From 92ae58a35e3d2efbfc8f9cf4ba3767a32aaec29f Mon Sep 17 00:00:00 2001
From: Rich Hickey <richhickey@gmail.com>
Date: Mon, 25 May 2009 23:59:52 +0000
Subject: trap instance method calls to known nil targets at compile time

---
 src/jvm/clojure/lang/Compiler.java | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/jvm/clojure/lang/Compiler.java b/src/jvm/clojure/lang/Compiler.java
index 52c392cb..ecdda8ab 100644
--- a/src/jvm/clojure/lang/Compiler.java
+++ b/src/jvm/clojure/lang/Compiler.java
@@ -1139,6 +1139,8 @@ static class InstanceMethodExpr extends MethodExpr{
 		this.target = target;
 		if(target.hasJavaClass())
 			{
+			if(target.getJavaClass() == null)
+				throw new IllegalArgumentException("Attempt to call instance method '" + methodName + "' on nil");
 			List methods = Reflector.getMethods(target.getJavaClass(), args.count(), methodName, false);
 			if(methods.isEmpty())
 				method = null;
-- 
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