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Merged
cmsbuild merged 5 commits into from
Jan 13, 2026
Merged

Improve PortableHost{Collection,Object} dictionary declarations #48824

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6026db4
List PortableTestHost{Collection,Object} nested type aliases before t…
makortel Aug 29, 2025
69ddd79
Add class version and checksum for TestStruct
makortel Dec 30, 2025
7e8047f
Include the necessity of dictionaries for the nested type alias in RE…
makortel Dec 29, 2025
5bebe3b
Define dictionaries of nested type aliases of Portable* before their …
makortel Dec 29, 2025
d001897
Mark LST collections transient
makortel Dec 30, 2025
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8 changes: 7 additions & 1 deletion DataFormats/BeamSpot/src/classes_def.xml
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Expand Up @@ -5,11 +5,17 @@
</class>
<class name="edm::Wrapper<reco::BeamSpot>"/>

<class name="BeamSpotHost"/>
<!-- BeamSpotHost::Product must be listed before the aliased-to type -->
<!-- TODO: we should find a better way than replicating the class versions and checksums -->
<class name="BeamSpotHost::Product" ClassVersion="3">
<version ClassVersion="3" checksum="280341519"/>
</class>

<class name="BeamSpotPOD" ClassVersion="3">
<version ClassVersion="3" checksum="280341519"/>
</class>
Comment on lines +10 to 17
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@makortel makortel Dec 30, 2025

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@pcanal I think we discussed about the apparent need to define the class versions and checksums twice (the BeamSpotHost::Product is an alias for BeamSpotPOD). Or, I didn't manage to come up with any other way that would result in both type names to end up in the .rootmap file. I wouldn't hold this PR for an improvement, but we should follow up in #49458.

<class name="edm::Wrapper<BeamSpotPOD>"/>

<class name="BeamSpotHost"/>
<class name="edm::Wrapper<BeamSpotHost>"/>
</lcgdict>
8 changes: 6 additions & 2 deletions DataFormats/EcalRecHit/src/classes_def.xml
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Expand Up @@ -39,15 +39,19 @@
<class name="edm::Wrapper<edm::DetSetVector<EcalRecHit> >"/>
<class name="edm::Wrapper<std::vector<std::vector<edm::DetSet<EcalRecHit> > > >"/>

<class name="EcalUncalibratedRecHitHostCollection"/>
<!-- EcalUncalibratedRecHitHostCollection::Layout must be listed before the aliased-to type -->
<class name="EcalUncalibratedRecHitHostCollection::Layout"/>
<class name="EcalOotAmpArray"/>
<class name="EcalUncalibratedRecHitSoA"/>
<class name="EcalUncalibratedRecHitSoA::View"/>
<class name="EcalUncalibratedRecHitHostCollection"/>
<class name="edm::Wrapper<EcalUncalibratedRecHitHostCollection>" splitLevel="0"/>

<class name="EcalRecHitHostCollection"/>
<!-- EcalRecHitHostCollection::Layout must be listed before the aliased-to type -->
<class name="EcalRecHitHostCollection::Layout"/>
<class name="EcalRecHitSoA"/>
<class name="EcalRecHitSoA::View"/>
<class name="EcalRecHitHostCollection"/>
<class name="edm::Wrapper<EcalRecHitHostCollection>" splitLevel="0"/>

</lcgdict>
19 changes: 12 additions & 7 deletions DataFormats/HGCalReco/src/classes_def.xml
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Expand Up @@ -76,24 +76,29 @@
<class name="edm::Wrapper<TICLCandidate>" />
<class name="edm::Wrapper<std::vector<TICLCandidate> >" />

<class name="MtdHostCollection"/>
<!-- MtdHostCollection::Layout must be listed before the aliased-to type -->
<class name="MtdHostCollection::Layout"/>
<class name="MtdSoA"/>
<class name="MtdSoA::View"/>

<class name="MtdHostCollection"/>
<class name="edm::Wrapper<MtdHostCollection>" splitLevel="0"/>

