From 5c405241fa0fa7ef72fbcdf9a3eddaecb94e2246 Mon Sep 17 00:00:00 2001
From: ykiko <ykikoykikoykiko@gmail.com>
Date: Sat, 2 Nov 2024 14:04:15 +0800
Subject: [PATCH] Improve index format.

---
 include/Index/Index.h | 14 +++++++-------
 src/Index/Indexer.cpp |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/Index/Index.h b/include/Index/Index.h
index f4f9681c..4dc4c94b 100644
--- a/include/Index/Index.h
+++ b/include/Index/Index.h
@@ -23,6 +23,8 @@ using String = Array<char>;
 
 #undef MAKE_CLANGD_HAPPY
 
+using SymbolID = uint64_t;
+
 struct File {
     String path;
     // TODO: some flags.
@@ -30,19 +32,17 @@ struct File {
     Value<Location> include;
 };
 
-struct SymbolID {
-    uint64_t value;
-    String USR;
-};
-
 struct Relation {
     RelationKind kind;
     Value<Location> location;
-    Value<SymbolID> related;
+    SymbolID related;
 };
 
 struct Symbol {
-    Value<SymbolID> id;
+    /// The hash of this symbol, used for quick lookup.
+    SymbolID id;
+    /// The unique identifier of this symbol.
+    String USR;
     /// The name of this symbol.
     String name;
     /// The document of this symbol.
diff --git a/src/Index/Indexer.cpp b/src/Index/Indexer.cpp
index 2c81f944..dcce2634 100644
--- a/src/Index/Indexer.cpp
+++ b/src/Index/Indexer.cpp
@@ -145,7 +145,7 @@ public:
     static memory::SymbolID generateSymbolID(const clang::Decl* decl) {
         llvm::SmallString<128> USR;
         clang::index::generateUSRForDecl(decl, USR);
-        return memory::SymbolID{llvm::hash_value(USR), USR.str().str()};
+        return llvm::hash_value(USR);
     }
 
     /// Add a symbol to the index.