From 7ae1e4f3713fe851c2fd59cdcbab3dd136d02ebb Mon Sep 17 00:00:00 2001
From: porink0424 <daichi2120@gmail.com>
Date: Fri, 5 Apr 2024 11:56:26 +0900
Subject: [PATCH] Replace null -> undefined in trial.values to support type

---
 tslib/storage/src/journal.ts | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/tslib/storage/src/journal.ts b/tslib/storage/src/journal.ts
index 911d2d10..81d48bc4 100644
--- a/tslib/storage/src/journal.ts
+++ b/tslib/storage/src/journal.ts
@@ -289,7 +289,7 @@ class JournalStorage {
       return
     }
     thisTrial.state = trialStateNumToTrialState(log.state)
-    thisTrial.values = log.values
+    thisTrial.values = log.values === null ? undefined : log.values
     thisTrial.datetime_start = log.datetime_start
       ? new Date(log.datetime_start)
       : undefined
@@ -350,21 +350,21 @@ const loadJournalStorage = (arrayBuffer: ArrayBuffer): Optuna.Study[] => {
           escapedLog = escapedLog.replace(/-Infinity/g, '"***-inf***"')
           escapedLog = escapedLog.replace(/Infinity/g, '"***inf***"')
           return JSON.parse(escapedLog, (_key, value) => {
-              switch (value) {
-                case "***nan***":
-                  return NaN
-                case "***-inf***":
-                  return -Infinity
-                case "***inf***":
-                  return Infinity
-                default:
-                  return value
-              }
-            })
+            switch (value) {
+              case "***nan***":
+                return NaN
+              case "***-inf***":
+                return -Infinity
+              case "***inf***":
+                return Infinity
+              default:
+                return value
+            }
+          })
         }
       }
     })()
-    
+
     switch (parsedLog.op_code) {
       case JournalOperation.CREATE_STUDY:
         journalStorage.applyCreateStudy(parsedLog as JournalOpCreateStudy)