#Compiler

On the back of my recent post on writing bug-less code I wanted to raise a few suggestions (to ISC) that would help prevent certain types of bugs at compile time. I've probably missed a few, but these are the main ones in my mind. Please contribute more suggestions.

Btw, these also serve as potential gotchas for new COS developers.

I except that introducing these types of changes can cause legacy code problems. Particularly where developers do some interesting overloading of method arguments.

Hi, Community!

Please share your experience on code deployment on production site. Do you compile ObjectScript on Production? Is it OK? 

Or you only compile on Test site and copy cache.dat to a Production?

I have classes A and B, B derived from A, A has method Abc.

From INT of class B I see that compiler copies implementation of Abc to class B, so that Abc exists both in A and B.

As result, when B invokes Abs, B.Abs() is executed instead of A.Abs(). In result debuger is not able to step into Abs and breakpoints in A.Abs never hit.

Why this happens and how can I avoid this?

Update:

OK, now I know the reason: compiler makes the copy if Abc has this line:

s cn=##Expression($$$quote(%classname))

hmmmm.

I'm looking at adding multilingual support to a couple of open source projects I'm working on. The solutions are already developed in CSP so I am not looking for alternative approaches.

I'm wondering what would be the best approach for CSP and separate JavaScript files.

Initially I was wondering if I should bake the default system language text at compile time, or provide the end user with a language selection option at run time.

I came across $$$TEXT reading the docs...

https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.

Class Queries in InterSystems IRIS (and Cache, Ensemble, HealthShare) is a useful tool that separates SQL queries from Object Script code. Basically, it works like this: suppose that you want to use the same SQL query with different arguments in several different places.In this case you can avoid code duplication by declaring the query body as a class query and then calling this query by name. This approach is also convenient for custom queries, in which the task of obtaining the next row is defined by a developer. Sounds interesting? Then read on!

Hi all!

I'm developing a mini-framework to implement annotations in Cache. I want to support two kind of annotations: metadata and method decorators. I've got stuck trying to implement the second one.

Metadata

With metadata annotations I can add metadata to any kind of target. A target can be a method/classmethod, parameter, property and class.

For example:

Class cache.TestClass Extends lib.Annotations
{

/// @Author(UserName = "me")
ClassMethod Test()
{
Write "Test!",!
}

}

Then, after compiling the class "cache.

Greetings! This article describes yet another simple way of creating installers for the solutions based on InterSystems Caché. The topic covers applications, which can be installed or completely removed from Caché with one action only. If you are still documenting installation instructions that have more than one step to do to install your application — it’s high time you automated this process. 

The first developer previews of InterSystems IRIS^® data platform, InterSystems IRIS^® for Health, and HealthShare^® Health Connect 2025.1 have been posted to the WRC developer preview site.  Containers can be found on our container registry and are tagged latest-preview.

These developer previews include the feature to migrate to IBM "Open XL C/C++ for AIX" 17.x compiler ensuring compatibility with future AIX builds as older compilers approach end-of-support. This migration focuses on the aixopenssl30 target, supporting SSL3 on AIX 7.2 and 7.3.

Hi community!
Is there any way to create new method keywords?
For example:

ClassMethod TestOne() [ MyKeyword = MyValue ]
{
    // Implementation
}

Another doubt (maybe another topic)
How can I generate new methods at compilation time for the same class?
I tried method generators, but It only gets compiled when I compile for the second time.
I also read this comment but I could not find out how to generate the methods and get them compiled in the first compilation.

For example:

Class util.

During programmatic classes compilation performed by the code like this:

set status=$system.OBJ.Load(updaterFile,"cruk-d",,.resList)

strange messages appear in console log, e.g.

05/06/18-15:54:12:424 (308512) 0 oops: was expecting crc 0x21e96e85,5a4c8b2c for rtn (Update.Import.1) rbufnum-15523
.
05/06/18-16:17:45:305 (4224) 0 oops: was expecting crc 0x21e96e85,5a4c8b2c for rtn (Update.Import.1) rbufnum-15523
05/06/18-16:22:30:485 (4224) 0 oops: was expecting crc 0x21e96e85,5a4c8b2c for rtn (Update.Import.

