Teach users of OnDiskHashTable to define hash_value and offset types

This paves the way to making OnDiskHashTable work with hashes that are
not 32 bits wide and to making OnDiskHashTable work very large hash
tables. The LLVM change to use these types is upcoming.

llvm-svn: 206640

1 files changed, 8 insertions, 2 deletions

diff --git a/clang/lib/Frontend/CacheTokens.cpp b/clang/lib/Frontend/CacheTokens.cpp
index 0d4d1c4..bf1c968 100644
--- a/clang/lib/Frontend/CacheTokens.cpp
+++ b/clang/lib/Frontend/CacheTokens.cpp
@@ -117,7 +117,10 @@ public:
   typedef PTHEntry data_type;
   typedef const PTHEntry& data_type_ref;
 
-  static unsigned ComputeHash(PTHEntryKeyVariant V) {
+  typedef unsigned hash_value_type;
+  typedef unsigned offset_type;
+
+  static hash_value_type ComputeHash(PTHEntryKeyVariant V) {
     return llvm::HashString(V.getString());
   }
 
@@ -599,7 +602,10 @@ public:
   typedef uint32_t  data_type;
   typedef data_type data_type_ref;
 
-  static unsigned ComputeHash(PTHIdKey* key) {
+  typedef unsigned hash_value_type;
+  typedef unsigned offset_type;
+
+  static hash_value_type ComputeHash(PTHIdKey* key) {
     return llvm::HashString(key->II->getName());
   }