Support objects in expressions

[TomasEng]

Important

This pull request is stacked upon #1769, which should be merged first.

Description

This pull request adds support for objects in expressions, along with an object function for creating an object. Here is an overview of the changes:

• New object function in ExpressionEvaluator. Because of the complexity of the function, I created a separate class named ObjectFunctionEvaluator for evaluating the function.
• Support for dictionaries in ExpressionValue. Most of the code did already exist, hiding in comments.

Here is the corresponding change in App frontend: Altinn/altinn-studio#18982

Related Issue(s)

• Support objects in expressions app-frontend-react#4190

Verification

• Your code builds clean without any errors or warnings
• Manual testing not possible since there is no use case for this until we add functions that accept objects as parameters; the automated unit tests should be sufficient
• Relevant automated test added (if you find this hard, leave it and we'll help out)
• All tests run green

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs.: Add docs about lists and objects in expressions altinn-studio-docs#2894

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 34aa6295-62f8-4316-b1d8-65cc22ede63d

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch support-objects-in-expressions

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[TomasEng]

Sonar complained about this variable having a name that contains "object", but we need this for the object function to work.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
92.9% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[TomasEng]

@coderabbitai review

[coderabbitai]

✅ Actions performed

Review triggered.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.