Re: Possible bug in MemoizedSymbol

On Thu, Mar 13, 2003 at 05:22:51PM -0600, [email protected] wrote:
> On Thu, Mar 13, 2003 at 11:05:48PM +0100, Andreas Prohaska wrote:
> > 
> > I think, I have found a memory leak in the MemoizedSymbol implementation.
> > However, I'm not too familiar with SISC so I may be wrong. This is what
> > I have done:
> > 
> > I run a small scheme code like '(let ((a 1)) (+ a a))' in a single Context
> > for about 1000 times. It seems to me like the 'let' creates a kind of
> > naming context for all variables (e.g. 'a') created inside and stores
> > these variables as MemoizedSymbols (e.g. 'a_FooBarWhatEver'). These
> > MemoizedSymbols are stored in a static WeakHashMap with their names
> > (e.g. 'a_FooBarWhatEver') as key.
> 
> Were you repeatedly calling eval() or something?  If you run this code 
> in a Scheme loop, you won't be compiling the code over and over and thus 
> not generating new symbols.  Nevertheless...

Actually, even weirder: that particular expression should reduce to (+ 
'1 '1) after the optimizer finishes with it.  Was that actually the 
expression?

	Scott

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