar` in `Foo` must be specified
fn main() {}

4
tests/ui/object-safety/assoc_type_bounds.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Bar` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `Bar` in `Foo` must be specified
--> $DIR/assoc_type_bounds.rs:10:16
|
LL | type Bar
@ -7,7 +7,7 @@ LL | type Bar
LL | fn foo(_: &dyn Foo<()>) {}
| ^^^^^^^ help: specify the associated type: `Foo<(), Bar = Type>`
error[E0191]: the value of the associated type `Bar` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `Bar` in `Foo` must be specified
--> $DIR/assoc_type_bounds.rs:11:16
|
LL | type Bar

4
tests/ui/object-safety/assoc_type_bounds2.rs
View File

@ -7,7 +7,7 @@ trait Foo<T> {
trait Cake {}
impl Cake for () {}
fn foo(_: &dyn Foo<()>) {} //~ ERROR: the value of the associated type `Bar` (from trait `Foo`) must be specified
fn bar(_: &dyn Foo<i32>) {} //~ ERROR: the value of the associated type `Bar` (from trait `Foo`) must be specified
fn foo(_: &dyn Foo<()>) {} //~ ERROR: the value of the associated type `Bar` in `Foo` must be specified
fn bar(_: &dyn Foo<i32>) {} //~ ERROR: the value of the associated type `Bar` in `Foo` must be specified
fn main() {}

4
tests/ui/object-safety/assoc_type_bounds2.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Bar` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `Bar` in `Foo` must be specified
--> $DIR/assoc_type_bounds2.rs:10:16
|
LL | type Bar
@ -7,7 +7,7 @@ LL | type Bar
LL | fn foo(_: &dyn Foo<()>) {}
| ^^^^^^^ help: specify the associated type: `Foo<(), Bar = Type>`
error[E0191]: the value of the associated type `Bar` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `Bar` in `Foo` must be specified
--> $DIR/assoc_type_bounds2.rs:11:16
|
LL | type Bar

4
tests/ui/object-safety/assoc_type_bounds_sized_others.rs
View File

@ -10,7 +10,7 @@ trait Foo {
}
fn foo(_: &dyn Foo) {}
//~^ ERROR the value of the associated type `Bop` (from trait `Foo`) must be specified
//~^ ERROR the value of the associated type `Bop` in `Foo` must be specified
trait Bar {
type Bop;
@ -20,6 +20,6 @@ trait Bar {
}
fn bar(_: &dyn Bar) {}
//~^ ERROR the value of the associated type `Bop` (from trait `Bar`) must be specified
//~^ ERROR the value of the associated type `Bop` in `Bar` must be specified
fn main() {}

4
tests/ui/object-safety/assoc_type_bounds_sized_others.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Bop` (from trait `Foo`) must be specified
error[E0191]: the value of the associated type `Bop` in `Foo` must be specified
--> $DIR/assoc_type_bounds_sized_others.rs:12:16
|
LL | type Bop;
@ -7,7 +7,7 @@ LL | type Bop;
LL | fn foo(_: &dyn Foo) {}
| ^^^ help: specify the associated type: `Foo<Bop = Type>`
error[E0191]: the value of the associated type `Bop` (from trait `Bar`) must be specified
error[E0191]: the value of the associated type `Bop` in `Bar` must be specified
--> $DIR/assoc_type_bounds_sized_others.rs:22:16
|
LL | type Bop;

2
tests/ui/suggestions/trait-hidden-method.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Item` (from trait `Iterator`) must be specified
error[E0191]: the value of the associated type `Item` in `Iterator` must be specified
--> $DIR/trait-hidden-method.rs:6:33
|
LL | Box::new(1..=10) as Box<dyn Iterator>

2
tests/ui/suggestions/use-type-argument-instead-of-assoc-type.stderr
View File

@ -14,7 +14,7 @@ help: replace the generic bounds with the associated types
LL | i: Box<dyn T<usize, usize, A = usize, C = usize, B=usize>>,
| +++ +++
error[E0191]: the value of the associated types `A` (from trait `T`), `C` (from trait `T`) must be specified
error[E0191]: the value of the associated types `C` and `A` in `T` must be specified
--> $DIR/use-type-argument-instead-of-assoc-type.rs:7:16
|
LL | type A;

2
tests/ui/traits/alias/object-fail.stderr
View File

@ -9,7 +9,7 @@ note: for a trait to be "object safe" it needs to allow building a vtable to all
|
= note: the trait cannot be made into an object because it uses `Self` as a type parameter
error[E0191]: the value of the associated type `Item` (from trait `Iterator`) must be specified
error[E0191]: the value of the associated type `Item` in `Iterator` must be specified
--> $DIR/object-fail.rs:9:17
|
LL | let _: &dyn IteratorAlias = &vec![123].into_iter();

7
tests/ui/traits/object/object-unsafe-missing-assoc-type.rs Normal file
View File

@ -0,0 +1,7 @@
trait Foo {
type Bar<T>;
}
fn bar(x: &dyn Foo) {} //~ ERROR the trait `Foo` cannot be made into an object
fn main() {}

18
tests/ui/traits/object/object-unsafe-missing-assoc-type.stderr Normal file
View File

@ -0,0 +1,18 @@
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/object-unsafe-missing-assoc-type.rs:5:16
|
LL | fn bar(x: &dyn Foo) {}
| ^^^ `Foo` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/object-unsafe-missing-assoc-type.rs:2:10
|
LL | trait Foo {
| --- this trait cannot be made into an object...
LL | type Bar<T>;
| ^^^ ...because it contains the generic associated type `Bar`
= help: consider moving `Bar` to another trait
error: aborting due to previous error
For more information about this error, try `rustc --explain E0038`.

4
tests/ui/traits/object/with-self-in-projection-output-bad.rs
View File

@ -43,8 +43,8 @@ impl NormalizableHelper for u32
fn main() {
let _x: Box<dyn Helper<Target=i32>> = Box::new(2u32);
//~^ ERROR the value of the associated type `Output` (from trait `Base`) must be specified
//~^ ERROR the value of the associated type `Output` in `Base` must be specified
let _y: Box<dyn NormalizableHelper<Target=i32>> = Box::new(2u32);
//~^ ERROR the value of the associated type `Output` (from trait `Base`) must be specified
//~^ ERROR the value of the associated type `Output` in `Base` must be specified
}

4
tests/ui/traits/object/with-self-in-projection-output-bad.stderr
View File

@ -1,4 +1,4 @@
error[E0191]: the value of the associated type `Output` (from trait `Base`) must be specified
error[E0191]: the value of the associated type `Output` in `Base` must be specified
--> $DIR/with-self-in-projection-output-bad.rs:45:21
|
LL | type Output;
@ -7,7 +7,7 @@ LL | type Output;
LL | let _x: Box<dyn Helper<Target=i32>> = Box::new(2u32);
| ^^^^^^^^^^^^^^^^^^ help: specify the associated type: `Helper<Target=i32, Output = Type>`
error[E0191]: the value of the associated type `Output` (from trait `Base`) must be specified
error[E0191]: the value of the associated type `Output` in `Base` must be specified
--> $DIR/with-self-in-projection-output-bad.rs:48:21
|
LL | type Output;