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# Copyright 2013-2024 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)
import spack.platforms
from spack.package import *
from spack.pkg.builtin.mock.multimethod_base import MultimethodBase
class Multimethod(MultimethodBase):
"""This package is designed for use with Spack's multimethod test.
It has a bunch of test cases for the @when decorator that the
test uses.
"""
homepage = "http://www.example.com/"
url = "http://www.example.com/example-1.0.tar.gz"
version("5.0", md5="0123456789abcdef0123456789abcdef")
version("4.0", md5="0123456789abcdef0123456789abcdef")
version("3.0", md5="0123456789abcdef0123456789abcdef")
version("2.0", md5="0123456789abcdef0123456789abcdef")
version("1.0", md5="0123456789abcdef0123456789abcdef")
variant("mpi", default=False, description="")
depends_on("mpi", when="+mpi")
#
# These functions are only valid for versions 1, 3, and 4.
#
@when("@1.0")
def no_version_2(self):
return 1
@when("@3.0")
def no_version_2(self):
return 3
@when("@4.0")
def no_version_2(self):
return 4
#
# These functions overlap, so there is ambiguity, but we'll take
# the first one.
#
@when("@:4")
def version_overlap(self):
return 1
@when("@2:")
def version_overlap(self):
return 2
#
# More complicated case with cascading versions.
#
def mpi_version(self):
return 0
@when("^mpi@3:")
def mpi_version(self):
return 3
@when("^mpi@2:")
def mpi_version(self):
return 2
@when("^mpi@1:")
def mpi_version(self):
return 1
#
# Use these to test whether the default method is called when no
# match is found. This also tests whether we can switch methods
# on compilers
#
def has_a_default(self):
return "default"
@when("%gcc")
def has_a_default(self):
return "gcc"
@when("%clang")
def has_a_default(self):
return "clang"
#
# Make sure we can switch methods on different target
#
platform = spack.platforms.host()
targets = list(platform.targets.values())
if len(targets) > 1:
targets = targets[:-1]
for target in targets:
@when("target=" + target.name)
def different_by_target(self):
if isinstance(self.spec.architecture.target, str):
return self.spec.architecture.target
else:
return self.spec.architecture.target.name
#
# Make sure we can switch methods on different dependencies
#
@when("^mpich")
def different_by_dep(self):
return "mpich"
@when("^zmpi")
def different_by_dep(self):
return "zmpi"
#
# Make sure we can switch on virtual dependencies
#
def different_by_virtual_dep(self):
return 1
@when("^mpi@2:")
def different_by_virtual_dep(self):
return 2
#
# Make sure methods with a default implementation in a superclass
# will invoke that method when none in the subclass match.
#
@when("@2:")
def base_method(self):
return "multimethod"
#
# Make sure methods with non-default implementations in a superclass
# will invoke those methods when none in the subclass match but one in
# the superclass does.
#
@when("@1.0")
def inherited_and_overridden(self):
return "base@1.0"
@when("@2.0")
def inherited_and_overridden(self):
return "base@2.0"
#
# Make sure that multimethods follow MRO properly with diamond inheritance
#
@when("@2.0")
def diamond_inheritance(self):
return "first_parent"
@when("@4.0")
def diamond_inheritance(self):
return "should_not_be_reached by diamond inheritance test"
#
# Check that multimethods work with boolean values
#
@when(True)
def boolean_true_first(self):
return "True"
@when(False)
def boolean_true_first(self):
return "False"
@when(False)
def boolean_false_first(self):
return "False"
@when(True)
def boolean_false_first(self):
return "True"
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