rustdoc: Don't try to inline the crate root

Fixes other test cases found in #16274

Author: alexcrichton

src/librustdoc/visit_ast.rs

@@ -46,12 +46,15 @@ pub struct RustdocVisitor<'a, 'tcx: 'a> {
 impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
     pub fn new(cx: &'a core::DocContext<'tcx>,
                analysis: Option<&'a core::CrateAnalysis>) -> RustdocVisitor<'a, 'tcx> {
+        // If the root is reexported, terminate all recursion.
+        let mut stack = HashSet::new();
+        stack.insert(ast::CRATE_NODE_ID);
         RustdocVisitor {
             module: Module::new(None),
             attrs: Vec::new(),
             cx: cx,
             analysis: analysis,
-            view_item_stack: HashSet::new(),
+            view_item_stack: stack,
         }
     }
 
@@ -232,7 +235,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
         if !please_inline && analysis.public_items.contains(&def.node) {
             return false
         }
-        if !self.view_item_stack.insert(id) { return false }
+        if !self.view_item_stack.insert(def.node) { return false }
 
         let ret = match tcx.map.get(def.node) {
             ast_map::NodeItem(it) => {

src/test/run-make/rustdoc-recursion/Makefile

@@ -4,6 +4,8 @@
 ifndef IS_WINDOWS
 all:
 	$(HOST_RPATH_ENV) $(RUSTDOC) -w html -o $(TMPDIR)/doc foo.rs
+	$(HOST_RPATH_ENV) $(RUSTDOC) -w html -o $(TMPDIR)/doc foo2.rs
+	$(HOST_RPATH_ENV) $(RUSTDOC) -w html -o $(TMPDIR)/doc foo3.rs
 else
 all:
 endif

src/test/run-make/rustdoc-recursion/foo.rs

@@ -1,4 +1,4 @@
-// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
 //

src/test/run-make/rustdoc-recursion/foo2.rs

@@ -0,0 +1,24 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+#![feature(globs)]
+
+mod m {
+    pub use self::a::Foo;
+
+    mod a {
+        pub struct Foo;
+    }
+
+    mod b {
+        pub use super::*;
+    }
+}

src/test/run-make/rustdoc-recursion/foo3.rs

@@ -0,0 +1,25 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(globs)]
+
+pub mod longhands {
+    pub use super::*;
+
+    pub use super::common_types::computed::compute_CSSColor as to_computed_value;
+
+    pub fn computed_as_specified() {}
+}
+
+pub mod common_types {
+    pub mod computed {
+        pub use super::super::longhands::computed_as_specified as compute_CSSColor;
+    }
+}