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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import awkward as ak
def delta_r2(a, b):
return (a.eta - b.eta) ** 2 + (a.phi - b.phi) ** 2
def test():
form = ak.forms.from_dict(
{
"class": "RecordArray",
"fields": ["muon", "jet"],
"contents": [
{
"class": "ListOffsetArray",
"offsets": "i64",
"content": {
"class": "RecordArray",
"fields": ["pt", "eta", "phi", "crossref"],
"contents": [
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "muon_pt!",
},
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "muon_eta!",
},
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "muon_phi!",
},
{
"class": "ListOffsetArray",
"offsets": "i64",
"content": {
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "muon_crossref_content!",
},
"parameters": {},
"form_key": "muon_crossref_index!",
},
],
"parameters": {},
"form_key": "muon_record!",
},
"parameters": {},
"form_key": "muon_list!",
},
{
"class": "ListOffsetArray",
"offsets": "i64",
"content": {
"class": "RecordArray",
"fields": ["pt", "eta", "phi", "crossref", "thing1"],
"contents": [
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "jet_pt!",
},
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "jet_eta!",
},
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "jet_phi!",
},
{
"class": "ListOffsetArray",
"offsets": "i64",
"content": {
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "jet_crossref_content!",
},
"parameters": {},
"form_key": "jet_crossref_index!",
},
{
"class": "NumpyArray",
"primitive": "int64",
"inner_shape": [],
"parameters": {},
"form_key": "jet_thing1!",
},
],
"parameters": {},
"form_key": "jet_record!",
},
"parameters": {},
"form_key": "jet_list!",
},
],
"parameters": {},
"form_key": "outer!",
}
)
ttlayout, report = ak.typetracer.typetracer_with_report(form)
ttarray = ak.Array(ttlayout)
a = ak.cartesian([ttarray.muon, ttarray.jet], axis=1, nested=True)
mval = delta_r2(a["0"], a["1"])
assert set(report.data_touched) == {
"muon_list!",
"jet_list!",
"muon_eta!",
"jet_eta!",
"muon_phi!",
"jet_phi!",
}
mmin = ak.argmin(mval, axis=2)
assert set(report.data_touched) == {
"muon_list!",
"jet_list!",
"muon_eta!",
"jet_eta!",
"muon_phi!",
"jet_phi!",
}
ak.firsts(a["1"][mmin], axis=2)
assert set(report.data_touched) == {
"muon_list!",
"jet_list!",
"muon_eta!",
"jet_eta!",
"muon_phi!",
"jet_phi!",
}
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