rustc: Break metadata's dependency on link

src/rustc/back/link.rs

@@ -286,10 +286,8 @@ mod write {
  *
  */
 
-type link_meta = {name: str, vers: str, extras_hash: str};
-
 fn build_link_meta(sess: session, c: ast::crate, output: str,
-                   sha: sha1) -> link_meta {
+                   sha: sha1) -> encoder::link_meta {
 
     type provided_metas =
         {name: option<str>,
@@ -412,8 +410,8 @@ fn truncated_sha1_result(sha: sha1) -> str unsafe {
 
 
 // This calculates STH for a symbol, as defined above
-fn symbol_hash(tcx: ty::ctxt, sha: sha1, t: ty::t, link_meta: link_meta) ->
-   str {
+fn symbol_hash(tcx: ty::ctxt, sha: sha1, t: ty::t,
+               link_meta: encoder::link_meta) -> str {
     // NB: do *not* use abbrevs here as we want the symbol names
     // to be independent of one another in the crate.
 
@@ -526,7 +524,7 @@ fn mangle_internal_name_by_seq(ccx: @crate_ctxt, flav: str) -> str {
 fn link_binary(sess: session,
                obj_filename: str,
                out_filename: str,
-               lm: link_meta) {
+               lm: encoder::link_meta) {
     // Converts a library file name into a cc -l argument
     fn unlib(config: @session::config, filename: str) -> str unsafe {
         let rmlib = fn@(filename: str) -> str {

src/rustc/metadata.rs

@@ -15,8 +15,6 @@ mod front {
 }
 
 mod back {
-    import link = back_::link;
-    export link;
 }
 
 mod driver {

src/rustc/metadata/encoder.rs

@@ -21,6 +21,7 @@ import middle::resolve;
 import syntax::ast;
 import driver::session::session;
 
+export link_meta;
 export encode_parms;
 export encode_metadata;
 export encoded_ty;
@@ -33,6 +34,9 @@ export encode_ctxt;
 export write_type;
 export encode_def_id;
 
+// FIXME: This probably belongs somewhere else
+type link_meta = {name: str, vers: str, extras_hash: str};
+
 type abbrev_map = map::hashmap<ty::t, tyencode::ty_abbrev>;
 
 type encode_inlined_item = fn@(ecx: @encode_ctxt,
@@ -47,7 +51,7 @@ type encode_parms = {
     impl_map: resolve::impl_map,
     item_symbols: hashmap<ast::node_id, str>,
     discrim_symbols: hashmap<ast::node_id, str>,
-    link_meta: back::link::link_meta,
+    link_meta: link_meta,
     cstore: cstore::cstore,
     encode_inlined_item: encode_inlined_item
 };
@@ -59,7 +63,7 @@ enum encode_ctxt = {
     impl_map: resolve::impl_map,
     item_symbols: hashmap<ast::node_id, str>,
     discrim_symbols: hashmap<ast::node_id, str>,
-    link_meta: back::link::link_meta,
+    link_meta: link_meta,
     cstore: cstore::cstore,
     encode_inlined_item: encode_inlined_item,
     type_abbrevs: abbrev_map

src/rustc/middle/trans/base.rs

@@ -4950,7 +4950,7 @@ fn create_module_map(ccx: @crate_ctxt) -> ValueRef {
 }
 
 
-fn decl_crate_map(sess: session::session, mapmeta: link::link_meta,
+fn decl_crate_map(sess: session::session, mapmeta: encoder::link_meta,
                   llmod: ModuleRef) -> ValueRef {
     let targ_cfg = sess.targ_cfg;
     let int_type = T_int(targ_cfg);
@@ -5043,7 +5043,7 @@ fn write_abi_version(ccx: @crate_ctxt) {
 fn trans_crate(sess: session::session, crate: @ast::crate, tcx: ty::ctxt,
                output: str, emap: resolve::exp_map,
                maps: astencode::maps)
-    -> (ModuleRef, link::link_meta) {
+    -> (ModuleRef, encoder::link_meta) {
     let sha = std::sha1::sha1();
     let link_meta = link::build_link_meta(sess, *crate, output, sha);
     let reachable = reachable::find_reachable(crate.node.module, emap, tcx,

src/rustc/middle/trans/common.rs

@@ -77,7 +77,7 @@ type crate_ctxt = {
      reachable: reachable::map,
      item_symbols: hashmap<ast::node_id, str>,
      mut main_fn: option<ValueRef>,
-     link_meta: link::link_meta,
+     link_meta: encoder::link_meta,
      enum_sizes: hashmap<ty::t, uint>,
      discrims: hashmap<ast::def_id, ValueRef>,
      discrim_symbols: hashmap<ast::node_id, str>,