bjoernager/rust
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Wrap QueryDescription into a macro.

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This commit is contained in:
Camille GILLOT 2021-01-19 19:43:59 +01:00
parent cdc0b199a9
commit 8e5d613a11
3 changed files with 17 additions and 32 deletions
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8
compiler/rustc_macros/src/query.rs
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@ -344,7 +344,6 @@ fn add_query_description_impl(
impls: &mut proc_macro2::TokenStream,
) {
let name = &query.name;
let arg = &query.arg;
let key = &query.key.0;
// Find out if we should cache the query on disk
@ -414,7 +413,7 @@ fn add_query_description_impl(
let desc = quote! {
#[allow(unused_variables)]
fn describe(tcx: QueryCtxt<'tcx>, key: #arg) -> String {
fn describe(tcx: QueryCtxt<'tcx>, key: Self::Key) -> String {
let (#tcx, #key) = (*tcx, key);
::rustc_middle::ty::print::with_no_trimmed_paths(|| format!(#desc).into())
}
@ -520,7 +519,8 @@ pub fn rustc_queries(input: TokenStream) -> TokenStream {
$($macro)*(#cached_queries);
}
}
#query_description_stream
macro_rules! rustc_query_description {
() => { #query_description_stream }
}
})
}