Fix fallout in librustdoc.

Author: jseyfried

src/librustdoc/core.rs

@@ -14,7 +14,7 @@ use rustc_driver::{driver, target_features, abort_on_err};
 use rustc::dep_graph::DepGraph;
 use rustc::session::{self, config};
 use rustc::hir::def_id::DefId;
-use rustc::hir::def::Def;
+use rustc::hir::def::{Def, ExportMap};
 use rustc::middle::privacy::AccessLevels;
 use rustc::ty::{self, TyCtxt};
 use rustc::hir::map as hir_map;
@@ -74,6 +74,7 @@ pub struct DocContext<'a, 'tcx: 'a> {
     pub ty_substs: RefCell<FxHashMap<Def, clean::Type>>,
     /// Table node id of lifetime parameter definition -> substituted lifetime
     pub lt_substs: RefCell<FxHashMap<ast::NodeId, clean::Lifetime>>,
+    pub export_map: ExportMap,
 }
 
 impl<'b, 'tcx> DocContext<'b, 'tcx> {
@@ -196,7 +197,7 @@ pub fn run_core(search_paths: SearchPaths,
             sess.fatal("Compilation failed, aborting rustdoc");
         }
 
-        let ty::CrateAnalysis { access_levels, .. } = analysis;
+        let ty::CrateAnalysis { access_levels, export_map, .. } = analysis;
 
         // Convert from a NodeId set to a DefId set since we don't always have easy access
         // to the map from defid -> nodeid
@@ -218,6 +219,7 @@ pub fn run_core(search_paths: SearchPaths,
             renderinfo: Default::default(),
             ty_substs: Default::default(),
             lt_substs: Default::default(),
+            export_map: export_map,
         };
         debug!("crate: {:?}", ctxt.map.krate());
 

src/librustdoc/test.rs

@@ -87,7 +87,7 @@ pub fn run(input: &str,
         config::build_configuration(&sess, config::parse_cfgspecs(cfgs.clone()));
 
     let krate = panictry!(driver::phase_1_parse_input(&sess, &input));
-    let driver::ExpansionResult { defs, mut hir_forest, .. } = {
+    let driver::ExpansionResult { defs, mut hir_forest, analysis, .. } = {
         phase_2_configure_and_expand(
             &sess, &cstore, krate, None, "rustdoc-test", None, MakeGlobMap::No, |_| Ok(())
         ).expect("phase_2_configure_and_expand aborted in rustdoc!")
@@ -110,6 +110,7 @@ pub fn run(input: &str,
         renderinfo: Default::default(),
         ty_substs: Default::default(),
         lt_substs: Default::default(),
+        export_map: analysis.export_map,
     };
 
     let mut v = RustdocVisitor::new(&ctx);

src/librustdoc/visit_ast.rs

@@ -85,8 +85,9 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
                                               &krate.module,
                                               None);
         // attach the crate's exported macros to the top-level module:
-        self.module.macros = krate.exported_macros.iter()
-            .map(|def| self.visit_macro(def)).collect();
+        let macro_exports: Vec<_> =
+            krate.exported_macros.iter().map(|def| self.visit_macro(def)).collect();
+        self.module.macros.extend(macro_exports);
         self.module.is_crate = true;
     }
 
@@ -191,6 +192,28 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
             let item = self.cx.map.expect_item(i.id);
             self.visit_item(item, None, &mut om);
         }
+        if let Some(exports) = self.cx.export_map.get(&id) {
+            for export in exports {
+                if let Def::Macro(def_id) = export.def {
+                    if def_id.krate == LOCAL_CRATE {
+                        continue // These are `krate.exported_macros`, handled in `self.visit()`.
+                    }
+                    let def = self.cx.sess().cstore.load_macro(def_id, self.cx.sess());
+                    // FIXME(jseyfried) merge with `self.visit_macro()`
+                    let matchers = def.body.chunks(4).map(|arm| arm[0].get_span()).collect();
+                    om.macros.push(Macro {
+                        id: def.id,
+                        attrs: def.attrs.clone().into(),
+                        name: def.ident.name,
+                        whence: def.span,
+                        matchers: matchers,
+                        stab: self.stability(def.id),
+                        depr: self.deprecation(def.id),
+                        imported_from: def.imported_from.map(|ident| ident.name),
+                    })
+                }
+            }
+        }
         om
     }