bjoernager/rust
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Improve error message for unsupported crate

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This commit is contained in:
hanar3 2022-09-14 12:19:42 -03:00
parent 1463688700
commit dddfb7db24
1 changed files with 3 additions and 2 deletions
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5
compiler/rustc_middle/src/ty/query.rs
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@ -275,10 +275,11 @@ macro_rules! define_callbacks {
fn default() -> Self {
Providers {
$($name: |_, key| bug!(
"`tcx.{}({:?})` unsupported by its crate; \
perhaps the `{}` query was never assigned a provider function",
"`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.",
stringify!($name),
key,
if key.query_crate_is_local() { "local" } : { "external" } ,
stringify!($name),
),)*
}