<class name="HGCalSoARecHitsHostCollection"/>
<!-- HGCalSoARecHitsHostCollection::Layout must be listed before the aliased-to type -->
<class name="HGCalSoARecHitsHostCollection::Layout"/>
<class name="HGCalSoARecHits"/>
<class name="HGCalSoARecHitsHostCollection" ClassVersion="3" rntupleStreamerMode="true">
<version ClassVersion="3" checksum="1452864040"/>
</class>
<class name="edm::Wrapper<HGCalSoARecHitsHostCollection>" splitLevel="0"/>

<class name="HGCalSoARecHitsExtra"/>
<class name="HGCalSoARecHitsExtraHostCollection" rntupleStreamerMode="true"/>
<!-- HGCalSoARecHitsExtraHostCollection::Layout must be listed before the aliased-to type -->
<class name="HGCalSoARecHitsExtraHostCollection::Layout"/>
<class name="HGCalSoARecHitsExtra"/>
<class name="edm::Wrapper<HGCalSoARecHitsExtraHostCollection>" splitLevel="0"/>

<class name="HGCalSoAClusters"/>
<class name="HGCalSoAClustersHostCollection" rntupleStreamerMode="true"/>
<!-- HGCalSoAClustersHostCollection::Layout must be listed before the aliased-to type -->
<class name="HGCalSoAClustersHostCollection::Layout"/>
<class name="HGCalSoAClusters"/>
<class name="edm::Wrapper<HGCalSoAClustersHostCollection>" splitLevel="0"/>

</lcgdict>
12 changes: 8 additions & 4 deletions DataFormats/HcalDigi/src/classes_def.xml
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Expand Up @@ -114,15 +114,19 @@
</class>
<class name="edm::Wrapper<HcalUMNioDigi>" splitLevel="0"/>

<class name="hcal::HcalPhase1DigiSoA"/>
<class name="hcal::HcalPhase0DigiSoA"/>
<class name="hcal::HcalPhase1DigiSoA::View"/>
<class name="hcal::HcalPhase0DigiSoA::View"/>

<class name="hcal::Phase1DigiHostCollection"/>
<!-- hcal::Phase1DigiHostCollection::Layout must be listed before the aliased-to type -->
<class name="hcal::Phase1DigiHostCollection::Layout"/>
<class name="hcal::HcalPhase1DigiSoA"/>
<class name="hcal::HcalPhase1DigiSoA::View"/>
<class name="edm::Wrapper<hcal::Phase1DigiHostCollection>" splitLevel="0"/>

<class name="hcal::Phase0DigiHostCollection"/>
<!-- hcal::Phase0DigiHostCollection::Layout must be listed before the aliased-to type -->
<class name="hcal::Phase0DigiHostCollection::Layout"/>
<class name="hcal::HcalPhase0DigiSoA"/>
<class name="hcal::HcalPhase0DigiSoA::View"/>
<class name="edm::Wrapper<hcal::Phase0DigiHostCollection>" splitLevel="0"/>

</lcgdict>
4 changes: 3 additions & 1 deletion DataFormats/HcalRecHit/src/classes_def.xml
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Expand Up @@ -120,8 +120,10 @@
<class name="edm::reftobase::Holder<CaloRecHit,edm::Ref<edm::SortedCollection<HORecHit,edm::StrictWeakOrdering<HORecHit> >,HORecHit,edm::refhelper::FindUsingAdvance<edm::SortedCollection<HORecHit,edm::StrictWeakOrdering<HORecHit> >,HORecHit> > >" />
<class name="edm::reftobase::Holder<CaloRecHit,edm::Ref<edm::SortedCollection<HBHERecHit,edm::StrictWeakOrdering<HBHERecHit> >,HBHERecHit,edm::refhelper::FindUsingAdvance<edm::SortedCollection<HBHERecHit,edm::StrictWeakOrdering<HBHERecHit> >,HBHERecHit> > >" />

