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-rw-r--r--compiler/rustc_interface/src/passes.rs51
-rw-r--r--compiler/rustc_interface/src/queries.rs41
2 files changed, 58 insertions, 34 deletions
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index 7c1f6d8c9b8..7623c5f7327 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -3,7 +3,6 @@ use crate::interface::{Compiler, Result};
 use crate::proc_macro_decls;
 use crate::util;
 
-use ast::CRATE_NODE_ID;
 use rustc_ast::{self as ast, visit};
 use rustc_borrowck as mir_borrowck;
 use rustc_codegen_ssa::traits::CodegenBackend;
@@ -76,22 +75,14 @@ pub fn register_plugins<'a>(
     sess: &'a Session,
     metadata_loader: &'a dyn MetadataLoader,
     register_lints: impl Fn(&Session, &mut LintStore),
-    krate: &mut ast::Crate,
+    pre_configured_attrs: &[ast::Attribute],
     crate_name: Symbol,
 ) -> Result<LintStore> {
-    sess.time("attributes_injection", || {
-        rustc_builtin_macros::cmdline_attrs::inject(
-            krate,
-            &sess.parse_sess,
-            &sess.opts.unstable_opts.crate_attr,
-        )
-    });
-
-    let features = rustc_expand::config::features(sess, krate, CRATE_NODE_ID);
     // these need to be set "early" so that expansion sees `quote` if enabled.
+    let features = rustc_expand::config::features(sess, pre_configured_attrs);
     sess.init_features(features);
 
-    let crate_types = util::collect_crate_types(sess, &krate.attrs);
+    let crate_types = util::collect_crate_types(sess, pre_configured_attrs);
     sess.init_crate_types(crate_types);
 
     let stable_crate_id = StableCrateId::new(
@@ -117,8 +108,9 @@ pub fn register_plugins<'a>(
     let mut lint_store = rustc_lint::new_lint_store(sess.enable_internal_lints());
     register_lints(sess, &mut lint_store);
 
-    let registrars = sess
-        .time("plugin_loading", || plugin::load::load_plugins(sess, metadata_loader, &krate.attrs));
+    let registrars = sess.time("plugin_loading", || {
+        plugin::load::load_plugins(sess, metadata_loader, pre_configured_attrs)
+    });
     sess.time("plugin_registration", || {
         let mut registry = plugin::Registry { lint_store: &mut lint_store };
         for registrar in registrars {
@@ -173,19 +165,29 @@ impl LintStoreExpand for LintStoreExpandImpl<'_> {
 /// harness if one is to be provided, injection of a dependency on the
 /// standard library and prelude, and name resolution.
 #[instrument(level = "trace", skip(krate, resolver))]
-fn configure_and_expand(mut krate: ast::Crate, resolver: &mut Resolver<'_, '_>) -> ast::Crate {
+fn configure_and_expand(
+    mut krate: ast::Crate,
+    pre_configured_attrs: &[ast::Attribute],
+    resolver: &mut Resolver<'_, '_>,
+) -> ast::Crate {
     let tcx = resolver.tcx();
     let sess = tcx.sess;
     let lint_store = unerased_lint_store(tcx);
     let crate_name = tcx.crate_name(LOCAL_CRATE);
-    pre_expansion_lint(sess, lint_store, tcx.registered_tools(()), &krate, crate_name);
+    let lint_check_node = (&krate, pre_configured_attrs);
+    pre_expansion_lint(sess, lint_store, tcx.registered_tools(()), lint_check_node, crate_name);
     rustc_builtin_macros::register_builtin_macros(resolver);
 
-    sess.time("crate_injection", || {
-        rustc_builtin_macros::standard_library_imports::inject(&mut krate, resolver, sess)
+    let num_standard_library_imports = sess.time("crate_injection", || {
+        rustc_builtin_macros::standard_library_imports::inject(
+            &mut krate,
+            pre_configured_attrs,
+            resolver,
+            sess,
+        )
     });
 
-    util::check_attr_crate_type(sess, &krate.attrs, &mut resolver.lint_buffer());
+    util::check_attr_crate_type(sess, pre_configured_attrs, &mut resolver.lint_buffer());
 
     // Expand all macros
     krate = sess.time("macro_expand_crate", || {
@@ -222,7 +224,7 @@ fn configure_and_expand(mut krate: ast::Crate, resolver: &mut Resolver<'_, '_>)
 
         // Create the config for macro expansion
         let features = sess.features_untracked();
-        let recursion_limit = get_recursion_limit(&krate.attrs, sess);
+        let recursion_limit = get_recursion_limit(pre_configured_attrs, sess);
         let cfg = rustc_expand::expand::ExpansionConfig {
             features: Some(features),
             recursion_limit,
@@ -235,6 +237,7 @@ fn configure_and_expand(mut krate: ast::Crate, resolver: &mut Resolver<'_, '_>)
 
         let lint_store = LintStoreExpandImpl(lint_store);
         let mut ecx = ExtCtxt::new(sess, cfg, resolver, Some(&lint_store));
+        ecx.num_standard_library_imports = num_standard_library_imports;
         // Expand macros now!
         let krate = sess.time("expand_crate", || ecx.monotonic_expander().expand_crate(krate));
 
@@ -356,7 +359,7 @@ fn early_lint_checks(tcx: TyCtxt<'_>, (): ()) {
         tcx.registered_tools(()),
         Some(lint_buffer),
         rustc_lint::BuiltinCombinedEarlyLintPass::new(),
-        &**krate,
+        (&**krate, &*krate.attrs),
     )
 }
 
