>> how much does this patch slow execution down? it's one more hash lookup. >> affect speed of $var or $$var? or both? >> > AFAICS, it should make every local-variable (non-global) lookup slower. > Since it needs to do a lookup in the globals table first. > Slows the global ones too, though that can be reduced (while slightly worsening the non-global lookups) by not bothering to lookup the auto_global table if we're in the global scope already...
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