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Emit an error when rustc_doc_primitive has an unknown value #123584

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Merged
merged 1 commit into from
Apr 7, 2024
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Emit an error when rustc_doc_primitive has an unknown value #123584

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12 changes: 10 additions & 2 deletions src/librustdoc/clean/types.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ use rustc_hir::{BodyId, Mutability};
use rustc_hir_analysis::check::intrinsic::intrinsic_operation_unsafety;
use rustc_index::IndexVec;
use rustc_metadata::rendered_const;
use rustc_middle::span_bug;
use rustc_middle::ty::fast_reject::SimplifiedType;
use rustc_middle::ty::{self, TyCtxt, Visibility};
use rustc_resolve::rustdoc::{
Expand Down Expand Up @@ -266,8 +267,15 @@ impl ExternalCrate {
let as_primitive = |res: Res<!>| {
let Res::Def(DefKind::Mod, def_id) = res else { return None };
tcx.get_attrs(def_id, sym::rustc_doc_primitive).find_map(|attr| {
// FIXME: should warn on unknown primitives?
Some((def_id, PrimitiveType::from_symbol(attr.value_str()?)?))
let attr_value = attr.value_str().expect("syntax should already be validated");
let Some(prim) = PrimitiveType::from_symbol(attr_value) else {
span_bug!(
attr.span,
"primitive `{attr_value}` is not a member of `PrimitiveType`"
);
};

Some((def_id, prim))
})
};

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