Make CrateStore::crate_name() return an InternedString to avoid unnecessary allocations.

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

diff --git a/src/librustc/middle/cstore.rs b/src/librustc/middle/cstore.rs
index 08b87e83a6c4bf1f1466f1cb3a61ab331cacbb25..b89fd92e3c59a67ab550ba9b538460174ae5eed2 100644 (file)
--- a/src/librustc/middle/cstore.rs
+++ b/src/librustc/middle/cstore.rs
@@ -42,6 +42,7 @@
 use syntax::attr;
 use syntax::codemap::Span;
 use syntax::ptr::P;
+use syntax::parse::token::InternedString;
 use rustc_back::target::Target;
 use rustc_front::hir;
 use rustc_front::intravisit::Visitor;
@@ -203,7 +204,7 @@ fn dylib_dependency_formats(&self, cnum: ast::CrateNum)
     fn is_explicitly_linked(&self, cnum: ast::CrateNum) -> bool;
     fn is_allocator(&self, cnum: ast::CrateNum) -> bool;
     fn crate_attrs(&self, cnum: ast::CrateNum) -> Vec<ast::Attribute>;
-    fn crate_name(&self, cnum: ast::CrateNum) -> String;
+    fn crate_name(&self, cnum: ast::CrateNum) -> InternedString;
     fn crate_hash(&self, cnum: ast::CrateNum) -> Svh;
     fn crate_struct_field_attrs(&self, cnum: ast::CrateNum)
                                 -> FnvHashMap<DefId, Vec<ast::Attribute>>;
@@ -382,7 +383,7 @@ fn is_explicitly_linked(&self, cnum: ast::CrateNum) -> bool { unimplemented!() }
     fn is_allocator(&self, cnum: ast::CrateNum) -> bool { unimplemented!() }
     fn crate_attrs(&self, cnum: ast::CrateNum) -> Vec<ast::Attribute>
         { unimplemented!() }
-    fn crate_name(&self, cnum: ast::CrateNum) -> String { unimplemented!() }
+    fn crate_name(&self, cnum: ast::CrateNum) -> InternedString { unimplemented!() }
     fn crate_hash(&self, cnum: ast::CrateNum) -> Svh { unimplemented!() }
     fn crate_struct_field_attrs(&self, cnum: ast::CrateNum)
                                 -> FnvHashMap<DefId, Vec<ast::Attribute>>