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rustc_interface: Add a new query pre_configure

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It partially expands crate attributes before the main expansion pass (without modifying the crate), and the produced preliminary crate attribute list is used for querying a few attributes that are required very early.

Crate-level cfg attributes are then expanded normally during the main expansion pass, like attributes on any other nodes.
This commit is contained in:
Vadim Petrochenkov 2023-03-14 16:53:04 +04:00
parent f26da39e04
commit aca1b1e0b3
12 changed files with 108 additions and 84 deletions
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2
compiler/rustc_middle/src/query/mod.rs
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@ -2116,7 +2116,7 @@ rustc_queries! {
desc { "raw operations for metadata file access" }
}
query crate_for_resolver((): ()) -> &'tcx Steal<rustc_ast::ast::Crate> {
query crate_for_resolver((): ()) -> &'tcx Steal<(rustc_ast::Crate, rustc_ast::AttrVec)> {
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desc { "the ast before macro expansion and name resolution" }