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diff chapter9/MyAssertion.scala @ 0:b316eec6fa7a draft default tip

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author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 08 Jan 2013 16:41:46 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chapter9/MyAssertion.scala	Tue Jan 08 16:41:46 2013 +0900
@@ -0,0 +1,9 @@
+var assertionsEnabled = true
+def myAssert(predicate: () => Boolean) =
+    if (assertionsEnabled && !predicate())
+	throw new AssertionError
+
+def byNameAssert(predicate: => Boolean) =
+    if (assertionsEnabled && !predicate)
+	throw new AssertionError
+