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rust/compiler/rustc_query_impl/src
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bors cfb5ae26a4 Auto merge of #100748 - SparrowLii:query_depth, r=cjgillot 
add `depth_limit` in `QueryVTable` to avoid entering a new tcx in `layout_of`

Fixes #49735
Updates #48685

The `layout_of` query needs to check whether it overflows the depth limit, and the current implementation needs to create a new `ImplicitCtxt` inside `layout_of`. However, `start_query` will already create a new `ImplicitCtxt`, so we can check the depth limit in `start_query`.

We can tell whether we need to check the depth limit simply by whether the return value of `to_debug_str` of the query is `layout_of`. But I think adding the `depth_limit` field in `QueryVTable` may be more elegant and more scalable.
2022-08-25 21:27:38 +00:00
..
keys.rs Use LocalDefId for closures more 2022-07-30 15:59:17 -05:00
lib.rs Move most of make_query into a generic function, away from the macro 2022-08-23 21:52:29 -05:00
on_disk_cache.rs rmeta/query cache: don't write string values of preinterned symbols 2022-08-20 15:39:21 +03:00
plumbing.rs Auto merge of #100748 - SparrowLii:query_depth, r=cjgillot 2022-08-25 21:27:38 +00:00
profiling_support.rs Remove $tcx metavariable from rustc_query_append 2022-08-23 21:33:19 -05:00
README.md Move the query system to rustc_query_impl. 2021-02-19 17:51:58 +01:00
values.rs Do not report cycle error when inferring return type for suggestion 2022-08-16 03:00:32 +00:00

README.md

For more information about how the query system works, see the rustc dev guide.