Add Sync bounds to the crate store

src/librustc/middle/cstore.rs

@@ -38,7 +38,7 @@ use syntax::ext::base::SyntaxExtension;
 use syntax::symbol::Symbol;
 use syntax_pos::Span;
 use rustc_target::spec::Target;
-use rustc_data_structures::sync::{MetadataRef, Lrc};
+use rustc_data_structures::sync::{self, MetadataRef, Lrc};
 
 pub use self::NativeLibraryKind::*;
 
@@ -255,6 +255,8 @@ pub trait CrateStore {
     fn metadata_encoding_version(&self) -> &[u8];
 }
 
+pub type CrateStoreDyn = CrateStore + sync::Sync;
+
 // FIXME: find a better place for this?
 pub fn validate_crate_name(sess: Option<&Session>, s: &str, sp: Option<Span>) {
     let mut err_count = 0;

src/librustc/ty/context.rs

@@ -26,7 +26,7 @@ use lint::{self, Lint};
 use ich::{StableHashingContext, NodeIdHashingMode};
 use infer::canonical::{CanonicalVarInfo, CanonicalVarInfos};
 use infer::outlives::free_region_map::FreeRegionMap;
-use middle::cstore::{CrateStore, LinkMeta};
+use middle::cstore::{CrateStoreDyn, LinkMeta};
 use middle::cstore::EncodedMetadata;
 use middle::lang_items;
 use middle::resolve_lifetime::{self, ObjectLifetimeDefault};
@@ -852,7 +852,7 @@ pub struct GlobalCtxt<'tcx> {
     global_arenas: &'tcx GlobalArenas<'tcx>,
     global_interners: CtxtInterners<'tcx>,
 
-    cstore: &'tcx dyn CrateStore,
+    cstore: &'tcx CrateStoreDyn,
 
     pub sess: &'tcx Session,
 
@@ -1188,7 +1188,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
     /// value (types, substs, etc.) can only be used while `ty::tls` has a valid
     /// reference to the context, to allow formatting values that need it.
     pub fn create_and_enter<F, R>(s: &'tcx Session,
-                                  cstore: &'tcx dyn CrateStore,
+                                  cstore: &'tcx CrateStoreDyn,
                                   local_providers: ty::maps::Providers<'tcx>,
                                   extern_providers: ty::maps::Providers<'tcx>,
                                   arenas: &'tcx AllArenas<'tcx>,

src/librustc_driver/driver.rs

@@ -20,7 +20,7 @@ use rustc::session::config::{self, Input, OutputFilenames, OutputType};
 use rustc::session::search_paths::PathKind;
 use rustc::lint;
 use rustc::middle::{self, reachable, resolve_lifetime, stability};
-use rustc::middle::cstore::CrateStore;
+use rustc::middle::cstore::CrateStoreDyn;
 use rustc::middle::privacy::AccessLevels;
 use rustc::ty::{self, AllArenas, Resolutions, TyCtxt};
 use rustc::traits;
@@ -1047,7 +1047,7 @@ pub fn phase_3_run_analysis_passes<'tcx, F, R>(
     trans: &TransCrate,
     control: &CompileController,
     sess: &'tcx Session,
-    cstore: &'tcx CrateStore,
+    cstore: &'tcx CrateStoreDyn,
     hir_map: hir_map::Map<'tcx>,
     mut analysis: ty::CrateAnalysis,
     resolutions: Resolutions,

src/librustc_driver/lib.rs

@@ -27,6 +27,8 @@
 #![feature(rustc_stack_internals)]
 #![feature(no_debug)]
 
+#![recursion_limit="256"]
+
 extern crate arena;
 extern crate getopts;
 extern crate graphviz;

src/librustc_driver/pretty.rs

@@ -20,7 +20,7 @@ use {abort_on_err, driver};
 use rustc::ty::{self, TyCtxt, Resolutions, AllArenas};
 use rustc::cfg;
 use rustc::cfg::graphviz::LabelledCFG;
-use rustc::middle::cstore::CrateStore;
+use rustc::middle::cstore::CrateStoreDyn;
 use rustc::session::Session;
 use rustc::session::config::{Input, OutputFilenames};
 use rustc_borrowck as borrowck;
@@ -199,7 +199,7 @@ impl PpSourceMode {
     }
     fn call_with_pp_support_hir<'tcx, A, F>(&self,
                                                sess: &'tcx Session,
-                                               cstore: &'tcx CrateStore,
+                                               cstore: &'tcx CrateStoreDyn,
                                                hir_map: &hir_map::Map<'tcx>,
                                                analysis: &ty::CrateAnalysis,
                                                resolutions: &Resolutions,
@@ -912,7 +912,7 @@ pub fn print_after_parsing(sess: &Session,
 }
 
 pub fn print_after_hir_lowering<'tcx, 'a: 'tcx>(sess: &'a Session,
-                                                cstore: &'tcx CrateStore,
+                                                cstore: &'tcx CrateStoreDyn,
                                                 hir_map: &hir_map::Map<'tcx>,
                                                 analysis: &ty::CrateAnalysis,
                                                 resolutions: &Resolutions,
@@ -1068,7 +1068,7 @@ pub fn print_after_hir_lowering<'tcx, 'a: 'tcx>(sess: &'a Session,
 // with a different callback than the standard driver, so that isn't easy.
 // Instead, we call that function ourselves.
 fn print_with_analysis<'tcx, 'a: 'tcx>(sess: &'a Session,
-                                       cstore: &'a CrateStore,
+                                       cstore: &'a CrateStoreDyn,
                                        hir_map: &hir_map::Map<'tcx>,
                                        analysis: &ty::CrateAnalysis,
                                        resolutions: &Resolutions,