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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import gc
import sys
import numpy as np # noqa: F401
import pytest
import awkward as ak
numba = pytest.importorskip("numba")
ak.numba.register_and_check()
def test_refcount():
array = ak.highlevel.Array([1, 2, 3])
@numba.njit
def f1():
array # noqa: B018 (we want to test the unboxing)
return 3.14
@numba.njit
def f2():
array, array # noqa: B018 (we want to test the unboxing)
return 3.14
assert sys.getrefcount(array) == 2
f1()
assert sys.getrefcount(array) == 3
f2()
assert sys.getrefcount(array) == 5
del f1
gc.collect()
assert sys.getrefcount(array) == 4
def test_Array():
array = ak.highlevel.Array([1, 2, 3])
@numba.njit
def f1():
array # noqa: B018 (we want to test the unboxing)
return 3.14
f1()
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
@numba.njit
def f2():
return array
a = f2()
assert a.to_list() == [1, 2, 3]
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
@numba.njit
def f3():
return array, array
b, c = f3()
assert b.to_list() == [1, 2, 3]
assert c.to_list() == [1, 2, 3]
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
del a
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
del b
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
del c
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
@numba.njit
def f4():
return array[1]
assert f4() == 2
assert (
sys.getrefcount(array._numbaview),
sys.getrefcount(array._numbaview.lookup),
) == (2, 2)
def test_Record():
record = ak.Record({"x": 1, "y": [1, 2, 3]})
@numba.njit
def f1():
return record.y[1]
assert f1() == 2
def test_ArrayBuilder():
builder = ak.highlevel.ArrayBuilder()
assert sys.getrefcount(builder._layout) == 3
@numba.njit
def f():
builder.append(1)
builder.append(2)
builder.append(3)
return builder, builder
@numba.njit
def g():
builder.append(1)
builder.append(2)
builder.append(3)
b, c = f()
assert b.snapshot().to_list() == [1, 2, 3]
assert c.snapshot().to_list() == [1, 2, 3]
assert builder.snapshot().to_list() == [1, 2, 3]
assert sys.getrefcount(builder._layout) == 5
g()
assert b.snapshot().to_list() == [1, 2, 3, 1, 2, 3]
assert c.snapshot().to_list() == [1, 2, 3, 1, 2, 3]
assert builder.snapshot().to_list() == [1, 2, 3, 1, 2, 3]
assert sys.getrefcount(builder._layout) == 5
del b._layout
assert sys.getrefcount(builder._layout) == 4
del c._layout
assert sys.getrefcount(builder._layout) == 3
|
