improve performance

include/pocketpy/interpreter/typeinfo.h

@@ -40,6 +40,6 @@ py_TypeInfo* TypeList__get(TypeList* self, py_Type index);
 py_TypeInfo* TypeList__emplace(TypeList* self);
 void TypeList__apply(TypeList* self, void (*f)(py_TypeInfo*, void*), void* ctx);
 py_TValue* TypeList__magic(py_TypeInfo* self, unsigned index);
-py_TValue* TypeList__magic_readonly_nullable(py_TypeInfo* self, unsigned index);
+py_TValue* TypeList__magic_readonly(py_TypeInfo* self, unsigned index);
 
 #define TypeList__magic_common(ti, index) ((ti)->magic_0 + ((index)-PK_MAGIC_SLOTS_UNCOMMON_LENGTH))

src/interpreter/typeinfo.c

@@ -60,18 +60,14 @@ py_TValue* TypeList__magic(py_TypeInfo* self, unsigned index) {
     return self->magic_1 + index;
 }
 
-py_TValue* TypeList__magic_readonly_nullable(py_TypeInfo* self, unsigned index) {
+py_TValue* TypeList__magic_readonly(py_TypeInfo* self, unsigned index) {
     if(index > __xor__) {
         // common magic slots
-        py_TValue* slot = TypeList__magic_common(self, index);
-        if(py_isnil(slot)) return NULL;
-        return slot;
+        return TypeList__magic_common(self, index);
     }
     // uncommon magic slots
-    if(self->magic_1 == NULL) return NULL;
-    py_TValue* slot = self->magic_1 + index;
-    if(py_isnil(slot)) return NULL;
-    return slot;
+    if(self->magic_1 == NULL) return py_NIL();
+    return self->magic_1 + index;
 }
 
 #undef CHUNK_SIZE

src/public/internal.c

@@ -227,8 +227,9 @@ py_Ref py_tpfindmagic(py_Type t, py_Name name) {
     assert(py_ismagicname(name));
     py_TypeInfo* ti = pk__type_info(t);
     do {
-        py_Ref f = TypeList__magic_readonly_nullable(ti, name);
-        if(f != NULL) return f;
+        py_Ref f = TypeList__magic_readonly(ti, name);
+        assert(f != NULL);
+        if(!py_isnil(f)) return f;
         ti = ti->base_ti;
     } while(ti);
     return NULL;