@@ -557,9 +560,9 @@ fn resolver_for_lowering<'tcx>(
 ) -> &'tcx Steal<(ty::ResolverAstLowering, Lrc<ast::Crate>)> {
     let arenas = Resolver::arenas();
     let _ = tcx.registered_tools(()); // Uses `crate_for_resolver`.
-    let krate = tcx.crate_for_resolver(()).steal();
-    let mut resolver = Resolver::new(tcx, &krate, &arenas);
-    let krate = configure_and_expand(krate, &mut resolver);
+    let (krate, pre_configured_attrs) = tcx.crate_for_resolver(()).steal();
+    let mut resolver = Resolver::new(tcx, &pre_configured_attrs, krate.spans.inner_span, &arenas);
+    let krate = configure_and_expand(krate, &pre_configured_attrs, &mut resolver);
 
     // Make sure we don't mutate the cstore from here on.
     tcx.untracked().cstore.leak();
diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index c618297bdc0..d2293780836 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -88,8 +88,9 @@ pub struct Queries<'tcx> {
 
     dep_graph_future: Query<Option<DepGraphFuture>>,
     parse: Query<ast::Crate>,
+    pre_configure: Query<(ast::Crate, ast::AttrVec)>,
     crate_name: Query<Symbol>,
-    register_plugins: Query<(ast::Crate, Lrc<LintStore>)>,
+    register_plugins: Query<(ast::Crate, ast::AttrVec, Lrc<LintStore>)>,
     dep_graph: Query<DepGraph>,
     // This just points to what's in `gcx_cell`.
     gcx: Query<&'tcx GlobalCtxt<'tcx>>,
@@ -106,6 +107,7 @@ impl<'tcx> Queries<'tcx> {
             hir_arena: WorkerLocal::new(|_| rustc_hir::Arena::default()),
             dep_graph_future: Default::default(),
             parse: Default::default(),
+            pre_configure: Default::default(),
             crate_name: Default::default(),
             register_plugins: Default::default(),
             dep_graph: Default::default(),
@@ -133,17 +135,36 @@ impl<'tcx> Queries<'tcx> {
             .compute(|| passes::parse(self.session()).map_err(|mut parse_error| parse_error.emit()))
     }
 
-    pub fn register_plugins(&self) -> Result<QueryResult<'_, (ast::Crate, Lrc<LintStore>)>> {
+    pub fn pre_configure(&self) -> Result<QueryResult<'_, (ast::Crate, ast::AttrVec)>> {
+        self.pre_configure.compute(|| {
+            let mut krate = self.parse()?.steal();
+
+            let sess = self.session();
+            rustc_builtin_macros::cmdline_attrs::inject(
+                &mut krate,
+                &sess.parse_sess,
+                &sess.opts.unstable_opts.crate_attr,
+            );
+
+            let pre_configured_attrs =
+                rustc_expand::config::pre_configure_attrs(sess, &krate.attrs);
+            Ok((krate, pre_configured_attrs))
+        })
+    }
+
+    pub fn register_plugins(
+        &self,
+    ) -> Result<QueryResult<'_, (ast::Crate, ast::AttrVec, Lrc<LintStore>)>> {
         self.register_plugins.compute(|| {
             let crate_name = *self.crate_name()?.borrow();
-            let mut krate = self.parse()?.steal();
+            let (krate, pre_configured_attrs) = self.pre_configure()?.steal();
 
             let empty: &(dyn Fn(&Session, &mut LintStore) + Sync + Send) = &|_, _| {};
             let lint_store = passes::register_plugins(
                 self.session(),
                 &*self.codegen_backend().metadata_loader(),
                 self.compiler.register_lints.as_deref().unwrap_or_else(|| empty),
-                &mut krate,
+                &pre_configured_attrs,
                 crate_name,
             )?;
 
@@ -154,17 +175,17 @@ impl<'tcx> Queries<'tcx> {
             // called, which happens within passes::register_plugins().
             self.dep_graph_future().ok();
 
-            Ok((krate, Lrc::new(lint_store)))
+            Ok((krate, pre_configured_attrs, Lrc::new(lint_store)))
         })
     }
 
     fn crate_name(&self) -> Result<QueryResult<'_, Symbol>> {
         self.crate_name.compute(|| {
             Ok({
-                let parse_result = self.parse()?;
-                let krate = parse_result.borrow();
+                let pre_configure_result = self.pre_configure()?;
+                let (_, pre_configured_attrs) = &*pre_configure_result.borrow();
                 // parse `#[crate_name]` even if `--crate-name` was passed, to make sure it matches.
-                find_crate_name(self.session(), &krate.attrs)
+                find_crate_name(self.session(), pre_configured_attrs)
             })
         })
     }
@@ -188,7 +209,7 @@ impl<'tcx> Queries<'tcx> {
     pub fn global_ctxt(&'tcx self) -> Result<QueryResult<'_, &'tcx GlobalCtxt<'tcx>>> {
         self.gcx.compute(|| {
             let crate_name = *self.crate_name()?.borrow();
-            let (krate, lint_store) = self.register_plugins()?.steal();
+            let (krate, pre_configured_attrs, lint_store) = self.register_plugins()?.steal();
 
             let sess = self.session();
 
@@ -215,7 +236,7 @@ impl<'tcx> Queries<'tcx> {
                 feed.crate_name(crate_name);
 
                 let feed = tcx.feed_unit_query();
-                feed.crate_for_resolver(tcx.arena.alloc(Steal::new(krate)));
+                feed.crate_for_resolver(tcx.arena.alloc(Steal::new((krate, pre_configured_attrs))));
                 feed.metadata_loader(
                     tcx.arena.alloc(Steal::new(self.codegen_backend().metadata_loader())),
                 );