From 2a69147ed4ffdd3b7e3402a185bc6d7faca7d686 Mon Sep 17 00:00:00 2001
From: Dominik Demuth <dominik.demuth@physik.tu-darmstadt.de>
Date: Thu, 28 Sep 2023 15:43:55 +0200
Subject: [PATCH] remove slot reference in parameter.get_state; fixes #125

---
 src/nmreval/fit/parameter.py | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/nmreval/fit/parameter.py b/src/nmreval/fit/parameter.py
index c68b8d0..2aaeb0b 100644
--- a/src/nmreval/fit/parameter.py
+++ b/src/nmreval/fit/parameter.py
@@ -307,11 +307,25 @@ class Parameter:
         self.error = value * self.scale
 
     def get_state(self) -> dict:
-        return {slot: getattr(self, slot) for slot in self.__slots__}
+        state_dict = {
+            'name': self.name,
+            'value': self._value,
+            'error': self.error,
+            'init_val': self.init_val,
+            'var': self.var,
+            'lb': self.lb,
+            'ub': self.ub,
+            'scale': self.scale,
+            'function': self.function,
+            '_expr': self._expr,
+            '_expr_disp': self._expr_disp,
+            'is_global': self.is_global,
+         }
+        return state_dict
 
     @staticmethod
     def set_state(state: dict) -> Parameter:
-        par = Parameter(state.pop('value'))
+        par = Parameter(state.get('name'), state.pop('value'))
         for k, v in state.items():
             setattr(par, k, v)