From b8f057951c47ccb07316fcd936dba9b71e052d1f Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Mon, 17 Feb 2025 13:46:17 +0000
Subject: Begin work on `TypeSet`

---
 src/checker.hpp | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'src/checker.hpp')

diff --git a/src/checker.hpp b/src/checker.hpp
index c9a0c3302..725c1ccf5 100644
--- a/src/checker.hpp
+++ b/src/checker.hpp
@@ -409,11 +409,27 @@ struct Defineable {
 	String pos_str;
 };
 
-struct Type_Info_Type {
+struct TypeInfoPair {
 	Type *type;
 	u64   hash; // see: type_hash_canonical_type
 };
 
+struct TypeSet {
+	TypeInfoPair *keys;
+	usize count;
+	usize capacity;
+};
+
+gb_internal void  type_set_init   (TypeSet *s, isize capacity = 16);
+gb_internal void  type_set_destroy(TypeSet *s);
+gb_internal Type *type_set_add    (TypeSet *s, Type *ptr);
+gb_internal bool  type_set_update (TypeSet *s, Type *ptr); // returns true if it previously existed
+gb_internal bool  type_set_update (TypeSet *s, TypeInfoPair pair); // returns true if it previously existed
+gb_internal bool  type_set_exists (TypeSet *s, Type *ptr);
+gb_internal void  type_set_remove (TypeSet *s, Type *ptr);
+gb_internal void  type_set_clear  (TypeSet *s);
+gb_internal TypeInfoPair *type_set_retrieve(TypeSet *s, Type *ptr);
+
 // CheckerInfo stores all the symbol information for a type-checked program
 struct CheckerInfo {
 	Checker *checker;
@@ -458,8 +474,9 @@ struct CheckerInfo {
 	PtrMap<Type *, GenTypesData *> gen_types;
 
 	BlockingMutex type_info_mutex; // NOT recursive
-	Array<Type_Info_Type> type_info_types;
+	Array<TypeInfoPair> type_info_types;
 	PtrMap<Type *, isize> type_info_map;
+	TypeSet type_info_set;
 
 	BlockingMutex foreign_mutex; // NOT recursive
 	StringMap<Entity *> foreigns;
-- 
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