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c8c25ce5a1
spastorino noticed some silly expressions like `item_id.def_id.def_id`. This commit renames several `def_id: OwnerId` fields as `owner_id`, so those expressions become `item_id.owner_id.def_id`. `item_id.owner_id.local_def_id` would be even clearer, but the use of `def_id` for values of type `LocalDefId` is *very* widespread, so I left that alone.
16 lines
571 B
Rust
16 lines
571 B
Rust
use rustc_errors::struct_span_err;
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use rustc_middle::ty::TyCtxt;
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use rustc_span::symbol::sym;
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pub fn test_variance(tcx: TyCtxt<'_>) {
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// For unit testing: check for a special "rustc_variance"
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// attribute and report an error with various results if found.
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for id in tcx.hir().items() {
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if tcx.has_attr(id.owner_id.to_def_id(), sym::rustc_variance) {
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let variances_of = tcx.variances_of(id.owner_id);
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struct_span_err!(tcx.sess, tcx.def_span(id.owner_id), E0208, "{:?}", variances_of)
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.emit();
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}
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}
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}
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