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Rollup merge of #76581 - lcnr:bound-too-generic, r=eddyb

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do not ICE on bound variables, return `TooGeneric` instead

fixes #73260, fixes #74634, fixes #76595

r? @nikomatsakis
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ecstatic-morse 2020-09-21 20:40:47 -07:00 • committed by GitHub
commit 30f1bab7e6
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8 changed files with 128 additions and 6 deletions
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4
compiler/rustc_middle/src/ty/layout.rs
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@ -1259,11 +1259,11 @@ impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>> {
tcx.layout_raw(param_env.and(normalized))?
}
ty::Bound(..) | ty::Placeholder(..) | ty::GeneratorWitness(..) | ty::Infer(_) => {
ty::Placeholder(..) | ty::GeneratorWitness(..) | ty::Infer(_) => {
bug!("Layout::compute: unexpected type `{}`", ty)
}
ty::Param(_) | ty::Error(_) => {
ty::Bound(..) | ty::Param(_) | ty::Error(_) => {
return Err(LayoutError::Unknown(ty));
}
})