<class name="hcal::RecHitHostCollection" />
<!-- hcal::RecHitHostCollection::Layout must be listed before the aliased-to type -->
<class name="hcal::RecHitHostCollection::Layout" />
<class name="hcal::HcalRecHitSoA"/>
<class name="hcal::HcalRecHitSoA::View"/>
<class name="hcal::RecHitHostCollection" />
<class name="edm::Wrapper<hcal::RecHitHostCollection>" splitLevel="0"/>
</lcgdict>
24 changes: 12 additions & 12 deletions DataFormats/ParticleFlowReco/src/classes_serial_def.xml
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@@ -1,29 +1,29 @@
<lcgdict>
<class name="reco::CaloRecHitHostCollection"/>
<!-- reco::CaloRecHitHostCollection::Layout must be listed before the aliased-to type -->
<class name="reco::CaloRecHitHostCollection::Layout"/>
<class name="reco::CaloRecHitSoA"/>
<class name="reco::CaloRecHitSoA::View"/>
<class name="reco::CaloRecHitHostCollection" ClassVersion="3">
<version ClassVersion="3" checksum="1876594952"/>
</class>
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@makortel makortel Dec 30, 2025

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I also removed the explicit versions and checksums for the PortableHostCollections that still had it. Their versioning should be done in a different way because PortableHostCollection<T> is a class template.

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@pcanal pcanal Jan 6, 2026

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I assume that we could extend the mechanism documented at core/dictgen/res/DictSelectionReader.h which allows the selection to be done via C++ code/template instantiation rather than xml or linkdef.

<class name="edm::Wrapper<reco::CaloRecHitHostCollection>" splitLevel="0"/>

<class name="reco::PFRecHitHostCollection"/>
<!-- reco::PFRecHitHostCollection::Layout must be listed before the aliased-to type -->
<class name="reco::PFRecHitHostCollection::Layout"/>
<class name="reco::PFRecHitSoA"/>
<class name="reco::PFRecHitSoA::View"/>
<class name="reco::PFRecHitHostCollection" ClassVersion="3">
<version ClassVersion="3" checksum="1936051484"/>
</class>
<class name="edm::Wrapper<reco::PFRecHitHostCollection>" splitLevel="0"/>

<class name="reco::PFClusterHostCollection"/>
<!-- reco::PFClusterHostCollection::Layout must be listed before the aliased-to type -->
<class name="reco::PFClusterHostCollection::Layout"/>
<class name="reco::PFClusterSoA"/>
<class name="reco::PFClusterSoA::View"/>
<class name="reco::PFClusterHostCollection" ClassVersion="3">
<version ClassVersion="3" checksum="1232566394"/>
</class>
<class name="edm::Wrapper<reco::PFClusterHostCollection>" splitLevel="0"/>

<class name="reco::PFRecHitFractionHostCollection"/>
<!-- reco::PFRecHitFractionHostCollection::Layout must be listed before the aliased-to type -->
<class name="reco::PFRecHitFractionHostCollection::Layout"/>
<class name="reco::PFRecHitFractionSoA"/>
<class name="reco::PFRecHitFractionSoA::View"/>
<class name="reco::PFRecHitFractionHostCollection" ClassVersion="3">
<version ClassVersion="3" checksum="2181211668"/>
</class>
<class name="edm::Wrapper<reco::PFRecHitFractionHostCollection>" splitLevel="0"/>
</lcgdict>
5 changes: 5 additions & 0 deletions DataFormats/Portable/README.md
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Expand Up @@ -34,6 +34,8 @@ would create the file `classes.cc` with the content:

SET_PORTABLEHOSTOBJECT_READ_RULES(portabletest::TestHostObject);
```
**Note:** The dictionary for `portabletest::TestHostObject::Product` (using the same type alias as in the registration macro above) must be placed in the `classes_def.xml` file before the type that `Product` aliases.


`PortableHostObject<T>` objects can also be read back in "bare ROOT" mode, without any dictionaries.
They have no implicit or explicit references to alpaka (neither as part of the class signature nor as part of its name).
Expand Down Expand Up @@ -93,6 +95,8 @@ one would create the file `classes.cc` with the content:

SET_PORTABLEHOSTCOLLECTION_READ_RULES(portabletest::TestHostCollection);
```
**Note:** The dictionary for `portabletest::TestHostCollection::Layout` (using the same type alias as in the registration macro above) must be placed in the `classes_def.xml` file before the type that `Layout` aliases.


`PortableHostCollection<T>` collections can also be read back in "bare ROOT" mode, without any dictionaries.
They have no implicit or explicit references to alpaka (neither as part of the class signature nor as part of its name).
Expand Down Expand Up @@ -159,6 +163,7 @@ Both scripts expect the collections to be aliased as in:
```
using TestDeviceMultiCollection3 = PortableCollection3<TestSoA, TestSoA2, TestSoA3>;
```
and assume the `TestDeviceMultiCollection3` is used in the `SET_PORTABLEHOSTMULTICOLLECTION_READ_RULES()` macro.

