store the defs in proc macro crate

Author: bvanjoi

compiler/rustc_metadata/src/rmeta/encoder.rs

@@ -25,7 +25,7 @@ use rustc_middle::ty::{AssocItemContainer, SymbolName};
 use rustc_middle::util::common::to_readable_str;
 use rustc_middle::{bug, span_bug};
 use rustc_serialize::{Decodable, Decoder, Encodable, Encoder, opaque};
-use rustc_session::config::{CrateType, OptLevel};
+use rustc_session::config::{CrateType, OptLevel, ResolveDocLinks};
 use rustc_span::hygiene::HygieneEncodeContext;
 use rustc_span::symbol::sym;
 use rustc_span::{
@@ -134,7 +134,13 @@ impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for ExpnIndex {
 
 impl<'a, 'tcx> SpanEncoder for EncodeContext<'a, 'tcx> {
     fn encode_crate_num(&mut self, crate_num: CrateNum) {
-        if crate_num != LOCAL_CRATE && self.is_proc_macro {
+        if crate_num != LOCAL_CRATE
+            && (self.is_proc_macro
+                && !matches!(
+                    self.tcx.sess.opts.resolve_doc_links,
+                    ResolveDocLinks::ExportedMetadata
+                ))
+        {
             panic!("Attempted to encode non-local CrateNum {crate_num:?} for proc-macro crate");
         }
         self.emit_u32(crate_num.as_u32());
@@ -495,7 +501,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
 
     fn encode_def_path_table(&mut self) {
         let table = self.tcx.def_path_table();
-        if self.is_proc_macro {
+        if self.is_proc_macro
+            && !matches!(self.tcx.sess.opts.resolve_doc_links, ResolveDocLinks::ExportedMetadata)
+        {
             for def_index in std::iter::once(CRATE_DEF_INDEX)
                 .chain(self.tcx.resolutions(()).proc_macros.iter().map(|p| p.local_def_index))
             {
@@ -1373,7 +1381,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
 
         // Proc-macro crates only export proc-macro items, which are looked
         // up using `proc_macro_data`
-        if self.is_proc_macro {
+        if self.is_proc_macro
+            && !matches!(self.tcx.sess.opts.resolve_doc_links, ResolveDocLinks::ExportedMetadata)
+        {
             return;
         }
 

tests/rustdoc-ui/intra-doc/auxiliary/in-proc-item-comment.rs

@@ -0,0 +1,14 @@
+//@ force-host
+//@ no-prefer-dynamic
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+mod view {}
+
+/// [`view`]
+#[proc_macro]
+pub fn f(_: TokenStream) -> TokenStream {
+    todo!()
+}

tests/rustdoc-ui/intra-doc/pub-prco-item.rs

@@ -0,0 +1,8 @@
+//@ aux-build:in-proc-item-comment.rs
+//@ check-pass
+
+// issue#132743
+
+extern crate in_proc_item_comment;
+
+pub use in_proc_item_comment::f;