From 730b613007620b69bb4e918b82bbb8f97a756f0f Mon Sep 17 00:00:00 2001
From: Mark Harrah <dmharrah@gmail.com>
Date: Sat, 30 Oct 2010 11:55:47 -0400
Subject: [PATCH] make serializable abstract Lazy template

---
 compile/api/SafeLazy.scala                    |  2 +-
 .../src/main/java/xsbti/api/AbstractLazy.java | 26 +++++++++++++++++++
 interface/src/main/java/xsbti/api/Lazy.java   |  2 +-
 3 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 interface/src/main/java/xsbti/api/AbstractLazy.java

diff --git a/compile/api/SafeLazy.scala b/compile/api/SafeLazy.scala
index 99630629f..7ccda7e0e 100644
--- a/compile/api/SafeLazy.scala
+++ b/compile/api/SafeLazy.scala
@@ -13,7 +13,7 @@ object SafeLazy
 
 	def strict[T <: AnyRef](value: T): xsbti.api.Lazy[T] = apply(value)
 
-	private[this] final class Impl[T <: AnyRef](private[this] var eval: () => T) extends xsbti.api.Lazy[T]
+	private[this] final class Impl[T <: AnyRef](private[this] var eval: () => T) extends xsbti.api.AbstractLazy[T]
 	{
 		private[this] lazy val _t =
 		{
diff --git a/interface/src/main/java/xsbti/api/AbstractLazy.java b/interface/src/main/java/xsbti/api/AbstractLazy.java
new file mode 100644
index 000000000..bd21f166f
--- /dev/null
+++ b/interface/src/main/java/xsbti/api/AbstractLazy.java
@@ -0,0 +1,26 @@
+/* sbt -- Simple Build Tool
+ * Copyright 2010  Mark Harrah
+ */
+package xsbti.api;
+
+	import java.io.ObjectStreamException;
+
+public abstract class AbstractLazy<T> implements Lazy<T>, java.io.Serializable
+{
+	private Object writeReplace() throws ObjectStreamException
+	{
+		return new StrictLazy<T>(get());
+	}
+	private static final class StrictLazy<T> implements Lazy<T>, java.io.Serializable
+	{
+		private final T value;
+		StrictLazy(T t)
+		{
+			value = t;
+		}
+		public T get()
+		{
+			return value;
+		}
+	}
+}
\ No newline at end of file
diff --git a/interface/src/main/java/xsbti/api/Lazy.java b/interface/src/main/java/xsbti/api/Lazy.java
index 4a5642a01..1ee29b013 100644
--- a/interface/src/main/java/xsbti/api/Lazy.java
+++ b/interface/src/main/java/xsbti/api/Lazy.java
@@ -1,5 +1,5 @@
 /* sbt -- Simple Build Tool
- * Copyright 2008, 2009  Mark Harrah
+ * Copyright 2010  Mark Harrah
  */
 package xsbti.api;