rustdoc: Don't treat "super" specially for urls

This was just incorrectly handled before, the path component shouldn't be looked
at at all (we used absolute paths everywhere instead of relative to the current
module location).

Closes #9861

Author: alexcrichton

src/librustdoc/html/format.rs

@@ -115,12 +115,7 @@ impl fmt::Default for clean::Path {
 fn resolved_path(w: &mut io::Writer, id: ast::NodeId, p: &clean::Path,
                  print_all: bool) {
     path(w, p, print_all,
-        |_cache, loc| {
-            match p.segments[0].name.as_slice() {
-                "super" => Some("../".repeat(loc.len() - 1)),
-                _ => Some("../".repeat(loc.len())),
-            }
-        },
+        |_cache, loc| { Some("../".repeat(loc.len())) },
         |cache| {
             match cache.paths.find(&id) {
                 None => None,

src/librustdoc/html/render.rs

@@ -44,6 +44,7 @@ use std::rt::io::file::{FileInfo, DirectoryInfo};
 use std::rt::io::file;
 use std::rt::io;
 use std::rt::io::Reader;
+use std::os;
 use std::str;
 use std::task;
 use std::unstable::finally::Finally;
@@ -686,7 +687,15 @@ impl Context {
             Process(Context, clean::Item),
         }
         enum Progress { JobNew, JobDone }
-        static WORKERS: int = 10;
+
+        let workers = match os::getenv("RUSTDOC_WORKERS") {
+            Some(s) => {
+                match from_str::<uint>(s) {
+                    Some(n) => n, None => fail2!("{} not a number", s)
+                }
+            }
+            None => 10,
+        };
 
         let mut item = match crate.module.take() {
             Some(i) => i,
@@ -706,7 +715,7 @@ impl Context {
         // using the same channel/port. Through this, the crate is recursed on
         // in a hierarchical fashion, and parallelization is only achieved if
         // one node in the hierarchy has more than one child (very common).
-        for i in range(0, WORKERS) {
+        for i in range(0, workers) {
             let port = port.clone();
             let chan = chan.clone();
             let prog_chan = prog_chan.clone();
@@ -761,7 +770,7 @@ impl Context {
             if jobs == 0 { break }
         }
 
-        for _ in range(0, WORKERS) {
+        for _ in range(0, workers) {
             chan.send(Die);
         }
     }