For the host xml, SoA layouts have to be listed and duplicates should be removed manually is multiple
collections share a same layout. The scripts are called as follows:
Expand Down
7 changes: 5 additions & 2 deletions DataFormats/Portable/scripts/portableHostCollectionHints
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Expand Up @@ -16,6 +16,11 @@ print("<lcgdict>")
for l in layouts:
print(" <class name=\"%s\"/>"% l)
print()
print(" <!-- Collection declaration for dictionary -->")
print(" <class name=\"%s\"/>"% collectionName)
print(" <!-- %s::Implementation alias must be listed before the aliased-to type -->"% collectionName)
print(" <class name=\"%s::Implementation\"/>"% collectionName)
print()
if len(layouts) > 1:
print(" <!-- Recursive templates (with no data) ensuring we have one CollectionLeaf<index, type> for each layout in the collection -->")
for i in range(0, len(layouts)):
Expand All @@ -27,7 +32,5 @@ if len(layouts) > 1:
for i in range(0, len(layouts)):
print(" <class name=\"portablecollection::CollectionLeaf<%d, %s>\"/>" % (i, layouts[i]))
print("")
print(" <!-- Collection declaration for dictionary -->")
print(" <class name=\"%s\"/>"% collectionName)
print(" <class name=\"edm::Wrapper<%s>\" splitLevel=\"0\"/>"% collectionName)
print("</lcgdict>")
51 changes: 38 additions & 13 deletions DataFormats/PortableTestObjects/src/classes_def.xml
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@@ -1,15 +1,34 @@
<lcgdict>
<class name="portabletest::TestHostCollection"/>
<!-- portabletest::TestHostCollection::Layout alias must be listed before the aliased-to type -->
<class name="portabletest::TestHostCollection::Layout"/>
<class name="edm::Wrapper<portabletest::TestHostCollection>" splitLevel="0"/>

<class name="portabletest::TestStruct"/>
<class name="portabletest::TestHostObject"/>
<!-- portabletest::TestHostObject::Product alias must be listed before the aliased-to type -->
<!-- TODO: we should find a better way than replicating the class versions and checksums -->
<class name="portabletest::TestHostObject::Product" ClassVersion="3">
<version ClassVersion="3" checksum="1507282054"/>
</class>
<class name="portabletest::TestStruct" ClassVersion="3">
<version ClassVersion="3" checksum="1507282054"/>
</class>
<class name="edm::Wrapper<portabletest::TestHostObject>"/>

<class name="portabletest::TestSoALayout<128,false>"/>
<class name="portabletest::TestSoALayout2<128,false>"/>
<class name="portabletest::TestSoALayout3<128,false>"/>

<!-- Collection declaration for dictionary -->
<class name="portabletest::TestHostMultiCollection2"/>
<!-- portabletest::TestHostObject::Implementation alias must be listed before the aliased-to type -->
<class name="portabletest::TestHostMultiCollection2::Implementation"/>

<!-- Collection declaration for dictionary -->
<class name="portabletest::TestHostMultiCollection3"/>
<!-- portabletest::TestHostObject::Implementation alias must be listed before the aliased-to type -->
<class name="portabletest::TestHostMultiCollection3::Implementation"/>

<!-- Recursive templates (with no data) ensuring we have one CollectionLeaf<index, type> for each layout in the collection -->
<class name="portablecollection::CollectionImpl<0, portabletest::TestSoALayout<128, false>, portabletest::TestSoALayout2<128, false>>"/>
<class name="portablecollection::CollectionImpl<1, portabletest::TestSoALayout2<128, false>>"/>
Expand All @@ -18,9 +37,6 @@
<class name="portablecollection::CollectionLeaf<0, portabletest::TestSoALayout<128, false>>"/>
<class name="portablecollection::CollectionLeaf<1, portabletest::TestSoALayout2<128, false>>"/>

<!-- Collection declaration for dictionary -->
<class name="portabletest::TestHostMultiCollection2"/>

<class name="edm::Wrapper<portabletest::TestHostMultiCollection2>" splitLevel="0"/>

