From 6e20fc39299aeeb0af58691edd4c2a2a36b2e69e Mon Sep 17 00:00:00 2001
From: Alexander Nozik <altavir@gmail.com>
Date: Thu, 28 Dec 2023 22:14:15 +0300
Subject: [PATCH] fix valueSequence

---
 CHANGELOG.md                                                  | 1 +
 build.gradle.kts                                              | 2 +-
 .../commonMain/kotlin/space/kscience/dataforge/meta/Meta.kt   | 4 +++-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7cc1c21d..8e2861e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@
 
 ### Fixed
 - Partially fixed a bug with `MutableMeta` observable wrappers.
+- `valueSequence` now include root value. So `meta.update` works properly.
 
 ### Security
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 1fa05824..33be577c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ plugins {
 
 allprojects {
     group = "space.kscience"
-    version = "0.7.2-dev-1"
+    version = "0.7.2-dev-2"
 }
 
 subprojects {
diff --git a/dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Meta.kt b/dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Meta.kt
index 979c8782..5cf53c75 100644
--- a/dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Meta.kt
+++ b/dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Meta.kt
@@ -188,10 +188,12 @@ public operator fun <M : TypedMeta<M>> M?.get(key: String): M? = this?.get(key.p
 
 
 /**
- * Get a sequence of [Name]-[Value] pairs using top-down traversal of the tree
+ * Get a sequence of [Name]-[Value] pairs using top-down traversal of the tree.
+ * The sequence includes root value with empty name
  */
 public fun Meta.valueSequence(): Sequence<Pair<Name, Value>> = sequence {
     items.forEach { (key, item) ->
+        value?.let { yield(Name.EMPTY to it) }
         item.value?.let { itemValue ->
             yield(key.asName() to itemValue)
         }