Operating on host project data

Question

Operating on host project data

gmcfarlane opened this issue 2 years ago · comments

Hello sir

thank you for the cool work. I have been looking for this, originally found the mdsn articles...

I have a project that deals with financial data. I have projects, cashflows, etc.
I want to be able to let the user do some basic scripting and say 'this instance should be the sum of those things...' etc.

i originally pulled the code off msdn. After thinking about a lot of approaches... embedding delegates, i decided the most straight forward way was to make the parser not be a singleton.
Instead, i make a parser instance, and pass data into that, then all the functions have access to the parser.

i considered passing data into the singleton, but figured it was a matter of time before two scripts walked on each other. the data would essentially be a global.

I ran into an issue w/ the msdn code and found this github.

I am going to do some testing and make sure i dont have the same basic problem here.
Assuming that checks out, how would you suggest integrating host project data?
I see there is one other issue that essentially asking for the same thing.

gmcfarlane · Answer 1 · Thu Apr 21 2022 18:05:30 GMT+0800 (China Standard Time)

Hey there. Upon studying the new codebase, I realize that you have made a lot of progress. Very much appreciated. I have put my data in the parserScript object. This gets passed along w/ each script and is precisely what was needed to solve my issue.
It also addresses the concern i had about 2 scripts fighting w/ each other over the global variables in your previous version!

awesome work sir.

greg

Vassili Kaplan · Answer 2 · Sun Aug 21 2022 06:05:28 GMT+0800 (China Standard Time)

Hi Greg,

The new version now has support for multiple interpreters, take a look.
No more global shared variables.

Cheers,
Vassili

gmcfarlane · Answer 3 · Mon Aug 22 2022 19:49:48 GMT+0800 (China Standard Time)

how do you handle circular references? i have cobbled something together... wondering if you have a more elegant solution that you use. greg

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-----Original Message----- From: "Vassili Kaplan" ***@***.***> Sent: Saturday, August 20, 2022 5:05pm To: "vassilych/cscs" ***@***.***> Cc: "gmcfarlane" ***@***.***>, "Author" ***@***.***> Subject: Re: [vassilych/cscs] Operating on host project data (Issue #30) Hi Greg, The new version now has support for multiple interpreters, take a look. No more global shared variables. Cheers, Vassili — Reply to this email directly, [ view it on GitHub ]( #30 (comment) ), or [ unsubscribe ]( https://github.com/notifications/unsubscribe-auth/AEUCMDIMZMWYBZCEEYRB4ALV2FJDFANCNFSM5TZNXVCQ ). You are receiving this because you authored the thread.Message ID: ***@***.***>

Vassili Kaplan · Answer 4 · Mon Aug 22 2022 21:27:14 GMT+0800 (China Standard Time)

hi, what do you mean? Can you provide a CSCS code for that example? Thanks Vassili

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On Mon, Aug 22, 2022 at 1:49 PM gmcfarlane ***@***.***> wrote: how do you handle circular references? i have cobbled something together... wondering if you have a more elegant solution that you use. greg -----Original Message----- From: "Vassili Kaplan" ***@***.***> Sent: Saturday, August 20, 2022 5:05pm To: "vassilych/cscs" ***@***.***> Cc: "gmcfarlane" ***@***.***>, "Author" ***@***.***> Subject: Re: [vassilych/cscs] Operating on host project data (Issue #30) Hi Greg, The new version now has support for multiple interpreters, take a look. No more global shared variables. Cheers, Vassili — Reply to this email directly, [ view it on GitHub ]( #30 (comment) ), or [ unsubscribe ]( https://github.com/notifications/unsubscribe-auth/AEUCMDIMZMWYBZCEEYRB4ALV2FJDFANCNFSM5TZNXVCQ ). You are receiving this because you authored the thread.Message ID: ***@***.***> — Reply to this email directly, view it on GitHub <#30 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AE74VFBUAKT7D2KMUHRQWTLV2NSONANCNFSM5TZNXVCQ> . You are receiving this because you commented.Message ID: ***@***.***>

gmcfarlane · Answer 5 · Mon Aug 22 2022 22:59:54 GMT+0800 (China Standard Time)

/*i am wondering if we should not have every fresh call chain be a tree. what would I do w that the goal here is not to delay my project which i hope makes me a lot of money, but it is to prevent circular references, lets do that and then stop... for now... */ using System; using System.Collections.Generic; using System.Text; using dataAccess; namespace Peregrine { public class dependencyTree { private static dependencyTree _instance; dependencyTreeItem _root = null; private dependencyTree(dependencyTreeItem root_) { _root = root_; _tree = new Dictionary<string, dependencyTreeItem>(); _tree.Add(root_.nameHash, root_); } public static void InitializeTree(dependencyTreeItem root_) { _instance = new dependencyTree(root_); } private static dependencyTree Instance { get { if (null == _instance) throw new Exception("tree has not been initialized"); return _instance; } } public static dependencyTreeItem Root { get { return Instance._root; } } public Dictionary<string, dependencyTreeItem> _tree; public static Dictionary<string, dependencyTreeItem> Tree { get { return Instance._tree; } } public static void Resolve() { Instance._root.Resolve(); foreach (dependencyTreeItem child in Instance._root.ChildItems) { //just cause you are my child does not mean you depend on me. // quite contraire... you probably need to look at my properties... // so i can not depend on you.... execpt when i do... child.Resolve(); } } public static void AddTreeNode(dependencyTreeItem anItem_, dependencyTreeItem dependsOnThisItem_) { if (false == Instance._tree.ContainsKey(dependsOnThisItem_.nameHash)) { Instance._tree.Add(dependsOnThisItem_.nameHash, dependsOnThisItem_); } dependencyTreeItem ti = Instance._tree[dependsOnThisItem_.nameHash]; if (dependencyTreeItem.RESOLVED_INPROGRESS == ti.resolved) { string offendingStack = string.Concat(anItem_.CurrentCallChain, dependencyTreeItem.CC_COUPLER, dependsOnThisItem_.nameHash); throw new Exception("You crazy goose. You have made a circular reference. " + offendingStack); } } public static Reset() { instance = null; } public static bool IsTreeInitialized() { return (null != _instance); } } }

Vassili Kaplan · Answer 6 · Tue Aug 23 2022 00:53:02 GMT+0800 (China Standard Time)

Not sure what does it have to do with CSCS? You provided C# code, not CSCS...

gmcfarlane · Answer 7 · Tue Aug 23 2022 05:14:43 GMT+0800 (China Standard Time)

functions defined within cscs can call each other... functionA could call functionB which calls functionA.... Its, ok. I think we have answered the question that there is not a cyclical reference detection facility w/in CSCS. If i get mine to something that would survive the real world, Ill let you know. Thank you very much for sharing this project. I was going to try and address my requirements w/ a spreadsheet package! would have been a nightmare! greg

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-----Original Message----- From: "Vassili Kaplan" ***@***.***> Sent: Monday, August 22, 2022 11:53am To: "vassilych/cscs" ***@***.***> Cc: "gmcfarlane" ***@***.***>, "Author" ***@***.***> Subject: Re: [vassilych/cscs] Operating on host project data (Issue #30) Not sure what does it have to do with CSCS? You provided C# code, not CSCS... — Reply to this email directly, [ view it on GitHub ]( #30 (comment) ), or [ unsubscribe ]( https://github.com/notifications/unsubscribe-auth/AEUCMDIU2S44CZQREUQJWVTV2OV7TANCNFSM5TZNXVCQ ). You are receiving this because you authored the thread.Message ID: ***@***.***>