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Include ForeignItem when visiting types for WF check
Addresses Issue 95665 by including `hir::Node::ForeignItem` as a valid type to visit in `diagnostic_hir_wf_check`. Fixes #95665
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@ -1,7 +1,7 @@
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use crate::collect::ItemCtxt;
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use rustc_hir as hir;
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use rustc_hir::intravisit::{self, Visitor};
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use rustc_hir::HirId;
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use rustc_hir::{ForeignItem, ForeignItemKind, HirId};
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use rustc_infer::infer::TyCtxtInferExt;
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use rustc_infer::traits::TraitEngine;
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use rustc_infer::traits::{ObligationCause, WellFormedLoc};
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@ -141,6 +141,9 @@ fn diagnostic_hir_wf_check<'tcx>(
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ref item => bug!("Unexpected item {:?}", item),
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},
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hir::Node::Field(field) => Some(field.ty),
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hir::Node::ForeignItem(ForeignItem {
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kind: ForeignItemKind::Static(ty, _), ..
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}) => Some(*ty),
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ref node => bug!("Unexpected node {:?}", node),
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},
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WellFormedLoc::Param { function: _, param_idx } => {
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18
src/test/ui/wf/issue-95665.rs
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18
src/test/ui/wf/issue-95665.rs
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@ -0,0 +1,18 @@
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// Regression test for the ICE described in #95665.
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// Ensure that the expected error is output (and thus that there is no ICE)
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pub trait Trait: {}
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pub struct Struct<T: Trait> {
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member: T,
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}
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// uncomment and bug goes away
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// impl Trait for u8 {}
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extern "C" {
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static VAR: Struct<u8>;
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//~^ 14:17: 14:27: the trait bound `u8: Trait` is not satisfied [E0277]
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}
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fn main() {}
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15
src/test/ui/wf/issue-95665.stderr
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15
src/test/ui/wf/issue-95665.stderr
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error[E0277]: the trait bound `u8: Trait` is not satisfied
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--> $DIR/issue-95665.rs:14:17
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LL | static VAR: Struct<u8>;
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| ^^^^^^^^^^ the trait `Trait` is not implemented for `u8`
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note: required by a bound in `Struct`
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--> $DIR/issue-95665.rs:6:22
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LL | pub struct Struct<T: Trait> {
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| ^^^^^ required by this bound in `Struct`
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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