<!-- Recursive templates (with no data) ensuring we have one CollectionLeaf<index, type> for each layout in the collection -->
Expand All @@ -35,48 +51,57 @@
-->
<class name="portablecollection::CollectionLeaf<2, portabletest::TestSoALayout3<128, false>>"/>

<!-- Collection declaration for dictionary -->
<class name="portabletest::TestHostMultiCollection3"/>

<class name="edm::Wrapper<portabletest::TestHostMultiCollection3>" splitLevel="0"/>

<class name="portabletest::TestProductWithPtr<alpaka_common::DevHost>"/>
<class name="edm::Wrapper<portabletest::TestProductWithPtr<alpaka_common::DevHost>>" persistent="false"/>

<!-- Torch SoAs and Collections -->
<class name="portabletest::ParticleHostCollection"/>
<!-- portabletest::ParticleHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::ParticleHostCollection::Layout"/>
<class name="portabletest::ParticleSoA"/>
<class name="portabletest::ParticleSoA::View"/>
<class name="portabletest::ParticleSoA::ConstView"/>
<class name="portabletest::ParticleHostCollection"/>
<class name="edm::Wrapper<portabletest::ParticleHostCollection>" splitLevel="0"/>

<class name="portabletest::SimpleNetHostCollection"/>
<!-- portabletest::SimpleNetHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::SimpleNetHostCollection::Layout"/>
<class name="portabletest::SimpleNetSoA"/>
<class name="portabletest::SimpleNetSoA::View"/>
<class name="portabletest::SimpleNetSoA::ConstView"/>
<class name="portabletest::SimpleNetHostCollection"/>
<class name="edm::Wrapper<portabletest::SimpleNetHostCollection>" splitLevel="0"/>

<class name="portabletest::MultiHeadNetHostCollection"/>
<!-- portabletest::MultiHeadNetHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::MultiHeadNetHostCollection::Layout"/>
<class name="portabletest::MultiHeadNetSoA"/>
<class name="portabletest::MultiHeadNetSoA::View"/>
<class name="portabletest::MultiHeadNetSoA::ConstView"/>
<class name="portabletest::MultiHeadNetHostCollection"/>
<class name="edm::Wrapper<portabletest::MultiHeadNetHostCollection>" splitLevel="0"/>

<class name="portabletest::ImageHostCollection"/>
<!-- portabletest::ImageHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::ImageHostCollection::Layout"/>
<class name="portabletest::ImageSoA"/>
<class name="portabletest::ImageSoA::View"/>
<class name="portabletest::ImageSoA::ConstView"/>
<class name="portabletest::ImageHostCollection"/>
<class name="edm::Wrapper<portabletest::ImageHostCollection>" splitLevel="0"/>

<class name="portabletest::LogitsHostCollection"/>
<!-- portabletest::LogitsHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::LogitsHostCollection::Layout"/>
<class name="portabletest::LogitsSoA"/>
<class name="portabletest::LogitsSoA::View"/>
<class name="portabletest::LogitsSoA::ConstView"/>
<class name="portabletest::LogitsHostCollection"/>
<class name="edm::Wrapper<portabletest::LogitsHostCollection>" splitLevel="0"/>

<class name="portabletest::MaskHostCollection"/>
<!-- portabletest::MaskHostCollection::Layout must be listed before the aliased-to type -->
<class name="portabletest::MaskHostCollection::Layout"/>
<class name="portabletest::MaskSoA"/>
<class name="portabletest::MaskSoA::View"/>
<class name="portabletest::MaskSoA::ConstView"/>
<class name="portabletest::MaskHostCollection"/>
<class name="edm::Wrapper<portabletest::MaskHostCollection>" splitLevel="0"/>
</lcgdict>
8 changes: 4 additions & 4 deletions DataFormats/SiPixelClusterSoA/src/classes_def.xml
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@@ -1,10 +1,10 @@
<lcgdict>
<class name="PortableHostCollection<SiPixelClustersSoA>"/>
<!-- PortableHostCollection<SiPixelClustersSoA>::Layout must be listed before the aliased-to type -->
<class name="PortableHostCollection<SiPixelClustersSoA>::Layout"/>
<class name="SiPixelClustersSoA"/>
<class name="SiPixelClustersSoA::View"/>
<class name="PortableHostCollection<SiPixelClustersSoA>"/>

