From 021b3719dd526f8c08317c6e746bc010daf15f93 Mon Sep 17 00:00:00 2001
From: Rob Pike <r@golang.org>
Date: Fri, 26 Mar 2010 16:18:20 -0700
Subject: regexp: don't return non-nil *Regexp if there is an error.

R=gri
CC=golang-dev
http://codereview.appspot.com/787041
---
 src/pkg/regexp/regexp.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/pkg/regexp/regexp.go')

diff --git a/src/pkg/regexp/regexp.go b/src/pkg/regexp/regexp.go
index bf9a4bb40..43005fba4 100644
--- a/src/pkg/regexp/regexp.go
+++ b/src/pkg/regexp/regexp.go
@@ -664,6 +664,9 @@ func Compile(str string) (regexp *Regexp, error os.Error) {
 	regexp.expr = str
 	regexp.inst = new(vector.Vector)
 	error = regexp.doParse()
+	if error != nil {
+		regexp = nil
+	}
 	return
 }
 
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