[#MATCH-56] IndexOutOfBoundsException when matching empty vector

[MATCH-56] IndexOutOfBoundsException when matching empty vector Created: 27/Mar/12 Updated: 27/Mar/12
Status:	Open
Project:	core.match
Component/s:	None
Affects Version/s:	None
Fix Version/s:	None

Type:

Defect

Priority:

Major

Reporter:

Greg Chapman

Assignee:

David Nolen

Resolution:

Unresolved

Votes:

Labels:

None

Environment:

Clojure 1.3

Attachments:

match.clj.diff

Description

Using the latest core.match:

user=> (let [x []] (match [x] [[h & t]] [h t] :else :nomatch))
IndexOutOfBoundsException clojure.lang.RT.subvec (RT.java:1451)

Not sure if this is the best fix, but I resolved this specific case by slightly changing subvec-inline (see attached diff).

Comments

Comment by David Nolen [ 27/Mar/12 10:28 AM ]

Thanks for the report. The patch is not going to work - we should be checking that the vector has at least one item.

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