<class name="SiPixelClustersHost" ClassVersion="3">
<version ClassVersion="3" checksum="3089948089"/>
</class>
<class name="SiPixelClustersHost"/>
<class name="edm::Wrapper<SiPixelClustersHost>" splitLevel="0"/>
</lcgdict>
17 changes: 8 additions & 9 deletions DataFormats/SiPixelDigiSoA/src/classes_def.xml
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@@ -1,18 +1,17 @@
<lcgdict>
<class name="PortableHostCollection<SiPixelDigisSoA>"/>
<!-- PortableHostCollection<SiPixelDigisSoA>::Layout must be listed before the aliased-to type -->
<class name="PortableHostCollection<SiPixelDigisSoA>::Layout"/>
<class name="SiPixelDigisSoA"/>
<class name="SiPixelDigisSoA::View"/>
<class name="PortableHostCollection<SiPixelDigisSoA>"/>
<class name="SiPixelDigisHost" ClassVersion="4">
<version ClassVersion="4" checksum="2247404879"/>
<version ClassVersion="3" checksum="3022474662"/>
</class>
<class name="SiPixelDigisHost"/>
<class name="edm::Wrapper<SiPixelDigisHost>" splitLevel="0"/>

<class name="PortableHostCollection<SiPixelDigiErrorsSoA>"/>
<!-- PortableHostCollection<SiPixelDigiErrorsSoA>::Layout must be listed before the aliased-to type -->
<class name="PortableHostCollection<SiPixelDigiErrorsSoA>::Layout"/>
<class name="SiPixelDigiErrorsSoA"/>
<class name="SiPixelDigiErrorsSoA::View"/>
<class name="PortableHostCollection<SiPixelDigiErrorsSoA>"/>
<class name="SiPixelDigiErrorsHost" ClassVersion="3">
<version ClassVersion="3" checksum="958593711"/>
</class>
<class name="SiPixelDigiErrorsHost"/>
<class name="edm::Wrapper<SiPixelDigiErrorsHost>" splitLevel="0"/>
</lcgdict>
13 changes: 9 additions & 4 deletions RecoTracker/LSTCore/src/classes_def.xml
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Expand Up @@ -2,16 +2,21 @@
<class name="lst::HitsBaseSoALayout<128,false>"/>
<class name="lst::PixelSeedsSoALayout<128,false>"/>

<class name="lst::LSTInputHostCollection"/>
<!-- lst::LSTInputHostCollection::Implementation must be listed before the aliased-to type -->
<class name="lst::LSTInputHostCollection::Implementation"/>

<class name="portablecollection::CollectionImpl<0,lst::HitsBaseSoALayout<128,false>,lst::PixelSeedsSoALayout<128,false> >"/>
<class name="portablecollection::CollectionImpl<1,lst::PixelSeedsSoALayout<128,false> >"/>

<class name="portablecollection::CollectionLeaf<0,lst::HitsBaseSoALayout<128,false> >"/>
<class name="portablecollection::CollectionLeaf<1,lst::PixelSeedsSoALayout<128,false> >"/>

<class name="lst::LSTInputHostCollection"/>
<class name="edm::Wrapper<lst::LSTInputHostCollection>" splitLevel="0"/>
<class name="edm::Wrapper<lst::LSTInputHostCollection>" splitLevel="0" persistent="false"/>
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@makortel makortel Dec 30, 2025

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I also marked the LST collections as transient (by policy non-DataFormat packages should not define persistable data products).


<class name="lst::TrackCandidatesBaseSoALayout<128,false>"/>
<class name="lst::TrackCandidatesBaseHostCollection"/>
<class name="edm::Wrapper<lst::TrackCandidatesBaseHostCollection>" splitLevel="0"/>
<!-- lst::TrackCandidatesBaseHostCollection::Layout must be listed before the aliased-to type -->
<class name="lst::TrackCandidatesBaseHostCollection::Layout"/>
<class name="lst::TrackCandidatesBaseSoALayout<128,false>"/>
<class name="edm::Wrapper<lst::TrackCandidatesBaseHostCollection>" splitLevel="0" persistent="false"/>
</lcgdict>