From 0efa4167cc4a8f7f294bf7eaba5a2d88df4b09b7 Mon Sep 17 00:00:00 2001
From: Chris Wendt <chrismwendt@gmail.com>
Date: Wed, 8 Jun 2022 03:25:55 -0600
Subject: generic versionedValue[T]

---
 var-value.go | 16 ++++++++--------
 var.go       |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/var-value.go b/var-value.go
index 966399a..f4921f3 100644
--- a/var-value.go
+++ b/var-value.go
@@ -8,24 +8,24 @@ type VarValue interface {
 
 type version uint64
 
-type versionedValue struct {
-	value   interface{}
+type versionedValue[T any] struct {
+	value   T
 	version version
 }
 
-func (me versionedValue) Set(newValue interface{}) VarValue {
-	return versionedValue{
-		value:   newValue,
+func (me versionedValue[T]) Set(newValue interface{}) VarValue {
+	return versionedValue[T]{
+		value:   newValue.(T),
 		version: me.version + 1,
 	}
 }
 
-func (me versionedValue) Get() interface{} {
+func (me versionedValue[T]) Get() interface{} {
 	return me.value
 }
 
-func (me versionedValue) Changed(other VarValue) bool {
-	return me.version != other.(versionedValue).version
+func (me versionedValue[T]) Changed(other VarValue) bool {
+	return me.version != other.(versionedValue[T]).version
 }
 
 type customVarValue[T any] struct {
diff --git a/var.go b/var.go
index eabf422..2354d96 100644
--- a/var.go
+++ b/var.go
@@ -54,7 +54,7 @@ func (v *Var[T]) wakeWatchers(new VarValue) {
 // Returns a new STM variable.
 func NewVar[T any](val T) *Var[T] {
 	v := &Var[T]{}
-	v.value.Store(versionedValue{
+	v.value.Store(versionedValue[T]{
 		value: val,
 	})
 	return v
-- 
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