On 1/16/2010 10:08 PM, David Cournapeau wrote:
Compilation with global type inference may be a good way to speed up
python, but it is not the only way. Your claim about lookups does seem
to contradict how the various efficient implementations of dynamic
languages work. For example, the V8 engine deal with dynamic
attributes without static analysis:
http://code.google.com/apis/v8/design.html
Reading that, I notice a couple of things.
1. Like Psycho, V8 trades space for time. Given that space is now
expanding more than time is shrinking, this is more sensible in general
than it was a decade ago. Given Javascript programs are usually small
and work with small objects, this is even more sensible for Javascript
than for some Python programs.
2. It compiles to object code rather than byte code. If the only target
is standard 32/64 bit Intel/AMD processors, this is quite sensible. Does
V8 have, for instance, Cray versions?
Guido wants the reference version to be runnable on everything with a C
compiler and maintainable and upgradeable by volunteers who are not
assembler experts (which I believe are getting more rare).
tjr
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