Article
· Apr 16, 2023 4m read
Tuples ahead

Overview

Cross-Skilling from IRIS objectScript to Python it becomes clear there are some fascinating differences in syntax.

One of these areas was how Python returns Tuples from a method with automatic unpacking.

Effectively this presents as a method that returns multiple values. What an awesome invention :)

out1, out2 = some_function(in1, in2)

ObjectScript has an alternative approach with ByRef and Output parameters.

Do ##class(some_class).SomeMethod(.inAndOut1, in2, .out2)

Where:

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In old Caché versions it was possible to create a new role based on predefined %Developer by copying it and adding some resources as needed. It was true at least from 2010.1 to 2015.1.

After upgrade from 2015.1.4 to 2017.2.1 it turned that it's only partially true now. User with a "New-Developer" role can enter Studio and open existing cls/mac/etc for editing and everything is OK unless he tries to create something new (Ctrl-N), than he gets a pop-up with %msg: <User xxx does not have enough privilege to execute stored procedure %CSP.StudioTemplateMgr_Templates>

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The class %Compiler.UDL.TextServices arrived in 2015.1, bringing us methods for exporting a class in UDL format (i.e. looking just like we're used to seeing it in Studio), and importing a UDL format definition back into a namespace. Some source control tools including our Deltanji are now able to use UDL format, resulting in diffs that are easier to understand.

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