So another topic that has been of interest to a number of people since the beta was put up last week is in regard to Studio Hooks and Atelier. This requires a bit of background and then some discussion of how the architecture of Atelier necessitates some changes and then what our current thinking on the subject is.

Studio hooks were added to Cache over 10 years ago. They have two primary usages. The first is that on an appropriate action such as creating a new document, or compiling a document a callback is executed whose job is to interact with external source control systems.

1.Background

        1.1 I met a few project that their interface servers were crashed. Cutoms wanted resume server as fast as we can. their servers are running at lan,and they can't use git,there are some namesapce in the server running different service,and usualy there is only one server.

        1.2 In the message,it has property in type of characterstream,as you know,the message search page doesn't support filtering with  property of characterstream,so it's so hard to find the messge you want.

        1.3 Other workmate may update the code on the server,and mybe their is something wrong.

2.

Hello dear developers,

I am currently doing an internship and learning about InterSystems IRIS and ObjectScript and have downloaded and installed the community version of IRIS.

I have not made any changes in the Management Portal.
In Visual Studio Code I have loaded the InterSystems ObjectScript Extension Pack.

If I now want to compile a file, VSC throws an error:
"ERROR #16006: Document name 'x.csp' is invalid"

The name of the file is "index.csp"
This error also appears when I try to compile other files.
I have noticed that the first 4 characters of the name are always missing.

Due to a new project I'm getting involved inside %Installer stuff deeper than ever I'd be happy to. Most of it was pretty easy to get, thanks to documentation, articles and SAMPLES example, while I can't dig good solution for one problem. I'm trying to import and compile some classes, willing to ignore two types of errors: 5202 (NothingToCompile) and 5373 (PredecessorClassDoesNotExist - a normal case when SNMP sampling class is compiled for the 1st time, before it was registered). 

I've tried the following: 

<If Condition='#{##class(%File).Exists("${AddonDir}/AddClasses.

Hello,

Since version 1.93 of VS Code, the “import and compile” process has been very slow (more than an hour).
Have you encountered this issue and do you know how to resolve it?

Thank you,

Maxime

I am currently trying to add a condition to a routing rule that uses the %Source property of a routing rule.  Unfortunately I am getting compile errors when I use the "%", and if I get PROPERTY DOES NOT EXIST if I try and use any of field. I have tried referencing the messages as "Message." , "Record.",  "FullRecordMapClassName." , "Document." . Does anyone know how to reference the properties of a record map in a routing rule, or if it is even possible? Thanks!

How to understand what's wrong with compilation if the compilator just hides errors?

Compilation started on 05/15/2023 15:58:11 with qualifiers 'cuk'

Detected 1 errors during compilation in 0.003s.


Compilation started on 05/15/2023 15:58:32 with qualifiers 'cuk'

Detected 1 errors during compilation in 0.002s.


Compilation started on 05/15/2023 15:58:51 with qualifiers 'cuk'

Detected 40 errors during compilation in 0.089s.

40 errors, and what do I have to do with this so valuable information?

hi-

Can someone give me an example of how to JOB a class method that requires an array of values to be passed to it by reference.  

This is what I tried, but am getting compile errors because of the .params

job ##class(%SYSTEM.OBJ.FM2Class).All(.params)::5

Any thoughts on how to accomplish this, the simplest way.  I would like to avoid writing all of this to some global and having to write some wrapper to pick it up and then call the class method, which I certainly could do.  but is this the only way to do it?

*** updated from a comment as original question may not have been clear**

To clarify my question this is the library property helper class Library property helper when you look at the documentation for computed from documentation here Computed documentation

ClassMethod FullNameComputation(cols As %Library.PropertyHelper) As %String
{
    return cols.getfield("FirstName")_" "_cols.getfield("LastName")
}
// ...

