[Larceny-users] Bug in case-lambda

[David Van Horn]

David Van Horn wrote:
> David Van Horn wrote:
>> I noticed that when running in non-R6RS mode, a case-lambda form with no 
>> clauses causes a syntax error:
>>
>> $ larceny
>> Larceny v0.97 "Funny in the Head" (Aug 19 2009 04:24:46, 
>> precise:Posix:unified)
>> larceny.heap, built on Wed Aug 19 04:26:48 EDT 2009
>>
>>  > (case-lambda)
>> ERROR detected during macro expansion:
>> Use of macro does not match definition
>> (case-lambda)
>> #f
>>
>> This is a bug according to R6RS and SRFI 16.
> 
> Actually, I believe this also demonstrates a bug in the reference 
> implementation for SRFI 16.  The specification states:
> 
> (CASE-LAMBDA <clause> ...)
> 
> implying a case-lambda form includes 0 or more clauses, but the 
> reference implementation accepts only 1 or more.

The reference implementation of SRFI 16 has been fixed to address this.

David