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improve error message for when a query isn't supported

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This commit is contained in:
hanar3 2022-09-17 20:25:37 -03:00
parent dddfb7db24
commit 0405a5d4e9
1 changed files with 3 additions and 3 deletions
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6
compiler/rustc_middle/src/ty/query.rs
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@ -275,11 +275,11 @@ macro_rules! define_callbacks {
fn default() -> Self {
Providers {
$($name: |_, key| bug!(
"`tcx.{}({:?})` unsupported for {} crate; \
perhaps the `{}` query was never assigned a provider function. Queries can be either made to the local crate, or the external crate. This error means you tried to use it for one that's not supported.",
"`tcx.{}({:?})` is not supported for external or local crate;\n
hint: Queries can be either made to the local crate, or the external crate. This error means you tried to use it for one that's not supported (likely the local crate).\n
If that's not the case, {} was likely never assigned to a provider function.\n",
stringify!($name),
key,
if key.query_crate_is_local() { "local" } : { "external" } ,
stringify!($name),
),)*
}