only query params_in_repr
if def kind is adt
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9e3e517446
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@ -358,7 +358,7 @@ fn find_item_ty_spans(
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match ty.kind {
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match ty.kind {
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hir::TyKind::Path(hir::QPath::Resolved(_, path)) => {
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hir::TyKind::Path(hir::QPath::Resolved(_, path)) => {
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if let Res::Def(kind, def_id) = path.res
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if let Res::Def(kind, def_id) = path.res
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&& !matches!(kind, DefKind::TyAlias)
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&& matches!(kind, DefKind::Enum | DefKind::Struct | DefKind::Union)
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{
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{
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let check_params = def_id.as_local().map_or(true, |def_id| {
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let check_params = def_id.as_local().map_or(true, |def_id| {
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if def_id == needle {
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if def_id == needle {
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@ -1,5 +0,0 @@
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//@ known-bug: rust-lang/rust#128327
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use std::ops::Deref;
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struct Apple((Apple, <&'static [f64] as Deref>::Target(Banana ? Citron)));
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fn main(){}
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@ -1,2 +1,5 @@
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pub struct W<T>(T);
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pub struct W<T>(T);
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pub type Wrapper<T> = W<T>;
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pub type Wrapper<T> = W<T>;
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pub trait Trait {
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type T;
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}
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16
tests/ui/infinite/infinite-assoc.rs
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16
tests/ui/infinite/infinite-assoc.rs
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@ -0,0 +1,16 @@
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//@ aux-build: alias.rs
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// issue#128327
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extern crate alias;
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use alias::Trait;
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struct S;
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impl Trait for S {
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type T = ();
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}
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struct A((A, <S as Trait>::T<NOT_EXIST?>));
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//~^ ERROR: invalid `?` in type
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//~| ERROR: recursive type `A` has infinite size
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fn main() {}
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25
tests/ui/infinite/infinite-assoc.stderr
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25
tests/ui/infinite/infinite-assoc.stderr
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@ -0,0 +1,25 @@
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error: invalid `?` in type
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--> $DIR/infinite-assoc.rs:12:39
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LL | struct A((A, <S as Trait>::T<NOT_EXIST?>));
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| ^ `?` is only allowed on expressions, not types
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help: if you meant to express that the type might not contain a value, use the `Option` wrapper type
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LL | struct A((A, <S as Trait>::T<Option<NOT_EXIST>>));
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| +++++++ ~
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error[E0072]: recursive type `A` has infinite size
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--> $DIR/infinite-assoc.rs:12:1
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LL | struct A((A, <S as Trait>::T<NOT_EXIST?>));
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| ^^^^^^^^ - recursive without indirection
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help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
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LL | struct A((Box<A>, <S as Trait>::T<NOT_EXIST?>));
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| ++++ +
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0072`.
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