ClassMethod RecordsComputation(cols As %Library.PropertyHelper) As %Library.ListOfDataTypes
{
  Set rsTProp = ##class(%SQL.Statement).%ExecDirect(,"Select * from

I was thinking about how to create a new parameter in a method, similar to Output or ByRef...

What documentation can I read to learn more about this?

I want to create a parameter customized.

Hi all,

I was wondering if there is any way to trigger the compilation of a class based on the compilation of another (unrelated) class. For example:

Class 1 = test.class

Class 2 = test.class.type.one

Class 3 = test.class.type.two

Every time class 2 or class 3 is compiled in Studio I would like to have class 1 automatically compiled as well.

The reason I need this is because class 1 has a method with CodeMode set to objectgenerator which generates some code based on what is found in classes 2 and 3.

I'm experiencing an issue while compiling code in Visual Studio Code with "cuk" qualifiers.

When I try to compile, the following message appears after a while:

In VSC, the "cuk" qualifiers are always used as default and the following message is shown in the Output panel of VSC when a compilation is successful:

I'm unsure if it is possible to replace the cuk qualifiers with something else.

I am using &html<> to output some CSS to my page (which is a class-based and not a tag-based page), and the selectors contain the '>' character which the compiler chokes on.  How can I escape the '>' so it still displays as such in the web page source but doesn't trip up the compiler?

This is for 2012.2 btw.

I'm trying to learn M programing for an Epic db class prerequisite. They said to download the IRIS Studio software to do the testing. I'm having a very difficult time finding information the language. I'm trying to run some examples that Epic has provided (like in below) but the compiler complains that it isn't valid. Of course, it doesn't tell you why it isn't valid.

r !,"Enter the hour: ",hr  
 r !,"Enter the minute: ",min 
 r !,"Enter the second: ",sec 
 s Mtime=$$ConvertToMTime(hr,min,sec)
 w !

I have a class with a projection that creates some persistent classes (chunks) and a non-persistent "Daemon" class that I want to have running in the background, doing some processing. The daemon needs to look at the "chunk" classes, and I want it to be simple to start the daemon -- I am currently calling the daemon's start method at the end of the CreateProjection method. When I do this, I get a <CLASS DOES NOT EXIST> error from the daemon when it tries to query against one of the chunk tables. But, if I add a "HANG 5" at the beginning of the daemon start method, this runs fine.

Hi everyone

I'm coding a script in order to validade an installation package following the steps:

In some specific cases I will need to terminate the current process and start a new one with some new parameters.
With any code inside my try catch block, whenever I terminate the process I receive a RESJOB and it works perfectly.
When my job is running a compilation ($SYSTEM.OBJ.Compile(.

I am trying to import the SalesForce Enterprise WSDL in InterSystems Ensemble Studio using the SOAP Add-In. However, when I do so I receive a class dependency loop, Error #5316 during compilation. The WSDL is the standard WSDL provided with SalesForce and works fine in SoapUI. In the SalesForce WSDL it is allowed for an object A to include an object B as an element, while at the same time object B is allowed object A as an element. I think this is what causes the class dependency loop for InterSystems. Does anyone has any suggestion how I can circumvent this error?

Is CR/LF changes to DTL files edited/committed to git via VS Code a known issue?

We had an issue with exporting files from one server and importing on another, using XML code exported from Studio: ERROR #6301: SAX XML Parser Error. Turns out that issue was down to CR/LF changes made when transferring the XML from one server to the other.

Hi folks,

We are in the process of migrating from Ensemble to IRIS.

After the migration I would like to find all usages of deprecated classes and methods in all of our code. This is to align with the changes in package like %SYSTEM.SQL for example.

Is there an easy way to do this, or maybe a tool that can assist?

Thanks.

Hello.
We're trying to create a script that compiles everything on a certain namespace, for that we are depending on CompileAll. However it seems that this method doesn't check for a dependency tree even when using flags like: curb.

Due to its apparent alphabetical nature, classes that come first but depend upon classes that come later fail to compile because their object still doesn't exists. Example:
Suppose we have to compile a class in which its name starts with A and it has a Parameter which contains an expression that calls for B.