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# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class ChainD(Package):
"""
Part of a collection of mock packages used for testing depth-first vs
breadth-first traversal. The DAG they form:
a --> b --> c --> d # a chain
a --> c # "skip" connection
a --> d # "skip" connection
Spack's edge order is based on the child package name.
In depth-first traversal we get a tree that looks like a chain:
a
b
c
d
In breadth-first we get the tree:
a
b
c
d
"""
homepage = "https://example.com"
has_code = False
version("1.0")
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