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fix: generate an array view when an Array C++ type is requested #2335

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merged 1 commit into from
Mar 22, 2023
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fix: generate an array view when an Array C++ type is requested #2335

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8 changes: 5 additions & 3 deletions src/awkward/highlevel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1474,12 +1474,14 @@ def cpp_type(self):
"""
ak.cppyy.register_and_check()

import cppyy

if self._cpp_type is None:
# FIXME: see where and if to keep the lookup
self._generator = ak._connect.cling.togenerator(
self.layout.form, flatlist_as_rvec=False
)
self._lookup = ak._lookup.Lookup(self.layout)
self._generator.generate(cppyy.cppdef)
self._cpp_type = f"awkward::{self._generator.class_type()}"

return self._cpp_type
Expand All @@ -1491,11 +1493,11 @@ def __cast_cpp__(self):
parameters needed to construct the C++ type of this Array when it is
used in cppyy.
"""
import cppyy

if self._cpp_type is None:
self._cpp_type = self.cpp_type

import cppyy

return getattr(cppyy.gbl, self._cpp_type)(
0, len(self), 0, self._lookup.arrayptrs, 0
)
Expand Down