On 29 March 2012 11:03, Francisco Garau <
[hidden email]> wrote:
> Hi - in porting the Type Inference Engine to Pharo, I came across this
> problem.
>
> I was using the Interpreter class to help translate from the number of a
> primitive into a meaningful selector (eg from 1 to primitiveAdd).
>
> Any ideas how to achieve something similar in Pharo?
>
> Assuming primitive numbers haven't changed, I could just copy that
> method...
>
It is changed, of course, you'd better use Cog's primitive table(s).
And i am +100000 for the idea.
If you read vm-dev list , i recently pointed out on same thing.
It would be nice to replace numbers with selectors. And change the
compiler to translate them.
> - Francisco
>
>
> In Squeak 2.8:
>
> Interpreter class >> initializePrimitiveTable
>
> "This table generates a C switch statement for primitive
> dispatching."
>
>
>
> "NOTE: The real limit here is 2047, but our C compiler
> currently barfs over 700"
>
> MaxPrimitiveIndex _ 700.
>
> PrimitiveTable _ Array new: MaxPrimitiveIndex + 1.
>
> self table: PrimitiveTable from:
>
> #( "Integer Primitives (0-19)"
>
> (0 primitiveFail)
>
> (1 primitiveAdd)
>
> (2 primitiveSubtract)
>
> (3 primitiveLessThan)
>
> (4 primitiveGreaterThan)
>
> (5 primitiveLessOrEqual)
>
> (6 primitiveGreaterOrEqual)
>
> (7 primitiveEqual)
>
> (8 primitiveNotEqual)
>
> (9 primitiveMultiply)
>
> (10 primitiveDivide)
>
> (11 primitiveMod)
>
> :
>
> <and so on>
>
>
--
Best regards,
Igor Stasenko.
Locked
