sarif — archive

Re: [sarif] #401: Improved design of address object design

From: Jim Kupsch <[email protected]>
To: [email protected]
Date: Mon, 29 Apr 2019 19:46:00 -0000

The unknown is only for this address to its parents. The same problem exists whether you use -1 or unknownOffset/Length. It is useful to know offsets up to the point of where it is unknown as you at least know it is relative to this address (grand..)parent object. The cleaner approach to working around the SDK not supporting nullable is to use the extra boolean. On 4/29/19 2:18 PM, Larry Golding (Myriad Consulting Inc) wrote: I really think my previous suggestion of growthDirection is the least bad alternative if we decide NOT to use Nullable<int> . I d modify my proposal to a Boolean growsTowardLowMemory , default false . From: [email protected] <[email protected]> On Behalf Of Larry Golding (Myriad Consulting Inc) Sent: Monday, April 29, 2019 11:46 AM To: James Kupsch <[email protected]> ; Michael Fanning <[email protected]> ; OASIS SARIF TC Discussion List <[email protected]> Subject: RE: [sarif] #401: Improved design of address object design Importance: High I m not as happy as I was a few moments ago. If the unknown properties default to false , then if you don t populate offsetFromParent (which happens at the top of every parent chain) or length (which can happen anywhere along the parent chain), then you have to remember to set the corresponding unknown property. You won t. Of if the unknown properties default to true , you have to set them to false whenever you do populate offsetFromParent or length . You won t. Michael (addressing this question specifically to him because of the SDK impact), I don t see a good alternative to Nullable<int> . Please let us know your opinion. Raising to red-bang. Larry From: Larry Golding (Myriad Consulting Inc) Sent: Monday, April 29, 2019 11:37 AM To: James Kupsch < [email protected] >; Michael Fanning < [email protected] >; OASIS SARIF TC Discussion List < [email protected] > Subject: RE: [sarif] #401: Improved design of address object design I could accept Boolean unknownLength and unknownOffsetFromParent, default false for both. I will write it this way and send a draft. I can always change this aspect of the design if the TC objects. Larry