Auto merge of rust-lang#41294 - frewsxcv:rollup, r=frewsxcv

Rollup of 4 pull requests

- Successful merges: rust-lang#41279, rust-lang#41281, rust-lang#41287, rust-lang#41292
- Failed merges:

Author: bors

src/doc/book

@@ -103,12 +103,14 @@ impl Gamma {
         assert!(shape > 0.0, "Gamma::new called with shape <= 0");
         assert!(scale > 0.0, "Gamma::new called with scale <= 0");
 
-        let repr = match shape {
-            1.0 => One(Exp::new(1.0 / scale)),
-            0.0...1.0 => Small(GammaSmallShape::new_raw(shape, scale)),
-            _ => Large(GammaLargeShape::new_raw(shape, scale)),
+        let repr = if shape == 1.0 {
+            One(Exp::new(1.0 / scale))
+        } else if 0.0 <= shape && shape < 1.0 {
+            Small(GammaSmallShape::new_raw(shape, scale))
+        } else {
+            Large(GammaLargeShape::new_raw(shape, scale))
         };
-        Gamma { repr: repr }
+        Gamma { repr }
     }
 }
 

src/doc/reference

@@ -53,7 +53,6 @@ pub use self::NativeLibraryKind::*;
 
 #[derive(Clone, Debug)]
 pub struct LinkMeta {
-    pub crate_name: Symbol,
     pub crate_hash: Svh,
 }
 

src/librand/distributions/gamma.rs

@@ -13,7 +13,6 @@ pub use self::code_stats::{SizeKind, TypeSizeInfo, VariantInfo};
 
 use dep_graph::DepGraph;
 use hir::def_id::{CrateNum, DefIndex};
-use hir::svh::Svh;
 use lint;
 use middle::cstore::CrateStore;
 use middle::dependency_format;
@@ -402,15 +401,14 @@ impl Session {
 
     /// Returns the symbol name for the registrar function,
     /// given the crate Svh and the function DefIndex.
-    pub fn generate_plugin_registrar_symbol(&self, svh: &Svh, index: DefIndex)
+    pub fn generate_plugin_registrar_symbol(&self, disambiguator: Symbol, index: DefIndex)
                                             -> String {
-        format!("__rustc_plugin_registrar__{}_{}", svh, index.as_usize())
+        format!("__rustc_plugin_registrar__{}_{}", disambiguator, index.as_usize())
     }
 
-    pub fn generate_derive_registrar_symbol(&self,
-                                            svh: &Svh,
-                                            index: DefIndex) -> String {
-        format!("__rustc_derive_registrar__{}_{}", svh, index.as_usize())
+    pub fn generate_derive_registrar_symbol(&self, disambiguator: Symbol, index: DefIndex)
+                                            -> String {
+        format!("__rustc_derive_registrar__{}_{}", disambiguator, index.as_usize())
     }
 
     pub fn sysroot<'a>(&'a self) -> &'a Path {

src/librustc/middle/cstore.rs

@@ -33,7 +33,7 @@ pub enum Adjust<'tcx> {
     /// Go from a safe fn pointer to an unsafe fn pointer.
     UnsafeFnPointer,
 
-    // Go from a non-capturing closure to an fn pointer.
+    /// Go from a non-capturing closure to an fn pointer.
     ClosureFnPointer,
 
     /// Go from a mut raw pointer to a const raw pointer.

src/librustc/session/mod.rs

@@ -1140,7 +1140,7 @@ pub fn phase_6_link_output(sess: &Session,
                            outputs: &OutputFilenames) {
     time(sess.time_passes(),
          "linking",
-         || link::link_binary(sess, trans, outputs, &trans.link.crate_name.as_str()));
+         || link::link_binary(sess, trans, outputs, &trans.crate_name.as_str()));
 }
 
 fn escape_dep_filename(filename: &str) -> String {

src/librustc/ty/adjustment.rs

@@ -600,7 +600,7 @@ impl<'a> CrateLoader<'a> {
             Err(err) => self.sess.span_fatal(span, &err),
         };
 
-        let sym = self.sess.generate_derive_registrar_symbol(&root.hash,
+        let sym = self.sess.generate_derive_registrar_symbol(root.disambiguator,
                                                              root.macro_derive_registrar.unwrap());
         let registrar = unsafe {
             let sym = match lib.symbol(&sym) {
@@ -654,7 +654,7 @@ impl<'a> CrateLoader<'a> {
     /// Look for a plugin registrar. Returns library path, crate
     /// SVH and DefIndex of the registrar function.
     pub fn find_plugin_registrar(&mut self, span: Span, name: &str)
-                                 -> Option<(PathBuf, Svh, DefIndex)> {
+                                 -> Option<(PathBuf, Symbol, DefIndex)> {
         let ekrate = self.read_extension_crate(span, &ExternCrateInfo {
              name: Symbol::intern(name),
              ident: Symbol::intern(name),
@@ -675,7 +675,7 @@ impl<'a> CrateLoader<'a> {
         let root = ekrate.metadata.get_root();
         match (ekrate.dylib.as_ref(), root.plugin_registrar_fn) {
             (Some(dylib), Some(reg)) => {
-                Some((dylib.to_path_buf(), root.hash, reg))
+                Some((dylib.to_path_buf(), root.disambiguator, reg))
             }
             (None, Some(_)) => {
                 span_err!(self.sess, span, E0457,

src/librustc_driver/driver.rs

@@ -14,7 +14,7 @@ use schema::*;
 
 use rustc::middle::cstore::{LinkMeta, LinkagePreference, NativeLibrary,
                             EncodedMetadata, EncodedMetadataHash};
-use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefIndex, DefId};
+use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefIndex, DefId, LOCAL_CRATE};
 use rustc::hir::map::definitions::DefPathTable;
 use rustc::middle::dependency_format::Linkage;
 use rustc::middle::lang_items;
@@ -1380,7 +1380,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
         let link_meta = self.link_meta;
         let is_proc_macro = tcx.sess.crate_types.borrow().contains(&CrateTypeProcMacro);
         let root = self.lazy(&CrateRoot {
-            name: link_meta.crate_name,
+            name: tcx.crate_name(LOCAL_CRATE),
             triple: tcx.sess.opts.target_triple.clone(),
             hash: link_meta.crate_hash,
             disambiguator: tcx.sess.local_crate_disambiguator(),

src/librustc_metadata/creader.rs

@@ -100,8 +100,8 @@ impl<'a> PluginLoader<'a> {
     fn load_plugin(&mut self, span: Span, name: &str, args: Vec<ast::NestedMetaItem>) {
         let registrar = self.reader.find_plugin_registrar(span, name);
 
-        if let Some((lib, svh, index)) = registrar {
-            let symbol = self.sess.generate_plugin_registrar_symbol(&svh, index);
+        if let Some((lib, disambiguator, index)) = registrar {
+            let symbol = self.sess.generate_plugin_registrar_symbol(disambiguator, index);
             let fun = self.dylink_registrar(span, lib, symbol);
             self.plugins.push(PluginRegistrar {
                 fun: fun,