Rollup merge of #41249 - GuillaumeGomez:rustdoc-render, r=steveklabnik,frewsxcv

[rust.git] / src / librustc / middle / cstore.rs

diff --git a/src/librustc/middle/cstore.rs b/src/librustc/middle/cstore.rs
index 8bc0cf2577b5db05761ebbbf9a4b966875383605..cbbfeacadb4087a2e8912bb415986d57435ec605 100644 (file)
--- a/src/librustc/middle/cstore.rs
+++ b/src/librustc/middle/cstore.rs
@@ -27,6 +27,7 @@
 use hir::map as hir_map;
 use hir::map::definitions::{Definitions, DefKey, DisambiguatedDefPathData};
 use hir::svh::Svh;
+use ich;
 use middle::lang_items;
 use ty::{self, TyCtxt};
 use session::Session;
@@ -52,7 +53,6 @@
 
 #[derive(Clone, Debug)]
 pub struct LinkMeta {
-    pub crate_name: Symbol,
     pub crate_hash: Svh,
 }
 
@@ -161,6 +161,20 @@ pub struct ExternCrate {
     pub path_len: usize,
 }
 
+pub struct EncodedMetadata {
+    pub raw_data: Vec<u8>,
+    pub hashes: Vec<EncodedMetadataHash>,
+}
+
+/// The hash for some metadata that (when saving) will be exported
+/// from this crate, or which (when importing) was exported by an
+/// upstream crate.
+#[derive(Debug, RustcEncodable, RustcDecodable, Copy, Clone)]
+pub struct EncodedMetadataHash {
+    pub def_index: DefIndex,
+    pub hash: ich::Fingerprint,
+}
+
 /// A store of Rust crates, through with their metadata
 /// can be accessed.
 pub trait CrateStore {
@@ -172,7 +186,7 @@ pub trait CrateStore {
     fn stability(&self, def: DefId) -> Option<attr::Stability>;
     fn deprecation(&self, def: DefId) -> Option<attr::Deprecation>;
     fn visibility(&self, def: DefId) -> ty::Visibility;
-    fn visible_parent_map<'a>(&'a self) -> ::std::cell::RefMut<'a, DefIdMap<DefId>>;
+    fn visible_parent_map<'a>(&'a self) -> ::std::cell::Ref<'a, DefIdMap<DefId>>;
     fn item_generics_cloned(&self, def: DefId) -> ty::Generics;
     fn item_attrs(&self, def_id: DefId) -> Vec<ast::Attribute>;
     fn fn_arg_names(&self, did: DefId) -> Vec<ast::Name>;
@@ -230,6 +244,7 @@ fn retrace_path(&self,
                     -> Option<DefId>;
     fn def_key(&self, def: DefId) -> DefKey;
     fn def_path(&self, def: DefId) -> hir_map::DefPath;
+    fn def_path_hash(&self, def: DefId) -> u64;
     fn struct_field_names(&self, def: DefId) -> Vec<ast::Name>;
     fn item_children(&self, did: DefId) -> Vec<def::Export>;
     fn load_macro(&self, did: DefId, sess: &Session) -> LoadedMacro;
@@ -257,7 +272,8 @@ fn maybe_get_item_body<'a, 'tcx>(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>, def: DefId)
     fn encode_metadata<'a, 'tcx>(&self,
                                  tcx: TyCtxt<'a, 'tcx, 'tcx>,
                                  link_meta: &LinkMeta,
-                                 reachable: &NodeSet) -> Vec<u8>;
+                                 reachable: &NodeSet)
+                                 -> EncodedMetadata;
     fn metadata_encoding_version(&self) -> &[u8];
 }
 
@@ -302,7 +318,7 @@ fn def_span(&self, sess: &Session, def: DefId) -> Span { bug!("def_span") }
     fn stability(&self, def: DefId) -> Option<attr::Stability> { bug!("stability") }
     fn deprecation(&self, def: DefId) -> Option<attr::Deprecation> { bug!("deprecation") }
     fn visibility(&self, def: DefId) -> ty::Visibility { bug!("visibility") }
-    fn visible_parent_map<'a>(&'a self) -> ::std::cell::RefMut<'a, DefIdMap<DefId>> {
+    fn visible_parent_map<'a>(&'a self) -> ::std::cell::Ref<'a, DefIdMap<DefId>> {
         bug!("visible_parent_map")
     }
     fn item_generics_cloned(&self, def: DefId) -> ty::Generics
@@ -377,6 +393,9 @@ fn def_key(&self, def: DefId) -> DefKey { bug!("def_key") }
     fn def_path(&self, def: DefId) -> hir_map::DefPath {
         bug!("relative_def_path")
     }
+    fn def_path_hash(&self, def: DefId) -> u64 {
+        bug!("wa")
+    }
     fn struct_field_names(&self, def: DefId) -> Vec<ast::Name> { bug!("struct_field_names") }
     fn item_children(&self, did: DefId) -> Vec<def::Export> { bug!("item_children") }
     fn load_macro(&self, did: DefId, sess: &Session) -> LoadedMacro { bug!("load_macro") }
@@ -413,7 +432,10 @@ fn extern_mod_stmt_cnum(&self, emod_id: ast::NodeId) -> Option<CrateNum> { None
     fn encode_metadata<'a, 'tcx>(&self,
                                  tcx: TyCtxt<'a, 'tcx, 'tcx>,
                                  link_meta: &LinkMeta,
-                                 reachable: &NodeSet) -> Vec<u8> { vec![] }
+                                 reachable: &NodeSet)
+                                 -> EncodedMetadata {
+        bug!("encode_metadata")
+    }
     fn metadata_encoding_version(&self) -> &[u8] { bug!("metadata_encoding_version") }
 }