Comprehensive Element Update #33

ax3l · 2025-10-22T16:59:57Z

Update to include all currently defined elements and parameter classes.

rebase out preparatory PRs Sub-Directories: kinds, parameters #34 Clean & Split Tests #36
vibe-code draft & iterations
careful author review of
- elements
- parameters
- tests

Based on the prompt > We defined a meta-data schema for particle accelerator lattice lements in pals. > You will find in pals/source the description of elements and their meta-data, the pals/examples has an example. > Ignore the inheritance feature for now. > I want you to find and read the element definitions. > I want you to find and read the implementation of existing PALS Python elements in pals-python/. Follow their structure and style. > Then, do this workflow: > 1. read and understand one element at a time > 2. go to pals-python/schema and add a new element, one at a time, following the existing implementation > 3. go to pals-python/tests/test_schema.py and define a compact test per new element > Repeat this until all elements defined in PALS are implemented in pals-python. And ~20 follow-up prompts.

src/pals/parameters/ElectricMultipoleParameters.py

ax3l · 2025-10-23T19:52:45Z

src/pals/parameters/ElectricMultipoleParameters.py

+    # TODO: add ElectricMultipoleParameters in a follow-up RP
+    # https://pals-project.readthedocs.io/en/latest/element-parameters.html#electricmultipolep-electric-multipole-parameters


I want to keep this PR relatively simple and this property is not.
So let's do this in #38

EZoni · 2025-10-27T17:37:41Z

tests/test_serialization.py

+    # UnionEle
+    unionele = pals.UnionEle(name="unionele1", elements=[])


I guess we can leave it here, but what is the purpose of this empty union?

Ah, good point.

We did not talk about this in the PALS standard: do we allow an empty union (e.g., for convenience in lattice manipulations). We can leave it here and allow it for now.

But we should add a test that has actual sub-elements.

Will go in #40

tests/test_parameters.py

src/pals/parameters/RFParameters.py

src/pals/parameters/ApertureParameters.py

Co-authored-by: Edoardo Zoni <[email protected]>

And more limits on ints and string literal values.

ax3l · 2025-10-27T22:49:06Z

src/pals/kinds/BeamLine.py

+                # Base classes (for testing compatibility)
                BaseElement,
                ThickElement,


I will remove this in a follow-up PR: we do not want to expose mixin classes as real element in a concrete BeamLine. I already update the tests accordingly.

EZoni · 2025-10-28T18:02:40Z

tests/test_elements.py

-    passed = True
-    try:
+    with pytest.raises(ValidationError):
        element.length = element_length
-    except ValidationError as e:
-        print(e)
-        passed = False
-    assert not passed


Great to learn that this can be done in two lines - didn't know that.

Yep! :) I use this in pyAMReX quite a bit to ensure we do not segfault but can recover on issues.

EZoni

I reviewed the commits after my last review and they look good to me. We can do more work on the tests in future PRs, if needed.

ax3l self-assigned this Oct 22, 2025

ax3l added the element kinds beamline elements & segments/lines label Oct 22, 2025

This was referenced Oct 22, 2025

Sub-Directories: kinds, parameters #34

Merged

Clean & Split Tests #36

Merged

ax3l force-pushed the update-elements branch 3 times, most recently from a9c3c05 to 3738740 Compare October 23, 2025 18:06

ax3l force-pushed the update-elements branch 3 times, most recently from 09c6479 to c95f8f6 Compare October 23, 2025 19:11

ax3l changed the title ~~[WIP] Comprehensive Element Update~~ Comprehensive Element Update Oct 23, 2025

ax3l commented Oct 23, 2025

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ax3l force-pushed the update-elements branch 4 times, most recently from 14555ab to 14d22be Compare October 23, 2025 19:46

Final Review & Cleanup

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ax3l force-pushed the update-elements branch from 14d22be to fed0990 Compare October 23, 2025 19:50

ax3l mentioned this pull request Oct 23, 2025

Implement ElectricMultipoleParameters #38

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ax3l commented Oct 23, 2025

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ax3l requested a review from EZoni October 23, 2025 19:53

ax3l assigned EZoni and unassigned ax3l Oct 23, 2025

EZoni reviewed Oct 27, 2025

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EZoni reviewed Oct 27, 2025

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Clean/Simplify Import

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Co-authored-by: Edoardo Zoni <[email protected]>

More Parameter Validations

162d4df

And more limits on ints and string literal values.

ax3l force-pushed the update-elements branch from 62ab983 to 162d4df Compare October 27, 2025 20:36

ax3l mentioned this pull request Oct 27, 2025

Implement Union Element #39

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ax3l added 2 commits October 27, 2025 14:48

Cleanup

55557e1

Update Test: w/o Mixin Classes

34afd31

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ax3l requested a review from EZoni October 27, 2025 22:49

ax3l mentioned this pull request Oct 27, 2025

Implement UnionEle.elements #40

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EZoni merged commit bb0afa7 into pals-project:main Oct 28, 2025
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ax3l deleted the update-elements branch October 28, 2025 20:51

EZoni mentioned this pull request Oct 29, 2025

Refactor MagneticMultipoleParameters #44

Merged

		# TODO: add ElectricMultipoleParameters in a follow-up RP
		# https://pals-project.readthedocs.io/en/latest/element-parameters.html#electricmultipolep-electric-multipole-parameters

		# UnionEle
		unionele = pals.UnionEle(name="unionele1", elements=[])

Comprehensive Element Update #33

Comprehensive Element Update #33

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ax3l commented Oct 22, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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ax3l commented Oct 22, 2025 •

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