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Hide compiler_builtins in the prelude

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This crate is a private implementation detail. We only need to insert it
into the crate graph for linking and should not expose any of its public
API.

Fixes #113533
This commit is contained in:
Amanieu d'Antras 2023-07-10 23:16:28 +01:00
parent 8ca44ef9ca
commit 07f855d781
23 changed files with 348 additions and 345 deletions
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29
compiler/rustc_builtin_macros/src/standard_library_imports.rs
View file

@ -44,20 +44,29 @@ pub fn inject(
// .rev() to preserve ordering above in combination with insert(0, ...)
for &name in names.iter().rev() {
let ident = if edition >= Edition2018 {
Ident::new(name, span)
} else {
Ident::new(name, call_site)
};
krate.items.insert(
0,
let ident_span = if edition >= Edition2018 { span } else { call_site };
let item = if name == sym::compiler_builtins {
// compiler_builtins is a private implementation detail. We only
// need to insert it into the crate graph for linking and should not
// expose any of its public API.
//
// FIXME(#113634) We should inject this during post-processing like
// we do for the panic runtime, profiler runtime, etc.
cx.item(
span,
ident,
Ident::new(kw::Underscore, ident_span),
thin_vec![],
ast::ItemKind::ExternCrate(Some(name)),
)
} else {
cx.item(
span,
Ident::new(name, ident_span),
thin_vec![cx.attr_word(sym::macro_use, span)],
ast::ItemKind::ExternCrate(None),
),
);
)
};
krate.items.insert(0, item);
}
// The crates have been injected, the assumption is that the first one is