On Feb 18, 2009, at 12:05 PM, Perry Trolard wrote:
On the most recent svn (r1293), read-line throws a ClassCastException when called: user=> (read-line) java.lang.ClassCastException: clojure.lang.LineNumberingPushbackReader cannot be cast to java.io.BufferedReader (NO_SOURCE_FILE:0) Removing the type hint solves the issue: user=> (source read-line) (defn read-line "Reads the next line from stream that is the current value of *in* ." [] (. #^java.io.BufferedReader *in* (readLine))) nil user=> (.readLine *in*) this is a line "this is a line"
This is from issue 47, svn 1229. It's unfortunate that a class can't be both a BufferedReader and a PushbackReader simultaneously. Those classes were implemented using class inheritance rather than via interfaces. In this case, the default *in* is not a BufferedReader, but does provide readLine. It looks to me like removing the hint is the correct fix.
--Steve
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