Improve WordDB performance by precomputing hashes

Avoid multiple computation of string hashes by making it possible
to pre-compute and pass hashes to interned strings and hash maps.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/shared_string.hh b/src/shared_string.hh
index 8455a31e..17bb72d8 100644
--- a/src/shared_string.hh
+++ b/src/shared_string.hh
@@ -50,6 +50,7 @@ public:
     public:
         void debug_stats() const;
         Ptr intern(StringView str);
+        Ptr intern(StringView str, size_t hash);
         void remove(StringView str);
 
     private:
@@ -62,10 +63,8 @@ public:
 using StringDataPtr = StringData::Ptr;
 using StringRegistry = StringData::Registry;
 
-inline StringDataPtr intern(StringView str)
-{
-    return StringRegistry::instance().intern(str);
-}
+inline StringDataPtr intern(StringView str) { return StringRegistry::instance().intern(str); }
+inline StringDataPtr intern(StringView str, size_t hash) { return StringRegistry::instance().intern(str, hash); }
 
 }