[Vm-dev] VM Maker: VMMaker.oscog-AlistairGrant.2455.mcz

Alistair Grant akgrant0710 at gmail.com
Tue Oct 16 06:21:58 UTC 2018

Hi Eliot,

On Mon, 15 Oct 2018 at 21:58, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> Hi Alistair,
> also
>     var := (self getenv: (self cCode: [key] inSmalltalk: [key allButLast])) ifNil: [0].
> doesn't make sense to me.  In C nil == 0.  So ifNil: [0] is a no-op in C.  Either the genenv: simulation should answer 0 or it should answer nil.  But we shouldn't fix the primitive two handle incorrect simulation; we should instead implement the simulated getenv: to match what the primitive expects.  Make sense?

Sorry I didn't get to this last night.

On Mon, 15 Oct 2018 at 21:55, Eliot Miranda <eliot.miranda at gmail.com> wrote:
>     support code like this should be tuned for simulation speed.  Don't bother with the asserts: (asserts belong in code that will be translated to C, or tests), and try and use and ifTrue:ifFalse: style rather than foo isBar ifTrue: []. foo isBaz ifTrue: [], to reduce the number of types comparisons done.


Thanks for your feedback,

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